TUN-3467: Serialize cf-cloudflared-response-meta during package initialization using jsoniter
This commit is contained in:
parent
9ac40dcf04
commit
6886e5f90a
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@ -204,13 +204,15 @@ type h2muxRespWriter struct {
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}
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func (rp *h2muxRespWriter) WriteRespHeaders(resp *http.Response) error {
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return rp.WriteHeaders(h2mux.H1ResponseToH2ResponseHeaders(resp))
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headers := h2mux.H1ResponseToH2ResponseHeaders(resp)
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headers = append(headers, h2mux.Header{Name: responseMetaHeaderField, Value: responseSourceOrigin})
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return rp.WriteHeaders(headers)
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}
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func (rp *h2muxRespWriter) WriteErrorResponse(err error) {
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rp.WriteHeaders([]h2mux.Header{
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{Name: ":status", Value: "502"},
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h2mux.CreateResponseMetaHeader(h2mux.ResponseMetaHeaderField, h2mux.ResponseSourceCloudflared),
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{Name: responseMetaHeaderField, Value: responseSourceCloudflared},
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})
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rp.Write([]byte("502 Bad Gateway"))
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}
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@ -0,0 +1,33 @@
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package connection
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import (
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"fmt"
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"net/http"
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"github.com/cloudflare/cloudflared/h2mux"
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)
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const (
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responseMetaHeaderField = "cf-cloudflared-response-meta"
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responseSourceCloudflared = "cloudflared"
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responseSourceOrigin = "origin"
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)
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var (
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canonicalResponseUserHeadersField = http.CanonicalHeaderKey(h2mux.ResponseUserHeadersField)
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canonicalResponseMetaHeaderField = http.CanonicalHeaderKey(responseMetaHeaderField)
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responseMetaHeaderCfd = mustInitRespMetaHeader(responseSourceCloudflared)
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responseMetaHeaderOrigin = mustInitRespMetaHeader(responseSourceOrigin)
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)
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type responseMetaHeader struct {
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Source string `json:"src"`
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}
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func mustInitRespMetaHeader(src string) string {
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header, err := json.Marshal(responseMetaHeader{Source: src})
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if err != nil {
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panic(fmt.Sprintf("Failed to serialize response meta header = %s, err: %v", responseSourceCloudflared, err))
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}
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return string(header)
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}
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@ -2,13 +2,14 @@ package connection
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import (
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"context"
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"encoding/json"
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"fmt"
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"io"
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"math"
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"net"
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"net/http"
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"net/url"
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"strings"
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"sync"
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"github.com/cloudflare/cloudflared/h2mux"
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tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
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@ -32,14 +33,16 @@ type HTTP2Connection struct {
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observer *Observer
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connIndexStr string
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connIndex uint8
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shutdownChan chan struct{}
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wg *sync.WaitGroup
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connectedFuse ConnectedFuse
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}
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func NewHTTP2Connection(conn net.Conn, config *Config, originURL *url.URL, namedTunnelConfig *NamedTunnelConfig, connOptions *tunnelpogs.ConnectionOptions, observer *Observer, connIndex uint8, connectedFuse ConnectedFuse) (*HTTP2Connection, error) {
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return &HTTP2Connection{
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conn: conn,
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server: &http2.Server{},
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conn: conn,
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server: &http2.Server{
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MaxConcurrentStreams: math.MaxUint32,
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},
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config: config,
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originURL: originURL,
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namedTunnel: namedTunnelConfig,
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@ -47,7 +50,7 @@ func NewHTTP2Connection(conn net.Conn, config *Config, originURL *url.URL, named
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observer: observer,
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connIndexStr: uint8ToString(connIndex),
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connIndex: connIndex,
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shutdownChan: make(chan struct{}),
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wg: &sync.WaitGroup{},
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connectedFuse: connectedFuse,
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}, nil
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}
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@ -64,6 +67,9 @@ func (c *HTTP2Connection) Serve(ctx context.Context) {
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}
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func (c *HTTP2Connection) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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c.wg.Add(1)
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defer c.wg.Done()
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r.URL.Scheme = c.originURL.Scheme
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r.URL.Host = c.originURL.Host
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@ -103,9 +109,8 @@ func (c *HTTP2Connection) serveControlStream(ctx context.Context, h2RespWriter *
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}
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c.connectedFuse.Connected()
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<-c.shutdownChan
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<-ctx.Done()
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c.gracefulShutdown(ctx, rpcClient)
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close(c.shutdownChan)
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return nil
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}
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@ -135,10 +140,8 @@ func (c *HTTP2Connection) gracefulShutdown(ctx context.Context, rpcClient *regis
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}
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func (c *HTTP2Connection) close() {
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// Send signal to control loop to start graceful shutdown
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c.shutdownChan <- struct{}{}
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// Wait for control loop to close channel
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<-c.shutdownChan
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// Wait for all serve HTTP handlers to return
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c.wg.Wait()
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c.conn.Close()
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}
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@ -168,7 +171,8 @@ func (rp *http2RespWriter) WriteRespHeaders(resp *http.Response) error {
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}
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// Perform user header serialization and set them in the single header
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dest.Set(h2mux.ResponseUserHeadersField, h2mux.SerializeHeaders(userHeaders))
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dest.Set(canonicalResponseUserHeadersField, h2mux.SerializeHeaders(userHeaders))
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rp.setResponseMetaHeader(responseMetaHeaderCfd)
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status := resp.StatusCode
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// HTTP2 removes support for 101 Switching Protocols https://tools.ietf.org/html/rfc7540#section-8.1.1
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if status == http.StatusSwitchingProtocols {
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@ -179,13 +183,14 @@ func (rp *http2RespWriter) WriteRespHeaders(resp *http.Response) error {
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}
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func (rp *http2RespWriter) WriteErrorResponse(err error) {
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jsonResponseMetaHeader, err := json.Marshal(h2mux.ResponseMetaHeader{Source: h2mux.ResponseSourceCloudflared})
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if err == nil {
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rp.w.Header().Set(h2mux.ResponseMetaHeaderField, string(jsonResponseMetaHeader))
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}
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rp.setResponseMetaHeader(responseMetaHeaderCfd)
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rp.w.WriteHeader(http.StatusBadGateway)
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}
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func (rp *http2RespWriter) setResponseMetaHeader(value string) {
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rp.w.Header().Set(canonicalResponseMetaHeaderField, value)
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}
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func (rp *http2RespWriter) Read(p []byte) (n int, err error) {
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return rp.r.Read(p)
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}
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@ -195,7 +200,7 @@ func (wr *http2RespWriter) Write(p []byte) (n int, err error) {
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}
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type wsRespWriter struct {
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h2 *http2RespWriter
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*http2RespWriter
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flusher http.Flusher
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}
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@ -205,34 +210,24 @@ func newWSRespWriter(h2 *http2RespWriter) (*wsRespWriter, error) {
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return nil, fmt.Errorf("ResponseWriter doesn't implement http.Flusher")
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}
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return &wsRespWriter{
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h2: h2,
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flusher: flusher,
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h2,
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flusher,
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}, nil
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}
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func (rw *wsRespWriter) WriteRespHeaders(resp *http.Response) error {
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err := rw.h2.WriteRespHeaders(resp)
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if err != nil {
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return err
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func (rw *wsRespWriter) WriteRespHeaders(resp *http.Response) (err error) {
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err = rw.http2RespWriter.WriteRespHeaders(resp)
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if err == nil {
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rw.flusher.Flush()
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}
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rw.flusher.Flush()
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return nil
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}
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func (rw *wsRespWriter) WriteErrorResponse(err error) {
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rw.h2.WriteErrorResponse(err)
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}
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func (rw *wsRespWriter) Read(p []byte) (n int, err error) {
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return rw.h2.Read(p)
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return
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}
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func (rw *wsRespWriter) Write(p []byte) (n int, err error) {
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n, err = rw.h2.Write(p)
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if err != nil {
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return
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n, err = rw.http2RespWriter.Write(p)
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if err == nil {
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rw.flusher.Flush()
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}
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rw.flusher.Flush()
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return
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}
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@ -0,0 +1,7 @@
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package connection
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import (
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jsoniter "github.com/json-iterator/go"
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)
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var json = jsoniter.ConfigFastest
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3
go.mod
3
go.mod
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@ -15,7 +15,7 @@ require (
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github.com/coreos/go-oidc v0.0.0-20171002155002-a93f71fdfe73
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github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf
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github.com/denisenkom/go-mssqldb v0.0.0-20191001013358-cfbb681360f0
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github.com/equinox-io/equinox v1.2.0
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github.com/equinox-io/equinox v1.2.0 // indirect
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github.com/facebookgo/ensure v0.0.0-20160127193407-b4ab57deab51 // indirect
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github.com/facebookgo/freeport v0.0.0-20150612182905-d4adf43b75b9 // indirect
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github.com/facebookgo/grace v0.0.0-20180706040059-75cf19382434
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@ -33,6 +33,7 @@ require (
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github.com/gorilla/mux v1.7.3
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github.com/gorilla/websocket v1.4.2
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github.com/jmoiron/sqlx v1.2.0
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github.com/json-iterator/go v1.1.10
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github.com/kr/text v0.2.0 // indirect
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github.com/kshvakov/clickhouse v1.3.11
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github.com/kylelemons/godebug v1.1.0 // indirect
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3
go.sum
3
go.sum
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@ -369,6 +369,7 @@ github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCV
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github.com/json-iterator/go v1.1.7/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
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github.com/json-iterator/go v1.1.8/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
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github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
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github.com/json-iterator/go v1.1.10 h1:Kz6Cvnvv2wGdaG/V8yMvfkmNiXq9Ya2KUv4rouJJr68=
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github.com/json-iterator/go v1.1.10/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
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github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1:6v2b51hI/fHJwM22ozAgKL4VKDeJcHhJFhtBdhmNjmU=
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github.com/jstemmer/go-junit-report v0.9.1/go.mod h1:Brl9GWCQeLvo8nXZwPNNblvFj/XSXhF0NWZEnDohbsk=
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@ -441,8 +442,10 @@ github.com/mitchellh/iochan v1.0.0/go.mod h1:JwYml1nuB7xOzsp52dPpHFffvOCDupsG0Qu
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github.com/mitchellh/mapstructure v0.0.0-20160808181253-ca63d7c062ee/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
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github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
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github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
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github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
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github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
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github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
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github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
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github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
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github.com/munnerz/goautoneg v0.0.0-20120707110453-a547fc61f48d/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
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github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
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@ -2,7 +2,6 @@ package h2mux
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import (
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"encoding/base64"
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"encoding/json"
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"fmt"
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"net/http"
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"net/url"
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@ -22,10 +21,6 @@ const (
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RequestUserHeadersField = "cf-cloudflared-request-headers"
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ResponseUserHeadersField = "cf-cloudflared-response-headers"
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ResponseMetaHeaderField = "cf-cloudflared-response-meta"
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ResponseSourceCloudflared = "cloudflared"
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ResponseSourceOrigin = "origin"
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CFAccessTokenHeader = "cf-access-token"
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CFJumpDestinationHeader = "CF-Access-Jump-Destination"
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CFAccessClientIDHeader = "CF-Access-Client-Id"
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@ -152,7 +147,6 @@ func H1ResponseToH2ResponseHeaders(h1 *http.Response) (h2 []Header) {
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// Perform user header serialization and set them in the single header
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h2 = append(h2, Header{ResponseUserHeadersField, SerializeHeaders(userHeaders)})
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return h2
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}
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@ -238,19 +232,3 @@ func DeserializeHeaders(serializedHeaders string) ([]Header, error) {
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return deserialized, nil
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}
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type ResponseMetaHeader struct {
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Source string `json:"src"`
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}
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func CreateResponseMetaHeader(headerName, source string) Header {
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jsonResponseMetaHeader, err := json.Marshal(ResponseMetaHeader{Source: source})
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if err != nil {
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panic(err)
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}
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return Header{
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Name: headerName,
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Value: string(jsonResponseMetaHeader),
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}
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}
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@ -1,13 +0,0 @@
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language: go
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go:
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- "1.4"
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- "1.5"
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- "1.7"
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- "1.9"
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- "1.10"
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- "1.11"
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- "tip"
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matrix:
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allow_failures:
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- go: tip
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script: go test -v github.com/equinox-io/equinox github.com/equinox-io/equinox/proto
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@ -1,99 +0,0 @@
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# equinox client SDK [![godoc reference](https://godoc.org/github.com/equinox-io/equinox?status.png)](https://godoc.org/github.com/equinox-io/equinox)
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Package equinox allows applications to remotely update themselves with the [equinox.io](https://equinox.io) service.
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## Minimal Working Example
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```go
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import "github.com/equinox-io/equinox"
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const appID = "<YOUR EQUINOX APP ID>"
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var publicKey = []byte(`
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-----BEGIN PUBLIC KEY-----
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MFYwEAYHKoZIzj0CAQYFK4EEAAoDQgAEtrVmBxQvheRArXjg2vG1xIprWGuCyESx
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MMY8pjmjepSy2kuz+nl9aFLqmr+rDNdYvEBqQaZrYMc6k29gjvoQnQ==
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-----END PUBLIC KEY-----
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`)
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func update(channel string) error {
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opts := equinox.Options{Channel: channel}
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if err := opts.SetPublicKeyPEM(publicKey); err != nil {
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return err
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}
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// check for the update
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resp, err := equinox.Check(appID, opts)
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switch {
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case err == equinox.NotAvailableErr:
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fmt.Println("No update available, already at the latest version!")
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return nil
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case err != nil:
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return err
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}
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// fetch the update and apply it
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err = resp.Apply()
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if err != nil {
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return err
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}
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fmt.Printf("Updated to new version: %s!\n", resp.ReleaseVersion)
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return nil
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}
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```
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## Update To Specific Version
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When you specify a channel in the update options, equinox will try to update the application
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to the latest release of your application published to that channel. Instead, you may wish to
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update the application to a specific (possibly older) version. You can do this by explicitly setting
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Version in the Options struct:
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```go
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opts := equinox.Options{Version: "0.1.2"}
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```
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## Prompt For Update
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You may wish to ask the user for approval before updating to a new version. This is as simple
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as calling the Check function and only calling Apply on the returned result if the user approves.
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Example:
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```go
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// check for the update
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resp, err := equinox.Check(appID, opts)
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switch {
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case err == equinox.NotAvailableErr:
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fmt.Println("No update available, already at the latest version!")
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return nil
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case err != nil:
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return err
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}
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fmt.Println("New version available!")
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fmt.Println("Version:", resp.ReleaseVersion)
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fmt.Println("Name:", resp.ReleaseTitle)
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fmt.Println("Details:", resp.ReleaseDescription)
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ok := prompt("Would you like to update?")
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if !ok {
|
||||
return
|
||||
}
|
||||
|
||||
err = resp.Apply()
|
||||
// ...
|
||||
```
|
||||
|
||||
## Generating Keys
|
||||
|
||||
All equinox releases must be signed with a private ECDSA key, and all updates verified with the
|
||||
public key portion. To do that, you'll need to generate a key pair. The equinox release tool can
|
||||
generate an ecdsa key pair for you easily:
|
||||
|
||||
```shell
|
||||
equinox genkey
|
||||
```
|
||||
|
|
@ -1,92 +0,0 @@
|
|||
/*
|
||||
Package equinox allows applications to remotely update themselves with the equinox.io service.
|
||||
|
||||
Minimal Working Example
|
||||
|
||||
import "github.com/equinox-io/equinox"
|
||||
|
||||
const appID = "<YOUR EQUINOX APP ID>"
|
||||
|
||||
var publicKey = []byte(`
|
||||
-----BEGIN PUBLIC KEY-----
|
||||
MFYwEAYHKoZIzj0CAQYFK4EEAAoDQgAEtrVmBxQvheRArXjg2vG1xIprWGuCyESx
|
||||
MMY8pjmjepSy2kuz+nl9aFLqmr+rDNdYvEBqQaZrYMc6k29gjvoQnQ==
|
||||
-----END PUBLIC KEY-----
|
||||
`)
|
||||
|
||||
func update(channel string) error {
|
||||
opts := equinox.Options{Channel: channel}
|
||||
if err := opts.SetPublicKeyPEM(publicKey); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// check for the update
|
||||
resp, err := equinox.Check(appID, opts)
|
||||
switch {
|
||||
case err == equinox.NotAvailableErr:
|
||||
fmt.Println("No update available, already at the latest version!")
|
||||
return nil
|
||||
case err != nil:
|
||||
return err
|
||||
}
|
||||
|
||||
// fetch the update and apply it
|
||||
err = resp.Apply()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
fmt.Printf("Updated to new version: %s!\n", resp.ReleaseVersion)
|
||||
return nil
|
||||
}
|
||||
|
||||
|
||||
Update To Specific Version
|
||||
|
||||
When you specify a channel in the update options, equinox will try to update the application
|
||||
to the latest release of your application published to that channel. Instead, you may wish to
|
||||
update the application to a specific (possibly older) version. You can do this by explicitly setting
|
||||
Version in the Options struct:
|
||||
|
||||
opts := equinox.Options{Version: "0.1.2"}
|
||||
|
||||
Prompt For Update
|
||||
|
||||
You may wish to ask the user for approval before updating to a new version. This is as simple
|
||||
as calling the Check function and only calling Apply on the returned result if the user approves.
|
||||
Example:
|
||||
|
||||
// check for the update
|
||||
resp, err := equinox.Check(appID, opts)
|
||||
switch {
|
||||
case err == equinox.NotAvailableErr:
|
||||
fmt.Println("No update available, already at the latest version!")
|
||||
return nil
|
||||
case err != nil:
|
||||
return err
|
||||
}
|
||||
|
||||
fmt.Println("New version available!")
|
||||
fmt.Println("Version:", resp.ReleaseVersion)
|
||||
fmt.Println("Name:", resp.ReleaseTitle)
|
||||
fmt.Println("Details:", resp.ReleaseDescription)
|
||||
|
||||
ok := prompt("Would you like to update?")
|
||||
|
||||
if !ok {
|
||||
return
|
||||
}
|
||||
|
||||
err = resp.Apply()
|
||||
// ...
|
||||
|
||||
Generating Keys
|
||||
|
||||
All equinox releases must be signed with a private ECDSA key, and all updates verified with the
|
||||
public key portion. To do that, you'll need to generate a key pair. The equinox release tool can
|
||||
generate an ecdsa key pair for you easily:
|
||||
|
||||
equinox genkey
|
||||
|
||||
*/
|
||||
package equinox
|
|
@ -1 +0,0 @@
|
|||
module github.com/equinox-io/equinox
|
|
@ -1,13 +0,0 @@
|
|||
Copyright 2015 Alan Shreve
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
|
@ -1,65 +0,0 @@
|
|||
# go-update: Build self-updating Go programs [![godoc reference](https://godoc.org/github.com/inconshreveable/go-update?status.png)](https://godoc.org/github.com/inconshreveable/go-update)
|
||||
|
||||
Package update provides functionality to implement secure, self-updating Go programs (or other single-file targets)
|
||||
A program can update itself by replacing its executable file with a new version.
|
||||
|
||||
It provides the flexibility to implement different updating user experiences
|
||||
like auto-updating, or manual user-initiated updates. It also boasts
|
||||
advanced features like binary patching and code signing verification.
|
||||
|
||||
Example of updating from a URL:
|
||||
|
||||
```go
|
||||
import (
|
||||
"fmt"
|
||||
"net/http"
|
||||
|
||||
"github.com/inconshreveable/go-update"
|
||||
)
|
||||
|
||||
func doUpdate(url string) error {
|
||||
resp, err := http.Get(url)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
err := update.Apply(resp.Body, update.Options{})
|
||||
if err != nil {
|
||||
// error handling
|
||||
}
|
||||
return err
|
||||
}
|
||||
```
|
||||
|
||||
## Features
|
||||
|
||||
- Cross platform support (Windows too!)
|
||||
- Binary patch application
|
||||
- Checksum verification
|
||||
- Code signing verification
|
||||
- Support for updating arbitrary files
|
||||
|
||||
## [equinox.io](https://equinox.io)
|
||||
[equinox.io](https://equinox.io) is a complete ready-to-go updating solution built on top of go-update that provides:
|
||||
|
||||
- Hosted updates
|
||||
- Update channels (stable, beta, nightly, ...)
|
||||
- Dynamically computed binary diffs
|
||||
- Automatic key generation and code
|
||||
- Release tooling with proper code signing
|
||||
- Update/download metrics
|
||||
|
||||
## API Compatibility Promises
|
||||
The master branch of `go-update` is *not* guaranteed to have a stable API over time. For any production application, you should vendor
|
||||
your dependency on `go-update` with a tool like git submodules, [gb](http://getgb.io/) or [govendor](https://github.com/kardianos/govendor).
|
||||
|
||||
The `go-update` package makes the following promises about API compatibility:
|
||||
1. A list of all API-breaking changes will be documented in this README.
|
||||
1. `go-update` will strive for as few API-breaking changes as possible.
|
||||
|
||||
## API Breaking Changes
|
||||
- **Sept 3, 2015**: The `Options` struct passed to `Apply` was changed to be passed by value instead of passed by pointer. Old API at `28de026`.
|
||||
- **Aug 9, 2015**: 2.0 API. Old API at `221d034` or `gopkg.in/inconshreveable/go-update.v0`.
|
||||
|
||||
## License
|
||||
Apache
|
|
@ -1,322 +0,0 @@
|
|||
package update
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"crypto"
|
||||
"crypto/x509"
|
||||
"encoding/pem"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"io/ioutil"
|
||||
"os"
|
||||
"path/filepath"
|
||||
|
||||
"github.com/equinox-io/equinox/internal/go-update/internal/osext"
|
||||
)
|
||||
|
||||
var (
|
||||
openFile = os.OpenFile
|
||||
)
|
||||
|
||||
// Apply performs an update of the current executable (or opts.TargetFile, if set) with the contents of the given io.Reader.
|
||||
//
|
||||
// Apply performs the following actions to ensure a safe cross-platform update:
|
||||
//
|
||||
// 1. If configured, applies the contents of the update io.Reader as a binary patch.
|
||||
//
|
||||
// 2. If configured, computes the checksum of the new executable and verifies it matches.
|
||||
//
|
||||
// 3. If configured, verifies the signature with a public key.
|
||||
//
|
||||
// 4. Creates a new file, /path/to/.target.new with the TargetMode with the contents of the updated file
|
||||
//
|
||||
// 5. Renames /path/to/target to /path/to/.target.old
|
||||
//
|
||||
// 6. Renames /path/to/.target.new to /path/to/target
|
||||
//
|
||||
// 7. If the final rename is successful, deletes /path/to/.target.old, returns no error. On Windows,
|
||||
// the removal of /path/to/target.old always fails, so instead Apply hides the old file instead.
|
||||
//
|
||||
// 8. If the final rename fails, attempts to roll back by renaming /path/to/.target.old
|
||||
// back to /path/to/target.
|
||||
//
|
||||
// If the roll back operation fails, the file system is left in an inconsistent state (betweet steps 5 and 6) where
|
||||
// there is no new executable file and the old executable file could not be be moved to its original location. In this
|
||||
// case you should notify the user of the bad news and ask them to recover manually. Applications can determine whether
|
||||
// the rollback failed by calling RollbackError, see the documentation on that function for additional detail.
|
||||
func Apply(update io.Reader, opts Options) error {
|
||||
// validate
|
||||
verify := false
|
||||
switch {
|
||||
case opts.Signature != nil && opts.PublicKey != nil:
|
||||
// okay
|
||||
verify = true
|
||||
case opts.Signature != nil:
|
||||
return errors.New("no public key to verify signature with")
|
||||
case opts.PublicKey != nil:
|
||||
return errors.New("No signature to verify with")
|
||||
}
|
||||
|
||||
// set defaults
|
||||
if opts.Hash == 0 {
|
||||
opts.Hash = crypto.SHA256
|
||||
}
|
||||
if opts.Verifier == nil {
|
||||
opts.Verifier = NewECDSAVerifier()
|
||||
}
|
||||
if opts.TargetMode == 0 {
|
||||
opts.TargetMode = 0755
|
||||
}
|
||||
|
||||
// get target path
|
||||
var err error
|
||||
opts.TargetPath, err = opts.getPath()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
var newBytes []byte
|
||||
if opts.Patcher != nil {
|
||||
if newBytes, err = opts.applyPatch(update); err != nil {
|
||||
return err
|
||||
}
|
||||
} else {
|
||||
// no patch to apply, go on through
|
||||
if newBytes, err = ioutil.ReadAll(update); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
// verify checksum if requested
|
||||
if opts.Checksum != nil {
|
||||
if err = opts.verifyChecksum(newBytes); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
if verify {
|
||||
if err = opts.verifySignature(newBytes); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
// get the directory the executable exists in
|
||||
updateDir := filepath.Dir(opts.TargetPath)
|
||||
filename := filepath.Base(opts.TargetPath)
|
||||
|
||||
// Copy the contents of newbinary to a new executable file
|
||||
newPath := filepath.Join(updateDir, fmt.Sprintf(".%s.new", filename))
|
||||
fp, err := openFile(newPath, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, opts.TargetMode)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer fp.Close()
|
||||
|
||||
_, err = io.Copy(fp, bytes.NewReader(newBytes))
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// if we don't call fp.Close(), windows won't let us move the new executable
|
||||
// because the file will still be "in use"
|
||||
fp.Close()
|
||||
|
||||
// this is where we'll move the executable to so that we can swap in the updated replacement
|
||||
oldPath := opts.OldSavePath
|
||||
removeOld := opts.OldSavePath == ""
|
||||
if removeOld {
|
||||
oldPath = filepath.Join(updateDir, fmt.Sprintf(".%s.old", filename))
|
||||
}
|
||||
|
||||
// delete any existing old exec file - this is necessary on Windows for two reasons:
|
||||
// 1. after a successful update, Windows can't remove the .old file because the process is still running
|
||||
// 2. windows rename operations fail if the destination file already exists
|
||||
_ = os.Remove(oldPath)
|
||||
|
||||
// move the existing executable to a new file in the same directory
|
||||
err = os.Rename(opts.TargetPath, oldPath)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// move the new exectuable in to become the new program
|
||||
err = os.Rename(newPath, opts.TargetPath)
|
||||
|
||||
if err != nil {
|
||||
// move unsuccessful
|
||||
//
|
||||
// The filesystem is now in a bad state. We have successfully
|
||||
// moved the existing binary to a new location, but we couldn't move the new
|
||||
// binary to take its place. That means there is no file where the current executable binary
|
||||
// used to be!
|
||||
// Try to rollback by restoring the old binary to its original path.
|
||||
rerr := os.Rename(oldPath, opts.TargetPath)
|
||||
if rerr != nil {
|
||||
return &rollbackErr{err, rerr}
|
||||
}
|
||||
|
||||
return err
|
||||
}
|
||||
|
||||
// move successful, remove the old binary if needed
|
||||
if removeOld {
|
||||
errRemove := os.Remove(oldPath)
|
||||
|
||||
// windows has trouble with removing old binaries, so hide it instead
|
||||
if errRemove != nil {
|
||||
_ = hideFile(oldPath)
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// RollbackError takes an error value returned by Apply and returns the error, if any,
|
||||
// that occurred when attempting to roll back from a failed update. Applications should
|
||||
// always call this function on any non-nil errors returned by Apply.
|
||||
//
|
||||
// If no rollback was needed or if the rollback was successful, RollbackError returns nil,
|
||||
// otherwise it returns the error encountered when trying to roll back.
|
||||
func RollbackError(err error) error {
|
||||
if err == nil {
|
||||
return nil
|
||||
}
|
||||
if rerr, ok := err.(*rollbackErr); ok {
|
||||
return rerr.rollbackErr
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type rollbackErr struct {
|
||||
error // original error
|
||||
rollbackErr error // error encountered while rolling back
|
||||
}
|
||||
|
||||
type Options struct {
|
||||
// TargetPath defines the path to the file to update.
|
||||
// The emptry string means 'the executable file of the running program'.
|
||||
TargetPath string
|
||||
|
||||
// Create TargetPath replacement with this file mode. If zero, defaults to 0755.
|
||||
TargetMode os.FileMode
|
||||
|
||||
// Checksum of the new binary to verify against. If nil, no checksum or signature verification is done.
|
||||
Checksum []byte
|
||||
|
||||
// Public key to use for signature verification. If nil, no signature verification is done.
|
||||
PublicKey crypto.PublicKey
|
||||
|
||||
// Signature to verify the updated file. If nil, no signature verification is done.
|
||||
Signature []byte
|
||||
|
||||
// Pluggable signature verification algorithm. If nil, ECDSA is used.
|
||||
Verifier Verifier
|
||||
|
||||
// Use this hash function to generate the checksum. If not set, SHA256 is used.
|
||||
Hash crypto.Hash
|
||||
|
||||
// If nil, treat the update as a complete replacement for the contents of the file at TargetPath.
|
||||
// If non-nil, treat the update contents as a patch and use this object to apply the patch.
|
||||
Patcher Patcher
|
||||
|
||||
// Store the old executable file at this path after a successful update.
|
||||
// The empty string means the old executable file will be removed after the update.
|
||||
OldSavePath string
|
||||
}
|
||||
|
||||
// CheckPermissions determines whether the process has the correct permissions to
|
||||
// perform the requested update. If the update can proceed, it returns nil, otherwise
|
||||
// it returns the error that would occur if an update were attempted.
|
||||
func (o *Options) CheckPermissions() error {
|
||||
// get the directory the file exists in
|
||||
path, err := o.getPath()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
fileDir := filepath.Dir(path)
|
||||
fileName := filepath.Base(path)
|
||||
|
||||
// attempt to open a file in the file's directory
|
||||
newPath := filepath.Join(fileDir, fmt.Sprintf(".%s.new", fileName))
|
||||
fp, err := openFile(newPath, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, o.TargetMode)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
fp.Close()
|
||||
|
||||
_ = os.Remove(newPath)
|
||||
return nil
|
||||
}
|
||||
|
||||
// SetPublicKeyPEM is a convenience method to set the PublicKey property
|
||||
// used for checking a completed update's signature by parsing a
|
||||
// Public Key formatted as PEM data.
|
||||
func (o *Options) SetPublicKeyPEM(pembytes []byte) error {
|
||||
block, _ := pem.Decode(pembytes)
|
||||
if block == nil {
|
||||
return errors.New("couldn't parse PEM data")
|
||||
}
|
||||
|
||||
pub, err := x509.ParsePKIXPublicKey(block.Bytes)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
o.PublicKey = pub
|
||||
return nil
|
||||
}
|
||||
|
||||
func (o *Options) getPath() (string, error) {
|
||||
if o.TargetPath == "" {
|
||||
return osext.Executable()
|
||||
} else {
|
||||
return o.TargetPath, nil
|
||||
}
|
||||
}
|
||||
|
||||
func (o *Options) applyPatch(patch io.Reader) ([]byte, error) {
|
||||
// open the file to patch
|
||||
old, err := os.Open(o.TargetPath)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
defer old.Close()
|
||||
|
||||
// apply the patch
|
||||
var applied bytes.Buffer
|
||||
if err = o.Patcher.Patch(old, &applied, patch); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return applied.Bytes(), nil
|
||||
}
|
||||
|
||||
func (o *Options) verifyChecksum(updated []byte) error {
|
||||
checksum, err := checksumFor(o.Hash, updated)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
if !bytes.Equal(o.Checksum, checksum) {
|
||||
return fmt.Errorf("Updated file has wrong checksum. Expected: %x, got: %x", o.Checksum, checksum)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (o *Options) verifySignature(updated []byte) error {
|
||||
checksum, err := checksumFor(o.Hash, updated)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return o.Verifier.VerifySignature(checksum, o.Signature, o.Hash, o.PublicKey)
|
||||
}
|
||||
|
||||
func checksumFor(h crypto.Hash, payload []byte) ([]byte, error) {
|
||||
if !h.Available() {
|
||||
return nil, errors.New("requested hash function not available")
|
||||
}
|
||||
hash := h.New()
|
||||
hash.Write(payload) // guaranteed not to error
|
||||
return hash.Sum([]byte{}), nil
|
||||
}
|
|
@ -1,172 +0,0 @@
|
|||
/*
|
||||
Package update provides functionality to implement secure, self-updating Go programs (or other single-file targets).
|
||||
|
||||
For complete updating solutions please see Equinox (https://equinox.io) and go-tuf (https://github.com/flynn/go-tuf).
|
||||
|
||||
Basic Example
|
||||
|
||||
This example shows how to update a program remotely from a URL.
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"net/http"
|
||||
|
||||
"github.com/inconshreveable/go-update"
|
||||
)
|
||||
|
||||
func doUpdate(url string) error {
|
||||
// request the new file
|
||||
resp, err := http.Get(url)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
err := update.Apply(resp.Body, update.Options{})
|
||||
if err != nil {
|
||||
if rerr := update.RollbackError(err); rerr != nil {
|
||||
fmt.Println("Failed to rollback from bad update: %v", rerr)
|
||||
}
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
|
||||
Binary Patching
|
||||
|
||||
Go binaries can often be large. It can be advantageous to only ship a binary patch to a client
|
||||
instead of the complete program text of a new version.
|
||||
|
||||
This example shows how to update a program with a bsdiff binary patch. Other patch formats
|
||||
may be applied by implementing the Patcher interface.
|
||||
|
||||
import (
|
||||
"encoding/hex"
|
||||
"io"
|
||||
|
||||
"github.com/inconshreveable/go-update"
|
||||
)
|
||||
|
||||
func updateWithPatch(patch io.Reader) error {
|
||||
err := update.Apply(patch, update.Options{
|
||||
Patcher: update.NewBSDiffPatcher()
|
||||
})
|
||||
if err != nil {
|
||||
// error handling
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
Checksum Verification
|
||||
|
||||
Updating executable code on a computer can be a dangerous operation unless you
|
||||
take the appropriate steps to guarantee the authenticity of the new code. While
|
||||
checksum verification is important, it should always be combined with signature
|
||||
verification (next section) to guarantee that the code came from a trusted party.
|
||||
|
||||
go-update validates SHA256 checksums by default, but this is pluggable via the Hash
|
||||
property on the Options struct.
|
||||
|
||||
This example shows how to guarantee that the newly-updated binary is verified to
|
||||
have an appropriate checksum (that was otherwise retrived via a secure channel)
|
||||
specified as a hex string.
|
||||
|
||||
import (
|
||||
"crypto"
|
||||
_ "crypto/sha256"
|
||||
"encoding/hex"
|
||||
"io"
|
||||
|
||||
"github.com/inconshreveable/go-update"
|
||||
)
|
||||
|
||||
func updateWithChecksum(binary io.Reader, hexChecksum string) error {
|
||||
checksum, err := hex.DecodeString(hexChecksum)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
err = update.Apply(binary, update.Options{
|
||||
Hash: crypto.SHA256, // this is the default, you don't need to specify it
|
||||
Checksum: checksum,
|
||||
})
|
||||
if err != nil {
|
||||
// error handling
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
Cryptographic Signature Verification
|
||||
|
||||
Cryptographic verification of new code from an update is an extremely important way to guarantee the
|
||||
security and integrity of your updates.
|
||||
|
||||
Verification is performed by validating the signature of a hash of the new file. This
|
||||
means nothing changes if you apply your update with a patch.
|
||||
|
||||
This example shows how to add signature verification to your updates. To make all of this work
|
||||
an application distributor must first create a public/private key pair and embed the public key
|
||||
into their application. When they issue a new release, the issuer must sign the new executable file
|
||||
with the private key and distribute the signature along with the update.
|
||||
|
||||
import (
|
||||
"crypto"
|
||||
_ "crypto/sha256"
|
||||
"encoding/hex"
|
||||
"io"
|
||||
|
||||
"github.com/inconshreveable/go-update"
|
||||
)
|
||||
|
||||
var publicKey = []byte(`
|
||||
-----BEGIN PUBLIC KEY-----
|
||||
MFYwEAYHKoZIzj0CAQYFK4EEAAoDQgAEtrVmBxQvheRArXjg2vG1xIprWGuCyESx
|
||||
MMY8pjmjepSy2kuz+nl9aFLqmr+rDNdYvEBqQaZrYMc6k29gjvoQnQ==
|
||||
-----END PUBLIC KEY-----
|
||||
`)
|
||||
|
||||
func verifiedUpdate(binary io.Reader, hexChecksum, hexSignature string) {
|
||||
checksum, err := hex.DecodeString(hexChecksum)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
signature, err := hex.DecodeString(hexSignature)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
opts := update.Options{
|
||||
Checksum: checksum,
|
||||
Signature: signature,
|
||||
Hash: crypto.SHA256, // this is the default, you don't need to specify it
|
||||
Verifier: update.NewECDSAVerifier(), // this is the default, you don't need to specify it
|
||||
}
|
||||
err = opts.SetPublicKeyPEM(publicKey)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
err = update.Apply(binary, opts)
|
||||
if err != nil {
|
||||
// error handling
|
||||
}
|
||||
return err
|
||||
}
|
||||
|
||||
|
||||
Building Single-File Go Binaries
|
||||
|
||||
In order to update a Go application with go-update, you must distributed it as a single executable.
|
||||
This is often easy, but some applications require static assets (like HTML and CSS asset files or TLS certificates).
|
||||
In order to update applications like these, you'll want to make sure to embed those asset files into
|
||||
the distributed binary with a tool like go-bindata (my favorite): https://github.com/jteeuwen/go-bindata
|
||||
|
||||
Non-Goals
|
||||
|
||||
Mechanisms and protocols for determining whether an update should be applied and, if so, which one are
|
||||
out of scope for this package. Please consult go-tuf (https://github.com/flynn/go-tuf) or Equinox (https://equinox.io)
|
||||
for more complete solutions.
|
||||
|
||||
go-update only works for self-updating applications that are distributed as a single binary, i.e.
|
||||
applications that do not have additional assets or dependency files.
|
||||
Updating application that are distributed as mutliple on-disk files is out of scope, although this
|
||||
may change in future versions of this library.
|
||||
|
||||
*/
|
||||
package update
|
|
@ -1,7 +0,0 @@
|
|||
// +build !windows
|
||||
|
||||
package update
|
||||
|
||||
func hideFile(path string) error {
|
||||
return nil
|
||||
}
|
|
@ -1,19 +0,0 @@
|
|||
package update
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
func hideFile(path string) error {
|
||||
kernel32 := syscall.NewLazyDLL("kernel32.dll")
|
||||
setFileAttributes := kernel32.NewProc("SetFileAttributesW")
|
||||
|
||||
r1, _, err := setFileAttributes.Call(uintptr(unsafe.Pointer(syscall.StringToUTF16Ptr(path))), 2)
|
||||
|
||||
if r1 == 0 {
|
||||
return err
|
||||
} else {
|
||||
return nil
|
||||
}
|
||||
}
|
22
vendor/github.com/equinox-io/equinox/internal/go-update/internal/binarydist/License
generated
vendored
22
vendor/github.com/equinox-io/equinox/internal/go-update/internal/binarydist/License
generated
vendored
|
@ -1,22 +0,0 @@
|
|||
Copyright 2012 Keith Rarick
|
||||
|
||||
Permission is hereby granted, free of charge, to any person
|
||||
obtaining a copy of this software and associated documentation
|
||||
files (the "Software"), to deal in the Software without
|
||||
restriction, including without limitation the rights to use,
|
||||
copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the
|
||||
Software is furnished to do so, subject to the following
|
||||
conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be
|
||||
included in all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||||
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
|
||||
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||||
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
|
||||
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
||||
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
||||
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||||
OTHER DEALINGS IN THE SOFTWARE.
|
|
@ -1,7 +0,0 @@
|
|||
# binarydist
|
||||
|
||||
Package binarydist implements binary diff and patch as described on
|
||||
<http://www.daemonology.net/bsdiff/>. It reads and writes files
|
||||
compatible with the tools there.
|
||||
|
||||
Documentation at <http://go.pkgdoc.org/github.com/kr/binarydist>.
|
40
vendor/github.com/equinox-io/equinox/internal/go-update/internal/binarydist/bzip2.go
generated
vendored
40
vendor/github.com/equinox-io/equinox/internal/go-update/internal/binarydist/bzip2.go
generated
vendored
|
@ -1,40 +0,0 @@
|
|||
package binarydist
|
||||
|
||||
import (
|
||||
"io"
|
||||
"os/exec"
|
||||
)
|
||||
|
||||
type bzip2Writer struct {
|
||||
c *exec.Cmd
|
||||
w io.WriteCloser
|
||||
}
|
||||
|
||||
func (w bzip2Writer) Write(b []byte) (int, error) {
|
||||
return w.w.Write(b)
|
||||
}
|
||||
|
||||
func (w bzip2Writer) Close() error {
|
||||
if err := w.w.Close(); err != nil {
|
||||
return err
|
||||
}
|
||||
return w.c.Wait()
|
||||
}
|
||||
|
||||
// Package compress/bzip2 implements only decompression,
|
||||
// so we'll fake it by running bzip2 in another process.
|
||||
func newBzip2Writer(w io.Writer) (wc io.WriteCloser, err error) {
|
||||
var bw bzip2Writer
|
||||
bw.c = exec.Command("bzip2", "-c")
|
||||
bw.c.Stdout = w
|
||||
|
||||
if bw.w, err = bw.c.StdinPipe(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
if err = bw.c.Start(); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return bw, nil
|
||||
}
|
408
vendor/github.com/equinox-io/equinox/internal/go-update/internal/binarydist/diff.go
generated
vendored
408
vendor/github.com/equinox-io/equinox/internal/go-update/internal/binarydist/diff.go
generated
vendored
|
@ -1,408 +0,0 @@
|
|||
package binarydist
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"encoding/binary"
|
||||
"io"
|
||||
"io/ioutil"
|
||||
)
|
||||
|
||||
func swap(a []int, i, j int) { a[i], a[j] = a[j], a[i] }
|
||||
|
||||
func split(I, V []int, start, length, h int) {
|
||||
var i, j, k, x, jj, kk int
|
||||
|
||||
if length < 16 {
|
||||
for k = start; k < start+length; k += j {
|
||||
j = 1
|
||||
x = V[I[k]+h]
|
||||
for i = 1; k+i < start+length; i++ {
|
||||
if V[I[k+i]+h] < x {
|
||||
x = V[I[k+i]+h]
|
||||
j = 0
|
||||
}
|
||||
if V[I[k+i]+h] == x {
|
||||
swap(I, k+i, k+j)
|
||||
j++
|
||||
}
|
||||
}
|
||||
for i = 0; i < j; i++ {
|
||||
V[I[k+i]] = k + j - 1
|
||||
}
|
||||
if j == 1 {
|
||||
I[k] = -1
|
||||
}
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
x = V[I[start+length/2]+h]
|
||||
jj = 0
|
||||
kk = 0
|
||||
for i = start; i < start+length; i++ {
|
||||
if V[I[i]+h] < x {
|
||||
jj++
|
||||
}
|
||||
if V[I[i]+h] == x {
|
||||
kk++
|
||||
}
|
||||
}
|
||||
jj += start
|
||||
kk += jj
|
||||
|
||||
i = start
|
||||
j = 0
|
||||
k = 0
|
||||
for i < jj {
|
||||
if V[I[i]+h] < x {
|
||||
i++
|
||||
} else if V[I[i]+h] == x {
|
||||
swap(I, i, jj+j)
|
||||
j++
|
||||
} else {
|
||||
swap(I, i, kk+k)
|
||||
k++
|
||||
}
|
||||
}
|
||||
|
||||
for jj+j < kk {
|
||||
if V[I[jj+j]+h] == x {
|
||||
j++
|
||||
} else {
|
||||
swap(I, jj+j, kk+k)
|
||||
k++
|
||||
}
|
||||
}
|
||||
|
||||
if jj > start {
|
||||
split(I, V, start, jj-start, h)
|
||||
}
|
||||
|
||||
for i = 0; i < kk-jj; i++ {
|
||||
V[I[jj+i]] = kk - 1
|
||||
}
|
||||
if jj == kk-1 {
|
||||
I[jj] = -1
|
||||
}
|
||||
|
||||
if start+length > kk {
|
||||
split(I, V, kk, start+length-kk, h)
|
||||
}
|
||||
}
|
||||
|
||||
func qsufsort(obuf []byte) []int {
|
||||
var buckets [256]int
|
||||
var i, h int
|
||||
I := make([]int, len(obuf)+1)
|
||||
V := make([]int, len(obuf)+1)
|
||||
|
||||
for _, c := range obuf {
|
||||
buckets[c]++
|
||||
}
|
||||
for i = 1; i < 256; i++ {
|
||||
buckets[i] += buckets[i-1]
|
||||
}
|
||||
copy(buckets[1:], buckets[:])
|
||||
buckets[0] = 0
|
||||
|
||||
for i, c := range obuf {
|
||||
buckets[c]++
|
||||
I[buckets[c]] = i
|
||||
}
|
||||
|
||||
I[0] = len(obuf)
|
||||
for i, c := range obuf {
|
||||
V[i] = buckets[c]
|
||||
}
|
||||
|
||||
V[len(obuf)] = 0
|
||||
for i = 1; i < 256; i++ {
|
||||
if buckets[i] == buckets[i-1]+1 {
|
||||
I[buckets[i]] = -1
|
||||
}
|
||||
}
|
||||
I[0] = -1
|
||||
|
||||
for h = 1; I[0] != -(len(obuf) + 1); h += h {
|
||||
var n int
|
||||
for i = 0; i < len(obuf)+1; {
|
||||
if I[i] < 0 {
|
||||
n -= I[i]
|
||||
i -= I[i]
|
||||
} else {
|
||||
if n != 0 {
|
||||
I[i-n] = -n
|
||||
}
|
||||
n = V[I[i]] + 1 - i
|
||||
split(I, V, i, n, h)
|
||||
i += n
|
||||
n = 0
|
||||
}
|
||||
}
|
||||
if n != 0 {
|
||||
I[i-n] = -n
|
||||
}
|
||||
}
|
||||
|
||||
for i = 0; i < len(obuf)+1; i++ {
|
||||
I[V[i]] = i
|
||||
}
|
||||
return I
|
||||
}
|
||||
|
||||
func matchlen(a, b []byte) (i int) {
|
||||
for i < len(a) && i < len(b) && a[i] == b[i] {
|
||||
i++
|
||||
}
|
||||
return i
|
||||
}
|
||||
|
||||
func search(I []int, obuf, nbuf []byte, st, en int) (pos, n int) {
|
||||
if en-st < 2 {
|
||||
x := matchlen(obuf[I[st]:], nbuf)
|
||||
y := matchlen(obuf[I[en]:], nbuf)
|
||||
|
||||
if x > y {
|
||||
return I[st], x
|
||||
} else {
|
||||
return I[en], y
|
||||
}
|
||||
}
|
||||
|
||||
x := st + (en-st)/2
|
||||
if bytes.Compare(obuf[I[x]:], nbuf) < 0 {
|
||||
return search(I, obuf, nbuf, x, en)
|
||||
} else {
|
||||
return search(I, obuf, nbuf, st, x)
|
||||
}
|
||||
panic("unreached")
|
||||
}
|
||||
|
||||
// Diff computes the difference between old and new, according to the bsdiff
|
||||
// algorithm, and writes the result to patch.
|
||||
func Diff(old, new io.Reader, patch io.Writer) error {
|
||||
obuf, err := ioutil.ReadAll(old)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
nbuf, err := ioutil.ReadAll(new)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
pbuf, err := diffBytes(obuf, nbuf)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
_, err = patch.Write(pbuf)
|
||||
return err
|
||||
}
|
||||
|
||||
func diffBytes(obuf, nbuf []byte) ([]byte, error) {
|
||||
var patch seekBuffer
|
||||
err := diff(obuf, nbuf, &patch)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return patch.buf, nil
|
||||
}
|
||||
|
||||
func diff(obuf, nbuf []byte, patch io.WriteSeeker) error {
|
||||
var lenf int
|
||||
I := qsufsort(obuf)
|
||||
db := make([]byte, len(nbuf))
|
||||
eb := make([]byte, len(nbuf))
|
||||
var dblen, eblen int
|
||||
|
||||
var hdr header
|
||||
hdr.Magic = magic
|
||||
hdr.NewSize = int64(len(nbuf))
|
||||
err := binary.Write(patch, signMagLittleEndian{}, &hdr)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Compute the differences, writing ctrl as we go
|
||||
pfbz2, err := newBzip2Writer(patch)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
var scan, pos, length int
|
||||
var lastscan, lastpos, lastoffset int
|
||||
for scan < len(nbuf) {
|
||||
var oldscore int
|
||||
scan += length
|
||||
for scsc := scan; scan < len(nbuf); scan++ {
|
||||
pos, length = search(I, obuf, nbuf[scan:], 0, len(obuf))
|
||||
|
||||
for ; scsc < scan+length; scsc++ {
|
||||
if scsc+lastoffset < len(obuf) &&
|
||||
obuf[scsc+lastoffset] == nbuf[scsc] {
|
||||
oldscore++
|
||||
}
|
||||
}
|
||||
|
||||
if (length == oldscore && length != 0) || length > oldscore+8 {
|
||||
break
|
||||
}
|
||||
|
||||
if scan+lastoffset < len(obuf) && obuf[scan+lastoffset] == nbuf[scan] {
|
||||
oldscore--
|
||||
}
|
||||
}
|
||||
|
||||
if length != oldscore || scan == len(nbuf) {
|
||||
var s, Sf int
|
||||
lenf = 0
|
||||
for i := 0; lastscan+i < scan && lastpos+i < len(obuf); {
|
||||
if obuf[lastpos+i] == nbuf[lastscan+i] {
|
||||
s++
|
||||
}
|
||||
i++
|
||||
if s*2-i > Sf*2-lenf {
|
||||
Sf = s
|
||||
lenf = i
|
||||
}
|
||||
}
|
||||
|
||||
lenb := 0
|
||||
if scan < len(nbuf) {
|
||||
var s, Sb int
|
||||
for i := 1; (scan >= lastscan+i) && (pos >= i); i++ {
|
||||
if obuf[pos-i] == nbuf[scan-i] {
|
||||
s++
|
||||
}
|
||||
if s*2-i > Sb*2-lenb {
|
||||
Sb = s
|
||||
lenb = i
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if lastscan+lenf > scan-lenb {
|
||||
overlap := (lastscan + lenf) - (scan - lenb)
|
||||
s := 0
|
||||
Ss := 0
|
||||
lens := 0
|
||||
for i := 0; i < overlap; i++ {
|
||||
if nbuf[lastscan+lenf-overlap+i] == obuf[lastpos+lenf-overlap+i] {
|
||||
s++
|
||||
}
|
||||
if nbuf[scan-lenb+i] == obuf[pos-lenb+i] {
|
||||
s--
|
||||
}
|
||||
if s > Ss {
|
||||
Ss = s
|
||||
lens = i + 1
|
||||
}
|
||||
}
|
||||
|
||||
lenf += lens - overlap
|
||||
lenb -= lens
|
||||
}
|
||||
|
||||
for i := 0; i < lenf; i++ {
|
||||
db[dblen+i] = nbuf[lastscan+i] - obuf[lastpos+i]
|
||||
}
|
||||
for i := 0; i < (scan-lenb)-(lastscan+lenf); i++ {
|
||||
eb[eblen+i] = nbuf[lastscan+lenf+i]
|
||||
}
|
||||
|
||||
dblen += lenf
|
||||
eblen += (scan - lenb) - (lastscan + lenf)
|
||||
|
||||
err = binary.Write(pfbz2, signMagLittleEndian{}, int64(lenf))
|
||||
if err != nil {
|
||||
pfbz2.Close()
|
||||
return err
|
||||
}
|
||||
|
||||
val := (scan - lenb) - (lastscan + lenf)
|
||||
err = binary.Write(pfbz2, signMagLittleEndian{}, int64(val))
|
||||
if err != nil {
|
||||
pfbz2.Close()
|
||||
return err
|
||||
}
|
||||
|
||||
val = (pos - lenb) - (lastpos + lenf)
|
||||
err = binary.Write(pfbz2, signMagLittleEndian{}, int64(val))
|
||||
if err != nil {
|
||||
pfbz2.Close()
|
||||
return err
|
||||
}
|
||||
|
||||
lastscan = scan - lenb
|
||||
lastpos = pos - lenb
|
||||
lastoffset = pos - scan
|
||||
}
|
||||
}
|
||||
err = pfbz2.Close()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Compute size of compressed ctrl data
|
||||
l64, err := patch.Seek(0, 1)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
hdr.CtrlLen = int64(l64 - 32)
|
||||
|
||||
// Write compressed diff data
|
||||
pfbz2, err = newBzip2Writer(patch)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
n, err := pfbz2.Write(db[:dblen])
|
||||
if err != nil {
|
||||
pfbz2.Close()
|
||||
return err
|
||||
}
|
||||
if n != dblen {
|
||||
pfbz2.Close()
|
||||
return io.ErrShortWrite
|
||||
}
|
||||
err = pfbz2.Close()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Compute size of compressed diff data
|
||||
n64, err := patch.Seek(0, 1)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
hdr.DiffLen = n64 - l64
|
||||
|
||||
// Write compressed extra data
|
||||
pfbz2, err = newBzip2Writer(patch)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
n, err = pfbz2.Write(eb[:eblen])
|
||||
if err != nil {
|
||||
pfbz2.Close()
|
||||
return err
|
||||
}
|
||||
if n != eblen {
|
||||
pfbz2.Close()
|
||||
return io.ErrShortWrite
|
||||
}
|
||||
err = pfbz2.Close()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Seek to the beginning, write the header, and close the file
|
||||
_, err = patch.Seek(0, 0)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
err = binary.Write(patch, signMagLittleEndian{}, &hdr)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
24
vendor/github.com/equinox-io/equinox/internal/go-update/internal/binarydist/doc.go
generated
vendored
24
vendor/github.com/equinox-io/equinox/internal/go-update/internal/binarydist/doc.go
generated
vendored
|
@ -1,24 +0,0 @@
|
|||
// Package binarydist implements binary diff and patch as described on
|
||||
// http://www.daemonology.net/bsdiff/. It reads and writes files
|
||||
// compatible with the tools there.
|
||||
package binarydist
|
||||
|
||||
var magic = [8]byte{'B', 'S', 'D', 'I', 'F', 'F', '4', '0'}
|
||||
|
||||
// File format:
|
||||
// 0 8 "BSDIFF40"
|
||||
// 8 8 X
|
||||
// 16 8 Y
|
||||
// 24 8 sizeof(newfile)
|
||||
// 32 X bzip2(control block)
|
||||
// 32+X Y bzip2(diff block)
|
||||
// 32+X+Y ??? bzip2(extra block)
|
||||
// with control block a set of triples (x,y,z) meaning "add x bytes
|
||||
// from oldfile to x bytes from the diff block; copy y bytes from the
|
||||
// extra block; seek forwards in oldfile by z bytes".
|
||||
type header struct {
|
||||
Magic [8]byte
|
||||
CtrlLen int64
|
||||
DiffLen int64
|
||||
NewSize int64
|
||||
}
|
53
vendor/github.com/equinox-io/equinox/internal/go-update/internal/binarydist/encoding.go
generated
vendored
53
vendor/github.com/equinox-io/equinox/internal/go-update/internal/binarydist/encoding.go
generated
vendored
|
@ -1,53 +0,0 @@
|
|||
package binarydist
|
||||
|
||||
// SignMagLittleEndian is the numeric encoding used by the bsdiff tools.
|
||||
// It implements binary.ByteOrder using a sign-magnitude format
|
||||
// and little-endian byte order. Only methods Uint64 and String
|
||||
// have been written; the rest panic.
|
||||
type signMagLittleEndian struct{}
|
||||
|
||||
func (signMagLittleEndian) Uint16(b []byte) uint16 { panic("unimplemented") }
|
||||
|
||||
func (signMagLittleEndian) PutUint16(b []byte, v uint16) { panic("unimplemented") }
|
||||
|
||||
func (signMagLittleEndian) Uint32(b []byte) uint32 { panic("unimplemented") }
|
||||
|
||||
func (signMagLittleEndian) PutUint32(b []byte, v uint32) { panic("unimplemented") }
|
||||
|
||||
func (signMagLittleEndian) Uint64(b []byte) uint64 {
|
||||
y := int64(b[0]) |
|
||||
int64(b[1])<<8 |
|
||||
int64(b[2])<<16 |
|
||||
int64(b[3])<<24 |
|
||||
int64(b[4])<<32 |
|
||||
int64(b[5])<<40 |
|
||||
int64(b[6])<<48 |
|
||||
int64(b[7]&0x7f)<<56
|
||||
|
||||
if b[7]&0x80 != 0 {
|
||||
y = -y
|
||||
}
|
||||
return uint64(y)
|
||||
}
|
||||
|
||||
func (signMagLittleEndian) PutUint64(b []byte, v uint64) {
|
||||
x := int64(v)
|
||||
neg := x < 0
|
||||
if neg {
|
||||
x = -x
|
||||
}
|
||||
|
||||
b[0] = byte(x)
|
||||
b[1] = byte(x >> 8)
|
||||
b[2] = byte(x >> 16)
|
||||
b[3] = byte(x >> 24)
|
||||
b[4] = byte(x >> 32)
|
||||
b[5] = byte(x >> 40)
|
||||
b[6] = byte(x >> 48)
|
||||
b[7] = byte(x >> 56)
|
||||
if neg {
|
||||
b[7] |= 0x80
|
||||
}
|
||||
}
|
||||
|
||||
func (signMagLittleEndian) String() string { return "signMagLittleEndian" }
|
109
vendor/github.com/equinox-io/equinox/internal/go-update/internal/binarydist/patch.go
generated
vendored
109
vendor/github.com/equinox-io/equinox/internal/go-update/internal/binarydist/patch.go
generated
vendored
|
@ -1,109 +0,0 @@
|
|||
package binarydist
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"compress/bzip2"
|
||||
"encoding/binary"
|
||||
"errors"
|
||||
"io"
|
||||
"io/ioutil"
|
||||
)
|
||||
|
||||
var ErrCorrupt = errors.New("corrupt patch")
|
||||
|
||||
// Patch applies patch to old, according to the bspatch algorithm,
|
||||
// and writes the result to new.
|
||||
func Patch(old io.Reader, new io.Writer, patch io.Reader) error {
|
||||
var hdr header
|
||||
err := binary.Read(patch, signMagLittleEndian{}, &hdr)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
if hdr.Magic != magic {
|
||||
return ErrCorrupt
|
||||
}
|
||||
if hdr.CtrlLen < 0 || hdr.DiffLen < 0 || hdr.NewSize < 0 {
|
||||
return ErrCorrupt
|
||||
}
|
||||
|
||||
ctrlbuf := make([]byte, hdr.CtrlLen)
|
||||
_, err = io.ReadFull(patch, ctrlbuf)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
cpfbz2 := bzip2.NewReader(bytes.NewReader(ctrlbuf))
|
||||
|
||||
diffbuf := make([]byte, hdr.DiffLen)
|
||||
_, err = io.ReadFull(patch, diffbuf)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
dpfbz2 := bzip2.NewReader(bytes.NewReader(diffbuf))
|
||||
|
||||
// The entire rest of the file is the extra block.
|
||||
epfbz2 := bzip2.NewReader(patch)
|
||||
|
||||
obuf, err := ioutil.ReadAll(old)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
nbuf := make([]byte, hdr.NewSize)
|
||||
|
||||
var oldpos, newpos int64
|
||||
for newpos < hdr.NewSize {
|
||||
var ctrl struct{ Add, Copy, Seek int64 }
|
||||
err = binary.Read(cpfbz2, signMagLittleEndian{}, &ctrl)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Sanity-check
|
||||
if newpos+ctrl.Add > hdr.NewSize {
|
||||
return ErrCorrupt
|
||||
}
|
||||
|
||||
// Read diff string
|
||||
_, err = io.ReadFull(dpfbz2, nbuf[newpos:newpos+ctrl.Add])
|
||||
if err != nil {
|
||||
return ErrCorrupt
|
||||
}
|
||||
|
||||
// Add old data to diff string
|
||||
for i := int64(0); i < ctrl.Add; i++ {
|
||||
if oldpos+i >= 0 && oldpos+i < int64(len(obuf)) {
|
||||
nbuf[newpos+i] += obuf[oldpos+i]
|
||||
}
|
||||
}
|
||||
|
||||
// Adjust pointers
|
||||
newpos += ctrl.Add
|
||||
oldpos += ctrl.Add
|
||||
|
||||
// Sanity-check
|
||||
if newpos+ctrl.Copy > hdr.NewSize {
|
||||
return ErrCorrupt
|
||||
}
|
||||
|
||||
// Read extra string
|
||||
_, err = io.ReadFull(epfbz2, nbuf[newpos:newpos+ctrl.Copy])
|
||||
if err != nil {
|
||||
return ErrCorrupt
|
||||
}
|
||||
|
||||
// Adjust pointers
|
||||
newpos += ctrl.Copy
|
||||
oldpos += ctrl.Seek
|
||||
}
|
||||
|
||||
// Write the new file
|
||||
for len(nbuf) > 0 {
|
||||
n, err := new.Write(nbuf)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
nbuf = nbuf[n:]
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
43
vendor/github.com/equinox-io/equinox/internal/go-update/internal/binarydist/seek.go
generated
vendored
43
vendor/github.com/equinox-io/equinox/internal/go-update/internal/binarydist/seek.go
generated
vendored
|
@ -1,43 +0,0 @@
|
|||
package binarydist
|
||||
|
||||
import (
|
||||
"errors"
|
||||
)
|
||||
|
||||
type seekBuffer struct {
|
||||
buf []byte
|
||||
pos int
|
||||
}
|
||||
|
||||
func (b *seekBuffer) Write(p []byte) (n int, err error) {
|
||||
n = copy(b.buf[b.pos:], p)
|
||||
if n == len(p) {
|
||||
b.pos += n
|
||||
return n, nil
|
||||
}
|
||||
b.buf = append(b.buf, p[n:]...)
|
||||
b.pos += len(p)
|
||||
return len(p), nil
|
||||
}
|
||||
|
||||
func (b *seekBuffer) Seek(offset int64, whence int) (ret int64, err error) {
|
||||
var abs int64
|
||||
switch whence {
|
||||
case 0:
|
||||
abs = offset
|
||||
case 1:
|
||||
abs = int64(b.pos) + offset
|
||||
case 2:
|
||||
abs = int64(len(b.buf)) + offset
|
||||
default:
|
||||
return 0, errors.New("binarydist: invalid whence")
|
||||
}
|
||||
if abs < 0 {
|
||||
return 0, errors.New("binarydist: negative position")
|
||||
}
|
||||
if abs >= 1<<31 {
|
||||
return 0, errors.New("binarydist: position out of range")
|
||||
}
|
||||
b.pos = int(abs)
|
||||
return abs, nil
|
||||
}
|
27
vendor/github.com/equinox-io/equinox/internal/go-update/internal/osext/LICENSE
generated
vendored
27
vendor/github.com/equinox-io/equinox/internal/go-update/internal/osext/LICENSE
generated
vendored
|
@ -1,27 +0,0 @@
|
|||
Copyright (c) 2012 The Go Authors. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following disclaimer
|
||||
in the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
* Neither the name of Google Inc. nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
16
vendor/github.com/equinox-io/equinox/internal/go-update/internal/osext/README.md
generated
vendored
16
vendor/github.com/equinox-io/equinox/internal/go-update/internal/osext/README.md
generated
vendored
|
@ -1,16 +0,0 @@
|
|||
### Extensions to the "os" package.
|
||||
|
||||
## Find the current Executable and ExecutableFolder.
|
||||
|
||||
There is sometimes utility in finding the current executable file
|
||||
that is running. This can be used for upgrading the current executable
|
||||
or finding resources located relative to the executable file. Both
|
||||
working directory and the os.Args[0] value are arbitrary and cannot
|
||||
be relied on; os.Args[0] can be "faked".
|
||||
|
||||
Multi-platform and supports:
|
||||
* Linux
|
||||
* OS X
|
||||
* Windows
|
||||
* Plan 9
|
||||
* BSDs.
|
27
vendor/github.com/equinox-io/equinox/internal/go-update/internal/osext/osext.go
generated
vendored
27
vendor/github.com/equinox-io/equinox/internal/go-update/internal/osext/osext.go
generated
vendored
|
@ -1,27 +0,0 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Extensions to the standard "os" package.
|
||||
package osext
|
||||
|
||||
import "path/filepath"
|
||||
|
||||
// Executable returns an absolute path that can be used to
|
||||
// re-invoke the current program.
|
||||
// It may not be valid after the current program exits.
|
||||
func Executable() (string, error) {
|
||||
p, err := executable()
|
||||
return filepath.Clean(p), err
|
||||
}
|
||||
|
||||
// Returns same path as Executable, returns just the folder
|
||||
// path. Excludes the executable name and any trailing slash.
|
||||
func ExecutableFolder() (string, error) {
|
||||
p, err := Executable()
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return filepath.Dir(p), nil
|
||||
}
|
20
vendor/github.com/equinox-io/equinox/internal/go-update/internal/osext/osext_plan9.go
generated
vendored
20
vendor/github.com/equinox-io/equinox/internal/go-update/internal/osext/osext_plan9.go
generated
vendored
|
@ -1,20 +0,0 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package osext
|
||||
|
||||
import (
|
||||
"os"
|
||||
"strconv"
|
||||
"syscall"
|
||||
)
|
||||
|
||||
func executable() (string, error) {
|
||||
f, err := os.Open("/proc/" + strconv.Itoa(os.Getpid()) + "/text")
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
defer f.Close()
|
||||
return syscall.Fd2path(int(f.Fd()))
|
||||
}
|
36
vendor/github.com/equinox-io/equinox/internal/go-update/internal/osext/osext_procfs.go
generated
vendored
36
vendor/github.com/equinox-io/equinox/internal/go-update/internal/osext/osext_procfs.go
generated
vendored
|
@ -1,36 +0,0 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build linux netbsd openbsd solaris dragonfly
|
||||
|
||||
package osext
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"os"
|
||||
"runtime"
|
||||
"strings"
|
||||
)
|
||||
|
||||
func executable() (string, error) {
|
||||
switch runtime.GOOS {
|
||||
case "linux":
|
||||
const deletedTag = " (deleted)"
|
||||
execpath, err := os.Readlink("/proc/self/exe")
|
||||
if err != nil {
|
||||
return execpath, err
|
||||
}
|
||||
execpath = strings.TrimSuffix(execpath, deletedTag)
|
||||
execpath = strings.TrimPrefix(execpath, deletedTag)
|
||||
return execpath, nil
|
||||
case "netbsd":
|
||||
return os.Readlink("/proc/curproc/exe")
|
||||
case "openbsd", "dragonfly":
|
||||
return os.Readlink("/proc/curproc/file")
|
||||
case "solaris":
|
||||
return os.Readlink(fmt.Sprintf("/proc/%d/path/a.out", os.Getpid()))
|
||||
}
|
||||
return "", errors.New("ExecPath not implemented for " + runtime.GOOS)
|
||||
}
|
79
vendor/github.com/equinox-io/equinox/internal/go-update/internal/osext/osext_sysctl.go
generated
vendored
79
vendor/github.com/equinox-io/equinox/internal/go-update/internal/osext/osext_sysctl.go
generated
vendored
|
@ -1,79 +0,0 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build darwin freebsd
|
||||
|
||||
package osext
|
||||
|
||||
import (
|
||||
"os"
|
||||
"path/filepath"
|
||||
"runtime"
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
var initCwd, initCwdErr = os.Getwd()
|
||||
|
||||
func executable() (string, error) {
|
||||
var mib [4]int32
|
||||
switch runtime.GOOS {
|
||||
case "freebsd":
|
||||
mib = [4]int32{1 /* CTL_KERN */, 14 /* KERN_PROC */, 12 /* KERN_PROC_PATHNAME */, -1}
|
||||
case "darwin":
|
||||
mib = [4]int32{1 /* CTL_KERN */, 38 /* KERN_PROCARGS */, int32(os.Getpid()), -1}
|
||||
}
|
||||
|
||||
n := uintptr(0)
|
||||
// Get length.
|
||||
_, _, errNum := syscall.Syscall6(syscall.SYS___SYSCTL, uintptr(unsafe.Pointer(&mib[0])), 4, 0, uintptr(unsafe.Pointer(&n)), 0, 0)
|
||||
if errNum != 0 {
|
||||
return "", errNum
|
||||
}
|
||||
if n == 0 { // This shouldn't happen.
|
||||
return "", nil
|
||||
}
|
||||
buf := make([]byte, n)
|
||||
_, _, errNum = syscall.Syscall6(syscall.SYS___SYSCTL, uintptr(unsafe.Pointer(&mib[0])), 4, uintptr(unsafe.Pointer(&buf[0])), uintptr(unsafe.Pointer(&n)), 0, 0)
|
||||
if errNum != 0 {
|
||||
return "", errNum
|
||||
}
|
||||
if n == 0 { // This shouldn't happen.
|
||||
return "", nil
|
||||
}
|
||||
for i, v := range buf {
|
||||
if v == 0 {
|
||||
buf = buf[:i]
|
||||
break
|
||||
}
|
||||
}
|
||||
var err error
|
||||
execPath := string(buf)
|
||||
// execPath will not be empty due to above checks.
|
||||
// Try to get the absolute path if the execPath is not rooted.
|
||||
if execPath[0] != '/' {
|
||||
execPath, err = getAbs(execPath)
|
||||
if err != nil {
|
||||
return execPath, err
|
||||
}
|
||||
}
|
||||
// For darwin KERN_PROCARGS may return the path to a symlink rather than the
|
||||
// actual executable.
|
||||
if runtime.GOOS == "darwin" {
|
||||
if execPath, err = filepath.EvalSymlinks(execPath); err != nil {
|
||||
return execPath, err
|
||||
}
|
||||
}
|
||||
return execPath, nil
|
||||
}
|
||||
|
||||
func getAbs(execPath string) (string, error) {
|
||||
if initCwdErr != nil {
|
||||
return execPath, initCwdErr
|
||||
}
|
||||
// The execPath may begin with a "../" or a "./" so clean it first.
|
||||
// Join the two paths, trailing and starting slashes undetermined, so use
|
||||
// the generic Join function.
|
||||
return filepath.Join(initCwd, filepath.Clean(execPath)), nil
|
||||
}
|
34
vendor/github.com/equinox-io/equinox/internal/go-update/internal/osext/osext_windows.go
generated
vendored
34
vendor/github.com/equinox-io/equinox/internal/go-update/internal/osext/osext_windows.go
generated
vendored
|
@ -1,34 +0,0 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package osext
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
"unicode/utf16"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
var (
|
||||
kernel = syscall.MustLoadDLL("kernel32.dll")
|
||||
getModuleFileNameProc = kernel.MustFindProc("GetModuleFileNameW")
|
||||
)
|
||||
|
||||
// GetModuleFileName() with hModule = NULL
|
||||
func executable() (exePath string, err error) {
|
||||
return getModuleFileName()
|
||||
}
|
||||
|
||||
func getModuleFileName() (string, error) {
|
||||
var n uint32
|
||||
b := make([]uint16, syscall.MAX_PATH)
|
||||
size := uint32(len(b))
|
||||
|
||||
r0, _, e1 := getModuleFileNameProc.Call(0, uintptr(unsafe.Pointer(&b[0])), uintptr(size))
|
||||
n = uint32(r0)
|
||||
if n == 0 {
|
||||
return "", e1
|
||||
}
|
||||
return string(utf16.Decode(b[0:n])), nil
|
||||
}
|
|
@ -1,24 +0,0 @@
|
|||
package update
|
||||
|
||||
import (
|
||||
"io"
|
||||
|
||||
"github.com/equinox-io/equinox/internal/go-update/internal/binarydist"
|
||||
)
|
||||
|
||||
// Patcher defines an interface for applying binary patches to an old item to get an updated item.
|
||||
type Patcher interface {
|
||||
Patch(old io.Reader, new io.Writer, patch io.Reader) error
|
||||
}
|
||||
|
||||
type patchFn func(io.Reader, io.Writer, io.Reader) error
|
||||
|
||||
func (fn patchFn) Patch(old io.Reader, new io.Writer, patch io.Reader) error {
|
||||
return fn(old, new, patch)
|
||||
}
|
||||
|
||||
// NewBSDifferPatcher returns a new Patcher that applies binary patches using
|
||||
// the bsdiff algorithm. See http://www.daemonology.net/bsdiff/
|
||||
func NewBSDiffPatcher() Patcher {
|
||||
return patchFn(binarydist.Patch)
|
||||
}
|
|
@ -1,74 +0,0 @@
|
|||
package update
|
||||
|
||||
import (
|
||||
"crypto"
|
||||
"crypto/dsa"
|
||||
"crypto/ecdsa"
|
||||
"crypto/rsa"
|
||||
"encoding/asn1"
|
||||
"errors"
|
||||
"math/big"
|
||||
)
|
||||
|
||||
// Verifier defines an interface for verfiying an update's signature with a public key.
|
||||
type Verifier interface {
|
||||
VerifySignature(checksum, signature []byte, h crypto.Hash, publicKey crypto.PublicKey) error
|
||||
}
|
||||
|
||||
type verifyFn func([]byte, []byte, crypto.Hash, crypto.PublicKey) error
|
||||
|
||||
func (fn verifyFn) VerifySignature(checksum []byte, signature []byte, hash crypto.Hash, publicKey crypto.PublicKey) error {
|
||||
return fn(checksum, signature, hash, publicKey)
|
||||
}
|
||||
|
||||
// NewRSAVerifier returns a Verifier that uses the RSA algorithm to verify updates.
|
||||
func NewRSAVerifier() Verifier {
|
||||
return verifyFn(func(checksum, signature []byte, hash crypto.Hash, publicKey crypto.PublicKey) error {
|
||||
key, ok := publicKey.(*rsa.PublicKey)
|
||||
if !ok {
|
||||
return errors.New("not a valid RSA public key")
|
||||
}
|
||||
return rsa.VerifyPKCS1v15(key, hash, checksum, signature)
|
||||
})
|
||||
}
|
||||
|
||||
type rsDER struct {
|
||||
R *big.Int
|
||||
S *big.Int
|
||||
}
|
||||
|
||||
// NewECDSAVerifier returns a Verifier that uses the ECDSA algorithm to verify updates.
|
||||
func NewECDSAVerifier() Verifier {
|
||||
return verifyFn(func(checksum, signature []byte, hash crypto.Hash, publicKey crypto.PublicKey) error {
|
||||
key, ok := publicKey.(*ecdsa.PublicKey)
|
||||
if !ok {
|
||||
return errors.New("not a valid ECDSA public key")
|
||||
}
|
||||
var rs rsDER
|
||||
if _, err := asn1.Unmarshal(signature, &rs); err != nil {
|
||||
return err
|
||||
}
|
||||
if !ecdsa.Verify(key, checksum, rs.R, rs.S) {
|
||||
return errors.New("failed to verify ecsda signature")
|
||||
}
|
||||
return nil
|
||||
})
|
||||
}
|
||||
|
||||
// NewDSAVerifier returns a Verifier that uses the DSA algorithm to verify updates.
|
||||
func NewDSAVerifier() Verifier {
|
||||
return verifyFn(func(checksum, signature []byte, hash crypto.Hash, publicKey crypto.PublicKey) error {
|
||||
key, ok := publicKey.(*dsa.PublicKey)
|
||||
if !ok {
|
||||
return errors.New("not a valid DSA public key")
|
||||
}
|
||||
var rs rsDER
|
||||
if _, err := asn1.Unmarshal(signature, &rs); err != nil {
|
||||
return err
|
||||
}
|
||||
if !dsa.Verify(key, checksum, rs.R, rs.S) {
|
||||
return errors.New("failed to verify ecsda signature")
|
||||
}
|
||||
return nil
|
||||
})
|
||||
}
|
|
@ -1,27 +0,0 @@
|
|||
Copyright (c) 2012 The Go Authors. All rights reserved.
|
||||
|
||||
Redistribution and use in source and binary forms, with or without
|
||||
modification, are permitted provided that the following conditions are
|
||||
met:
|
||||
|
||||
* Redistributions of source code must retain the above copyright
|
||||
notice, this list of conditions and the following disclaimer.
|
||||
* Redistributions in binary form must reproduce the above
|
||||
copyright notice, this list of conditions and the following disclaimer
|
||||
in the documentation and/or other materials provided with the
|
||||
distribution.
|
||||
* Neither the name of Google Inc. nor the names of its
|
||||
contributors may be used to endorse or promote products derived from
|
||||
this software without specific prior written permission.
|
||||
|
||||
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
@ -1,16 +0,0 @@
|
|||
### Extensions to the "os" package.
|
||||
|
||||
## Find the current Executable and ExecutableFolder.
|
||||
|
||||
There is sometimes utility in finding the current executable file
|
||||
that is running. This can be used for upgrading the current executable
|
||||
or finding resources located relative to the executable file. Both
|
||||
working directory and the os.Args[0] value are arbitrary and cannot
|
||||
be relied on; os.Args[0] can be "faked".
|
||||
|
||||
Multi-platform and supports:
|
||||
* Linux
|
||||
* OS X
|
||||
* Windows
|
||||
* Plan 9
|
||||
* BSDs.
|
|
@ -1,27 +0,0 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Extensions to the standard "os" package.
|
||||
package osext
|
||||
|
||||
import "path/filepath"
|
||||
|
||||
// Executable returns an absolute path that can be used to
|
||||
// re-invoke the current program.
|
||||
// It may not be valid after the current program exits.
|
||||
func Executable() (string, error) {
|
||||
p, err := executable()
|
||||
return filepath.Clean(p), err
|
||||
}
|
||||
|
||||
// Returns same path as Executable, returns just the folder
|
||||
// path. Excludes the executable name and any trailing slash.
|
||||
func ExecutableFolder() (string, error) {
|
||||
p, err := Executable()
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return filepath.Dir(p), nil
|
||||
}
|
|
@ -1,20 +0,0 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package osext
|
||||
|
||||
import (
|
||||
"os"
|
||||
"strconv"
|
||||
"syscall"
|
||||
)
|
||||
|
||||
func executable() (string, error) {
|
||||
f, err := os.Open("/proc/" + strconv.Itoa(os.Getpid()) + "/text")
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
defer f.Close()
|
||||
return syscall.Fd2path(int(f.Fd()))
|
||||
}
|
|
@ -1,36 +0,0 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build linux netbsd openbsd solaris dragonfly
|
||||
|
||||
package osext
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"os"
|
||||
"runtime"
|
||||
"strings"
|
||||
)
|
||||
|
||||
func executable() (string, error) {
|
||||
switch runtime.GOOS {
|
||||
case "linux":
|
||||
const deletedTag = " (deleted)"
|
||||
execpath, err := os.Readlink("/proc/self/exe")
|
||||
if err != nil {
|
||||
return execpath, err
|
||||
}
|
||||
execpath = strings.TrimSuffix(execpath, deletedTag)
|
||||
execpath = strings.TrimPrefix(execpath, deletedTag)
|
||||
return execpath, nil
|
||||
case "netbsd":
|
||||
return os.Readlink("/proc/curproc/exe")
|
||||
case "openbsd", "dragonfly":
|
||||
return os.Readlink("/proc/curproc/file")
|
||||
case "solaris":
|
||||
return os.Readlink(fmt.Sprintf("/proc/%d/path/a.out", os.Getpid()))
|
||||
}
|
||||
return "", errors.New("ExecPath not implemented for " + runtime.GOOS)
|
||||
}
|
|
@ -1,79 +0,0 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// +build darwin freebsd
|
||||
|
||||
package osext
|
||||
|
||||
import (
|
||||
"os"
|
||||
"path/filepath"
|
||||
"runtime"
|
||||
"syscall"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
var initCwd, initCwdErr = os.Getwd()
|
||||
|
||||
func executable() (string, error) {
|
||||
var mib [4]int32
|
||||
switch runtime.GOOS {
|
||||
case "freebsd":
|
||||
mib = [4]int32{1 /* CTL_KERN */, 14 /* KERN_PROC */, 12 /* KERN_PROC_PATHNAME */, -1}
|
||||
case "darwin":
|
||||
mib = [4]int32{1 /* CTL_KERN */, 38 /* KERN_PROCARGS */, int32(os.Getpid()), -1}
|
||||
}
|
||||
|
||||
n := uintptr(0)
|
||||
// Get length.
|
||||
_, _, errNum := syscall.Syscall6(syscall.SYS___SYSCTL, uintptr(unsafe.Pointer(&mib[0])), 4, 0, uintptr(unsafe.Pointer(&n)), 0, 0)
|
||||
if errNum != 0 {
|
||||
return "", errNum
|
||||
}
|
||||
if n == 0 { // This shouldn't happen.
|
||||
return "", nil
|
||||
}
|
||||
buf := make([]byte, n)
|
||||
_, _, errNum = syscall.Syscall6(syscall.SYS___SYSCTL, uintptr(unsafe.Pointer(&mib[0])), 4, uintptr(unsafe.Pointer(&buf[0])), uintptr(unsafe.Pointer(&n)), 0, 0)
|
||||
if errNum != 0 {
|
||||
return "", errNum
|
||||
}
|
||||
if n == 0 { // This shouldn't happen.
|
||||
return "", nil
|
||||
}
|
||||
for i, v := range buf {
|
||||
if v == 0 {
|
||||
buf = buf[:i]
|
||||
break
|
||||
}
|
||||
}
|
||||
var err error
|
||||
execPath := string(buf)
|
||||
// execPath will not be empty due to above checks.
|
||||
// Try to get the absolute path if the execPath is not rooted.
|
||||
if execPath[0] != '/' {
|
||||
execPath, err = getAbs(execPath)
|
||||
if err != nil {
|
||||
return execPath, err
|
||||
}
|
||||
}
|
||||
// For darwin KERN_PROCARGS may return the path to a symlink rather than the
|
||||
// actual executable.
|
||||
if runtime.GOOS == "darwin" {
|
||||
if execPath, err = filepath.EvalSymlinks(execPath); err != nil {
|
||||
return execPath, err
|
||||
}
|
||||
}
|
||||
return execPath, nil
|
||||
}
|
||||
|
||||
func getAbs(execPath string) (string, error) {
|
||||
if initCwdErr != nil {
|
||||
return execPath, initCwdErr
|
||||
}
|
||||
// The execPath may begin with a "../" or a "./" so clean it first.
|
||||
// Join the two paths, trailing and starting slashes undetermined, so use
|
||||
// the generic Join function.
|
||||
return filepath.Join(initCwd, filepath.Clean(execPath)), nil
|
||||
}
|
|
@ -1,34 +0,0 @@
|
|||
// Copyright 2012 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package osext
|
||||
|
||||
import (
|
||||
"syscall"
|
||||
"unicode/utf16"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
var (
|
||||
kernel = syscall.MustLoadDLL("kernel32.dll")
|
||||
getModuleFileNameProc = kernel.MustFindProc("GetModuleFileNameW")
|
||||
)
|
||||
|
||||
// GetModuleFileName() with hModule = NULL
|
||||
func executable() (exePath string, err error) {
|
||||
return getModuleFileName()
|
||||
}
|
||||
|
||||
func getModuleFileName() (string, error) {
|
||||
var n uint32
|
||||
b := make([]uint16, syscall.MAX_PATH)
|
||||
size := uint32(len(b))
|
||||
|
||||
r0, _, e1 := getModuleFileNameProc.Call(0, uintptr(unsafe.Pointer(&b[0])), uintptr(size))
|
||||
n = uint32(r0)
|
||||
if n == 0 {
|
||||
return "", e1
|
||||
}
|
||||
return string(utf16.Decode(b[0:n])), nil
|
||||
}
|
|
@ -1,42 +0,0 @@
|
|||
/*
|
||||
package proto defines a set of structures used to negotiate an update between an
|
||||
an application (the client) and an Equinox update service.
|
||||
*/
|
||||
package proto
|
||||
|
||||
import "time"
|
||||
|
||||
type PatchKind string
|
||||
|
||||
const (
|
||||
PatchNone PatchKind = "none"
|
||||
PatchBSDiff PatchKind = "bsdiff"
|
||||
)
|
||||
|
||||
type Request struct {
|
||||
AppID string `json:"app_id"`
|
||||
Channel string `json:"channel"`
|
||||
OS string `json:"os"`
|
||||
Arch string `json:"arch"`
|
||||
GoARM string `json:"goarm"`
|
||||
TargetVersion string `json:"target_version"`
|
||||
|
||||
CurrentVersion string `json:"current_version"`
|
||||
CurrentSHA256 string `json:"current_sha256"`
|
||||
}
|
||||
|
||||
type Response struct {
|
||||
Available bool `json:"available"`
|
||||
DownloadURL string `json:"download_url"`
|
||||
Checksum string `json:"checksum"`
|
||||
Signature string `json:"signature"`
|
||||
Patch PatchKind `json:"patch_type"`
|
||||
Release Release `json:"release"`
|
||||
}
|
||||
|
||||
type Release struct {
|
||||
Title string `json:"title"`
|
||||
Version string `json:"version"`
|
||||
Description string `json:"description"`
|
||||
CreateDate time.Time `json:"create_date"`
|
||||
}
|
|
@ -1,330 +0,0 @@
|
|||
package equinox
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"crypto"
|
||||
"crypto/sha256"
|
||||
"crypto/x509"
|
||||
"encoding/hex"
|
||||
"encoding/json"
|
||||
"encoding/pem"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"io/ioutil"
|
||||
"net/http"
|
||||
"os"
|
||||
"runtime"
|
||||
"time"
|
||||
|
||||
"github.com/equinox-io/equinox/internal/go-update"
|
||||
"github.com/equinox-io/equinox/internal/osext"
|
||||
"github.com/equinox-io/equinox/proto"
|
||||
)
|
||||
|
||||
const protocolVersion = "1"
|
||||
const defaultCheckURL = "https://update.equinox.io/check"
|
||||
const userAgent = "EquinoxSDK/1.0"
|
||||
|
||||
var NotAvailableErr = errors.New("No update available")
|
||||
|
||||
type Options struct {
|
||||
// Channel specifies the name of an Equinox release channel to check for
|
||||
// a newer version of the application.
|
||||
//
|
||||
// If empty, defaults to 'stable'.
|
||||
Channel string
|
||||
|
||||
// Version requests an update to a specific version of the application.
|
||||
// If specified, `Channel` is ignored.
|
||||
Version string
|
||||
|
||||
// TargetPath defines the path to the file to update.
|
||||
// The emptry string means 'the executable file of the running program'.
|
||||
TargetPath string
|
||||
|
||||
// Create TargetPath replacement with this file mode. If zero, defaults to 0755.
|
||||
TargetMode os.FileMode
|
||||
|
||||
// Public key to use for signature verification. If nil, no signature
|
||||
// verification is done. Use `SetPublicKeyPEM` to set this field with PEM data.
|
||||
PublicKey crypto.PublicKey
|
||||
|
||||
// Target operating system of the update. Uses the same standard OS names used
|
||||
// by Go build tags (windows, darwin, linux, etc).
|
||||
// If empty, it will be populated by consulting runtime.GOOS
|
||||
OS string
|
||||
|
||||
// Target architecture of the update. Uses the same standard Arch names used
|
||||
// by Go build tags (amd64, 386, arm, etc).
|
||||
// If empty, it will be populated by consulting runtime.GOARCH
|
||||
Arch string
|
||||
|
||||
// Target ARM architecture, if a specific one if required. Uses the same names
|
||||
// as the GOARM environment variable (5, 6, 7).
|
||||
//
|
||||
// GoARM is ignored if Arch != 'arm'.
|
||||
// GoARM is ignored if it is the empty string. Omit it if you do not need
|
||||
// to distinguish between ARM versions.
|
||||
GoARM string
|
||||
|
||||
// The current application version. This is used for statistics and reporting only,
|
||||
// it is optional.
|
||||
CurrentVersion string
|
||||
|
||||
// CheckURL is the URL to request an update check from. You should only set
|
||||
// this if you are running an on-prem Equinox server.
|
||||
// If empty the default Equinox update service endpoint is used.
|
||||
CheckURL string
|
||||
|
||||
// HTTPClient is used to make all HTTP requests necessary for the update check protocol.
|
||||
// You may configure it to use custom timeouts, proxy servers or other behaviors.
|
||||
HTTPClient *http.Client
|
||||
}
|
||||
|
||||
// Response is returned by Check when an update is available. It may be
|
||||
// passed to Apply to perform the update.
|
||||
type Response struct {
|
||||
// Version of the release that will be updated to if applied.
|
||||
ReleaseVersion string
|
||||
|
||||
// Title of the the release
|
||||
ReleaseTitle string
|
||||
|
||||
// Additional details about the release
|
||||
ReleaseDescription string
|
||||
|
||||
// Creation date of the release
|
||||
ReleaseDate time.Time
|
||||
|
||||
downloadURL string
|
||||
checksum []byte
|
||||
signature []byte
|
||||
patch proto.PatchKind
|
||||
opts Options
|
||||
}
|
||||
|
||||
// SetPublicKeyPEM is a convenience method to set the PublicKey property
|
||||
// used for checking a completed update's signature by parsing a
|
||||
// Public Key formatted as PEM data.
|
||||
func (o *Options) SetPublicKeyPEM(pembytes []byte) error {
|
||||
block, _ := pem.Decode(pembytes)
|
||||
if block == nil {
|
||||
return errors.New("couldn't parse PEM data")
|
||||
}
|
||||
|
||||
pub, err := x509.ParsePKIXPublicKey(block.Bytes)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
o.PublicKey = pub
|
||||
return nil
|
||||
}
|
||||
|
||||
// Check communicates with an Equinox update service to determine if
|
||||
// an update for the given application matching the specified options is
|
||||
// available. The returned error is nil only if an update is available.
|
||||
//
|
||||
// The appID is issued to you when creating an application at https://equinox.io
|
||||
//
|
||||
// You can compare the returned error to NotAvailableErr to differentiate between
|
||||
// a successful check that found no update from other errors like a failed
|
||||
// network connection.
|
||||
func Check(appID string, opts Options) (Response, error) {
|
||||
var req, err = checkRequest(appID, &opts)
|
||||
|
||||
if err != nil {
|
||||
return Response{}, err
|
||||
}
|
||||
|
||||
return doCheckRequest(opts, req)
|
||||
}
|
||||
|
||||
func checkRequest(appID string, opts *Options) (*http.Request, error) {
|
||||
if opts.Channel == "" {
|
||||
opts.Channel = "stable"
|
||||
}
|
||||
if opts.TargetPath == "" {
|
||||
var err error
|
||||
opts.TargetPath, err = osext.Executable()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
if opts.OS == "" {
|
||||
opts.OS = runtime.GOOS
|
||||
}
|
||||
if opts.Arch == "" {
|
||||
opts.Arch = runtime.GOARCH
|
||||
}
|
||||
if opts.CheckURL == "" {
|
||||
opts.CheckURL = defaultCheckURL
|
||||
}
|
||||
if opts.HTTPClient == nil {
|
||||
opts.HTTPClient = new(http.Client)
|
||||
}
|
||||
opts.HTTPClient.Transport = newUserAgentTransport(userAgent, opts.HTTPClient.Transport)
|
||||
|
||||
checksum := computeChecksum(opts.TargetPath)
|
||||
|
||||
payload, err := json.Marshal(proto.Request{
|
||||
AppID: appID,
|
||||
Channel: opts.Channel,
|
||||
OS: opts.OS,
|
||||
Arch: opts.Arch,
|
||||
GoARM: opts.GoARM,
|
||||
TargetVersion: opts.Version,
|
||||
CurrentVersion: opts.CurrentVersion,
|
||||
CurrentSHA256: checksum,
|
||||
})
|
||||
|
||||
req, err := http.NewRequest("POST", opts.CheckURL, bytes.NewReader(payload))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
req.Header.Set("Accept", fmt.Sprintf("application/json; q=1; version=%s; charset=utf-8", protocolVersion))
|
||||
req.Header.Set("Content-Type", "application/json; charset=utf-8")
|
||||
req.Close = true
|
||||
|
||||
return req, err
|
||||
}
|
||||
|
||||
func doCheckRequest(opts Options, req *http.Request) (r Response, err error) {
|
||||
resp, err := opts.HTTPClient.Do(req)
|
||||
if err != nil {
|
||||
return r, err
|
||||
}
|
||||
defer resp.Body.Close()
|
||||
|
||||
if resp.StatusCode != 200 {
|
||||
body, _ := ioutil.ReadAll(resp.Body)
|
||||
return r, fmt.Errorf("Server responded with %s: %s", resp.Status, body)
|
||||
}
|
||||
|
||||
var protoResp proto.Response
|
||||
err = json.NewDecoder(resp.Body).Decode(&protoResp)
|
||||
if err != nil {
|
||||
return r, err
|
||||
}
|
||||
|
||||
if !protoResp.Available {
|
||||
return r, NotAvailableErr
|
||||
}
|
||||
|
||||
r.ReleaseVersion = protoResp.Release.Version
|
||||
r.ReleaseTitle = protoResp.Release.Title
|
||||
r.ReleaseDescription = protoResp.Release.Description
|
||||
r.ReleaseDate = protoResp.Release.CreateDate
|
||||
r.downloadURL = protoResp.DownloadURL
|
||||
r.patch = protoResp.Patch
|
||||
r.opts = opts
|
||||
r.checksum, err = hex.DecodeString(protoResp.Checksum)
|
||||
if err != nil {
|
||||
return r, err
|
||||
}
|
||||
r.signature, err = hex.DecodeString(protoResp.Signature)
|
||||
if err != nil {
|
||||
return r, err
|
||||
}
|
||||
|
||||
return r, nil
|
||||
}
|
||||
|
||||
func computeChecksum(path string) string {
|
||||
f, err := os.Open(path)
|
||||
if err != nil {
|
||||
return ""
|
||||
}
|
||||
defer f.Close()
|
||||
h := sha256.New()
|
||||
_, err = io.Copy(h, f)
|
||||
if err != nil {
|
||||
return ""
|
||||
}
|
||||
return hex.EncodeToString(h.Sum(nil))
|
||||
}
|
||||
|
||||
// Apply performs an update of the current executable (or TargetFile, if it was
|
||||
// set on the Options) with the update specified by Response.
|
||||
//
|
||||
// Error is nil if and only if the entire update completes successfully.
|
||||
func (r Response) Apply() error {
|
||||
var req, opts, err = r.applyRequest()
|
||||
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return r.applyUpdate(req, opts)
|
||||
}
|
||||
|
||||
func (r Response) applyRequest() (*http.Request, update.Options, error) {
|
||||
opts := update.Options{
|
||||
TargetPath: r.opts.TargetPath,
|
||||
TargetMode: r.opts.TargetMode,
|
||||
Checksum: r.checksum,
|
||||
Signature: r.signature,
|
||||
Verifier: update.NewECDSAVerifier(),
|
||||
PublicKey: r.opts.PublicKey,
|
||||
}
|
||||
switch r.patch {
|
||||
case proto.PatchBSDiff:
|
||||
opts.Patcher = update.NewBSDiffPatcher()
|
||||
}
|
||||
|
||||
if err := opts.CheckPermissions(); err != nil {
|
||||
return nil, opts, err
|
||||
}
|
||||
|
||||
req, err := http.NewRequest("GET", r.downloadURL, nil)
|
||||
return req, opts, err
|
||||
}
|
||||
|
||||
func (r Response) applyUpdate(req *http.Request, opts update.Options) error {
|
||||
// fetch the update
|
||||
req.Close = true
|
||||
resp, err := r.opts.HTTPClient.Do(req)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
defer resp.Body.Close()
|
||||
|
||||
// check that we got a patch
|
||||
if resp.StatusCode >= 400 {
|
||||
msg := "error downloading patch"
|
||||
|
||||
id := resp.Header.Get("Request-Id")
|
||||
if id != "" {
|
||||
msg += ", request " + id
|
||||
}
|
||||
|
||||
blob, err := ioutil.ReadAll(resp.Body)
|
||||
if err == nil {
|
||||
msg += ": " + string(bytes.TrimSpace(blob))
|
||||
}
|
||||
return fmt.Errorf(msg)
|
||||
}
|
||||
|
||||
return update.Apply(resp.Body, opts)
|
||||
}
|
||||
|
||||
type userAgentTransport struct {
|
||||
userAgent string
|
||||
http.RoundTripper
|
||||
}
|
||||
|
||||
func newUserAgentTransport(userAgent string, rt http.RoundTripper) *userAgentTransport {
|
||||
if rt == nil {
|
||||
rt = http.DefaultTransport
|
||||
}
|
||||
return &userAgentTransport{userAgent, rt}
|
||||
}
|
||||
|
||||
func (t *userAgentTransport) RoundTrip(r *http.Request) (*http.Response, error) {
|
||||
if r.Header.Get("User-Agent") == "" {
|
||||
r.Header.Set("User-Agent", t.userAgent)
|
||||
}
|
||||
return t.RoundTripper.RoundTrip(r)
|
||||
}
|
|
@ -1,29 +0,0 @@
|
|||
// +build go1.7
|
||||
|
||||
package equinox
|
||||
|
||||
import (
|
||||
"context"
|
||||
)
|
||||
|
||||
// CheckContext is like Check but includes a context.
|
||||
func CheckContext(ctx context.Context, appID string, opts Options) (Response, error) {
|
||||
var req, err = checkRequest(appID, &opts)
|
||||
|
||||
if err != nil {
|
||||
return Response{}, err
|
||||
}
|
||||
|
||||
return doCheckRequest(opts, req.WithContext(ctx))
|
||||
}
|
||||
|
||||
// ApplyContext is like Apply but includes a context.
|
||||
func (r Response) ApplyContext(ctx context.Context) error {
|
||||
var req, opts, err = r.applyRequest()
|
||||
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return r.applyUpdate(req.WithContext(ctx), opts)
|
||||
}
|
|
@ -0,0 +1,3 @@
|
|||
ignore:
|
||||
- "output_tests/.*"
|
||||
|
|
@ -0,0 +1,4 @@
|
|||
/vendor
|
||||
/bug_test.go
|
||||
/coverage.txt
|
||||
/.idea
|
|
@ -0,0 +1,14 @@
|
|||
language: go
|
||||
|
||||
go:
|
||||
- 1.8.x
|
||||
- 1.x
|
||||
|
||||
before_install:
|
||||
- go get -t -v ./...
|
||||
|
||||
script:
|
||||
- ./test.sh
|
||||
|
||||
after_success:
|
||||
- bash <(curl -s https://codecov.io/bash)
|
|
@ -0,0 +1,21 @@
|
|||
# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
|
||||
|
||||
|
||||
[[projects]]
|
||||
name = "github.com/modern-go/concurrent"
|
||||
packages = ["."]
|
||||
revision = "e0a39a4cb4216ea8db28e22a69f4ec25610d513a"
|
||||
version = "1.0.0"
|
||||
|
||||
[[projects]]
|
||||
name = "github.com/modern-go/reflect2"
|
||||
packages = ["."]
|
||||
revision = "4b7aa43c6742a2c18fdef89dd197aaae7dac7ccd"
|
||||
version = "1.0.1"
|
||||
|
||||
[solve-meta]
|
||||
analyzer-name = "dep"
|
||||
analyzer-version = 1
|
||||
inputs-digest = "ea54a775e5a354cb015502d2e7aa4b74230fc77e894f34a838b268c25ec8eeb8"
|
||||
solver-name = "gps-cdcl"
|
||||
solver-version = 1
|
|
@ -0,0 +1,26 @@
|
|||
# Gopkg.toml example
|
||||
#
|
||||
# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
|
||||
# for detailed Gopkg.toml documentation.
|
||||
#
|
||||
# required = ["github.com/user/thing/cmd/thing"]
|
||||
# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
|
||||
#
|
||||
# [[constraint]]
|
||||
# name = "github.com/user/project"
|
||||
# version = "1.0.0"
|
||||
#
|
||||
# [[constraint]]
|
||||
# name = "github.com/user/project2"
|
||||
# branch = "dev"
|
||||
# source = "github.com/myfork/project2"
|
||||
#
|
||||
# [[override]]
|
||||
# name = "github.com/x/y"
|
||||
# version = "2.4.0"
|
||||
|
||||
ignored = ["github.com/davecgh/go-spew*","github.com/google/gofuzz*","github.com/stretchr/testify*"]
|
||||
|
||||
[[constraint]]
|
||||
name = "github.com/modern-go/reflect2"
|
||||
version = "1.0.1"
|
|
@ -1,6 +1,6 @@
|
|||
MIT License
|
||||
|
||||
Copyright (c) 2017 Equinox
|
||||
Copyright (c) 2016 json-iterator
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
|
@ -0,0 +1,87 @@
|
|||
[![Sourcegraph](https://sourcegraph.com/github.com/json-iterator/go/-/badge.svg)](https://sourcegraph.com/github.com/json-iterator/go?badge)
|
||||
[![GoDoc](http://img.shields.io/badge/go-documentation-blue.svg?style=flat-square)](https://pkg.go.dev/github.com/json-iterator/go)
|
||||
[![Build Status](https://travis-ci.org/json-iterator/go.svg?branch=master)](https://travis-ci.org/json-iterator/go)
|
||||
[![codecov](https://codecov.io/gh/json-iterator/go/branch/master/graph/badge.svg)](https://codecov.io/gh/json-iterator/go)
|
||||
[![rcard](https://goreportcard.com/badge/github.com/json-iterator/go)](https://goreportcard.com/report/github.com/json-iterator/go)
|
||||
[![License](http://img.shields.io/badge/license-mit-blue.svg?style=flat-square)](https://raw.githubusercontent.com/json-iterator/go/master/LICENSE)
|
||||
[![Gitter chat](https://badges.gitter.im/gitterHQ/gitter.png)](https://gitter.im/json-iterator/Lobby)
|
||||
|
||||
A high-performance 100% compatible drop-in replacement of "encoding/json"
|
||||
|
||||
You can also use thrift like JSON using [thrift-iterator](https://github.com/thrift-iterator/go)
|
||||
|
||||
# Benchmark
|
||||
|
||||
![benchmark](http://jsoniter.com/benchmarks/go-benchmark.png)
|
||||
|
||||
Source code: https://github.com/json-iterator/go-benchmark/blob/master/src/github.com/json-iterator/go-benchmark/benchmark_medium_payload_test.go
|
||||
|
||||
Raw Result (easyjson requires static code generation)
|
||||
|
||||
| | ns/op | allocation bytes | allocation times |
|
||||
| --------------- | ----------- | ---------------- | ---------------- |
|
||||
| std decode | 35510 ns/op | 1960 B/op | 99 allocs/op |
|
||||
| easyjson decode | 8499 ns/op | 160 B/op | 4 allocs/op |
|
||||
| jsoniter decode | 5623 ns/op | 160 B/op | 3 allocs/op |
|
||||
| std encode | 2213 ns/op | 712 B/op | 5 allocs/op |
|
||||
| easyjson encode | 883 ns/op | 576 B/op | 3 allocs/op |
|
||||
| jsoniter encode | 837 ns/op | 384 B/op | 4 allocs/op |
|
||||
|
||||
Always benchmark with your own workload.
|
||||
The result depends heavily on the data input.
|
||||
|
||||
# Usage
|
||||
|
||||
100% compatibility with standard lib
|
||||
|
||||
Replace
|
||||
|
||||
```go
|
||||
import "encoding/json"
|
||||
json.Marshal(&data)
|
||||
```
|
||||
|
||||
with
|
||||
|
||||
```go
|
||||
import jsoniter "github.com/json-iterator/go"
|
||||
|
||||
var json = jsoniter.ConfigCompatibleWithStandardLibrary
|
||||
json.Marshal(&data)
|
||||
```
|
||||
|
||||
Replace
|
||||
|
||||
```go
|
||||
import "encoding/json"
|
||||
json.Unmarshal(input, &data)
|
||||
```
|
||||
|
||||
with
|
||||
|
||||
```go
|
||||
import jsoniter "github.com/json-iterator/go"
|
||||
|
||||
var json = jsoniter.ConfigCompatibleWithStandardLibrary
|
||||
json.Unmarshal(input, &data)
|
||||
```
|
||||
|
||||
[More documentation](http://jsoniter.com/migrate-from-go-std.html)
|
||||
|
||||
# How to get
|
||||
|
||||
```
|
||||
go get github.com/json-iterator/go
|
||||
```
|
||||
|
||||
# Contribution Welcomed !
|
||||
|
||||
Contributors
|
||||
|
||||
- [thockin](https://github.com/thockin)
|
||||
- [mattn](https://github.com/mattn)
|
||||
- [cch123](https://github.com/cch123)
|
||||
- [Oleg Shaldybin](https://github.com/olegshaldybin)
|
||||
- [Jason Toffaletti](https://github.com/toffaletti)
|
||||
|
||||
Report issue or pull request, or email taowen@gmail.com, or [![Gitter chat](https://badges.gitter.im/gitterHQ/gitter.png)](https://gitter.im/json-iterator/Lobby)
|
|
@ -0,0 +1,150 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"io"
|
||||
)
|
||||
|
||||
// RawMessage to make replace json with jsoniter
|
||||
type RawMessage []byte
|
||||
|
||||
// Unmarshal adapts to json/encoding Unmarshal API
|
||||
//
|
||||
// Unmarshal parses the JSON-encoded data and stores the result in the value pointed to by v.
|
||||
// Refer to https://godoc.org/encoding/json#Unmarshal for more information
|
||||
func Unmarshal(data []byte, v interface{}) error {
|
||||
return ConfigDefault.Unmarshal(data, v)
|
||||
}
|
||||
|
||||
// UnmarshalFromString is a convenient method to read from string instead of []byte
|
||||
func UnmarshalFromString(str string, v interface{}) error {
|
||||
return ConfigDefault.UnmarshalFromString(str, v)
|
||||
}
|
||||
|
||||
// Get quick method to get value from deeply nested JSON structure
|
||||
func Get(data []byte, path ...interface{}) Any {
|
||||
return ConfigDefault.Get(data, path...)
|
||||
}
|
||||
|
||||
// Marshal adapts to json/encoding Marshal API
|
||||
//
|
||||
// Marshal returns the JSON encoding of v, adapts to json/encoding Marshal API
|
||||
// Refer to https://godoc.org/encoding/json#Marshal for more information
|
||||
func Marshal(v interface{}) ([]byte, error) {
|
||||
return ConfigDefault.Marshal(v)
|
||||
}
|
||||
|
||||
// MarshalIndent same as json.MarshalIndent. Prefix is not supported.
|
||||
func MarshalIndent(v interface{}, prefix, indent string) ([]byte, error) {
|
||||
return ConfigDefault.MarshalIndent(v, prefix, indent)
|
||||
}
|
||||
|
||||
// MarshalToString convenient method to write as string instead of []byte
|
||||
func MarshalToString(v interface{}) (string, error) {
|
||||
return ConfigDefault.MarshalToString(v)
|
||||
}
|
||||
|
||||
// NewDecoder adapts to json/stream NewDecoder API.
|
||||
//
|
||||
// NewDecoder returns a new decoder that reads from r.
|
||||
//
|
||||
// Instead of a json/encoding Decoder, an Decoder is returned
|
||||
// Refer to https://godoc.org/encoding/json#NewDecoder for more information
|
||||
func NewDecoder(reader io.Reader) *Decoder {
|
||||
return ConfigDefault.NewDecoder(reader)
|
||||
}
|
||||
|
||||
// Decoder reads and decodes JSON values from an input stream.
|
||||
// Decoder provides identical APIs with json/stream Decoder (Token() and UseNumber() are in progress)
|
||||
type Decoder struct {
|
||||
iter *Iterator
|
||||
}
|
||||
|
||||
// Decode decode JSON into interface{}
|
||||
func (adapter *Decoder) Decode(obj interface{}) error {
|
||||
if adapter.iter.head == adapter.iter.tail && adapter.iter.reader != nil {
|
||||
if !adapter.iter.loadMore() {
|
||||
return io.EOF
|
||||
}
|
||||
}
|
||||
adapter.iter.ReadVal(obj)
|
||||
err := adapter.iter.Error
|
||||
if err == io.EOF {
|
||||
return nil
|
||||
}
|
||||
return adapter.iter.Error
|
||||
}
|
||||
|
||||
// More is there more?
|
||||
func (adapter *Decoder) More() bool {
|
||||
iter := adapter.iter
|
||||
if iter.Error != nil {
|
||||
return false
|
||||
}
|
||||
c := iter.nextToken()
|
||||
if c == 0 {
|
||||
return false
|
||||
}
|
||||
iter.unreadByte()
|
||||
return c != ']' && c != '}'
|
||||
}
|
||||
|
||||
// Buffered remaining buffer
|
||||
func (adapter *Decoder) Buffered() io.Reader {
|
||||
remaining := adapter.iter.buf[adapter.iter.head:adapter.iter.tail]
|
||||
return bytes.NewReader(remaining)
|
||||
}
|
||||
|
||||
// UseNumber causes the Decoder to unmarshal a number into an interface{} as a
|
||||
// Number instead of as a float64.
|
||||
func (adapter *Decoder) UseNumber() {
|
||||
cfg := adapter.iter.cfg.configBeforeFrozen
|
||||
cfg.UseNumber = true
|
||||
adapter.iter.cfg = cfg.frozeWithCacheReuse(adapter.iter.cfg.extraExtensions)
|
||||
}
|
||||
|
||||
// DisallowUnknownFields causes the Decoder to return an error when the destination
|
||||
// is a struct and the input contains object keys which do not match any
|
||||
// non-ignored, exported fields in the destination.
|
||||
func (adapter *Decoder) DisallowUnknownFields() {
|
||||
cfg := adapter.iter.cfg.configBeforeFrozen
|
||||
cfg.DisallowUnknownFields = true
|
||||
adapter.iter.cfg = cfg.frozeWithCacheReuse(adapter.iter.cfg.extraExtensions)
|
||||
}
|
||||
|
||||
// NewEncoder same as json.NewEncoder
|
||||
func NewEncoder(writer io.Writer) *Encoder {
|
||||
return ConfigDefault.NewEncoder(writer)
|
||||
}
|
||||
|
||||
// Encoder same as json.Encoder
|
||||
type Encoder struct {
|
||||
stream *Stream
|
||||
}
|
||||
|
||||
// Encode encode interface{} as JSON to io.Writer
|
||||
func (adapter *Encoder) Encode(val interface{}) error {
|
||||
adapter.stream.WriteVal(val)
|
||||
adapter.stream.WriteRaw("\n")
|
||||
adapter.stream.Flush()
|
||||
return adapter.stream.Error
|
||||
}
|
||||
|
||||
// SetIndent set the indention. Prefix is not supported
|
||||
func (adapter *Encoder) SetIndent(prefix, indent string) {
|
||||
config := adapter.stream.cfg.configBeforeFrozen
|
||||
config.IndentionStep = len(indent)
|
||||
adapter.stream.cfg = config.frozeWithCacheReuse(adapter.stream.cfg.extraExtensions)
|
||||
}
|
||||
|
||||
// SetEscapeHTML escape html by default, set to false to disable
|
||||
func (adapter *Encoder) SetEscapeHTML(escapeHTML bool) {
|
||||
config := adapter.stream.cfg.configBeforeFrozen
|
||||
config.EscapeHTML = escapeHTML
|
||||
adapter.stream.cfg = config.frozeWithCacheReuse(adapter.stream.cfg.extraExtensions)
|
||||
}
|
||||
|
||||
// Valid reports whether data is a valid JSON encoding.
|
||||
func Valid(data []byte) bool {
|
||||
return ConfigDefault.Valid(data)
|
||||
}
|
|
@ -0,0 +1,325 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
"github.com/modern-go/reflect2"
|
||||
"io"
|
||||
"reflect"
|
||||
"strconv"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
// Any generic object representation.
|
||||
// The lazy json implementation holds []byte and parse lazily.
|
||||
type Any interface {
|
||||
LastError() error
|
||||
ValueType() ValueType
|
||||
MustBeValid() Any
|
||||
ToBool() bool
|
||||
ToInt() int
|
||||
ToInt32() int32
|
||||
ToInt64() int64
|
||||
ToUint() uint
|
||||
ToUint32() uint32
|
||||
ToUint64() uint64
|
||||
ToFloat32() float32
|
||||
ToFloat64() float64
|
||||
ToString() string
|
||||
ToVal(val interface{})
|
||||
Get(path ...interface{}) Any
|
||||
Size() int
|
||||
Keys() []string
|
||||
GetInterface() interface{}
|
||||
WriteTo(stream *Stream)
|
||||
}
|
||||
|
||||
type baseAny struct{}
|
||||
|
||||
func (any *baseAny) Get(path ...interface{}) Any {
|
||||
return &invalidAny{baseAny{}, fmt.Errorf("GetIndex %v from simple value", path)}
|
||||
}
|
||||
|
||||
func (any *baseAny) Size() int {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *baseAny) Keys() []string {
|
||||
return []string{}
|
||||
}
|
||||
|
||||
func (any *baseAny) ToVal(obj interface{}) {
|
||||
panic("not implemented")
|
||||
}
|
||||
|
||||
// WrapInt32 turn int32 into Any interface
|
||||
func WrapInt32(val int32) Any {
|
||||
return &int32Any{baseAny{}, val}
|
||||
}
|
||||
|
||||
// WrapInt64 turn int64 into Any interface
|
||||
func WrapInt64(val int64) Any {
|
||||
return &int64Any{baseAny{}, val}
|
||||
}
|
||||
|
||||
// WrapUint32 turn uint32 into Any interface
|
||||
func WrapUint32(val uint32) Any {
|
||||
return &uint32Any{baseAny{}, val}
|
||||
}
|
||||
|
||||
// WrapUint64 turn uint64 into Any interface
|
||||
func WrapUint64(val uint64) Any {
|
||||
return &uint64Any{baseAny{}, val}
|
||||
}
|
||||
|
||||
// WrapFloat64 turn float64 into Any interface
|
||||
func WrapFloat64(val float64) Any {
|
||||
return &floatAny{baseAny{}, val}
|
||||
}
|
||||
|
||||
// WrapString turn string into Any interface
|
||||
func WrapString(val string) Any {
|
||||
return &stringAny{baseAny{}, val}
|
||||
}
|
||||
|
||||
// Wrap turn a go object into Any interface
|
||||
func Wrap(val interface{}) Any {
|
||||
if val == nil {
|
||||
return &nilAny{}
|
||||
}
|
||||
asAny, isAny := val.(Any)
|
||||
if isAny {
|
||||
return asAny
|
||||
}
|
||||
typ := reflect2.TypeOf(val)
|
||||
switch typ.Kind() {
|
||||
case reflect.Slice:
|
||||
return wrapArray(val)
|
||||
case reflect.Struct:
|
||||
return wrapStruct(val)
|
||||
case reflect.Map:
|
||||
return wrapMap(val)
|
||||
case reflect.String:
|
||||
return WrapString(val.(string))
|
||||
case reflect.Int:
|
||||
if strconv.IntSize == 32 {
|
||||
return WrapInt32(int32(val.(int)))
|
||||
}
|
||||
return WrapInt64(int64(val.(int)))
|
||||
case reflect.Int8:
|
||||
return WrapInt32(int32(val.(int8)))
|
||||
case reflect.Int16:
|
||||
return WrapInt32(int32(val.(int16)))
|
||||
case reflect.Int32:
|
||||
return WrapInt32(val.(int32))
|
||||
case reflect.Int64:
|
||||
return WrapInt64(val.(int64))
|
||||
case reflect.Uint:
|
||||
if strconv.IntSize == 32 {
|
||||
return WrapUint32(uint32(val.(uint)))
|
||||
}
|
||||
return WrapUint64(uint64(val.(uint)))
|
||||
case reflect.Uintptr:
|
||||
if ptrSize == 32 {
|
||||
return WrapUint32(uint32(val.(uintptr)))
|
||||
}
|
||||
return WrapUint64(uint64(val.(uintptr)))
|
||||
case reflect.Uint8:
|
||||
return WrapUint32(uint32(val.(uint8)))
|
||||
case reflect.Uint16:
|
||||
return WrapUint32(uint32(val.(uint16)))
|
||||
case reflect.Uint32:
|
||||
return WrapUint32(uint32(val.(uint32)))
|
||||
case reflect.Uint64:
|
||||
return WrapUint64(val.(uint64))
|
||||
case reflect.Float32:
|
||||
return WrapFloat64(float64(val.(float32)))
|
||||
case reflect.Float64:
|
||||
return WrapFloat64(val.(float64))
|
||||
case reflect.Bool:
|
||||
if val.(bool) == true {
|
||||
return &trueAny{}
|
||||
}
|
||||
return &falseAny{}
|
||||
}
|
||||
return &invalidAny{baseAny{}, fmt.Errorf("unsupported type: %v", typ)}
|
||||
}
|
||||
|
||||
// ReadAny read next JSON element as an Any object. It is a better json.RawMessage.
|
||||
func (iter *Iterator) ReadAny() Any {
|
||||
return iter.readAny()
|
||||
}
|
||||
|
||||
func (iter *Iterator) readAny() Any {
|
||||
c := iter.nextToken()
|
||||
switch c {
|
||||
case '"':
|
||||
iter.unreadByte()
|
||||
return &stringAny{baseAny{}, iter.ReadString()}
|
||||
case 'n':
|
||||
iter.skipThreeBytes('u', 'l', 'l') // null
|
||||
return &nilAny{}
|
||||
case 't':
|
||||
iter.skipThreeBytes('r', 'u', 'e') // true
|
||||
return &trueAny{}
|
||||
case 'f':
|
||||
iter.skipFourBytes('a', 'l', 's', 'e') // false
|
||||
return &falseAny{}
|
||||
case '{':
|
||||
return iter.readObjectAny()
|
||||
case '[':
|
||||
return iter.readArrayAny()
|
||||
case '-':
|
||||
return iter.readNumberAny(false)
|
||||
case 0:
|
||||
return &invalidAny{baseAny{}, errors.New("input is empty")}
|
||||
default:
|
||||
return iter.readNumberAny(true)
|
||||
}
|
||||
}
|
||||
|
||||
func (iter *Iterator) readNumberAny(positive bool) Any {
|
||||
iter.startCapture(iter.head - 1)
|
||||
iter.skipNumber()
|
||||
lazyBuf := iter.stopCapture()
|
||||
return &numberLazyAny{baseAny{}, iter.cfg, lazyBuf, nil}
|
||||
}
|
||||
|
||||
func (iter *Iterator) readObjectAny() Any {
|
||||
iter.startCapture(iter.head - 1)
|
||||
iter.skipObject()
|
||||
lazyBuf := iter.stopCapture()
|
||||
return &objectLazyAny{baseAny{}, iter.cfg, lazyBuf, nil}
|
||||
}
|
||||
|
||||
func (iter *Iterator) readArrayAny() Any {
|
||||
iter.startCapture(iter.head - 1)
|
||||
iter.skipArray()
|
||||
lazyBuf := iter.stopCapture()
|
||||
return &arrayLazyAny{baseAny{}, iter.cfg, lazyBuf, nil}
|
||||
}
|
||||
|
||||
func locateObjectField(iter *Iterator, target string) []byte {
|
||||
var found []byte
|
||||
iter.ReadObjectCB(func(iter *Iterator, field string) bool {
|
||||
if field == target {
|
||||
found = iter.SkipAndReturnBytes()
|
||||
return false
|
||||
}
|
||||
iter.Skip()
|
||||
return true
|
||||
})
|
||||
return found
|
||||
}
|
||||
|
||||
func locateArrayElement(iter *Iterator, target int) []byte {
|
||||
var found []byte
|
||||
n := 0
|
||||
iter.ReadArrayCB(func(iter *Iterator) bool {
|
||||
if n == target {
|
||||
found = iter.SkipAndReturnBytes()
|
||||
return false
|
||||
}
|
||||
iter.Skip()
|
||||
n++
|
||||
return true
|
||||
})
|
||||
return found
|
||||
}
|
||||
|
||||
func locatePath(iter *Iterator, path []interface{}) Any {
|
||||
for i, pathKeyObj := range path {
|
||||
switch pathKey := pathKeyObj.(type) {
|
||||
case string:
|
||||
valueBytes := locateObjectField(iter, pathKey)
|
||||
if valueBytes == nil {
|
||||
return newInvalidAny(path[i:])
|
||||
}
|
||||
iter.ResetBytes(valueBytes)
|
||||
case int:
|
||||
valueBytes := locateArrayElement(iter, pathKey)
|
||||
if valueBytes == nil {
|
||||
return newInvalidAny(path[i:])
|
||||
}
|
||||
iter.ResetBytes(valueBytes)
|
||||
case int32:
|
||||
if '*' == pathKey {
|
||||
return iter.readAny().Get(path[i:]...)
|
||||
}
|
||||
return newInvalidAny(path[i:])
|
||||
default:
|
||||
return newInvalidAny(path[i:])
|
||||
}
|
||||
}
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
return &invalidAny{baseAny{}, iter.Error}
|
||||
}
|
||||
return iter.readAny()
|
||||
}
|
||||
|
||||
var anyType = reflect2.TypeOfPtr((*Any)(nil)).Elem()
|
||||
|
||||
func createDecoderOfAny(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
if typ == anyType {
|
||||
return &directAnyCodec{}
|
||||
}
|
||||
if typ.Implements(anyType) {
|
||||
return &anyCodec{
|
||||
valType: typ,
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func createEncoderOfAny(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
if typ == anyType {
|
||||
return &directAnyCodec{}
|
||||
}
|
||||
if typ.Implements(anyType) {
|
||||
return &anyCodec{
|
||||
valType: typ,
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type anyCodec struct {
|
||||
valType reflect2.Type
|
||||
}
|
||||
|
||||
func (codec *anyCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
panic("not implemented")
|
||||
}
|
||||
|
||||
func (codec *anyCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
obj := codec.valType.UnsafeIndirect(ptr)
|
||||
any := obj.(Any)
|
||||
any.WriteTo(stream)
|
||||
}
|
||||
|
||||
func (codec *anyCodec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
obj := codec.valType.UnsafeIndirect(ptr)
|
||||
any := obj.(Any)
|
||||
return any.Size() == 0
|
||||
}
|
||||
|
||||
type directAnyCodec struct {
|
||||
}
|
||||
|
||||
func (codec *directAnyCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
*(*Any)(ptr) = iter.readAny()
|
||||
}
|
||||
|
||||
func (codec *directAnyCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
any := *(*Any)(ptr)
|
||||
if any == nil {
|
||||
stream.WriteNil()
|
||||
return
|
||||
}
|
||||
any.WriteTo(stream)
|
||||
}
|
||||
|
||||
func (codec *directAnyCodec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
any := *(*Any)(ptr)
|
||||
return any.Size() == 0
|
||||
}
|
|
@ -0,0 +1,278 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"reflect"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
type arrayLazyAny struct {
|
||||
baseAny
|
||||
cfg *frozenConfig
|
||||
buf []byte
|
||||
err error
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) ValueType() ValueType {
|
||||
return ArrayValue
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) MustBeValid() Any {
|
||||
return any
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) LastError() error {
|
||||
return any.err
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) ToBool() bool {
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
return iter.ReadArray()
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) ToInt() int {
|
||||
if any.ToBool() {
|
||||
return 1
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) ToInt32() int32 {
|
||||
if any.ToBool() {
|
||||
return 1
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) ToInt64() int64 {
|
||||
if any.ToBool() {
|
||||
return 1
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) ToUint() uint {
|
||||
if any.ToBool() {
|
||||
return 1
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) ToUint32() uint32 {
|
||||
if any.ToBool() {
|
||||
return 1
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) ToUint64() uint64 {
|
||||
if any.ToBool() {
|
||||
return 1
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) ToFloat32() float32 {
|
||||
if any.ToBool() {
|
||||
return 1
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) ToFloat64() float64 {
|
||||
if any.ToBool() {
|
||||
return 1
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) ToString() string {
|
||||
return *(*string)(unsafe.Pointer(&any.buf))
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) ToVal(val interface{}) {
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
iter.ReadVal(val)
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) Get(path ...interface{}) Any {
|
||||
if len(path) == 0 {
|
||||
return any
|
||||
}
|
||||
switch firstPath := path[0].(type) {
|
||||
case int:
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
valueBytes := locateArrayElement(iter, firstPath)
|
||||
if valueBytes == nil {
|
||||
return newInvalidAny(path)
|
||||
}
|
||||
iter.ResetBytes(valueBytes)
|
||||
return locatePath(iter, path[1:])
|
||||
case int32:
|
||||
if '*' == firstPath {
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
arr := make([]Any, 0)
|
||||
iter.ReadArrayCB(func(iter *Iterator) bool {
|
||||
found := iter.readAny().Get(path[1:]...)
|
||||
if found.ValueType() != InvalidValue {
|
||||
arr = append(arr, found)
|
||||
}
|
||||
return true
|
||||
})
|
||||
return wrapArray(arr)
|
||||
}
|
||||
return newInvalidAny(path)
|
||||
default:
|
||||
return newInvalidAny(path)
|
||||
}
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) Size() int {
|
||||
size := 0
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
iter.ReadArrayCB(func(iter *Iterator) bool {
|
||||
size++
|
||||
iter.Skip()
|
||||
return true
|
||||
})
|
||||
return size
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) WriteTo(stream *Stream) {
|
||||
stream.Write(any.buf)
|
||||
}
|
||||
|
||||
func (any *arrayLazyAny) GetInterface() interface{} {
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
return iter.Read()
|
||||
}
|
||||
|
||||
type arrayAny struct {
|
||||
baseAny
|
||||
val reflect.Value
|
||||
}
|
||||
|
||||
func wrapArray(val interface{}) *arrayAny {
|
||||
return &arrayAny{baseAny{}, reflect.ValueOf(val)}
|
||||
}
|
||||
|
||||
func (any *arrayAny) ValueType() ValueType {
|
||||
return ArrayValue
|
||||
}
|
||||
|
||||
func (any *arrayAny) MustBeValid() Any {
|
||||
return any
|
||||
}
|
||||
|
||||
func (any *arrayAny) LastError() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *arrayAny) ToBool() bool {
|
||||
return any.val.Len() != 0
|
||||
}
|
||||
|
||||
func (any *arrayAny) ToInt() int {
|
||||
if any.val.Len() == 0 {
|
||||
return 0
|
||||
}
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *arrayAny) ToInt32() int32 {
|
||||
if any.val.Len() == 0 {
|
||||
return 0
|
||||
}
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *arrayAny) ToInt64() int64 {
|
||||
if any.val.Len() == 0 {
|
||||
return 0
|
||||
}
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *arrayAny) ToUint() uint {
|
||||
if any.val.Len() == 0 {
|
||||
return 0
|
||||
}
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *arrayAny) ToUint32() uint32 {
|
||||
if any.val.Len() == 0 {
|
||||
return 0
|
||||
}
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *arrayAny) ToUint64() uint64 {
|
||||
if any.val.Len() == 0 {
|
||||
return 0
|
||||
}
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *arrayAny) ToFloat32() float32 {
|
||||
if any.val.Len() == 0 {
|
||||
return 0
|
||||
}
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *arrayAny) ToFloat64() float64 {
|
||||
if any.val.Len() == 0 {
|
||||
return 0
|
||||
}
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *arrayAny) ToString() string {
|
||||
str, _ := MarshalToString(any.val.Interface())
|
||||
return str
|
||||
}
|
||||
|
||||
func (any *arrayAny) Get(path ...interface{}) Any {
|
||||
if len(path) == 0 {
|
||||
return any
|
||||
}
|
||||
switch firstPath := path[0].(type) {
|
||||
case int:
|
||||
if firstPath < 0 || firstPath >= any.val.Len() {
|
||||
return newInvalidAny(path)
|
||||
}
|
||||
return Wrap(any.val.Index(firstPath).Interface())
|
||||
case int32:
|
||||
if '*' == firstPath {
|
||||
mappedAll := make([]Any, 0)
|
||||
for i := 0; i < any.val.Len(); i++ {
|
||||
mapped := Wrap(any.val.Index(i).Interface()).Get(path[1:]...)
|
||||
if mapped.ValueType() != InvalidValue {
|
||||
mappedAll = append(mappedAll, mapped)
|
||||
}
|
||||
}
|
||||
return wrapArray(mappedAll)
|
||||
}
|
||||
return newInvalidAny(path)
|
||||
default:
|
||||
return newInvalidAny(path)
|
||||
}
|
||||
}
|
||||
|
||||
func (any *arrayAny) Size() int {
|
||||
return any.val.Len()
|
||||
}
|
||||
|
||||
func (any *arrayAny) WriteTo(stream *Stream) {
|
||||
stream.WriteVal(any.val)
|
||||
}
|
||||
|
||||
func (any *arrayAny) GetInterface() interface{} {
|
||||
return any.val.Interface()
|
||||
}
|
|
@ -0,0 +1,137 @@
|
|||
package jsoniter
|
||||
|
||||
type trueAny struct {
|
||||
baseAny
|
||||
}
|
||||
|
||||
func (any *trueAny) LastError() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *trueAny) ToBool() bool {
|
||||
return true
|
||||
}
|
||||
|
||||
func (any *trueAny) ToInt() int {
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *trueAny) ToInt32() int32 {
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *trueAny) ToInt64() int64 {
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *trueAny) ToUint() uint {
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *trueAny) ToUint32() uint32 {
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *trueAny) ToUint64() uint64 {
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *trueAny) ToFloat32() float32 {
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *trueAny) ToFloat64() float64 {
|
||||
return 1
|
||||
}
|
||||
|
||||
func (any *trueAny) ToString() string {
|
||||
return "true"
|
||||
}
|
||||
|
||||
func (any *trueAny) WriteTo(stream *Stream) {
|
||||
stream.WriteTrue()
|
||||
}
|
||||
|
||||
func (any *trueAny) Parse() *Iterator {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *trueAny) GetInterface() interface{} {
|
||||
return true
|
||||
}
|
||||
|
||||
func (any *trueAny) ValueType() ValueType {
|
||||
return BoolValue
|
||||
}
|
||||
|
||||
func (any *trueAny) MustBeValid() Any {
|
||||
return any
|
||||
}
|
||||
|
||||
type falseAny struct {
|
||||
baseAny
|
||||
}
|
||||
|
||||
func (any *falseAny) LastError() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *falseAny) ToBool() bool {
|
||||
return false
|
||||
}
|
||||
|
||||
func (any *falseAny) ToInt() int {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *falseAny) ToInt32() int32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *falseAny) ToInt64() int64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *falseAny) ToUint() uint {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *falseAny) ToUint32() uint32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *falseAny) ToUint64() uint64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *falseAny) ToFloat32() float32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *falseAny) ToFloat64() float64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *falseAny) ToString() string {
|
||||
return "false"
|
||||
}
|
||||
|
||||
func (any *falseAny) WriteTo(stream *Stream) {
|
||||
stream.WriteFalse()
|
||||
}
|
||||
|
||||
func (any *falseAny) Parse() *Iterator {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *falseAny) GetInterface() interface{} {
|
||||
return false
|
||||
}
|
||||
|
||||
func (any *falseAny) ValueType() ValueType {
|
||||
return BoolValue
|
||||
}
|
||||
|
||||
func (any *falseAny) MustBeValid() Any {
|
||||
return any
|
||||
}
|
|
@ -0,0 +1,83 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"strconv"
|
||||
)
|
||||
|
||||
type floatAny struct {
|
||||
baseAny
|
||||
val float64
|
||||
}
|
||||
|
||||
func (any *floatAny) Parse() *Iterator {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *floatAny) ValueType() ValueType {
|
||||
return NumberValue
|
||||
}
|
||||
|
||||
func (any *floatAny) MustBeValid() Any {
|
||||
return any
|
||||
}
|
||||
|
||||
func (any *floatAny) LastError() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *floatAny) ToBool() bool {
|
||||
return any.ToFloat64() != 0
|
||||
}
|
||||
|
||||
func (any *floatAny) ToInt() int {
|
||||
return int(any.val)
|
||||
}
|
||||
|
||||
func (any *floatAny) ToInt32() int32 {
|
||||
return int32(any.val)
|
||||
}
|
||||
|
||||
func (any *floatAny) ToInt64() int64 {
|
||||
return int64(any.val)
|
||||
}
|
||||
|
||||
func (any *floatAny) ToUint() uint {
|
||||
if any.val > 0 {
|
||||
return uint(any.val)
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *floatAny) ToUint32() uint32 {
|
||||
if any.val > 0 {
|
||||
return uint32(any.val)
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *floatAny) ToUint64() uint64 {
|
||||
if any.val > 0 {
|
||||
return uint64(any.val)
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *floatAny) ToFloat32() float32 {
|
||||
return float32(any.val)
|
||||
}
|
||||
|
||||
func (any *floatAny) ToFloat64() float64 {
|
||||
return any.val
|
||||
}
|
||||
|
||||
func (any *floatAny) ToString() string {
|
||||
return strconv.FormatFloat(any.val, 'E', -1, 64)
|
||||
}
|
||||
|
||||
func (any *floatAny) WriteTo(stream *Stream) {
|
||||
stream.WriteFloat64(any.val)
|
||||
}
|
||||
|
||||
func (any *floatAny) GetInterface() interface{} {
|
||||
return any.val
|
||||
}
|
|
@ -0,0 +1,74 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"strconv"
|
||||
)
|
||||
|
||||
type int32Any struct {
|
||||
baseAny
|
||||
val int32
|
||||
}
|
||||
|
||||
func (any *int32Any) LastError() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *int32Any) ValueType() ValueType {
|
||||
return NumberValue
|
||||
}
|
||||
|
||||
func (any *int32Any) MustBeValid() Any {
|
||||
return any
|
||||
}
|
||||
|
||||
func (any *int32Any) ToBool() bool {
|
||||
return any.val != 0
|
||||
}
|
||||
|
||||
func (any *int32Any) ToInt() int {
|
||||
return int(any.val)
|
||||
}
|
||||
|
||||
func (any *int32Any) ToInt32() int32 {
|
||||
return any.val
|
||||
}
|
||||
|
||||
func (any *int32Any) ToInt64() int64 {
|
||||
return int64(any.val)
|
||||
}
|
||||
|
||||
func (any *int32Any) ToUint() uint {
|
||||
return uint(any.val)
|
||||
}
|
||||
|
||||
func (any *int32Any) ToUint32() uint32 {
|
||||
return uint32(any.val)
|
||||
}
|
||||
|
||||
func (any *int32Any) ToUint64() uint64 {
|
||||
return uint64(any.val)
|
||||
}
|
||||
|
||||
func (any *int32Any) ToFloat32() float32 {
|
||||
return float32(any.val)
|
||||
}
|
||||
|
||||
func (any *int32Any) ToFloat64() float64 {
|
||||
return float64(any.val)
|
||||
}
|
||||
|
||||
func (any *int32Any) ToString() string {
|
||||
return strconv.FormatInt(int64(any.val), 10)
|
||||
}
|
||||
|
||||
func (any *int32Any) WriteTo(stream *Stream) {
|
||||
stream.WriteInt32(any.val)
|
||||
}
|
||||
|
||||
func (any *int32Any) Parse() *Iterator {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *int32Any) GetInterface() interface{} {
|
||||
return any.val
|
||||
}
|
|
@ -0,0 +1,74 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"strconv"
|
||||
)
|
||||
|
||||
type int64Any struct {
|
||||
baseAny
|
||||
val int64
|
||||
}
|
||||
|
||||
func (any *int64Any) LastError() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *int64Any) ValueType() ValueType {
|
||||
return NumberValue
|
||||
}
|
||||
|
||||
func (any *int64Any) MustBeValid() Any {
|
||||
return any
|
||||
}
|
||||
|
||||
func (any *int64Any) ToBool() bool {
|
||||
return any.val != 0
|
||||
}
|
||||
|
||||
func (any *int64Any) ToInt() int {
|
||||
return int(any.val)
|
||||
}
|
||||
|
||||
func (any *int64Any) ToInt32() int32 {
|
||||
return int32(any.val)
|
||||
}
|
||||
|
||||
func (any *int64Any) ToInt64() int64 {
|
||||
return any.val
|
||||
}
|
||||
|
||||
func (any *int64Any) ToUint() uint {
|
||||
return uint(any.val)
|
||||
}
|
||||
|
||||
func (any *int64Any) ToUint32() uint32 {
|
||||
return uint32(any.val)
|
||||
}
|
||||
|
||||
func (any *int64Any) ToUint64() uint64 {
|
||||
return uint64(any.val)
|
||||
}
|
||||
|
||||
func (any *int64Any) ToFloat32() float32 {
|
||||
return float32(any.val)
|
||||
}
|
||||
|
||||
func (any *int64Any) ToFloat64() float64 {
|
||||
return float64(any.val)
|
||||
}
|
||||
|
||||
func (any *int64Any) ToString() string {
|
||||
return strconv.FormatInt(any.val, 10)
|
||||
}
|
||||
|
||||
func (any *int64Any) WriteTo(stream *Stream) {
|
||||
stream.WriteInt64(any.val)
|
||||
}
|
||||
|
||||
func (any *int64Any) Parse() *Iterator {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *int64Any) GetInterface() interface{} {
|
||||
return any.val
|
||||
}
|
|
@ -0,0 +1,82 @@
|
|||
package jsoniter
|
||||
|
||||
import "fmt"
|
||||
|
||||
type invalidAny struct {
|
||||
baseAny
|
||||
err error
|
||||
}
|
||||
|
||||
func newInvalidAny(path []interface{}) *invalidAny {
|
||||
return &invalidAny{baseAny{}, fmt.Errorf("%v not found", path)}
|
||||
}
|
||||
|
||||
func (any *invalidAny) LastError() error {
|
||||
return any.err
|
||||
}
|
||||
|
||||
func (any *invalidAny) ValueType() ValueType {
|
||||
return InvalidValue
|
||||
}
|
||||
|
||||
func (any *invalidAny) MustBeValid() Any {
|
||||
panic(any.err)
|
||||
}
|
||||
|
||||
func (any *invalidAny) ToBool() bool {
|
||||
return false
|
||||
}
|
||||
|
||||
func (any *invalidAny) ToInt() int {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *invalidAny) ToInt32() int32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *invalidAny) ToInt64() int64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *invalidAny) ToUint() uint {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *invalidAny) ToUint32() uint32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *invalidAny) ToUint64() uint64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *invalidAny) ToFloat32() float32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *invalidAny) ToFloat64() float64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *invalidAny) ToString() string {
|
||||
return ""
|
||||
}
|
||||
|
||||
func (any *invalidAny) WriteTo(stream *Stream) {
|
||||
}
|
||||
|
||||
func (any *invalidAny) Get(path ...interface{}) Any {
|
||||
if any.err == nil {
|
||||
return &invalidAny{baseAny{}, fmt.Errorf("get %v from invalid", path)}
|
||||
}
|
||||
return &invalidAny{baseAny{}, fmt.Errorf("%v, get %v from invalid", any.err, path)}
|
||||
}
|
||||
|
||||
func (any *invalidAny) Parse() *Iterator {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *invalidAny) GetInterface() interface{} {
|
||||
return nil
|
||||
}
|
|
@ -0,0 +1,69 @@
|
|||
package jsoniter
|
||||
|
||||
type nilAny struct {
|
||||
baseAny
|
||||
}
|
||||
|
||||
func (any *nilAny) LastError() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *nilAny) ValueType() ValueType {
|
||||
return NilValue
|
||||
}
|
||||
|
||||
func (any *nilAny) MustBeValid() Any {
|
||||
return any
|
||||
}
|
||||
|
||||
func (any *nilAny) ToBool() bool {
|
||||
return false
|
||||
}
|
||||
|
||||
func (any *nilAny) ToInt() int {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *nilAny) ToInt32() int32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *nilAny) ToInt64() int64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *nilAny) ToUint() uint {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *nilAny) ToUint32() uint32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *nilAny) ToUint64() uint64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *nilAny) ToFloat32() float32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *nilAny) ToFloat64() float64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *nilAny) ToString() string {
|
||||
return ""
|
||||
}
|
||||
|
||||
func (any *nilAny) WriteTo(stream *Stream) {
|
||||
stream.WriteNil()
|
||||
}
|
||||
|
||||
func (any *nilAny) Parse() *Iterator {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *nilAny) GetInterface() interface{} {
|
||||
return nil
|
||||
}
|
|
@ -0,0 +1,123 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"io"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
type numberLazyAny struct {
|
||||
baseAny
|
||||
cfg *frozenConfig
|
||||
buf []byte
|
||||
err error
|
||||
}
|
||||
|
||||
func (any *numberLazyAny) ValueType() ValueType {
|
||||
return NumberValue
|
||||
}
|
||||
|
||||
func (any *numberLazyAny) MustBeValid() Any {
|
||||
return any
|
||||
}
|
||||
|
||||
func (any *numberLazyAny) LastError() error {
|
||||
return any.err
|
||||
}
|
||||
|
||||
func (any *numberLazyAny) ToBool() bool {
|
||||
return any.ToFloat64() != 0
|
||||
}
|
||||
|
||||
func (any *numberLazyAny) ToInt() int {
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
val := iter.ReadInt()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
any.err = iter.Error
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
func (any *numberLazyAny) ToInt32() int32 {
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
val := iter.ReadInt32()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
any.err = iter.Error
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
func (any *numberLazyAny) ToInt64() int64 {
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
val := iter.ReadInt64()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
any.err = iter.Error
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
func (any *numberLazyAny) ToUint() uint {
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
val := iter.ReadUint()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
any.err = iter.Error
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
func (any *numberLazyAny) ToUint32() uint32 {
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
val := iter.ReadUint32()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
any.err = iter.Error
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
func (any *numberLazyAny) ToUint64() uint64 {
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
val := iter.ReadUint64()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
any.err = iter.Error
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
func (any *numberLazyAny) ToFloat32() float32 {
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
val := iter.ReadFloat32()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
any.err = iter.Error
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
func (any *numberLazyAny) ToFloat64() float64 {
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
val := iter.ReadFloat64()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
any.err = iter.Error
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
func (any *numberLazyAny) ToString() string {
|
||||
return *(*string)(unsafe.Pointer(&any.buf))
|
||||
}
|
||||
|
||||
func (any *numberLazyAny) WriteTo(stream *Stream) {
|
||||
stream.Write(any.buf)
|
||||
}
|
||||
|
||||
func (any *numberLazyAny) GetInterface() interface{} {
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
return iter.Read()
|
||||
}
|
|
@ -0,0 +1,374 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"reflect"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
type objectLazyAny struct {
|
||||
baseAny
|
||||
cfg *frozenConfig
|
||||
buf []byte
|
||||
err error
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) ValueType() ValueType {
|
||||
return ObjectValue
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) MustBeValid() Any {
|
||||
return any
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) LastError() error {
|
||||
return any.err
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) ToBool() bool {
|
||||
return true
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) ToInt() int {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) ToInt32() int32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) ToInt64() int64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) ToUint() uint {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) ToUint32() uint32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) ToUint64() uint64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) ToFloat32() float32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) ToFloat64() float64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) ToString() string {
|
||||
return *(*string)(unsafe.Pointer(&any.buf))
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) ToVal(obj interface{}) {
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
iter.ReadVal(obj)
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) Get(path ...interface{}) Any {
|
||||
if len(path) == 0 {
|
||||
return any
|
||||
}
|
||||
switch firstPath := path[0].(type) {
|
||||
case string:
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
valueBytes := locateObjectField(iter, firstPath)
|
||||
if valueBytes == nil {
|
||||
return newInvalidAny(path)
|
||||
}
|
||||
iter.ResetBytes(valueBytes)
|
||||
return locatePath(iter, path[1:])
|
||||
case int32:
|
||||
if '*' == firstPath {
|
||||
mappedAll := map[string]Any{}
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
iter.ReadMapCB(func(iter *Iterator, field string) bool {
|
||||
mapped := locatePath(iter, path[1:])
|
||||
if mapped.ValueType() != InvalidValue {
|
||||
mappedAll[field] = mapped
|
||||
}
|
||||
return true
|
||||
})
|
||||
return wrapMap(mappedAll)
|
||||
}
|
||||
return newInvalidAny(path)
|
||||
default:
|
||||
return newInvalidAny(path)
|
||||
}
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) Keys() []string {
|
||||
keys := []string{}
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
iter.ReadMapCB(func(iter *Iterator, field string) bool {
|
||||
iter.Skip()
|
||||
keys = append(keys, field)
|
||||
return true
|
||||
})
|
||||
return keys
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) Size() int {
|
||||
size := 0
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
iter.ReadObjectCB(func(iter *Iterator, field string) bool {
|
||||
iter.Skip()
|
||||
size++
|
||||
return true
|
||||
})
|
||||
return size
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) WriteTo(stream *Stream) {
|
||||
stream.Write(any.buf)
|
||||
}
|
||||
|
||||
func (any *objectLazyAny) GetInterface() interface{} {
|
||||
iter := any.cfg.BorrowIterator(any.buf)
|
||||
defer any.cfg.ReturnIterator(iter)
|
||||
return iter.Read()
|
||||
}
|
||||
|
||||
type objectAny struct {
|
||||
baseAny
|
||||
err error
|
||||
val reflect.Value
|
||||
}
|
||||
|
||||
func wrapStruct(val interface{}) *objectAny {
|
||||
return &objectAny{baseAny{}, nil, reflect.ValueOf(val)}
|
||||
}
|
||||
|
||||
func (any *objectAny) ValueType() ValueType {
|
||||
return ObjectValue
|
||||
}
|
||||
|
||||
func (any *objectAny) MustBeValid() Any {
|
||||
return any
|
||||
}
|
||||
|
||||
func (any *objectAny) Parse() *Iterator {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *objectAny) LastError() error {
|
||||
return any.err
|
||||
}
|
||||
|
||||
func (any *objectAny) ToBool() bool {
|
||||
return any.val.NumField() != 0
|
||||
}
|
||||
|
||||
func (any *objectAny) ToInt() int {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectAny) ToInt32() int32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectAny) ToInt64() int64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectAny) ToUint() uint {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectAny) ToUint32() uint32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectAny) ToUint64() uint64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectAny) ToFloat32() float32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectAny) ToFloat64() float64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *objectAny) ToString() string {
|
||||
str, err := MarshalToString(any.val.Interface())
|
||||
any.err = err
|
||||
return str
|
||||
}
|
||||
|
||||
func (any *objectAny) Get(path ...interface{}) Any {
|
||||
if len(path) == 0 {
|
||||
return any
|
||||
}
|
||||
switch firstPath := path[0].(type) {
|
||||
case string:
|
||||
field := any.val.FieldByName(firstPath)
|
||||
if !field.IsValid() {
|
||||
return newInvalidAny(path)
|
||||
}
|
||||
return Wrap(field.Interface())
|
||||
case int32:
|
||||
if '*' == firstPath {
|
||||
mappedAll := map[string]Any{}
|
||||
for i := 0; i < any.val.NumField(); i++ {
|
||||
field := any.val.Field(i)
|
||||
if field.CanInterface() {
|
||||
mapped := Wrap(field.Interface()).Get(path[1:]...)
|
||||
if mapped.ValueType() != InvalidValue {
|
||||
mappedAll[any.val.Type().Field(i).Name] = mapped
|
||||
}
|
||||
}
|
||||
}
|
||||
return wrapMap(mappedAll)
|
||||
}
|
||||
return newInvalidAny(path)
|
||||
default:
|
||||
return newInvalidAny(path)
|
||||
}
|
||||
}
|
||||
|
||||
func (any *objectAny) Keys() []string {
|
||||
keys := make([]string, 0, any.val.NumField())
|
||||
for i := 0; i < any.val.NumField(); i++ {
|
||||
keys = append(keys, any.val.Type().Field(i).Name)
|
||||
}
|
||||
return keys
|
||||
}
|
||||
|
||||
func (any *objectAny) Size() int {
|
||||
return any.val.NumField()
|
||||
}
|
||||
|
||||
func (any *objectAny) WriteTo(stream *Stream) {
|
||||
stream.WriteVal(any.val)
|
||||
}
|
||||
|
||||
func (any *objectAny) GetInterface() interface{} {
|
||||
return any.val.Interface()
|
||||
}
|
||||
|
||||
type mapAny struct {
|
||||
baseAny
|
||||
err error
|
||||
val reflect.Value
|
||||
}
|
||||
|
||||
func wrapMap(val interface{}) *mapAny {
|
||||
return &mapAny{baseAny{}, nil, reflect.ValueOf(val)}
|
||||
}
|
||||
|
||||
func (any *mapAny) ValueType() ValueType {
|
||||
return ObjectValue
|
||||
}
|
||||
|
||||
func (any *mapAny) MustBeValid() Any {
|
||||
return any
|
||||
}
|
||||
|
||||
func (any *mapAny) Parse() *Iterator {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *mapAny) LastError() error {
|
||||
return any.err
|
||||
}
|
||||
|
||||
func (any *mapAny) ToBool() bool {
|
||||
return true
|
||||
}
|
||||
|
||||
func (any *mapAny) ToInt() int {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *mapAny) ToInt32() int32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *mapAny) ToInt64() int64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *mapAny) ToUint() uint {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *mapAny) ToUint32() uint32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *mapAny) ToUint64() uint64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *mapAny) ToFloat32() float32 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *mapAny) ToFloat64() float64 {
|
||||
return 0
|
||||
}
|
||||
|
||||
func (any *mapAny) ToString() string {
|
||||
str, err := MarshalToString(any.val.Interface())
|
||||
any.err = err
|
||||
return str
|
||||
}
|
||||
|
||||
func (any *mapAny) Get(path ...interface{}) Any {
|
||||
if len(path) == 0 {
|
||||
return any
|
||||
}
|
||||
switch firstPath := path[0].(type) {
|
||||
case int32:
|
||||
if '*' == firstPath {
|
||||
mappedAll := map[string]Any{}
|
||||
for _, key := range any.val.MapKeys() {
|
||||
keyAsStr := key.String()
|
||||
element := Wrap(any.val.MapIndex(key).Interface())
|
||||
mapped := element.Get(path[1:]...)
|
||||
if mapped.ValueType() != InvalidValue {
|
||||
mappedAll[keyAsStr] = mapped
|
||||
}
|
||||
}
|
||||
return wrapMap(mappedAll)
|
||||
}
|
||||
return newInvalidAny(path)
|
||||
default:
|
||||
value := any.val.MapIndex(reflect.ValueOf(firstPath))
|
||||
if !value.IsValid() {
|
||||
return newInvalidAny(path)
|
||||
}
|
||||
return Wrap(value.Interface())
|
||||
}
|
||||
}
|
||||
|
||||
func (any *mapAny) Keys() []string {
|
||||
keys := make([]string, 0, any.val.Len())
|
||||
for _, key := range any.val.MapKeys() {
|
||||
keys = append(keys, key.String())
|
||||
}
|
||||
return keys
|
||||
}
|
||||
|
||||
func (any *mapAny) Size() int {
|
||||
return any.val.Len()
|
||||
}
|
||||
|
||||
func (any *mapAny) WriteTo(stream *Stream) {
|
||||
stream.WriteVal(any.val)
|
||||
}
|
||||
|
||||
func (any *mapAny) GetInterface() interface{} {
|
||||
return any.val.Interface()
|
||||
}
|
|
@ -0,0 +1,166 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strconv"
|
||||
)
|
||||
|
||||
type stringAny struct {
|
||||
baseAny
|
||||
val string
|
||||
}
|
||||
|
||||
func (any *stringAny) Get(path ...interface{}) Any {
|
||||
if len(path) == 0 {
|
||||
return any
|
||||
}
|
||||
return &invalidAny{baseAny{}, fmt.Errorf("GetIndex %v from simple value", path)}
|
||||
}
|
||||
|
||||
func (any *stringAny) Parse() *Iterator {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *stringAny) ValueType() ValueType {
|
||||
return StringValue
|
||||
}
|
||||
|
||||
func (any *stringAny) MustBeValid() Any {
|
||||
return any
|
||||
}
|
||||
|
||||
func (any *stringAny) LastError() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *stringAny) ToBool() bool {
|
||||
str := any.ToString()
|
||||
if str == "0" {
|
||||
return false
|
||||
}
|
||||
for _, c := range str {
|
||||
switch c {
|
||||
case ' ', '\n', '\r', '\t':
|
||||
default:
|
||||
return true
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (any *stringAny) ToInt() int {
|
||||
return int(any.ToInt64())
|
||||
|
||||
}
|
||||
|
||||
func (any *stringAny) ToInt32() int32 {
|
||||
return int32(any.ToInt64())
|
||||
}
|
||||
|
||||
func (any *stringAny) ToInt64() int64 {
|
||||
if any.val == "" {
|
||||
return 0
|
||||
}
|
||||
|
||||
flag := 1
|
||||
startPos := 0
|
||||
if any.val[0] == '+' || any.val[0] == '-' {
|
||||
startPos = 1
|
||||
}
|
||||
|
||||
if any.val[0] == '-' {
|
||||
flag = -1
|
||||
}
|
||||
|
||||
endPos := startPos
|
||||
for i := startPos; i < len(any.val); i++ {
|
||||
if any.val[i] >= '0' && any.val[i] <= '9' {
|
||||
endPos = i + 1
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
parsed, _ := strconv.ParseInt(any.val[startPos:endPos], 10, 64)
|
||||
return int64(flag) * parsed
|
||||
}
|
||||
|
||||
func (any *stringAny) ToUint() uint {
|
||||
return uint(any.ToUint64())
|
||||
}
|
||||
|
||||
func (any *stringAny) ToUint32() uint32 {
|
||||
return uint32(any.ToUint64())
|
||||
}
|
||||
|
||||
func (any *stringAny) ToUint64() uint64 {
|
||||
if any.val == "" {
|
||||
return 0
|
||||
}
|
||||
|
||||
startPos := 0
|
||||
|
||||
if any.val[0] == '-' {
|
||||
return 0
|
||||
}
|
||||
if any.val[0] == '+' {
|
||||
startPos = 1
|
||||
}
|
||||
|
||||
endPos := startPos
|
||||
for i := startPos; i < len(any.val); i++ {
|
||||
if any.val[i] >= '0' && any.val[i] <= '9' {
|
||||
endPos = i + 1
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
parsed, _ := strconv.ParseUint(any.val[startPos:endPos], 10, 64)
|
||||
return parsed
|
||||
}
|
||||
|
||||
func (any *stringAny) ToFloat32() float32 {
|
||||
return float32(any.ToFloat64())
|
||||
}
|
||||
|
||||
func (any *stringAny) ToFloat64() float64 {
|
||||
if len(any.val) == 0 {
|
||||
return 0
|
||||
}
|
||||
|
||||
// first char invalid
|
||||
if any.val[0] != '+' && any.val[0] != '-' && (any.val[0] > '9' || any.val[0] < '0') {
|
||||
return 0
|
||||
}
|
||||
|
||||
// extract valid num expression from string
|
||||
// eg 123true => 123, -12.12xxa => -12.12
|
||||
endPos := 1
|
||||
for i := 1; i < len(any.val); i++ {
|
||||
if any.val[i] == '.' || any.val[i] == 'e' || any.val[i] == 'E' || any.val[i] == '+' || any.val[i] == '-' {
|
||||
endPos = i + 1
|
||||
continue
|
||||
}
|
||||
|
||||
// end position is the first char which is not digit
|
||||
if any.val[i] >= '0' && any.val[i] <= '9' {
|
||||
endPos = i + 1
|
||||
} else {
|
||||
endPos = i
|
||||
break
|
||||
}
|
||||
}
|
||||
parsed, _ := strconv.ParseFloat(any.val[:endPos], 64)
|
||||
return parsed
|
||||
}
|
||||
|
||||
func (any *stringAny) ToString() string {
|
||||
return any.val
|
||||
}
|
||||
|
||||
func (any *stringAny) WriteTo(stream *Stream) {
|
||||
stream.WriteString(any.val)
|
||||
}
|
||||
|
||||
func (any *stringAny) GetInterface() interface{} {
|
||||
return any.val
|
||||
}
|
|
@ -0,0 +1,74 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"strconv"
|
||||
)
|
||||
|
||||
type uint32Any struct {
|
||||
baseAny
|
||||
val uint32
|
||||
}
|
||||
|
||||
func (any *uint32Any) LastError() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *uint32Any) ValueType() ValueType {
|
||||
return NumberValue
|
||||
}
|
||||
|
||||
func (any *uint32Any) MustBeValid() Any {
|
||||
return any
|
||||
}
|
||||
|
||||
func (any *uint32Any) ToBool() bool {
|
||||
return any.val != 0
|
||||
}
|
||||
|
||||
func (any *uint32Any) ToInt() int {
|
||||
return int(any.val)
|
||||
}
|
||||
|
||||
func (any *uint32Any) ToInt32() int32 {
|
||||
return int32(any.val)
|
||||
}
|
||||
|
||||
func (any *uint32Any) ToInt64() int64 {
|
||||
return int64(any.val)
|
||||
}
|
||||
|
||||
func (any *uint32Any) ToUint() uint {
|
||||
return uint(any.val)
|
||||
}
|
||||
|
||||
func (any *uint32Any) ToUint32() uint32 {
|
||||
return any.val
|
||||
}
|
||||
|
||||
func (any *uint32Any) ToUint64() uint64 {
|
||||
return uint64(any.val)
|
||||
}
|
||||
|
||||
func (any *uint32Any) ToFloat32() float32 {
|
||||
return float32(any.val)
|
||||
}
|
||||
|
||||
func (any *uint32Any) ToFloat64() float64 {
|
||||
return float64(any.val)
|
||||
}
|
||||
|
||||
func (any *uint32Any) ToString() string {
|
||||
return strconv.FormatInt(int64(any.val), 10)
|
||||
}
|
||||
|
||||
func (any *uint32Any) WriteTo(stream *Stream) {
|
||||
stream.WriteUint32(any.val)
|
||||
}
|
||||
|
||||
func (any *uint32Any) Parse() *Iterator {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *uint32Any) GetInterface() interface{} {
|
||||
return any.val
|
||||
}
|
|
@ -0,0 +1,74 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"strconv"
|
||||
)
|
||||
|
||||
type uint64Any struct {
|
||||
baseAny
|
||||
val uint64
|
||||
}
|
||||
|
||||
func (any *uint64Any) LastError() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *uint64Any) ValueType() ValueType {
|
||||
return NumberValue
|
||||
}
|
||||
|
||||
func (any *uint64Any) MustBeValid() Any {
|
||||
return any
|
||||
}
|
||||
|
||||
func (any *uint64Any) ToBool() bool {
|
||||
return any.val != 0
|
||||
}
|
||||
|
||||
func (any *uint64Any) ToInt() int {
|
||||
return int(any.val)
|
||||
}
|
||||
|
||||
func (any *uint64Any) ToInt32() int32 {
|
||||
return int32(any.val)
|
||||
}
|
||||
|
||||
func (any *uint64Any) ToInt64() int64 {
|
||||
return int64(any.val)
|
||||
}
|
||||
|
||||
func (any *uint64Any) ToUint() uint {
|
||||
return uint(any.val)
|
||||
}
|
||||
|
||||
func (any *uint64Any) ToUint32() uint32 {
|
||||
return uint32(any.val)
|
||||
}
|
||||
|
||||
func (any *uint64Any) ToUint64() uint64 {
|
||||
return any.val
|
||||
}
|
||||
|
||||
func (any *uint64Any) ToFloat32() float32 {
|
||||
return float32(any.val)
|
||||
}
|
||||
|
||||
func (any *uint64Any) ToFloat64() float64 {
|
||||
return float64(any.val)
|
||||
}
|
||||
|
||||
func (any *uint64Any) ToString() string {
|
||||
return strconv.FormatUint(any.val, 10)
|
||||
}
|
||||
|
||||
func (any *uint64Any) WriteTo(stream *Stream) {
|
||||
stream.WriteUint64(any.val)
|
||||
}
|
||||
|
||||
func (any *uint64Any) Parse() *Iterator {
|
||||
return nil
|
||||
}
|
||||
|
||||
func (any *uint64Any) GetInterface() interface{} {
|
||||
return any.val
|
||||
}
|
|
@ -0,0 +1,12 @@
|
|||
#!/bin/bash
|
||||
set -e
|
||||
set -x
|
||||
|
||||
if [ ! -d /tmp/build-golang/src/github.com/json-iterator ]; then
|
||||
mkdir -p /tmp/build-golang/src/github.com/json-iterator
|
||||
ln -s $PWD /tmp/build-golang/src/github.com/json-iterator/go
|
||||
fi
|
||||
export GOPATH=/tmp/build-golang
|
||||
go get -u github.com/golang/dep/cmd/dep
|
||||
cd /tmp/build-golang/src/github.com/json-iterator/go
|
||||
exec $GOPATH/bin/dep ensure -update
|
|
@ -0,0 +1,375 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"io"
|
||||
"reflect"
|
||||
"sync"
|
||||
"unsafe"
|
||||
|
||||
"github.com/modern-go/concurrent"
|
||||
"github.com/modern-go/reflect2"
|
||||
)
|
||||
|
||||
// Config customize how the API should behave.
|
||||
// The API is created from Config by Froze.
|
||||
type Config struct {
|
||||
IndentionStep int
|
||||
MarshalFloatWith6Digits bool
|
||||
EscapeHTML bool
|
||||
SortMapKeys bool
|
||||
UseNumber bool
|
||||
DisallowUnknownFields bool
|
||||
TagKey string
|
||||
OnlyTaggedField bool
|
||||
ValidateJsonRawMessage bool
|
||||
ObjectFieldMustBeSimpleString bool
|
||||
CaseSensitive bool
|
||||
}
|
||||
|
||||
// API the public interface of this package.
|
||||
// Primary Marshal and Unmarshal.
|
||||
type API interface {
|
||||
IteratorPool
|
||||
StreamPool
|
||||
MarshalToString(v interface{}) (string, error)
|
||||
Marshal(v interface{}) ([]byte, error)
|
||||
MarshalIndent(v interface{}, prefix, indent string) ([]byte, error)
|
||||
UnmarshalFromString(str string, v interface{}) error
|
||||
Unmarshal(data []byte, v interface{}) error
|
||||
Get(data []byte, path ...interface{}) Any
|
||||
NewEncoder(writer io.Writer) *Encoder
|
||||
NewDecoder(reader io.Reader) *Decoder
|
||||
Valid(data []byte) bool
|
||||
RegisterExtension(extension Extension)
|
||||
DecoderOf(typ reflect2.Type) ValDecoder
|
||||
EncoderOf(typ reflect2.Type) ValEncoder
|
||||
}
|
||||
|
||||
// ConfigDefault the default API
|
||||
var ConfigDefault = Config{
|
||||
EscapeHTML: true,
|
||||
}.Froze()
|
||||
|
||||
// ConfigCompatibleWithStandardLibrary tries to be 100% compatible with standard library behavior
|
||||
var ConfigCompatibleWithStandardLibrary = Config{
|
||||
EscapeHTML: true,
|
||||
SortMapKeys: true,
|
||||
ValidateJsonRawMessage: true,
|
||||
}.Froze()
|
||||
|
||||
// ConfigFastest marshals float with only 6 digits precision
|
||||
var ConfigFastest = Config{
|
||||
EscapeHTML: false,
|
||||
MarshalFloatWith6Digits: true, // will lose precession
|
||||
ObjectFieldMustBeSimpleString: true, // do not unescape object field
|
||||
}.Froze()
|
||||
|
||||
type frozenConfig struct {
|
||||
configBeforeFrozen Config
|
||||
sortMapKeys bool
|
||||
indentionStep int
|
||||
objectFieldMustBeSimpleString bool
|
||||
onlyTaggedField bool
|
||||
disallowUnknownFields bool
|
||||
decoderCache *concurrent.Map
|
||||
encoderCache *concurrent.Map
|
||||
encoderExtension Extension
|
||||
decoderExtension Extension
|
||||
extraExtensions []Extension
|
||||
streamPool *sync.Pool
|
||||
iteratorPool *sync.Pool
|
||||
caseSensitive bool
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) initCache() {
|
||||
cfg.decoderCache = concurrent.NewMap()
|
||||
cfg.encoderCache = concurrent.NewMap()
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) addDecoderToCache(cacheKey uintptr, decoder ValDecoder) {
|
||||
cfg.decoderCache.Store(cacheKey, decoder)
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) addEncoderToCache(cacheKey uintptr, encoder ValEncoder) {
|
||||
cfg.encoderCache.Store(cacheKey, encoder)
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) getDecoderFromCache(cacheKey uintptr) ValDecoder {
|
||||
decoder, found := cfg.decoderCache.Load(cacheKey)
|
||||
if found {
|
||||
return decoder.(ValDecoder)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) getEncoderFromCache(cacheKey uintptr) ValEncoder {
|
||||
encoder, found := cfg.encoderCache.Load(cacheKey)
|
||||
if found {
|
||||
return encoder.(ValEncoder)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
var cfgCache = concurrent.NewMap()
|
||||
|
||||
func getFrozenConfigFromCache(cfg Config) *frozenConfig {
|
||||
obj, found := cfgCache.Load(cfg)
|
||||
if found {
|
||||
return obj.(*frozenConfig)
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func addFrozenConfigToCache(cfg Config, frozenConfig *frozenConfig) {
|
||||
cfgCache.Store(cfg, frozenConfig)
|
||||
}
|
||||
|
||||
// Froze forge API from config
|
||||
func (cfg Config) Froze() API {
|
||||
api := &frozenConfig{
|
||||
sortMapKeys: cfg.SortMapKeys,
|
||||
indentionStep: cfg.IndentionStep,
|
||||
objectFieldMustBeSimpleString: cfg.ObjectFieldMustBeSimpleString,
|
||||
onlyTaggedField: cfg.OnlyTaggedField,
|
||||
disallowUnknownFields: cfg.DisallowUnknownFields,
|
||||
caseSensitive: cfg.CaseSensitive,
|
||||
}
|
||||
api.streamPool = &sync.Pool{
|
||||
New: func() interface{} {
|
||||
return NewStream(api, nil, 512)
|
||||
},
|
||||
}
|
||||
api.iteratorPool = &sync.Pool{
|
||||
New: func() interface{} {
|
||||
return NewIterator(api)
|
||||
},
|
||||
}
|
||||
api.initCache()
|
||||
encoderExtension := EncoderExtension{}
|
||||
decoderExtension := DecoderExtension{}
|
||||
if cfg.MarshalFloatWith6Digits {
|
||||
api.marshalFloatWith6Digits(encoderExtension)
|
||||
}
|
||||
if cfg.EscapeHTML {
|
||||
api.escapeHTML(encoderExtension)
|
||||
}
|
||||
if cfg.UseNumber {
|
||||
api.useNumber(decoderExtension)
|
||||
}
|
||||
if cfg.ValidateJsonRawMessage {
|
||||
api.validateJsonRawMessage(encoderExtension)
|
||||
}
|
||||
api.encoderExtension = encoderExtension
|
||||
api.decoderExtension = decoderExtension
|
||||
api.configBeforeFrozen = cfg
|
||||
return api
|
||||
}
|
||||
|
||||
func (cfg Config) frozeWithCacheReuse(extraExtensions []Extension) *frozenConfig {
|
||||
api := getFrozenConfigFromCache(cfg)
|
||||
if api != nil {
|
||||
return api
|
||||
}
|
||||
api = cfg.Froze().(*frozenConfig)
|
||||
for _, extension := range extraExtensions {
|
||||
api.RegisterExtension(extension)
|
||||
}
|
||||
addFrozenConfigToCache(cfg, api)
|
||||
return api
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) validateJsonRawMessage(extension EncoderExtension) {
|
||||
encoder := &funcEncoder{func(ptr unsafe.Pointer, stream *Stream) {
|
||||
rawMessage := *(*json.RawMessage)(ptr)
|
||||
iter := cfg.BorrowIterator([]byte(rawMessage))
|
||||
defer cfg.ReturnIterator(iter)
|
||||
iter.Read()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
stream.WriteRaw("null")
|
||||
} else {
|
||||
stream.WriteRaw(string(rawMessage))
|
||||
}
|
||||
}, func(ptr unsafe.Pointer) bool {
|
||||
return len(*((*json.RawMessage)(ptr))) == 0
|
||||
}}
|
||||
extension[reflect2.TypeOfPtr((*json.RawMessage)(nil)).Elem()] = encoder
|
||||
extension[reflect2.TypeOfPtr((*RawMessage)(nil)).Elem()] = encoder
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) useNumber(extension DecoderExtension) {
|
||||
extension[reflect2.TypeOfPtr((*interface{})(nil)).Elem()] = &funcDecoder{func(ptr unsafe.Pointer, iter *Iterator) {
|
||||
exitingValue := *((*interface{})(ptr))
|
||||
if exitingValue != nil && reflect.TypeOf(exitingValue).Kind() == reflect.Ptr {
|
||||
iter.ReadVal(exitingValue)
|
||||
return
|
||||
}
|
||||
if iter.WhatIsNext() == NumberValue {
|
||||
*((*interface{})(ptr)) = json.Number(iter.readNumberAsString())
|
||||
} else {
|
||||
*((*interface{})(ptr)) = iter.Read()
|
||||
}
|
||||
}}
|
||||
}
|
||||
func (cfg *frozenConfig) getTagKey() string {
|
||||
tagKey := cfg.configBeforeFrozen.TagKey
|
||||
if tagKey == "" {
|
||||
return "json"
|
||||
}
|
||||
return tagKey
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) RegisterExtension(extension Extension) {
|
||||
cfg.extraExtensions = append(cfg.extraExtensions, extension)
|
||||
copied := cfg.configBeforeFrozen
|
||||
cfg.configBeforeFrozen = copied
|
||||
}
|
||||
|
||||
type lossyFloat32Encoder struct {
|
||||
}
|
||||
|
||||
func (encoder *lossyFloat32Encoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteFloat32Lossy(*((*float32)(ptr)))
|
||||
}
|
||||
|
||||
func (encoder *lossyFloat32Encoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*float32)(ptr)) == 0
|
||||
}
|
||||
|
||||
type lossyFloat64Encoder struct {
|
||||
}
|
||||
|
||||
func (encoder *lossyFloat64Encoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteFloat64Lossy(*((*float64)(ptr)))
|
||||
}
|
||||
|
||||
func (encoder *lossyFloat64Encoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*float64)(ptr)) == 0
|
||||
}
|
||||
|
||||
// EnableLossyFloatMarshalling keeps 10**(-6) precision
|
||||
// for float variables for better performance.
|
||||
func (cfg *frozenConfig) marshalFloatWith6Digits(extension EncoderExtension) {
|
||||
// for better performance
|
||||
extension[reflect2.TypeOfPtr((*float32)(nil)).Elem()] = &lossyFloat32Encoder{}
|
||||
extension[reflect2.TypeOfPtr((*float64)(nil)).Elem()] = &lossyFloat64Encoder{}
|
||||
}
|
||||
|
||||
type htmlEscapedStringEncoder struct {
|
||||
}
|
||||
|
||||
func (encoder *htmlEscapedStringEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
str := *((*string)(ptr))
|
||||
stream.WriteStringWithHTMLEscaped(str)
|
||||
}
|
||||
|
||||
func (encoder *htmlEscapedStringEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*string)(ptr)) == ""
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) escapeHTML(encoderExtension EncoderExtension) {
|
||||
encoderExtension[reflect2.TypeOfPtr((*string)(nil)).Elem()] = &htmlEscapedStringEncoder{}
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) cleanDecoders() {
|
||||
typeDecoders = map[string]ValDecoder{}
|
||||
fieldDecoders = map[string]ValDecoder{}
|
||||
*cfg = *(cfg.configBeforeFrozen.Froze().(*frozenConfig))
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) cleanEncoders() {
|
||||
typeEncoders = map[string]ValEncoder{}
|
||||
fieldEncoders = map[string]ValEncoder{}
|
||||
*cfg = *(cfg.configBeforeFrozen.Froze().(*frozenConfig))
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) MarshalToString(v interface{}) (string, error) {
|
||||
stream := cfg.BorrowStream(nil)
|
||||
defer cfg.ReturnStream(stream)
|
||||
stream.WriteVal(v)
|
||||
if stream.Error != nil {
|
||||
return "", stream.Error
|
||||
}
|
||||
return string(stream.Buffer()), nil
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) Marshal(v interface{}) ([]byte, error) {
|
||||
stream := cfg.BorrowStream(nil)
|
||||
defer cfg.ReturnStream(stream)
|
||||
stream.WriteVal(v)
|
||||
if stream.Error != nil {
|
||||
return nil, stream.Error
|
||||
}
|
||||
result := stream.Buffer()
|
||||
copied := make([]byte, len(result))
|
||||
copy(copied, result)
|
||||
return copied, nil
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) MarshalIndent(v interface{}, prefix, indent string) ([]byte, error) {
|
||||
if prefix != "" {
|
||||
panic("prefix is not supported")
|
||||
}
|
||||
for _, r := range indent {
|
||||
if r != ' ' {
|
||||
panic("indent can only be space")
|
||||
}
|
||||
}
|
||||
newCfg := cfg.configBeforeFrozen
|
||||
newCfg.IndentionStep = len(indent)
|
||||
return newCfg.frozeWithCacheReuse(cfg.extraExtensions).Marshal(v)
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) UnmarshalFromString(str string, v interface{}) error {
|
||||
data := []byte(str)
|
||||
iter := cfg.BorrowIterator(data)
|
||||
defer cfg.ReturnIterator(iter)
|
||||
iter.ReadVal(v)
|
||||
c := iter.nextToken()
|
||||
if c == 0 {
|
||||
if iter.Error == io.EOF {
|
||||
return nil
|
||||
}
|
||||
return iter.Error
|
||||
}
|
||||
iter.ReportError("Unmarshal", "there are bytes left after unmarshal")
|
||||
return iter.Error
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) Get(data []byte, path ...interface{}) Any {
|
||||
iter := cfg.BorrowIterator(data)
|
||||
defer cfg.ReturnIterator(iter)
|
||||
return locatePath(iter, path)
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) Unmarshal(data []byte, v interface{}) error {
|
||||
iter := cfg.BorrowIterator(data)
|
||||
defer cfg.ReturnIterator(iter)
|
||||
iter.ReadVal(v)
|
||||
c := iter.nextToken()
|
||||
if c == 0 {
|
||||
if iter.Error == io.EOF {
|
||||
return nil
|
||||
}
|
||||
return iter.Error
|
||||
}
|
||||
iter.ReportError("Unmarshal", "there are bytes left after unmarshal")
|
||||
return iter.Error
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) NewEncoder(writer io.Writer) *Encoder {
|
||||
stream := NewStream(cfg, writer, 512)
|
||||
return &Encoder{stream}
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) NewDecoder(reader io.Reader) *Decoder {
|
||||
iter := Parse(cfg, reader, 512)
|
||||
return &Decoder{iter}
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) Valid(data []byte) bool {
|
||||
iter := cfg.BorrowIterator(data)
|
||||
defer cfg.ReturnIterator(iter)
|
||||
iter.Skip()
|
||||
return iter.Error == nil
|
||||
}
|
|
@ -0,0 +1,7 @@
|
|||
| json type \ dest type | bool | int | uint | float |string|
|
||||
| --- | --- | --- | --- |--|--|
|
||||
| number | positive => true <br/> negative => true <br/> zero => false| 23.2 => 23 <br/> -32.1 => -32| 12.1 => 12 <br/> -12.1 => 0|as normal|same as origin|
|
||||
| string | empty string => false <br/> string "0" => false <br/> other strings => true | "123.32" => 123 <br/> "-123.4" => -123 <br/> "123.23xxxw" => 123 <br/> "abcde12" => 0 <br/> "-32.1" => -32| 13.2 => 13 <br/> -1.1 => 0 |12.1 => 12.1 <br/> -12.3 => -12.3<br/> 12.4xxa => 12.4 <br/> +1.1e2 =>110 |same as origin|
|
||||
| bool | true => true <br/> false => false| true => 1 <br/> false => 0 | true => 1 <br/> false => 0 |true => 1 <br/>false => 0|true => "true" <br/> false => "false"|
|
||||
| object | true | 0 | 0 |0|originnal json|
|
||||
| array | empty array => false <br/> nonempty array => true| [] => 0 <br/> [1,2] => 1 | [] => 0 <br/> [1,2] => 1 |[] => 0<br/>[1,2] => 1|original json|
|
|
@ -0,0 +1,11 @@
|
|||
module github.com/json-iterator/go
|
||||
|
||||
go 1.12
|
||||
|
||||
require (
|
||||
github.com/davecgh/go-spew v1.1.1
|
||||
github.com/google/gofuzz v1.0.0
|
||||
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421
|
||||
github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742
|
||||
github.com/stretchr/testify v1.3.0
|
||||
)
|
|
@ -0,0 +1,14 @@
|
|||
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
|
||||
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/google/gofuzz v1.0.0 h1:A8PeW59pxE9IoFRqBp37U+mSNaQoZ46F1f0f863XSXw=
|
||||
github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
|
||||
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
|
||||
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
|
||||
github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742 h1:Esafd1046DLDQ0W1YjYsBW+p8U2u7vzgW2SQVmlNazg=
|
||||
github.com/modern-go/reflect2 v0.0.0-20180701023420-4b7aa43c6742/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
|
||||
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
|
||||
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
|
||||
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
|
||||
github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
|
||||
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
|
|
@ -0,0 +1,349 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"fmt"
|
||||
"io"
|
||||
)
|
||||
|
||||
// ValueType the type for JSON element
|
||||
type ValueType int
|
||||
|
||||
const (
|
||||
// InvalidValue invalid JSON element
|
||||
InvalidValue ValueType = iota
|
||||
// StringValue JSON element "string"
|
||||
StringValue
|
||||
// NumberValue JSON element 100 or 0.10
|
||||
NumberValue
|
||||
// NilValue JSON element null
|
||||
NilValue
|
||||
// BoolValue JSON element true or false
|
||||
BoolValue
|
||||
// ArrayValue JSON element []
|
||||
ArrayValue
|
||||
// ObjectValue JSON element {}
|
||||
ObjectValue
|
||||
)
|
||||
|
||||
var hexDigits []byte
|
||||
var valueTypes []ValueType
|
||||
|
||||
func init() {
|
||||
hexDigits = make([]byte, 256)
|
||||
for i := 0; i < len(hexDigits); i++ {
|
||||
hexDigits[i] = 255
|
||||
}
|
||||
for i := '0'; i <= '9'; i++ {
|
||||
hexDigits[i] = byte(i - '0')
|
||||
}
|
||||
for i := 'a'; i <= 'f'; i++ {
|
||||
hexDigits[i] = byte((i - 'a') + 10)
|
||||
}
|
||||
for i := 'A'; i <= 'F'; i++ {
|
||||
hexDigits[i] = byte((i - 'A') + 10)
|
||||
}
|
||||
valueTypes = make([]ValueType, 256)
|
||||
for i := 0; i < len(valueTypes); i++ {
|
||||
valueTypes[i] = InvalidValue
|
||||
}
|
||||
valueTypes['"'] = StringValue
|
||||
valueTypes['-'] = NumberValue
|
||||
valueTypes['0'] = NumberValue
|
||||
valueTypes['1'] = NumberValue
|
||||
valueTypes['2'] = NumberValue
|
||||
valueTypes['3'] = NumberValue
|
||||
valueTypes['4'] = NumberValue
|
||||
valueTypes['5'] = NumberValue
|
||||
valueTypes['6'] = NumberValue
|
||||
valueTypes['7'] = NumberValue
|
||||
valueTypes['8'] = NumberValue
|
||||
valueTypes['9'] = NumberValue
|
||||
valueTypes['t'] = BoolValue
|
||||
valueTypes['f'] = BoolValue
|
||||
valueTypes['n'] = NilValue
|
||||
valueTypes['['] = ArrayValue
|
||||
valueTypes['{'] = ObjectValue
|
||||
}
|
||||
|
||||
// Iterator is a io.Reader like object, with JSON specific read functions.
|
||||
// Error is not returned as return value, but stored as Error member on this iterator instance.
|
||||
type Iterator struct {
|
||||
cfg *frozenConfig
|
||||
reader io.Reader
|
||||
buf []byte
|
||||
head int
|
||||
tail int
|
||||
depth int
|
||||
captureStartedAt int
|
||||
captured []byte
|
||||
Error error
|
||||
Attachment interface{} // open for customized decoder
|
||||
}
|
||||
|
||||
// NewIterator creates an empty Iterator instance
|
||||
func NewIterator(cfg API) *Iterator {
|
||||
return &Iterator{
|
||||
cfg: cfg.(*frozenConfig),
|
||||
reader: nil,
|
||||
buf: nil,
|
||||
head: 0,
|
||||
tail: 0,
|
||||
depth: 0,
|
||||
}
|
||||
}
|
||||
|
||||
// Parse creates an Iterator instance from io.Reader
|
||||
func Parse(cfg API, reader io.Reader, bufSize int) *Iterator {
|
||||
return &Iterator{
|
||||
cfg: cfg.(*frozenConfig),
|
||||
reader: reader,
|
||||
buf: make([]byte, bufSize),
|
||||
head: 0,
|
||||
tail: 0,
|
||||
depth: 0,
|
||||
}
|
||||
}
|
||||
|
||||
// ParseBytes creates an Iterator instance from byte array
|
||||
func ParseBytes(cfg API, input []byte) *Iterator {
|
||||
return &Iterator{
|
||||
cfg: cfg.(*frozenConfig),
|
||||
reader: nil,
|
||||
buf: input,
|
||||
head: 0,
|
||||
tail: len(input),
|
||||
depth: 0,
|
||||
}
|
||||
}
|
||||
|
||||
// ParseString creates an Iterator instance from string
|
||||
func ParseString(cfg API, input string) *Iterator {
|
||||
return ParseBytes(cfg, []byte(input))
|
||||
}
|
||||
|
||||
// Pool returns a pool can provide more iterator with same configuration
|
||||
func (iter *Iterator) Pool() IteratorPool {
|
||||
return iter.cfg
|
||||
}
|
||||
|
||||
// Reset reuse iterator instance by specifying another reader
|
||||
func (iter *Iterator) Reset(reader io.Reader) *Iterator {
|
||||
iter.reader = reader
|
||||
iter.head = 0
|
||||
iter.tail = 0
|
||||
iter.depth = 0
|
||||
return iter
|
||||
}
|
||||
|
||||
// ResetBytes reuse iterator instance by specifying another byte array as input
|
||||
func (iter *Iterator) ResetBytes(input []byte) *Iterator {
|
||||
iter.reader = nil
|
||||
iter.buf = input
|
||||
iter.head = 0
|
||||
iter.tail = len(input)
|
||||
iter.depth = 0
|
||||
return iter
|
||||
}
|
||||
|
||||
// WhatIsNext gets ValueType of relatively next json element
|
||||
func (iter *Iterator) WhatIsNext() ValueType {
|
||||
valueType := valueTypes[iter.nextToken()]
|
||||
iter.unreadByte()
|
||||
return valueType
|
||||
}
|
||||
|
||||
func (iter *Iterator) skipWhitespacesWithoutLoadMore() bool {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
c := iter.buf[i]
|
||||
switch c {
|
||||
case ' ', '\n', '\t', '\r':
|
||||
continue
|
||||
}
|
||||
iter.head = i
|
||||
return false
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
func (iter *Iterator) isObjectEnd() bool {
|
||||
c := iter.nextToken()
|
||||
if c == ',' {
|
||||
return false
|
||||
}
|
||||
if c == '}' {
|
||||
return true
|
||||
}
|
||||
iter.ReportError("isObjectEnd", "object ended prematurely, unexpected char "+string([]byte{c}))
|
||||
return true
|
||||
}
|
||||
|
||||
func (iter *Iterator) nextToken() byte {
|
||||
// a variation of skip whitespaces, returning the next non-whitespace token
|
||||
for {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
c := iter.buf[i]
|
||||
switch c {
|
||||
case ' ', '\n', '\t', '\r':
|
||||
continue
|
||||
}
|
||||
iter.head = i + 1
|
||||
return c
|
||||
}
|
||||
if !iter.loadMore() {
|
||||
return 0
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// ReportError record a error in iterator instance with current position.
|
||||
func (iter *Iterator) ReportError(operation string, msg string) {
|
||||
if iter.Error != nil {
|
||||
if iter.Error != io.EOF {
|
||||
return
|
||||
}
|
||||
}
|
||||
peekStart := iter.head - 10
|
||||
if peekStart < 0 {
|
||||
peekStart = 0
|
||||
}
|
||||
peekEnd := iter.head + 10
|
||||
if peekEnd > iter.tail {
|
||||
peekEnd = iter.tail
|
||||
}
|
||||
parsing := string(iter.buf[peekStart:peekEnd])
|
||||
contextStart := iter.head - 50
|
||||
if contextStart < 0 {
|
||||
contextStart = 0
|
||||
}
|
||||
contextEnd := iter.head + 50
|
||||
if contextEnd > iter.tail {
|
||||
contextEnd = iter.tail
|
||||
}
|
||||
context := string(iter.buf[contextStart:contextEnd])
|
||||
iter.Error = fmt.Errorf("%s: %s, error found in #%v byte of ...|%s|..., bigger context ...|%s|...",
|
||||
operation, msg, iter.head-peekStart, parsing, context)
|
||||
}
|
||||
|
||||
// CurrentBuffer gets current buffer as string for debugging purpose
|
||||
func (iter *Iterator) CurrentBuffer() string {
|
||||
peekStart := iter.head - 10
|
||||
if peekStart < 0 {
|
||||
peekStart = 0
|
||||
}
|
||||
return fmt.Sprintf("parsing #%v byte, around ...|%s|..., whole buffer ...|%s|...", iter.head,
|
||||
string(iter.buf[peekStart:iter.head]), string(iter.buf[0:iter.tail]))
|
||||
}
|
||||
|
||||
func (iter *Iterator) readByte() (ret byte) {
|
||||
if iter.head == iter.tail {
|
||||
if iter.loadMore() {
|
||||
ret = iter.buf[iter.head]
|
||||
iter.head++
|
||||
return ret
|
||||
}
|
||||
return 0
|
||||
}
|
||||
ret = iter.buf[iter.head]
|
||||
iter.head++
|
||||
return ret
|
||||
}
|
||||
|
||||
func (iter *Iterator) loadMore() bool {
|
||||
if iter.reader == nil {
|
||||
if iter.Error == nil {
|
||||
iter.head = iter.tail
|
||||
iter.Error = io.EOF
|
||||
}
|
||||
return false
|
||||
}
|
||||
if iter.captured != nil {
|
||||
iter.captured = append(iter.captured,
|
||||
iter.buf[iter.captureStartedAt:iter.tail]...)
|
||||
iter.captureStartedAt = 0
|
||||
}
|
||||
for {
|
||||
n, err := iter.reader.Read(iter.buf)
|
||||
if n == 0 {
|
||||
if err != nil {
|
||||
if iter.Error == nil {
|
||||
iter.Error = err
|
||||
}
|
||||
return false
|
||||
}
|
||||
} else {
|
||||
iter.head = 0
|
||||
iter.tail = n
|
||||
return true
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (iter *Iterator) unreadByte() {
|
||||
if iter.Error != nil {
|
||||
return
|
||||
}
|
||||
iter.head--
|
||||
return
|
||||
}
|
||||
|
||||
// Read read the next JSON element as generic interface{}.
|
||||
func (iter *Iterator) Read() interface{} {
|
||||
valueType := iter.WhatIsNext()
|
||||
switch valueType {
|
||||
case StringValue:
|
||||
return iter.ReadString()
|
||||
case NumberValue:
|
||||
if iter.cfg.configBeforeFrozen.UseNumber {
|
||||
return json.Number(iter.readNumberAsString())
|
||||
}
|
||||
return iter.ReadFloat64()
|
||||
case NilValue:
|
||||
iter.skipFourBytes('n', 'u', 'l', 'l')
|
||||
return nil
|
||||
case BoolValue:
|
||||
return iter.ReadBool()
|
||||
case ArrayValue:
|
||||
arr := []interface{}{}
|
||||
iter.ReadArrayCB(func(iter *Iterator) bool {
|
||||
var elem interface{}
|
||||
iter.ReadVal(&elem)
|
||||
arr = append(arr, elem)
|
||||
return true
|
||||
})
|
||||
return arr
|
||||
case ObjectValue:
|
||||
obj := map[string]interface{}{}
|
||||
iter.ReadMapCB(func(Iter *Iterator, field string) bool {
|
||||
var elem interface{}
|
||||
iter.ReadVal(&elem)
|
||||
obj[field] = elem
|
||||
return true
|
||||
})
|
||||
return obj
|
||||
default:
|
||||
iter.ReportError("Read", fmt.Sprintf("unexpected value type: %v", valueType))
|
||||
return nil
|
||||
}
|
||||
}
|
||||
|
||||
// limit maximum depth of nesting, as allowed by https://tools.ietf.org/html/rfc7159#section-9
|
||||
const maxDepth = 10000
|
||||
|
||||
func (iter *Iterator) incrementDepth() (success bool) {
|
||||
iter.depth++
|
||||
if iter.depth <= maxDepth {
|
||||
return true
|
||||
}
|
||||
iter.ReportError("incrementDepth", "exceeded max depth")
|
||||
return false
|
||||
}
|
||||
|
||||
func (iter *Iterator) decrementDepth() (success bool) {
|
||||
iter.depth--
|
||||
if iter.depth >= 0 {
|
||||
return true
|
||||
}
|
||||
iter.ReportError("decrementDepth", "unexpected negative nesting")
|
||||
return false
|
||||
}
|
|
@ -0,0 +1,64 @@
|
|||
package jsoniter
|
||||
|
||||
// ReadArray read array element, tells if the array has more element to read.
|
||||
func (iter *Iterator) ReadArray() (ret bool) {
|
||||
c := iter.nextToken()
|
||||
switch c {
|
||||
case 'n':
|
||||
iter.skipThreeBytes('u', 'l', 'l')
|
||||
return false // null
|
||||
case '[':
|
||||
c = iter.nextToken()
|
||||
if c != ']' {
|
||||
iter.unreadByte()
|
||||
return true
|
||||
}
|
||||
return false
|
||||
case ']':
|
||||
return false
|
||||
case ',':
|
||||
return true
|
||||
default:
|
||||
iter.ReportError("ReadArray", "expect [ or , or ] or n, but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// ReadArrayCB read array with callback
|
||||
func (iter *Iterator) ReadArrayCB(callback func(*Iterator) bool) (ret bool) {
|
||||
c := iter.nextToken()
|
||||
if c == '[' {
|
||||
if !iter.incrementDepth() {
|
||||
return false
|
||||
}
|
||||
c = iter.nextToken()
|
||||
if c != ']' {
|
||||
iter.unreadByte()
|
||||
if !callback(iter) {
|
||||
iter.decrementDepth()
|
||||
return false
|
||||
}
|
||||
c = iter.nextToken()
|
||||
for c == ',' {
|
||||
if !callback(iter) {
|
||||
iter.decrementDepth()
|
||||
return false
|
||||
}
|
||||
c = iter.nextToken()
|
||||
}
|
||||
if c != ']' {
|
||||
iter.ReportError("ReadArrayCB", "expect ] in the end, but found "+string([]byte{c}))
|
||||
iter.decrementDepth()
|
||||
return false
|
||||
}
|
||||
return iter.decrementDepth()
|
||||
}
|
||||
return iter.decrementDepth()
|
||||
}
|
||||
if c == 'n' {
|
||||
iter.skipThreeBytes('u', 'l', 'l')
|
||||
return true // null
|
||||
}
|
||||
iter.ReportError("ReadArrayCB", "expect [ or n, but found "+string([]byte{c}))
|
||||
return false
|
||||
}
|
|
@ -0,0 +1,339 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"io"
|
||||
"math/big"
|
||||
"strconv"
|
||||
"strings"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
var floatDigits []int8
|
||||
|
||||
const invalidCharForNumber = int8(-1)
|
||||
const endOfNumber = int8(-2)
|
||||
const dotInNumber = int8(-3)
|
||||
|
||||
func init() {
|
||||
floatDigits = make([]int8, 256)
|
||||
for i := 0; i < len(floatDigits); i++ {
|
||||
floatDigits[i] = invalidCharForNumber
|
||||
}
|
||||
for i := int8('0'); i <= int8('9'); i++ {
|
||||
floatDigits[i] = i - int8('0')
|
||||
}
|
||||
floatDigits[','] = endOfNumber
|
||||
floatDigits[']'] = endOfNumber
|
||||
floatDigits['}'] = endOfNumber
|
||||
floatDigits[' '] = endOfNumber
|
||||
floatDigits['\t'] = endOfNumber
|
||||
floatDigits['\n'] = endOfNumber
|
||||
floatDigits['.'] = dotInNumber
|
||||
}
|
||||
|
||||
// ReadBigFloat read big.Float
|
||||
func (iter *Iterator) ReadBigFloat() (ret *big.Float) {
|
||||
str := iter.readNumberAsString()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
return nil
|
||||
}
|
||||
prec := 64
|
||||
if len(str) > prec {
|
||||
prec = len(str)
|
||||
}
|
||||
val, _, err := big.ParseFloat(str, 10, uint(prec), big.ToZero)
|
||||
if err != nil {
|
||||
iter.Error = err
|
||||
return nil
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
// ReadBigInt read big.Int
|
||||
func (iter *Iterator) ReadBigInt() (ret *big.Int) {
|
||||
str := iter.readNumberAsString()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
return nil
|
||||
}
|
||||
ret = big.NewInt(0)
|
||||
var success bool
|
||||
ret, success = ret.SetString(str, 10)
|
||||
if !success {
|
||||
iter.ReportError("ReadBigInt", "invalid big int")
|
||||
return nil
|
||||
}
|
||||
return ret
|
||||
}
|
||||
|
||||
//ReadFloat32 read float32
|
||||
func (iter *Iterator) ReadFloat32() (ret float32) {
|
||||
c := iter.nextToken()
|
||||
if c == '-' {
|
||||
return -iter.readPositiveFloat32()
|
||||
}
|
||||
iter.unreadByte()
|
||||
return iter.readPositiveFloat32()
|
||||
}
|
||||
|
||||
func (iter *Iterator) readPositiveFloat32() (ret float32) {
|
||||
i := iter.head
|
||||
// first char
|
||||
if i == iter.tail {
|
||||
return iter.readFloat32SlowPath()
|
||||
}
|
||||
c := iter.buf[i]
|
||||
i++
|
||||
ind := floatDigits[c]
|
||||
switch ind {
|
||||
case invalidCharForNumber:
|
||||
return iter.readFloat32SlowPath()
|
||||
case endOfNumber:
|
||||
iter.ReportError("readFloat32", "empty number")
|
||||
return
|
||||
case dotInNumber:
|
||||
iter.ReportError("readFloat32", "leading dot is invalid")
|
||||
return
|
||||
case 0:
|
||||
if i == iter.tail {
|
||||
return iter.readFloat32SlowPath()
|
||||
}
|
||||
c = iter.buf[i]
|
||||
switch c {
|
||||
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
||||
iter.ReportError("readFloat32", "leading zero is invalid")
|
||||
return
|
||||
}
|
||||
}
|
||||
value := uint64(ind)
|
||||
// chars before dot
|
||||
non_decimal_loop:
|
||||
for ; i < iter.tail; i++ {
|
||||
c = iter.buf[i]
|
||||
ind := floatDigits[c]
|
||||
switch ind {
|
||||
case invalidCharForNumber:
|
||||
return iter.readFloat32SlowPath()
|
||||
case endOfNumber:
|
||||
iter.head = i
|
||||
return float32(value)
|
||||
case dotInNumber:
|
||||
break non_decimal_loop
|
||||
}
|
||||
if value > uint64SafeToMultiple10 {
|
||||
return iter.readFloat32SlowPath()
|
||||
}
|
||||
value = (value << 3) + (value << 1) + uint64(ind) // value = value * 10 + ind;
|
||||
}
|
||||
// chars after dot
|
||||
if c == '.' {
|
||||
i++
|
||||
decimalPlaces := 0
|
||||
if i == iter.tail {
|
||||
return iter.readFloat32SlowPath()
|
||||
}
|
||||
for ; i < iter.tail; i++ {
|
||||
c = iter.buf[i]
|
||||
ind := floatDigits[c]
|
||||
switch ind {
|
||||
case endOfNumber:
|
||||
if decimalPlaces > 0 && decimalPlaces < len(pow10) {
|
||||
iter.head = i
|
||||
return float32(float64(value) / float64(pow10[decimalPlaces]))
|
||||
}
|
||||
// too many decimal places
|
||||
return iter.readFloat32SlowPath()
|
||||
case invalidCharForNumber, dotInNumber:
|
||||
return iter.readFloat32SlowPath()
|
||||
}
|
||||
decimalPlaces++
|
||||
if value > uint64SafeToMultiple10 {
|
||||
return iter.readFloat32SlowPath()
|
||||
}
|
||||
value = (value << 3) + (value << 1) + uint64(ind)
|
||||
}
|
||||
}
|
||||
return iter.readFloat32SlowPath()
|
||||
}
|
||||
|
||||
func (iter *Iterator) readNumberAsString() (ret string) {
|
||||
strBuf := [16]byte{}
|
||||
str := strBuf[0:0]
|
||||
load_loop:
|
||||
for {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
c := iter.buf[i]
|
||||
switch c {
|
||||
case '+', '-', '.', 'e', 'E', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
||||
str = append(str, c)
|
||||
continue
|
||||
default:
|
||||
iter.head = i
|
||||
break load_loop
|
||||
}
|
||||
}
|
||||
if !iter.loadMore() {
|
||||
break
|
||||
}
|
||||
}
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
return
|
||||
}
|
||||
if len(str) == 0 {
|
||||
iter.ReportError("readNumberAsString", "invalid number")
|
||||
}
|
||||
return *(*string)(unsafe.Pointer(&str))
|
||||
}
|
||||
|
||||
func (iter *Iterator) readFloat32SlowPath() (ret float32) {
|
||||
str := iter.readNumberAsString()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
return
|
||||
}
|
||||
errMsg := validateFloat(str)
|
||||
if errMsg != "" {
|
||||
iter.ReportError("readFloat32SlowPath", errMsg)
|
||||
return
|
||||
}
|
||||
val, err := strconv.ParseFloat(str, 32)
|
||||
if err != nil {
|
||||
iter.Error = err
|
||||
return
|
||||
}
|
||||
return float32(val)
|
||||
}
|
||||
|
||||
// ReadFloat64 read float64
|
||||
func (iter *Iterator) ReadFloat64() (ret float64) {
|
||||
c := iter.nextToken()
|
||||
if c == '-' {
|
||||
return -iter.readPositiveFloat64()
|
||||
}
|
||||
iter.unreadByte()
|
||||
return iter.readPositiveFloat64()
|
||||
}
|
||||
|
||||
func (iter *Iterator) readPositiveFloat64() (ret float64) {
|
||||
i := iter.head
|
||||
// first char
|
||||
if i == iter.tail {
|
||||
return iter.readFloat64SlowPath()
|
||||
}
|
||||
c := iter.buf[i]
|
||||
i++
|
||||
ind := floatDigits[c]
|
||||
switch ind {
|
||||
case invalidCharForNumber:
|
||||
return iter.readFloat64SlowPath()
|
||||
case endOfNumber:
|
||||
iter.ReportError("readFloat64", "empty number")
|
||||
return
|
||||
case dotInNumber:
|
||||
iter.ReportError("readFloat64", "leading dot is invalid")
|
||||
return
|
||||
case 0:
|
||||
if i == iter.tail {
|
||||
return iter.readFloat64SlowPath()
|
||||
}
|
||||
c = iter.buf[i]
|
||||
switch c {
|
||||
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
||||
iter.ReportError("readFloat64", "leading zero is invalid")
|
||||
return
|
||||
}
|
||||
}
|
||||
value := uint64(ind)
|
||||
// chars before dot
|
||||
non_decimal_loop:
|
||||
for ; i < iter.tail; i++ {
|
||||
c = iter.buf[i]
|
||||
ind := floatDigits[c]
|
||||
switch ind {
|
||||
case invalidCharForNumber:
|
||||
return iter.readFloat64SlowPath()
|
||||
case endOfNumber:
|
||||
iter.head = i
|
||||
return float64(value)
|
||||
case dotInNumber:
|
||||
break non_decimal_loop
|
||||
}
|
||||
if value > uint64SafeToMultiple10 {
|
||||
return iter.readFloat64SlowPath()
|
||||
}
|
||||
value = (value << 3) + (value << 1) + uint64(ind) // value = value * 10 + ind;
|
||||
}
|
||||
// chars after dot
|
||||
if c == '.' {
|
||||
i++
|
||||
decimalPlaces := 0
|
||||
if i == iter.tail {
|
||||
return iter.readFloat64SlowPath()
|
||||
}
|
||||
for ; i < iter.tail; i++ {
|
||||
c = iter.buf[i]
|
||||
ind := floatDigits[c]
|
||||
switch ind {
|
||||
case endOfNumber:
|
||||
if decimalPlaces > 0 && decimalPlaces < len(pow10) {
|
||||
iter.head = i
|
||||
return float64(value) / float64(pow10[decimalPlaces])
|
||||
}
|
||||
// too many decimal places
|
||||
return iter.readFloat64SlowPath()
|
||||
case invalidCharForNumber, dotInNumber:
|
||||
return iter.readFloat64SlowPath()
|
||||
}
|
||||
decimalPlaces++
|
||||
if value > uint64SafeToMultiple10 {
|
||||
return iter.readFloat64SlowPath()
|
||||
}
|
||||
value = (value << 3) + (value << 1) + uint64(ind)
|
||||
}
|
||||
}
|
||||
return iter.readFloat64SlowPath()
|
||||
}
|
||||
|
||||
func (iter *Iterator) readFloat64SlowPath() (ret float64) {
|
||||
str := iter.readNumberAsString()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
return
|
||||
}
|
||||
errMsg := validateFloat(str)
|
||||
if errMsg != "" {
|
||||
iter.ReportError("readFloat64SlowPath", errMsg)
|
||||
return
|
||||
}
|
||||
val, err := strconv.ParseFloat(str, 64)
|
||||
if err != nil {
|
||||
iter.Error = err
|
||||
return
|
||||
}
|
||||
return val
|
||||
}
|
||||
|
||||
func validateFloat(str string) string {
|
||||
// strconv.ParseFloat is not validating `1.` or `1.e1`
|
||||
if len(str) == 0 {
|
||||
return "empty number"
|
||||
}
|
||||
if str[0] == '-' {
|
||||
return "-- is not valid"
|
||||
}
|
||||
dotPos := strings.IndexByte(str, '.')
|
||||
if dotPos != -1 {
|
||||
if dotPos == len(str)-1 {
|
||||
return "dot can not be last character"
|
||||
}
|
||||
switch str[dotPos+1] {
|
||||
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
||||
default:
|
||||
return "missing digit after dot"
|
||||
}
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
// ReadNumber read json.Number
|
||||
func (iter *Iterator) ReadNumber() (ret json.Number) {
|
||||
return json.Number(iter.readNumberAsString())
|
||||
}
|
|
@ -0,0 +1,345 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"math"
|
||||
"strconv"
|
||||
)
|
||||
|
||||
var intDigits []int8
|
||||
|
||||
const uint32SafeToMultiply10 = uint32(0xffffffff)/10 - 1
|
||||
const uint64SafeToMultiple10 = uint64(0xffffffffffffffff)/10 - 1
|
||||
|
||||
func init() {
|
||||
intDigits = make([]int8, 256)
|
||||
for i := 0; i < len(intDigits); i++ {
|
||||
intDigits[i] = invalidCharForNumber
|
||||
}
|
||||
for i := int8('0'); i <= int8('9'); i++ {
|
||||
intDigits[i] = i - int8('0')
|
||||
}
|
||||
}
|
||||
|
||||
// ReadUint read uint
|
||||
func (iter *Iterator) ReadUint() uint {
|
||||
if strconv.IntSize == 32 {
|
||||
return uint(iter.ReadUint32())
|
||||
}
|
||||
return uint(iter.ReadUint64())
|
||||
}
|
||||
|
||||
// ReadInt read int
|
||||
func (iter *Iterator) ReadInt() int {
|
||||
if strconv.IntSize == 32 {
|
||||
return int(iter.ReadInt32())
|
||||
}
|
||||
return int(iter.ReadInt64())
|
||||
}
|
||||
|
||||
// ReadInt8 read int8
|
||||
func (iter *Iterator) ReadInt8() (ret int8) {
|
||||
c := iter.nextToken()
|
||||
if c == '-' {
|
||||
val := iter.readUint32(iter.readByte())
|
||||
if val > math.MaxInt8+1 {
|
||||
iter.ReportError("ReadInt8", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return -int8(val)
|
||||
}
|
||||
val := iter.readUint32(c)
|
||||
if val > math.MaxInt8 {
|
||||
iter.ReportError("ReadInt8", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return int8(val)
|
||||
}
|
||||
|
||||
// ReadUint8 read uint8
|
||||
func (iter *Iterator) ReadUint8() (ret uint8) {
|
||||
val := iter.readUint32(iter.nextToken())
|
||||
if val > math.MaxUint8 {
|
||||
iter.ReportError("ReadUint8", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return uint8(val)
|
||||
}
|
||||
|
||||
// ReadInt16 read int16
|
||||
func (iter *Iterator) ReadInt16() (ret int16) {
|
||||
c := iter.nextToken()
|
||||
if c == '-' {
|
||||
val := iter.readUint32(iter.readByte())
|
||||
if val > math.MaxInt16+1 {
|
||||
iter.ReportError("ReadInt16", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return -int16(val)
|
||||
}
|
||||
val := iter.readUint32(c)
|
||||
if val > math.MaxInt16 {
|
||||
iter.ReportError("ReadInt16", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return int16(val)
|
||||
}
|
||||
|
||||
// ReadUint16 read uint16
|
||||
func (iter *Iterator) ReadUint16() (ret uint16) {
|
||||
val := iter.readUint32(iter.nextToken())
|
||||
if val > math.MaxUint16 {
|
||||
iter.ReportError("ReadUint16", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return uint16(val)
|
||||
}
|
||||
|
||||
// ReadInt32 read int32
|
||||
func (iter *Iterator) ReadInt32() (ret int32) {
|
||||
c := iter.nextToken()
|
||||
if c == '-' {
|
||||
val := iter.readUint32(iter.readByte())
|
||||
if val > math.MaxInt32+1 {
|
||||
iter.ReportError("ReadInt32", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return -int32(val)
|
||||
}
|
||||
val := iter.readUint32(c)
|
||||
if val > math.MaxInt32 {
|
||||
iter.ReportError("ReadInt32", "overflow: "+strconv.FormatInt(int64(val), 10))
|
||||
return
|
||||
}
|
||||
return int32(val)
|
||||
}
|
||||
|
||||
// ReadUint32 read uint32
|
||||
func (iter *Iterator) ReadUint32() (ret uint32) {
|
||||
return iter.readUint32(iter.nextToken())
|
||||
}
|
||||
|
||||
func (iter *Iterator) readUint32(c byte) (ret uint32) {
|
||||
ind := intDigits[c]
|
||||
if ind == 0 {
|
||||
iter.assertInteger()
|
||||
return 0 // single zero
|
||||
}
|
||||
if ind == invalidCharForNumber {
|
||||
iter.ReportError("readUint32", "unexpected character: "+string([]byte{byte(ind)}))
|
||||
return
|
||||
}
|
||||
value := uint32(ind)
|
||||
if iter.tail-iter.head > 10 {
|
||||
i := iter.head
|
||||
ind2 := intDigits[iter.buf[i]]
|
||||
if ind2 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
i++
|
||||
ind3 := intDigits[iter.buf[i]]
|
||||
if ind3 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*10 + uint32(ind2)
|
||||
}
|
||||
//iter.head = i + 1
|
||||
//value = value * 100 + uint32(ind2) * 10 + uint32(ind3)
|
||||
i++
|
||||
ind4 := intDigits[iter.buf[i]]
|
||||
if ind4 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*100 + uint32(ind2)*10 + uint32(ind3)
|
||||
}
|
||||
i++
|
||||
ind5 := intDigits[iter.buf[i]]
|
||||
if ind5 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*1000 + uint32(ind2)*100 + uint32(ind3)*10 + uint32(ind4)
|
||||
}
|
||||
i++
|
||||
ind6 := intDigits[iter.buf[i]]
|
||||
if ind6 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*10000 + uint32(ind2)*1000 + uint32(ind3)*100 + uint32(ind4)*10 + uint32(ind5)
|
||||
}
|
||||
i++
|
||||
ind7 := intDigits[iter.buf[i]]
|
||||
if ind7 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*100000 + uint32(ind2)*10000 + uint32(ind3)*1000 + uint32(ind4)*100 + uint32(ind5)*10 + uint32(ind6)
|
||||
}
|
||||
i++
|
||||
ind8 := intDigits[iter.buf[i]]
|
||||
if ind8 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*1000000 + uint32(ind2)*100000 + uint32(ind3)*10000 + uint32(ind4)*1000 + uint32(ind5)*100 + uint32(ind6)*10 + uint32(ind7)
|
||||
}
|
||||
i++
|
||||
ind9 := intDigits[iter.buf[i]]
|
||||
value = value*10000000 + uint32(ind2)*1000000 + uint32(ind3)*100000 + uint32(ind4)*10000 + uint32(ind5)*1000 + uint32(ind6)*100 + uint32(ind7)*10 + uint32(ind8)
|
||||
iter.head = i
|
||||
if ind9 == invalidCharForNumber {
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
}
|
||||
for {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
ind = intDigits[iter.buf[i]]
|
||||
if ind == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
if value > uint32SafeToMultiply10 {
|
||||
value2 := (value << 3) + (value << 1) + uint32(ind)
|
||||
if value2 < value {
|
||||
iter.ReportError("readUint32", "overflow")
|
||||
return
|
||||
}
|
||||
value = value2
|
||||
continue
|
||||
}
|
||||
value = (value << 3) + (value << 1) + uint32(ind)
|
||||
}
|
||||
if !iter.loadMore() {
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// ReadInt64 read int64
|
||||
func (iter *Iterator) ReadInt64() (ret int64) {
|
||||
c := iter.nextToken()
|
||||
if c == '-' {
|
||||
val := iter.readUint64(iter.readByte())
|
||||
if val > math.MaxInt64+1 {
|
||||
iter.ReportError("ReadInt64", "overflow: "+strconv.FormatUint(uint64(val), 10))
|
||||
return
|
||||
}
|
||||
return -int64(val)
|
||||
}
|
||||
val := iter.readUint64(c)
|
||||
if val > math.MaxInt64 {
|
||||
iter.ReportError("ReadInt64", "overflow: "+strconv.FormatUint(uint64(val), 10))
|
||||
return
|
||||
}
|
||||
return int64(val)
|
||||
}
|
||||
|
||||
// ReadUint64 read uint64
|
||||
func (iter *Iterator) ReadUint64() uint64 {
|
||||
return iter.readUint64(iter.nextToken())
|
||||
}
|
||||
|
||||
func (iter *Iterator) readUint64(c byte) (ret uint64) {
|
||||
ind := intDigits[c]
|
||||
if ind == 0 {
|
||||
iter.assertInteger()
|
||||
return 0 // single zero
|
||||
}
|
||||
if ind == invalidCharForNumber {
|
||||
iter.ReportError("readUint64", "unexpected character: "+string([]byte{byte(ind)}))
|
||||
return
|
||||
}
|
||||
value := uint64(ind)
|
||||
if iter.tail-iter.head > 10 {
|
||||
i := iter.head
|
||||
ind2 := intDigits[iter.buf[i]]
|
||||
if ind2 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
i++
|
||||
ind3 := intDigits[iter.buf[i]]
|
||||
if ind3 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*10 + uint64(ind2)
|
||||
}
|
||||
//iter.head = i + 1
|
||||
//value = value * 100 + uint32(ind2) * 10 + uint32(ind3)
|
||||
i++
|
||||
ind4 := intDigits[iter.buf[i]]
|
||||
if ind4 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*100 + uint64(ind2)*10 + uint64(ind3)
|
||||
}
|
||||
i++
|
||||
ind5 := intDigits[iter.buf[i]]
|
||||
if ind5 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*1000 + uint64(ind2)*100 + uint64(ind3)*10 + uint64(ind4)
|
||||
}
|
||||
i++
|
||||
ind6 := intDigits[iter.buf[i]]
|
||||
if ind6 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*10000 + uint64(ind2)*1000 + uint64(ind3)*100 + uint64(ind4)*10 + uint64(ind5)
|
||||
}
|
||||
i++
|
||||
ind7 := intDigits[iter.buf[i]]
|
||||
if ind7 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*100000 + uint64(ind2)*10000 + uint64(ind3)*1000 + uint64(ind4)*100 + uint64(ind5)*10 + uint64(ind6)
|
||||
}
|
||||
i++
|
||||
ind8 := intDigits[iter.buf[i]]
|
||||
if ind8 == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value*1000000 + uint64(ind2)*100000 + uint64(ind3)*10000 + uint64(ind4)*1000 + uint64(ind5)*100 + uint64(ind6)*10 + uint64(ind7)
|
||||
}
|
||||
i++
|
||||
ind9 := intDigits[iter.buf[i]]
|
||||
value = value*10000000 + uint64(ind2)*1000000 + uint64(ind3)*100000 + uint64(ind4)*10000 + uint64(ind5)*1000 + uint64(ind6)*100 + uint64(ind7)*10 + uint64(ind8)
|
||||
iter.head = i
|
||||
if ind9 == invalidCharForNumber {
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
}
|
||||
for {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
ind = intDigits[iter.buf[i]]
|
||||
if ind == invalidCharForNumber {
|
||||
iter.head = i
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
if value > uint64SafeToMultiple10 {
|
||||
value2 := (value << 3) + (value << 1) + uint64(ind)
|
||||
if value2 < value {
|
||||
iter.ReportError("readUint64", "overflow")
|
||||
return
|
||||
}
|
||||
value = value2
|
||||
continue
|
||||
}
|
||||
value = (value << 3) + (value << 1) + uint64(ind)
|
||||
}
|
||||
if !iter.loadMore() {
|
||||
iter.assertInteger()
|
||||
return value
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (iter *Iterator) assertInteger() {
|
||||
if iter.head < len(iter.buf) && iter.buf[iter.head] == '.' {
|
||||
iter.ReportError("assertInteger", "can not decode float as int")
|
||||
}
|
||||
}
|
|
@ -0,0 +1,267 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strings"
|
||||
)
|
||||
|
||||
// ReadObject read one field from object.
|
||||
// If object ended, returns empty string.
|
||||
// Otherwise, returns the field name.
|
||||
func (iter *Iterator) ReadObject() (ret string) {
|
||||
c := iter.nextToken()
|
||||
switch c {
|
||||
case 'n':
|
||||
iter.skipThreeBytes('u', 'l', 'l')
|
||||
return "" // null
|
||||
case '{':
|
||||
c = iter.nextToken()
|
||||
if c == '"' {
|
||||
iter.unreadByte()
|
||||
field := iter.ReadString()
|
||||
c = iter.nextToken()
|
||||
if c != ':' {
|
||||
iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c}))
|
||||
}
|
||||
return field
|
||||
}
|
||||
if c == '}' {
|
||||
return "" // end of object
|
||||
}
|
||||
iter.ReportError("ReadObject", `expect " after {, but found `+string([]byte{c}))
|
||||
return
|
||||
case ',':
|
||||
field := iter.ReadString()
|
||||
c = iter.nextToken()
|
||||
if c != ':' {
|
||||
iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c}))
|
||||
}
|
||||
return field
|
||||
case '}':
|
||||
return "" // end of object
|
||||
default:
|
||||
iter.ReportError("ReadObject", fmt.Sprintf(`expect { or , or } or n, but found %s`, string([]byte{c})))
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// CaseInsensitive
|
||||
func (iter *Iterator) readFieldHash() int64 {
|
||||
hash := int64(0x811c9dc5)
|
||||
c := iter.nextToken()
|
||||
if c != '"' {
|
||||
iter.ReportError("readFieldHash", `expect ", but found `+string([]byte{c}))
|
||||
return 0
|
||||
}
|
||||
for {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
// require ascii string and no escape
|
||||
b := iter.buf[i]
|
||||
if b == '\\' {
|
||||
iter.head = i
|
||||
for _, b := range iter.readStringSlowPath() {
|
||||
if 'A' <= b && b <= 'Z' && !iter.cfg.caseSensitive {
|
||||
b += 'a' - 'A'
|
||||
}
|
||||
hash ^= int64(b)
|
||||
hash *= 0x1000193
|
||||
}
|
||||
c = iter.nextToken()
|
||||
if c != ':' {
|
||||
iter.ReportError("readFieldHash", `expect :, but found `+string([]byte{c}))
|
||||
return 0
|
||||
}
|
||||
return hash
|
||||
}
|
||||
if b == '"' {
|
||||
iter.head = i + 1
|
||||
c = iter.nextToken()
|
||||
if c != ':' {
|
||||
iter.ReportError("readFieldHash", `expect :, but found `+string([]byte{c}))
|
||||
return 0
|
||||
}
|
||||
return hash
|
||||
}
|
||||
if 'A' <= b && b <= 'Z' && !iter.cfg.caseSensitive {
|
||||
b += 'a' - 'A'
|
||||
}
|
||||
hash ^= int64(b)
|
||||
hash *= 0x1000193
|
||||
}
|
||||
if !iter.loadMore() {
|
||||
iter.ReportError("readFieldHash", `incomplete field name`)
|
||||
return 0
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func calcHash(str string, caseSensitive bool) int64 {
|
||||
if !caseSensitive {
|
||||
str = strings.ToLower(str)
|
||||
}
|
||||
hash := int64(0x811c9dc5)
|
||||
for _, b := range []byte(str) {
|
||||
hash ^= int64(b)
|
||||
hash *= 0x1000193
|
||||
}
|
||||
return int64(hash)
|
||||
}
|
||||
|
||||
// ReadObjectCB read object with callback, the key is ascii only and field name not copied
|
||||
func (iter *Iterator) ReadObjectCB(callback func(*Iterator, string) bool) bool {
|
||||
c := iter.nextToken()
|
||||
var field string
|
||||
if c == '{' {
|
||||
if !iter.incrementDepth() {
|
||||
return false
|
||||
}
|
||||
c = iter.nextToken()
|
||||
if c == '"' {
|
||||
iter.unreadByte()
|
||||
field = iter.ReadString()
|
||||
c = iter.nextToken()
|
||||
if c != ':' {
|
||||
iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c}))
|
||||
}
|
||||
if !callback(iter, field) {
|
||||
iter.decrementDepth()
|
||||
return false
|
||||
}
|
||||
c = iter.nextToken()
|
||||
for c == ',' {
|
||||
field = iter.ReadString()
|
||||
c = iter.nextToken()
|
||||
if c != ':' {
|
||||
iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c}))
|
||||
}
|
||||
if !callback(iter, field) {
|
||||
iter.decrementDepth()
|
||||
return false
|
||||
}
|
||||
c = iter.nextToken()
|
||||
}
|
||||
if c != '}' {
|
||||
iter.ReportError("ReadObjectCB", `object not ended with }`)
|
||||
iter.decrementDepth()
|
||||
return false
|
||||
}
|
||||
return iter.decrementDepth()
|
||||
}
|
||||
if c == '}' {
|
||||
return iter.decrementDepth()
|
||||
}
|
||||
iter.ReportError("ReadObjectCB", `expect " after {, but found `+string([]byte{c}))
|
||||
iter.decrementDepth()
|
||||
return false
|
||||
}
|
||||
if c == 'n' {
|
||||
iter.skipThreeBytes('u', 'l', 'l')
|
||||
return true // null
|
||||
}
|
||||
iter.ReportError("ReadObjectCB", `expect { or n, but found `+string([]byte{c}))
|
||||
return false
|
||||
}
|
||||
|
||||
// ReadMapCB read map with callback, the key can be any string
|
||||
func (iter *Iterator) ReadMapCB(callback func(*Iterator, string) bool) bool {
|
||||
c := iter.nextToken()
|
||||
if c == '{' {
|
||||
if !iter.incrementDepth() {
|
||||
return false
|
||||
}
|
||||
c = iter.nextToken()
|
||||
if c == '"' {
|
||||
iter.unreadByte()
|
||||
field := iter.ReadString()
|
||||
if iter.nextToken() != ':' {
|
||||
iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c}))
|
||||
iter.decrementDepth()
|
||||
return false
|
||||
}
|
||||
if !callback(iter, field) {
|
||||
iter.decrementDepth()
|
||||
return false
|
||||
}
|
||||
c = iter.nextToken()
|
||||
for c == ',' {
|
||||
field = iter.ReadString()
|
||||
if iter.nextToken() != ':' {
|
||||
iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c}))
|
||||
iter.decrementDepth()
|
||||
return false
|
||||
}
|
||||
if !callback(iter, field) {
|
||||
iter.decrementDepth()
|
||||
return false
|
||||
}
|
||||
c = iter.nextToken()
|
||||
}
|
||||
if c != '}' {
|
||||
iter.ReportError("ReadMapCB", `object not ended with }`)
|
||||
iter.decrementDepth()
|
||||
return false
|
||||
}
|
||||
return iter.decrementDepth()
|
||||
}
|
||||
if c == '}' {
|
||||
return iter.decrementDepth()
|
||||
}
|
||||
iter.ReportError("ReadMapCB", `expect " after {, but found `+string([]byte{c}))
|
||||
iter.decrementDepth()
|
||||
return false
|
||||
}
|
||||
if c == 'n' {
|
||||
iter.skipThreeBytes('u', 'l', 'l')
|
||||
return true // null
|
||||
}
|
||||
iter.ReportError("ReadMapCB", `expect { or n, but found `+string([]byte{c}))
|
||||
return false
|
||||
}
|
||||
|
||||
func (iter *Iterator) readObjectStart() bool {
|
||||
c := iter.nextToken()
|
||||
if c == '{' {
|
||||
c = iter.nextToken()
|
||||
if c == '}' {
|
||||
return false
|
||||
}
|
||||
iter.unreadByte()
|
||||
return true
|
||||
} else if c == 'n' {
|
||||
iter.skipThreeBytes('u', 'l', 'l')
|
||||
return false
|
||||
}
|
||||
iter.ReportError("readObjectStart", "expect { or n, but found "+string([]byte{c}))
|
||||
return false
|
||||
}
|
||||
|
||||
func (iter *Iterator) readObjectFieldAsBytes() (ret []byte) {
|
||||
str := iter.ReadStringAsSlice()
|
||||
if iter.skipWhitespacesWithoutLoadMore() {
|
||||
if ret == nil {
|
||||
ret = make([]byte, len(str))
|
||||
copy(ret, str)
|
||||
}
|
||||
if !iter.loadMore() {
|
||||
return
|
||||
}
|
||||
}
|
||||
if iter.buf[iter.head] != ':' {
|
||||
iter.ReportError("readObjectFieldAsBytes", "expect : after object field, but found "+string([]byte{iter.buf[iter.head]}))
|
||||
return
|
||||
}
|
||||
iter.head++
|
||||
if iter.skipWhitespacesWithoutLoadMore() {
|
||||
if ret == nil {
|
||||
ret = make([]byte, len(str))
|
||||
copy(ret, str)
|
||||
}
|
||||
if !iter.loadMore() {
|
||||
return
|
||||
}
|
||||
}
|
||||
if ret == nil {
|
||||
return str
|
||||
}
|
||||
return ret
|
||||
}
|
|
@ -0,0 +1,130 @@
|
|||
package jsoniter
|
||||
|
||||
import "fmt"
|
||||
|
||||
// ReadNil reads a json object as nil and
|
||||
// returns whether it's a nil or not
|
||||
func (iter *Iterator) ReadNil() (ret bool) {
|
||||
c := iter.nextToken()
|
||||
if c == 'n' {
|
||||
iter.skipThreeBytes('u', 'l', 'l') // null
|
||||
return true
|
||||
}
|
||||
iter.unreadByte()
|
||||
return false
|
||||
}
|
||||
|
||||
// ReadBool reads a json object as BoolValue
|
||||
func (iter *Iterator) ReadBool() (ret bool) {
|
||||
c := iter.nextToken()
|
||||
if c == 't' {
|
||||
iter.skipThreeBytes('r', 'u', 'e')
|
||||
return true
|
||||
}
|
||||
if c == 'f' {
|
||||
iter.skipFourBytes('a', 'l', 's', 'e')
|
||||
return false
|
||||
}
|
||||
iter.ReportError("ReadBool", "expect t or f, but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
|
||||
// SkipAndReturnBytes skip next JSON element, and return its content as []byte.
|
||||
// The []byte can be kept, it is a copy of data.
|
||||
func (iter *Iterator) SkipAndReturnBytes() []byte {
|
||||
iter.startCapture(iter.head)
|
||||
iter.Skip()
|
||||
return iter.stopCapture()
|
||||
}
|
||||
|
||||
// SkipAndAppendBytes skips next JSON element and appends its content to
|
||||
// buffer, returning the result.
|
||||
func (iter *Iterator) SkipAndAppendBytes(buf []byte) []byte {
|
||||
iter.startCaptureTo(buf, iter.head)
|
||||
iter.Skip()
|
||||
return iter.stopCapture()
|
||||
}
|
||||
|
||||
func (iter *Iterator) startCaptureTo(buf []byte, captureStartedAt int) {
|
||||
if iter.captured != nil {
|
||||
panic("already in capture mode")
|
||||
}
|
||||
iter.captureStartedAt = captureStartedAt
|
||||
iter.captured = buf
|
||||
}
|
||||
|
||||
func (iter *Iterator) startCapture(captureStartedAt int) {
|
||||
iter.startCaptureTo(make([]byte, 0, 32), captureStartedAt)
|
||||
}
|
||||
|
||||
func (iter *Iterator) stopCapture() []byte {
|
||||
if iter.captured == nil {
|
||||
panic("not in capture mode")
|
||||
}
|
||||
captured := iter.captured
|
||||
remaining := iter.buf[iter.captureStartedAt:iter.head]
|
||||
iter.captureStartedAt = -1
|
||||
iter.captured = nil
|
||||
return append(captured, remaining...)
|
||||
}
|
||||
|
||||
// Skip skips a json object and positions to relatively the next json object
|
||||
func (iter *Iterator) Skip() {
|
||||
c := iter.nextToken()
|
||||
switch c {
|
||||
case '"':
|
||||
iter.skipString()
|
||||
case 'n':
|
||||
iter.skipThreeBytes('u', 'l', 'l') // null
|
||||
case 't':
|
||||
iter.skipThreeBytes('r', 'u', 'e') // true
|
||||
case 'f':
|
||||
iter.skipFourBytes('a', 'l', 's', 'e') // false
|
||||
case '0':
|
||||
iter.unreadByte()
|
||||
iter.ReadFloat32()
|
||||
case '-', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
||||
iter.skipNumber()
|
||||
case '[':
|
||||
iter.skipArray()
|
||||
case '{':
|
||||
iter.skipObject()
|
||||
default:
|
||||
iter.ReportError("Skip", fmt.Sprintf("do not know how to skip: %v", c))
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
func (iter *Iterator) skipFourBytes(b1, b2, b3, b4 byte) {
|
||||
if iter.readByte() != b1 {
|
||||
iter.ReportError("skipFourBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3, b4})))
|
||||
return
|
||||
}
|
||||
if iter.readByte() != b2 {
|
||||
iter.ReportError("skipFourBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3, b4})))
|
||||
return
|
||||
}
|
||||
if iter.readByte() != b3 {
|
||||
iter.ReportError("skipFourBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3, b4})))
|
||||
return
|
||||
}
|
||||
if iter.readByte() != b4 {
|
||||
iter.ReportError("skipFourBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3, b4})))
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
func (iter *Iterator) skipThreeBytes(b1, b2, b3 byte) {
|
||||
if iter.readByte() != b1 {
|
||||
iter.ReportError("skipThreeBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3})))
|
||||
return
|
||||
}
|
||||
if iter.readByte() != b2 {
|
||||
iter.ReportError("skipThreeBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3})))
|
||||
return
|
||||
}
|
||||
if iter.readByte() != b3 {
|
||||
iter.ReportError("skipThreeBytes", fmt.Sprintf("expect %s", string([]byte{b1, b2, b3})))
|
||||
return
|
||||
}
|
||||
}
|
|
@ -0,0 +1,163 @@
|
|||
//+build jsoniter_sloppy
|
||||
|
||||
package jsoniter
|
||||
|
||||
// sloppy but faster implementation, do not validate the input json
|
||||
|
||||
func (iter *Iterator) skipNumber() {
|
||||
for {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
c := iter.buf[i]
|
||||
switch c {
|
||||
case ' ', '\n', '\r', '\t', ',', '}', ']':
|
||||
iter.head = i
|
||||
return
|
||||
}
|
||||
}
|
||||
if !iter.loadMore() {
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (iter *Iterator) skipArray() {
|
||||
level := 1
|
||||
if !iter.incrementDepth() {
|
||||
return
|
||||
}
|
||||
for {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
switch iter.buf[i] {
|
||||
case '"': // If inside string, skip it
|
||||
iter.head = i + 1
|
||||
iter.skipString()
|
||||
i = iter.head - 1 // it will be i++ soon
|
||||
case '[': // If open symbol, increase level
|
||||
level++
|
||||
if !iter.incrementDepth() {
|
||||
return
|
||||
}
|
||||
case ']': // If close symbol, increase level
|
||||
level--
|
||||
if !iter.decrementDepth() {
|
||||
return
|
||||
}
|
||||
|
||||
// If we have returned to the original level, we're done
|
||||
if level == 0 {
|
||||
iter.head = i + 1
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
if !iter.loadMore() {
|
||||
iter.ReportError("skipObject", "incomplete array")
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (iter *Iterator) skipObject() {
|
||||
level := 1
|
||||
if !iter.incrementDepth() {
|
||||
return
|
||||
}
|
||||
|
||||
for {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
switch iter.buf[i] {
|
||||
case '"': // If inside string, skip it
|
||||
iter.head = i + 1
|
||||
iter.skipString()
|
||||
i = iter.head - 1 // it will be i++ soon
|
||||
case '{': // If open symbol, increase level
|
||||
level++
|
||||
if !iter.incrementDepth() {
|
||||
return
|
||||
}
|
||||
case '}': // If close symbol, increase level
|
||||
level--
|
||||
if !iter.decrementDepth() {
|
||||
return
|
||||
}
|
||||
|
||||
// If we have returned to the original level, we're done
|
||||
if level == 0 {
|
||||
iter.head = i + 1
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
if !iter.loadMore() {
|
||||
iter.ReportError("skipObject", "incomplete object")
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (iter *Iterator) skipString() {
|
||||
for {
|
||||
end, escaped := iter.findStringEnd()
|
||||
if end == -1 {
|
||||
if !iter.loadMore() {
|
||||
iter.ReportError("skipString", "incomplete string")
|
||||
return
|
||||
}
|
||||
if escaped {
|
||||
iter.head = 1 // skip the first char as last char read is \
|
||||
}
|
||||
} else {
|
||||
iter.head = end
|
||||
return
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// adapted from: https://github.com/buger/jsonparser/blob/master/parser.go
|
||||
// Tries to find the end of string
|
||||
// Support if string contains escaped quote symbols.
|
||||
func (iter *Iterator) findStringEnd() (int, bool) {
|
||||
escaped := false
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
c := iter.buf[i]
|
||||
if c == '"' {
|
||||
if !escaped {
|
||||
return i + 1, false
|
||||
}
|
||||
j := i - 1
|
||||
for {
|
||||
if j < iter.head || iter.buf[j] != '\\' {
|
||||
// even number of backslashes
|
||||
// either end of buffer, or " found
|
||||
return i + 1, true
|
||||
}
|
||||
j--
|
||||
if j < iter.head || iter.buf[j] != '\\' {
|
||||
// odd number of backslashes
|
||||
// it is \" or \\\"
|
||||
break
|
||||
}
|
||||
j--
|
||||
}
|
||||
} else if c == '\\' {
|
||||
escaped = true
|
||||
}
|
||||
}
|
||||
j := iter.tail - 1
|
||||
for {
|
||||
if j < iter.head || iter.buf[j] != '\\' {
|
||||
// even number of backslashes
|
||||
// either end of buffer, or " found
|
||||
return -1, false // do not end with \
|
||||
}
|
||||
j--
|
||||
if j < iter.head || iter.buf[j] != '\\' {
|
||||
// odd number of backslashes
|
||||
// it is \" or \\\"
|
||||
break
|
||||
}
|
||||
j--
|
||||
|
||||
}
|
||||
return -1, true // end with \
|
||||
}
|
|
@ -0,0 +1,99 @@
|
|||
//+build !jsoniter_sloppy
|
||||
|
||||
package jsoniter
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"io"
|
||||
)
|
||||
|
||||
func (iter *Iterator) skipNumber() {
|
||||
if !iter.trySkipNumber() {
|
||||
iter.unreadByte()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
return
|
||||
}
|
||||
iter.ReadFloat64()
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
iter.Error = nil
|
||||
iter.ReadBigFloat()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (iter *Iterator) trySkipNumber() bool {
|
||||
dotFound := false
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
c := iter.buf[i]
|
||||
switch c {
|
||||
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
||||
case '.':
|
||||
if dotFound {
|
||||
iter.ReportError("validateNumber", `more than one dot found in number`)
|
||||
return true // already failed
|
||||
}
|
||||
if i+1 == iter.tail {
|
||||
return false
|
||||
}
|
||||
c = iter.buf[i+1]
|
||||
switch c {
|
||||
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9':
|
||||
default:
|
||||
iter.ReportError("validateNumber", `missing digit after dot`)
|
||||
return true // already failed
|
||||
}
|
||||
dotFound = true
|
||||
default:
|
||||
switch c {
|
||||
case ',', ']', '}', ' ', '\t', '\n', '\r':
|
||||
if iter.head == i {
|
||||
return false // if - without following digits
|
||||
}
|
||||
iter.head = i
|
||||
return true // must be valid
|
||||
}
|
||||
return false // may be invalid
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (iter *Iterator) skipString() {
|
||||
if !iter.trySkipString() {
|
||||
iter.unreadByte()
|
||||
iter.ReadString()
|
||||
}
|
||||
}
|
||||
|
||||
func (iter *Iterator) trySkipString() bool {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
c := iter.buf[i]
|
||||
if c == '"' {
|
||||
iter.head = i + 1
|
||||
return true // valid
|
||||
} else if c == '\\' {
|
||||
return false
|
||||
} else if c < ' ' {
|
||||
iter.ReportError("trySkipString",
|
||||
fmt.Sprintf(`invalid control character found: %d`, c))
|
||||
return true // already failed
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
func (iter *Iterator) skipObject() {
|
||||
iter.unreadByte()
|
||||
iter.ReadObjectCB(func(iter *Iterator, field string) bool {
|
||||
iter.Skip()
|
||||
return true
|
||||
})
|
||||
}
|
||||
|
||||
func (iter *Iterator) skipArray() {
|
||||
iter.unreadByte()
|
||||
iter.ReadArrayCB(func(iter *Iterator) bool {
|
||||
iter.Skip()
|
||||
return true
|
||||
})
|
||||
}
|
|
@ -0,0 +1,215 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"unicode/utf16"
|
||||
)
|
||||
|
||||
// ReadString read string from iterator
|
||||
func (iter *Iterator) ReadString() (ret string) {
|
||||
c := iter.nextToken()
|
||||
if c == '"' {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
c := iter.buf[i]
|
||||
if c == '"' {
|
||||
ret = string(iter.buf[iter.head:i])
|
||||
iter.head = i + 1
|
||||
return ret
|
||||
} else if c == '\\' {
|
||||
break
|
||||
} else if c < ' ' {
|
||||
iter.ReportError("ReadString",
|
||||
fmt.Sprintf(`invalid control character found: %d`, c))
|
||||
return
|
||||
}
|
||||
}
|
||||
return iter.readStringSlowPath()
|
||||
} else if c == 'n' {
|
||||
iter.skipThreeBytes('u', 'l', 'l')
|
||||
return ""
|
||||
}
|
||||
iter.ReportError("ReadString", `expects " or n, but found `+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
|
||||
func (iter *Iterator) readStringSlowPath() (ret string) {
|
||||
var str []byte
|
||||
var c byte
|
||||
for iter.Error == nil {
|
||||
c = iter.readByte()
|
||||
if c == '"' {
|
||||
return string(str)
|
||||
}
|
||||
if c == '\\' {
|
||||
c = iter.readByte()
|
||||
str = iter.readEscapedChar(c, str)
|
||||
} else {
|
||||
str = append(str, c)
|
||||
}
|
||||
}
|
||||
iter.ReportError("readStringSlowPath", "unexpected end of input")
|
||||
return
|
||||
}
|
||||
|
||||
func (iter *Iterator) readEscapedChar(c byte, str []byte) []byte {
|
||||
switch c {
|
||||
case 'u':
|
||||
r := iter.readU4()
|
||||
if utf16.IsSurrogate(r) {
|
||||
c = iter.readByte()
|
||||
if iter.Error != nil {
|
||||
return nil
|
||||
}
|
||||
if c != '\\' {
|
||||
iter.unreadByte()
|
||||
str = appendRune(str, r)
|
||||
return str
|
||||
}
|
||||
c = iter.readByte()
|
||||
if iter.Error != nil {
|
||||
return nil
|
||||
}
|
||||
if c != 'u' {
|
||||
str = appendRune(str, r)
|
||||
return iter.readEscapedChar(c, str)
|
||||
}
|
||||
r2 := iter.readU4()
|
||||
if iter.Error != nil {
|
||||
return nil
|
||||
}
|
||||
combined := utf16.DecodeRune(r, r2)
|
||||
if combined == '\uFFFD' {
|
||||
str = appendRune(str, r)
|
||||
str = appendRune(str, r2)
|
||||
} else {
|
||||
str = appendRune(str, combined)
|
||||
}
|
||||
} else {
|
||||
str = appendRune(str, r)
|
||||
}
|
||||
case '"':
|
||||
str = append(str, '"')
|
||||
case '\\':
|
||||
str = append(str, '\\')
|
||||
case '/':
|
||||
str = append(str, '/')
|
||||
case 'b':
|
||||
str = append(str, '\b')
|
||||
case 'f':
|
||||
str = append(str, '\f')
|
||||
case 'n':
|
||||
str = append(str, '\n')
|
||||
case 'r':
|
||||
str = append(str, '\r')
|
||||
case 't':
|
||||
str = append(str, '\t')
|
||||
default:
|
||||
iter.ReportError("readEscapedChar",
|
||||
`invalid escape char after \`)
|
||||
return nil
|
||||
}
|
||||
return str
|
||||
}
|
||||
|
||||
// ReadStringAsSlice read string from iterator without copying into string form.
|
||||
// The []byte can not be kept, as it will change after next iterator call.
|
||||
func (iter *Iterator) ReadStringAsSlice() (ret []byte) {
|
||||
c := iter.nextToken()
|
||||
if c == '"' {
|
||||
for i := iter.head; i < iter.tail; i++ {
|
||||
// require ascii string and no escape
|
||||
// for: field name, base64, number
|
||||
if iter.buf[i] == '"' {
|
||||
// fast path: reuse the underlying buffer
|
||||
ret = iter.buf[iter.head:i]
|
||||
iter.head = i + 1
|
||||
return ret
|
||||
}
|
||||
}
|
||||
readLen := iter.tail - iter.head
|
||||
copied := make([]byte, readLen, readLen*2)
|
||||
copy(copied, iter.buf[iter.head:iter.tail])
|
||||
iter.head = iter.tail
|
||||
for iter.Error == nil {
|
||||
c := iter.readByte()
|
||||
if c == '"' {
|
||||
return copied
|
||||
}
|
||||
copied = append(copied, c)
|
||||
}
|
||||
return copied
|
||||
}
|
||||
iter.ReportError("ReadStringAsSlice", `expects " or n, but found `+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
|
||||
func (iter *Iterator) readU4() (ret rune) {
|
||||
for i := 0; i < 4; i++ {
|
||||
c := iter.readByte()
|
||||
if iter.Error != nil {
|
||||
return
|
||||
}
|
||||
if c >= '0' && c <= '9' {
|
||||
ret = ret*16 + rune(c-'0')
|
||||
} else if c >= 'a' && c <= 'f' {
|
||||
ret = ret*16 + rune(c-'a'+10)
|
||||
} else if c >= 'A' && c <= 'F' {
|
||||
ret = ret*16 + rune(c-'A'+10)
|
||||
} else {
|
||||
iter.ReportError("readU4", "expects 0~9 or a~f, but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
}
|
||||
return ret
|
||||
}
|
||||
|
||||
const (
|
||||
t1 = 0x00 // 0000 0000
|
||||
tx = 0x80 // 1000 0000
|
||||
t2 = 0xC0 // 1100 0000
|
||||
t3 = 0xE0 // 1110 0000
|
||||
t4 = 0xF0 // 1111 0000
|
||||
t5 = 0xF8 // 1111 1000
|
||||
|
||||
maskx = 0x3F // 0011 1111
|
||||
mask2 = 0x1F // 0001 1111
|
||||
mask3 = 0x0F // 0000 1111
|
||||
mask4 = 0x07 // 0000 0111
|
||||
|
||||
rune1Max = 1<<7 - 1
|
||||
rune2Max = 1<<11 - 1
|
||||
rune3Max = 1<<16 - 1
|
||||
|
||||
surrogateMin = 0xD800
|
||||
surrogateMax = 0xDFFF
|
||||
|
||||
maxRune = '\U0010FFFF' // Maximum valid Unicode code point.
|
||||
runeError = '\uFFFD' // the "error" Rune or "Unicode replacement character"
|
||||
)
|
||||
|
||||
func appendRune(p []byte, r rune) []byte {
|
||||
// Negative values are erroneous. Making it unsigned addresses the problem.
|
||||
switch i := uint32(r); {
|
||||
case i <= rune1Max:
|
||||
p = append(p, byte(r))
|
||||
return p
|
||||
case i <= rune2Max:
|
||||
p = append(p, t2|byte(r>>6))
|
||||
p = append(p, tx|byte(r)&maskx)
|
||||
return p
|
||||
case i > maxRune, surrogateMin <= i && i <= surrogateMax:
|
||||
r = runeError
|
||||
fallthrough
|
||||
case i <= rune3Max:
|
||||
p = append(p, t3|byte(r>>12))
|
||||
p = append(p, tx|byte(r>>6)&maskx)
|
||||
p = append(p, tx|byte(r)&maskx)
|
||||
return p
|
||||
default:
|
||||
p = append(p, t4|byte(r>>18))
|
||||
p = append(p, tx|byte(r>>12)&maskx)
|
||||
p = append(p, tx|byte(r>>6)&maskx)
|
||||
p = append(p, tx|byte(r)&maskx)
|
||||
return p
|
||||
}
|
||||
}
|
|
@ -0,0 +1,18 @@
|
|||
// Package jsoniter implements encoding and decoding of JSON as defined in
|
||||
// RFC 4627 and provides interfaces with identical syntax of standard lib encoding/json.
|
||||
// Converting from encoding/json to jsoniter is no more than replacing the package with jsoniter
|
||||
// and variable type declarations (if any).
|
||||
// jsoniter interfaces gives 100% compatibility with code using standard lib.
|
||||
//
|
||||
// "JSON and Go"
|
||||
// (https://golang.org/doc/articles/json_and_go.html)
|
||||
// gives a description of how Marshal/Unmarshal operate
|
||||
// between arbitrary or predefined json objects and bytes,
|
||||
// and it applies to jsoniter.Marshal/Unmarshal as well.
|
||||
//
|
||||
// Besides, jsoniter.Iterator provides a different set of interfaces
|
||||
// iterating given bytes/string/reader
|
||||
// and yielding parsed elements one by one.
|
||||
// This set of interfaces reads input as required and gives
|
||||
// better performance.
|
||||
package jsoniter
|
|
@ -0,0 +1,42 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"io"
|
||||
)
|
||||
|
||||
// IteratorPool a thread safe pool of iterators with same configuration
|
||||
type IteratorPool interface {
|
||||
BorrowIterator(data []byte) *Iterator
|
||||
ReturnIterator(iter *Iterator)
|
||||
}
|
||||
|
||||
// StreamPool a thread safe pool of streams with same configuration
|
||||
type StreamPool interface {
|
||||
BorrowStream(writer io.Writer) *Stream
|
||||
ReturnStream(stream *Stream)
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) BorrowStream(writer io.Writer) *Stream {
|
||||
stream := cfg.streamPool.Get().(*Stream)
|
||||
stream.Reset(writer)
|
||||
return stream
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) ReturnStream(stream *Stream) {
|
||||
stream.out = nil
|
||||
stream.Error = nil
|
||||
stream.Attachment = nil
|
||||
cfg.streamPool.Put(stream)
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) BorrowIterator(data []byte) *Iterator {
|
||||
iter := cfg.iteratorPool.Get().(*Iterator)
|
||||
iter.ResetBytes(data)
|
||||
return iter
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) ReturnIterator(iter *Iterator) {
|
||||
iter.Error = nil
|
||||
iter.Attachment = nil
|
||||
cfg.iteratorPool.Put(iter)
|
||||
}
|
|
@ -0,0 +1,337 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"reflect"
|
||||
"unsafe"
|
||||
|
||||
"github.com/modern-go/reflect2"
|
||||
)
|
||||
|
||||
// ValDecoder is an internal type registered to cache as needed.
|
||||
// Don't confuse jsoniter.ValDecoder with json.Decoder.
|
||||
// For json.Decoder's adapter, refer to jsoniter.AdapterDecoder(todo link).
|
||||
//
|
||||
// Reflection on type to create decoders, which is then cached
|
||||
// Reflection on value is avoided as we can, as the reflect.Value itself will allocate, with following exceptions
|
||||
// 1. create instance of new value, for example *int will need a int to be allocated
|
||||
// 2. append to slice, if the existing cap is not enough, allocate will be done using Reflect.New
|
||||
// 3. assignment to map, both key and value will be reflect.Value
|
||||
// For a simple struct binding, it will be reflect.Value free and allocation free
|
||||
type ValDecoder interface {
|
||||
Decode(ptr unsafe.Pointer, iter *Iterator)
|
||||
}
|
||||
|
||||
// ValEncoder is an internal type registered to cache as needed.
|
||||
// Don't confuse jsoniter.ValEncoder with json.Encoder.
|
||||
// For json.Encoder's adapter, refer to jsoniter.AdapterEncoder(todo godoc link).
|
||||
type ValEncoder interface {
|
||||
IsEmpty(ptr unsafe.Pointer) bool
|
||||
Encode(ptr unsafe.Pointer, stream *Stream)
|
||||
}
|
||||
|
||||
type checkIsEmpty interface {
|
||||
IsEmpty(ptr unsafe.Pointer) bool
|
||||
}
|
||||
|
||||
type ctx struct {
|
||||
*frozenConfig
|
||||
prefix string
|
||||
encoders map[reflect2.Type]ValEncoder
|
||||
decoders map[reflect2.Type]ValDecoder
|
||||
}
|
||||
|
||||
func (b *ctx) caseSensitive() bool {
|
||||
if b.frozenConfig == nil {
|
||||
// default is case-insensitive
|
||||
return false
|
||||
}
|
||||
return b.frozenConfig.caseSensitive
|
||||
}
|
||||
|
||||
func (b *ctx) append(prefix string) *ctx {
|
||||
return &ctx{
|
||||
frozenConfig: b.frozenConfig,
|
||||
prefix: b.prefix + " " + prefix,
|
||||
encoders: b.encoders,
|
||||
decoders: b.decoders,
|
||||
}
|
||||
}
|
||||
|
||||
// ReadVal copy the underlying JSON into go interface, same as json.Unmarshal
|
||||
func (iter *Iterator) ReadVal(obj interface{}) {
|
||||
depth := iter.depth
|
||||
cacheKey := reflect2.RTypeOf(obj)
|
||||
decoder := iter.cfg.getDecoderFromCache(cacheKey)
|
||||
if decoder == nil {
|
||||
typ := reflect2.TypeOf(obj)
|
||||
if typ.Kind() != reflect.Ptr {
|
||||
iter.ReportError("ReadVal", "can only unmarshal into pointer")
|
||||
return
|
||||
}
|
||||
decoder = iter.cfg.DecoderOf(typ)
|
||||
}
|
||||
ptr := reflect2.PtrOf(obj)
|
||||
if ptr == nil {
|
||||
iter.ReportError("ReadVal", "can not read into nil pointer")
|
||||
return
|
||||
}
|
||||
decoder.Decode(ptr, iter)
|
||||
if iter.depth != depth {
|
||||
iter.ReportError("ReadVal", "unexpected mismatched nesting")
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// WriteVal copy the go interface into underlying JSON, same as json.Marshal
|
||||
func (stream *Stream) WriteVal(val interface{}) {
|
||||
if nil == val {
|
||||
stream.WriteNil()
|
||||
return
|
||||
}
|
||||
cacheKey := reflect2.RTypeOf(val)
|
||||
encoder := stream.cfg.getEncoderFromCache(cacheKey)
|
||||
if encoder == nil {
|
||||
typ := reflect2.TypeOf(val)
|
||||
encoder = stream.cfg.EncoderOf(typ)
|
||||
}
|
||||
encoder.Encode(reflect2.PtrOf(val), stream)
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) DecoderOf(typ reflect2.Type) ValDecoder {
|
||||
cacheKey := typ.RType()
|
||||
decoder := cfg.getDecoderFromCache(cacheKey)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
ctx := &ctx{
|
||||
frozenConfig: cfg,
|
||||
prefix: "",
|
||||
decoders: map[reflect2.Type]ValDecoder{},
|
||||
encoders: map[reflect2.Type]ValEncoder{},
|
||||
}
|
||||
ptrType := typ.(*reflect2.UnsafePtrType)
|
||||
decoder = decoderOfType(ctx, ptrType.Elem())
|
||||
cfg.addDecoderToCache(cacheKey, decoder)
|
||||
return decoder
|
||||
}
|
||||
|
||||
func decoderOfType(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
decoder := getTypeDecoderFromExtension(ctx, typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
decoder = createDecoderOfType(ctx, typ)
|
||||
for _, extension := range extensions {
|
||||
decoder = extension.DecorateDecoder(typ, decoder)
|
||||
}
|
||||
decoder = ctx.decoderExtension.DecorateDecoder(typ, decoder)
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
decoder = extension.DecorateDecoder(typ, decoder)
|
||||
}
|
||||
return decoder
|
||||
}
|
||||
|
||||
func createDecoderOfType(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
decoder := ctx.decoders[typ]
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
placeholder := &placeholderDecoder{}
|
||||
ctx.decoders[typ] = placeholder
|
||||
decoder = _createDecoderOfType(ctx, typ)
|
||||
placeholder.decoder = decoder
|
||||
return decoder
|
||||
}
|
||||
|
||||
func _createDecoderOfType(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
decoder := createDecoderOfJsonRawMessage(ctx, typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
decoder = createDecoderOfJsonNumber(ctx, typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
decoder = createDecoderOfMarshaler(ctx, typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
decoder = createDecoderOfAny(ctx, typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
decoder = createDecoderOfNative(ctx, typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
switch typ.Kind() {
|
||||
case reflect.Interface:
|
||||
ifaceType, isIFace := typ.(*reflect2.UnsafeIFaceType)
|
||||
if isIFace {
|
||||
return &ifaceDecoder{valType: ifaceType}
|
||||
}
|
||||
return &efaceDecoder{}
|
||||
case reflect.Struct:
|
||||
return decoderOfStruct(ctx, typ)
|
||||
case reflect.Array:
|
||||
return decoderOfArray(ctx, typ)
|
||||
case reflect.Slice:
|
||||
return decoderOfSlice(ctx, typ)
|
||||
case reflect.Map:
|
||||
return decoderOfMap(ctx, typ)
|
||||
case reflect.Ptr:
|
||||
return decoderOfOptional(ctx, typ)
|
||||
default:
|
||||
return &lazyErrorDecoder{err: fmt.Errorf("%s%s is unsupported type", ctx.prefix, typ.String())}
|
||||
}
|
||||
}
|
||||
|
||||
func (cfg *frozenConfig) EncoderOf(typ reflect2.Type) ValEncoder {
|
||||
cacheKey := typ.RType()
|
||||
encoder := cfg.getEncoderFromCache(cacheKey)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
ctx := &ctx{
|
||||
frozenConfig: cfg,
|
||||
prefix: "",
|
||||
decoders: map[reflect2.Type]ValDecoder{},
|
||||
encoders: map[reflect2.Type]ValEncoder{},
|
||||
}
|
||||
encoder = encoderOfType(ctx, typ)
|
||||
if typ.LikePtr() {
|
||||
encoder = &onePtrEncoder{encoder}
|
||||
}
|
||||
cfg.addEncoderToCache(cacheKey, encoder)
|
||||
return encoder
|
||||
}
|
||||
|
||||
type onePtrEncoder struct {
|
||||
encoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *onePtrEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return encoder.encoder.IsEmpty(unsafe.Pointer(&ptr))
|
||||
}
|
||||
|
||||
func (encoder *onePtrEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
encoder.encoder.Encode(unsafe.Pointer(&ptr), stream)
|
||||
}
|
||||
|
||||
func encoderOfType(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
encoder := getTypeEncoderFromExtension(ctx, typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
encoder = createEncoderOfType(ctx, typ)
|
||||
for _, extension := range extensions {
|
||||
encoder = extension.DecorateEncoder(typ, encoder)
|
||||
}
|
||||
encoder = ctx.encoderExtension.DecorateEncoder(typ, encoder)
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
encoder = extension.DecorateEncoder(typ, encoder)
|
||||
}
|
||||
return encoder
|
||||
}
|
||||
|
||||
func createEncoderOfType(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
encoder := ctx.encoders[typ]
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
placeholder := &placeholderEncoder{}
|
||||
ctx.encoders[typ] = placeholder
|
||||
encoder = _createEncoderOfType(ctx, typ)
|
||||
placeholder.encoder = encoder
|
||||
return encoder
|
||||
}
|
||||
func _createEncoderOfType(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
encoder := createEncoderOfJsonRawMessage(ctx, typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
encoder = createEncoderOfJsonNumber(ctx, typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
encoder = createEncoderOfMarshaler(ctx, typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
encoder = createEncoderOfAny(ctx, typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
encoder = createEncoderOfNative(ctx, typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
kind := typ.Kind()
|
||||
switch kind {
|
||||
case reflect.Interface:
|
||||
return &dynamicEncoder{typ}
|
||||
case reflect.Struct:
|
||||
return encoderOfStruct(ctx, typ)
|
||||
case reflect.Array:
|
||||
return encoderOfArray(ctx, typ)
|
||||
case reflect.Slice:
|
||||
return encoderOfSlice(ctx, typ)
|
||||
case reflect.Map:
|
||||
return encoderOfMap(ctx, typ)
|
||||
case reflect.Ptr:
|
||||
return encoderOfOptional(ctx, typ)
|
||||
default:
|
||||
return &lazyErrorEncoder{err: fmt.Errorf("%s%s is unsupported type", ctx.prefix, typ.String())}
|
||||
}
|
||||
}
|
||||
|
||||
type lazyErrorDecoder struct {
|
||||
err error
|
||||
}
|
||||
|
||||
func (decoder *lazyErrorDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if iter.WhatIsNext() != NilValue {
|
||||
if iter.Error == nil {
|
||||
iter.Error = decoder.err
|
||||
}
|
||||
} else {
|
||||
iter.Skip()
|
||||
}
|
||||
}
|
||||
|
||||
type lazyErrorEncoder struct {
|
||||
err error
|
||||
}
|
||||
|
||||
func (encoder *lazyErrorEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
if ptr == nil {
|
||||
stream.WriteNil()
|
||||
} else if stream.Error == nil {
|
||||
stream.Error = encoder.err
|
||||
}
|
||||
}
|
||||
|
||||
func (encoder *lazyErrorEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return false
|
||||
}
|
||||
|
||||
type placeholderDecoder struct {
|
||||
decoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *placeholderDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
decoder.decoder.Decode(ptr, iter)
|
||||
}
|
||||
|
||||
type placeholderEncoder struct {
|
||||
encoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *placeholderEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
encoder.encoder.Encode(ptr, stream)
|
||||
}
|
||||
|
||||
func (encoder *placeholderEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return encoder.encoder.IsEmpty(ptr)
|
||||
}
|
|
@ -0,0 +1,104 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/modern-go/reflect2"
|
||||
"io"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
func decoderOfArray(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
arrayType := typ.(*reflect2.UnsafeArrayType)
|
||||
decoder := decoderOfType(ctx.append("[arrayElem]"), arrayType.Elem())
|
||||
return &arrayDecoder{arrayType, decoder}
|
||||
}
|
||||
|
||||
func encoderOfArray(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
arrayType := typ.(*reflect2.UnsafeArrayType)
|
||||
if arrayType.Len() == 0 {
|
||||
return emptyArrayEncoder{}
|
||||
}
|
||||
encoder := encoderOfType(ctx.append("[arrayElem]"), arrayType.Elem())
|
||||
return &arrayEncoder{arrayType, encoder}
|
||||
}
|
||||
|
||||
type emptyArrayEncoder struct{}
|
||||
|
||||
func (encoder emptyArrayEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteEmptyArray()
|
||||
}
|
||||
|
||||
func (encoder emptyArrayEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return true
|
||||
}
|
||||
|
||||
type arrayEncoder struct {
|
||||
arrayType *reflect2.UnsafeArrayType
|
||||
elemEncoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *arrayEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteArrayStart()
|
||||
elemPtr := unsafe.Pointer(ptr)
|
||||
encoder.elemEncoder.Encode(elemPtr, stream)
|
||||
for i := 1; i < encoder.arrayType.Len(); i++ {
|
||||
stream.WriteMore()
|
||||
elemPtr = encoder.arrayType.UnsafeGetIndex(ptr, i)
|
||||
encoder.elemEncoder.Encode(elemPtr, stream)
|
||||
}
|
||||
stream.WriteArrayEnd()
|
||||
if stream.Error != nil && stream.Error != io.EOF {
|
||||
stream.Error = fmt.Errorf("%v: %s", encoder.arrayType, stream.Error.Error())
|
||||
}
|
||||
}
|
||||
|
||||
func (encoder *arrayEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return false
|
||||
}
|
||||
|
||||
type arrayDecoder struct {
|
||||
arrayType *reflect2.UnsafeArrayType
|
||||
elemDecoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *arrayDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
decoder.doDecode(ptr, iter)
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
iter.Error = fmt.Errorf("%v: %s", decoder.arrayType, iter.Error.Error())
|
||||
}
|
||||
}
|
||||
|
||||
func (decoder *arrayDecoder) doDecode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
c := iter.nextToken()
|
||||
arrayType := decoder.arrayType
|
||||
if c == 'n' {
|
||||
iter.skipThreeBytes('u', 'l', 'l')
|
||||
return
|
||||
}
|
||||
if c != '[' {
|
||||
iter.ReportError("decode array", "expect [ or n, but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
c = iter.nextToken()
|
||||
if c == ']' {
|
||||
return
|
||||
}
|
||||
iter.unreadByte()
|
||||
elemPtr := arrayType.UnsafeGetIndex(ptr, 0)
|
||||
decoder.elemDecoder.Decode(elemPtr, iter)
|
||||
length := 1
|
||||
for c = iter.nextToken(); c == ','; c = iter.nextToken() {
|
||||
if length >= arrayType.Len() {
|
||||
iter.Skip()
|
||||
continue
|
||||
}
|
||||
idx := length
|
||||
length += 1
|
||||
elemPtr = arrayType.UnsafeGetIndex(ptr, idx)
|
||||
decoder.elemDecoder.Decode(elemPtr, iter)
|
||||
}
|
||||
if c != ']' {
|
||||
iter.ReportError("decode array", "expect ], but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
}
|
|
@ -0,0 +1,70 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"github.com/modern-go/reflect2"
|
||||
"reflect"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
type dynamicEncoder struct {
|
||||
valType reflect2.Type
|
||||
}
|
||||
|
||||
func (encoder *dynamicEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
obj := encoder.valType.UnsafeIndirect(ptr)
|
||||
stream.WriteVal(obj)
|
||||
}
|
||||
|
||||
func (encoder *dynamicEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return encoder.valType.UnsafeIndirect(ptr) == nil
|
||||
}
|
||||
|
||||
type efaceDecoder struct {
|
||||
}
|
||||
|
||||
func (decoder *efaceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
pObj := (*interface{})(ptr)
|
||||
obj := *pObj
|
||||
if obj == nil {
|
||||
*pObj = iter.Read()
|
||||
return
|
||||
}
|
||||
typ := reflect2.TypeOf(obj)
|
||||
if typ.Kind() != reflect.Ptr {
|
||||
*pObj = iter.Read()
|
||||
return
|
||||
}
|
||||
ptrType := typ.(*reflect2.UnsafePtrType)
|
||||
ptrElemType := ptrType.Elem()
|
||||
if iter.WhatIsNext() == NilValue {
|
||||
if ptrElemType.Kind() != reflect.Ptr {
|
||||
iter.skipFourBytes('n', 'u', 'l', 'l')
|
||||
*pObj = nil
|
||||
return
|
||||
}
|
||||
}
|
||||
if reflect2.IsNil(obj) {
|
||||
obj := ptrElemType.New()
|
||||
iter.ReadVal(obj)
|
||||
*pObj = obj
|
||||
return
|
||||
}
|
||||
iter.ReadVal(obj)
|
||||
}
|
||||
|
||||
type ifaceDecoder struct {
|
||||
valType *reflect2.UnsafeIFaceType
|
||||
}
|
||||
|
||||
func (decoder *ifaceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if iter.ReadNil() {
|
||||
decoder.valType.UnsafeSet(ptr, decoder.valType.UnsafeNew())
|
||||
return
|
||||
}
|
||||
obj := decoder.valType.UnsafeIndirect(ptr)
|
||||
if reflect2.IsNil(obj) {
|
||||
iter.ReportError("decode non empty interface", "can not unmarshal into nil")
|
||||
return
|
||||
}
|
||||
iter.ReadVal(obj)
|
||||
}
|
|
@ -0,0 +1,483 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/modern-go/reflect2"
|
||||
"reflect"
|
||||
"sort"
|
||||
"strings"
|
||||
"unicode"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
var typeDecoders = map[string]ValDecoder{}
|
||||
var fieldDecoders = map[string]ValDecoder{}
|
||||
var typeEncoders = map[string]ValEncoder{}
|
||||
var fieldEncoders = map[string]ValEncoder{}
|
||||
var extensions = []Extension{}
|
||||
|
||||
// StructDescriptor describe how should we encode/decode the struct
|
||||
type StructDescriptor struct {
|
||||
Type reflect2.Type
|
||||
Fields []*Binding
|
||||
}
|
||||
|
||||
// GetField get one field from the descriptor by its name.
|
||||
// Can not use map here to keep field orders.
|
||||
func (structDescriptor *StructDescriptor) GetField(fieldName string) *Binding {
|
||||
for _, binding := range structDescriptor.Fields {
|
||||
if binding.Field.Name() == fieldName {
|
||||
return binding
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// Binding describe how should we encode/decode the struct field
|
||||
type Binding struct {
|
||||
levels []int
|
||||
Field reflect2.StructField
|
||||
FromNames []string
|
||||
ToNames []string
|
||||
Encoder ValEncoder
|
||||
Decoder ValDecoder
|
||||
}
|
||||
|
||||
// Extension the one for all SPI. Customize encoding/decoding by specifying alternate encoder/decoder.
|
||||
// Can also rename fields by UpdateStructDescriptor.
|
||||
type Extension interface {
|
||||
UpdateStructDescriptor(structDescriptor *StructDescriptor)
|
||||
CreateMapKeyDecoder(typ reflect2.Type) ValDecoder
|
||||
CreateMapKeyEncoder(typ reflect2.Type) ValEncoder
|
||||
CreateDecoder(typ reflect2.Type) ValDecoder
|
||||
CreateEncoder(typ reflect2.Type) ValEncoder
|
||||
DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder
|
||||
DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder
|
||||
}
|
||||
|
||||
// DummyExtension embed this type get dummy implementation for all methods of Extension
|
||||
type DummyExtension struct {
|
||||
}
|
||||
|
||||
// UpdateStructDescriptor No-op
|
||||
func (extension *DummyExtension) UpdateStructDescriptor(structDescriptor *StructDescriptor) {
|
||||
}
|
||||
|
||||
// CreateMapKeyDecoder No-op
|
||||
func (extension *DummyExtension) CreateMapKeyDecoder(typ reflect2.Type) ValDecoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// CreateMapKeyEncoder No-op
|
||||
func (extension *DummyExtension) CreateMapKeyEncoder(typ reflect2.Type) ValEncoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// CreateDecoder No-op
|
||||
func (extension *DummyExtension) CreateDecoder(typ reflect2.Type) ValDecoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// CreateEncoder No-op
|
||||
func (extension *DummyExtension) CreateEncoder(typ reflect2.Type) ValEncoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// DecorateDecoder No-op
|
||||
func (extension *DummyExtension) DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder {
|
||||
return decoder
|
||||
}
|
||||
|
||||
// DecorateEncoder No-op
|
||||
func (extension *DummyExtension) DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder {
|
||||
return encoder
|
||||
}
|
||||
|
||||
type EncoderExtension map[reflect2.Type]ValEncoder
|
||||
|
||||
// UpdateStructDescriptor No-op
|
||||
func (extension EncoderExtension) UpdateStructDescriptor(structDescriptor *StructDescriptor) {
|
||||
}
|
||||
|
||||
// CreateDecoder No-op
|
||||
func (extension EncoderExtension) CreateDecoder(typ reflect2.Type) ValDecoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// CreateEncoder get encoder from map
|
||||
func (extension EncoderExtension) CreateEncoder(typ reflect2.Type) ValEncoder {
|
||||
return extension[typ]
|
||||
}
|
||||
|
||||
// CreateMapKeyDecoder No-op
|
||||
func (extension EncoderExtension) CreateMapKeyDecoder(typ reflect2.Type) ValDecoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// CreateMapKeyEncoder No-op
|
||||
func (extension EncoderExtension) CreateMapKeyEncoder(typ reflect2.Type) ValEncoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// DecorateDecoder No-op
|
||||
func (extension EncoderExtension) DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder {
|
||||
return decoder
|
||||
}
|
||||
|
||||
// DecorateEncoder No-op
|
||||
func (extension EncoderExtension) DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder {
|
||||
return encoder
|
||||
}
|
||||
|
||||
type DecoderExtension map[reflect2.Type]ValDecoder
|
||||
|
||||
// UpdateStructDescriptor No-op
|
||||
func (extension DecoderExtension) UpdateStructDescriptor(structDescriptor *StructDescriptor) {
|
||||
}
|
||||
|
||||
// CreateMapKeyDecoder No-op
|
||||
func (extension DecoderExtension) CreateMapKeyDecoder(typ reflect2.Type) ValDecoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// CreateMapKeyEncoder No-op
|
||||
func (extension DecoderExtension) CreateMapKeyEncoder(typ reflect2.Type) ValEncoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// CreateDecoder get decoder from map
|
||||
func (extension DecoderExtension) CreateDecoder(typ reflect2.Type) ValDecoder {
|
||||
return extension[typ]
|
||||
}
|
||||
|
||||
// CreateEncoder No-op
|
||||
func (extension DecoderExtension) CreateEncoder(typ reflect2.Type) ValEncoder {
|
||||
return nil
|
||||
}
|
||||
|
||||
// DecorateDecoder No-op
|
||||
func (extension DecoderExtension) DecorateDecoder(typ reflect2.Type, decoder ValDecoder) ValDecoder {
|
||||
return decoder
|
||||
}
|
||||
|
||||
// DecorateEncoder No-op
|
||||
func (extension DecoderExtension) DecorateEncoder(typ reflect2.Type, encoder ValEncoder) ValEncoder {
|
||||
return encoder
|
||||
}
|
||||
|
||||
type funcDecoder struct {
|
||||
fun DecoderFunc
|
||||
}
|
||||
|
||||
func (decoder *funcDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
decoder.fun(ptr, iter)
|
||||
}
|
||||
|
||||
type funcEncoder struct {
|
||||
fun EncoderFunc
|
||||
isEmptyFunc func(ptr unsafe.Pointer) bool
|
||||
}
|
||||
|
||||
func (encoder *funcEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
encoder.fun(ptr, stream)
|
||||
}
|
||||
|
||||
func (encoder *funcEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
if encoder.isEmptyFunc == nil {
|
||||
return false
|
||||
}
|
||||
return encoder.isEmptyFunc(ptr)
|
||||
}
|
||||
|
||||
// DecoderFunc the function form of TypeDecoder
|
||||
type DecoderFunc func(ptr unsafe.Pointer, iter *Iterator)
|
||||
|
||||
// EncoderFunc the function form of TypeEncoder
|
||||
type EncoderFunc func(ptr unsafe.Pointer, stream *Stream)
|
||||
|
||||
// RegisterTypeDecoderFunc register TypeDecoder for a type with function
|
||||
func RegisterTypeDecoderFunc(typ string, fun DecoderFunc) {
|
||||
typeDecoders[typ] = &funcDecoder{fun}
|
||||
}
|
||||
|
||||
// RegisterTypeDecoder register TypeDecoder for a typ
|
||||
func RegisterTypeDecoder(typ string, decoder ValDecoder) {
|
||||
typeDecoders[typ] = decoder
|
||||
}
|
||||
|
||||
// RegisterFieldDecoderFunc register TypeDecoder for a struct field with function
|
||||
func RegisterFieldDecoderFunc(typ string, field string, fun DecoderFunc) {
|
||||
RegisterFieldDecoder(typ, field, &funcDecoder{fun})
|
||||
}
|
||||
|
||||
// RegisterFieldDecoder register TypeDecoder for a struct field
|
||||
func RegisterFieldDecoder(typ string, field string, decoder ValDecoder) {
|
||||
fieldDecoders[fmt.Sprintf("%s/%s", typ, field)] = decoder
|
||||
}
|
||||
|
||||
// RegisterTypeEncoderFunc register TypeEncoder for a type with encode/isEmpty function
|
||||
func RegisterTypeEncoderFunc(typ string, fun EncoderFunc, isEmptyFunc func(unsafe.Pointer) bool) {
|
||||
typeEncoders[typ] = &funcEncoder{fun, isEmptyFunc}
|
||||
}
|
||||
|
||||
// RegisterTypeEncoder register TypeEncoder for a type
|
||||
func RegisterTypeEncoder(typ string, encoder ValEncoder) {
|
||||
typeEncoders[typ] = encoder
|
||||
}
|
||||
|
||||
// RegisterFieldEncoderFunc register TypeEncoder for a struct field with encode/isEmpty function
|
||||
func RegisterFieldEncoderFunc(typ string, field string, fun EncoderFunc, isEmptyFunc func(unsafe.Pointer) bool) {
|
||||
RegisterFieldEncoder(typ, field, &funcEncoder{fun, isEmptyFunc})
|
||||
}
|
||||
|
||||
// RegisterFieldEncoder register TypeEncoder for a struct field
|
||||
func RegisterFieldEncoder(typ string, field string, encoder ValEncoder) {
|
||||
fieldEncoders[fmt.Sprintf("%s/%s", typ, field)] = encoder
|
||||
}
|
||||
|
||||
// RegisterExtension register extension
|
||||
func RegisterExtension(extension Extension) {
|
||||
extensions = append(extensions, extension)
|
||||
}
|
||||
|
||||
func getTypeDecoderFromExtension(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
decoder := _getTypeDecoderFromExtension(ctx, typ)
|
||||
if decoder != nil {
|
||||
for _, extension := range extensions {
|
||||
decoder = extension.DecorateDecoder(typ, decoder)
|
||||
}
|
||||
decoder = ctx.decoderExtension.DecorateDecoder(typ, decoder)
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
decoder = extension.DecorateDecoder(typ, decoder)
|
||||
}
|
||||
}
|
||||
return decoder
|
||||
}
|
||||
func _getTypeDecoderFromExtension(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
for _, extension := range extensions {
|
||||
decoder := extension.CreateDecoder(typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
}
|
||||
decoder := ctx.decoderExtension.CreateDecoder(typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
decoder := extension.CreateDecoder(typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
}
|
||||
typeName := typ.String()
|
||||
decoder = typeDecoders[typeName]
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
if typ.Kind() == reflect.Ptr {
|
||||
ptrType := typ.(*reflect2.UnsafePtrType)
|
||||
decoder := typeDecoders[ptrType.Elem().String()]
|
||||
if decoder != nil {
|
||||
return &OptionalDecoder{ptrType.Elem(), decoder}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func getTypeEncoderFromExtension(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
encoder := _getTypeEncoderFromExtension(ctx, typ)
|
||||
if encoder != nil {
|
||||
for _, extension := range extensions {
|
||||
encoder = extension.DecorateEncoder(typ, encoder)
|
||||
}
|
||||
encoder = ctx.encoderExtension.DecorateEncoder(typ, encoder)
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
encoder = extension.DecorateEncoder(typ, encoder)
|
||||
}
|
||||
}
|
||||
return encoder
|
||||
}
|
||||
|
||||
func _getTypeEncoderFromExtension(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
for _, extension := range extensions {
|
||||
encoder := extension.CreateEncoder(typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
}
|
||||
encoder := ctx.encoderExtension.CreateEncoder(typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
encoder := extension.CreateEncoder(typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
}
|
||||
typeName := typ.String()
|
||||
encoder = typeEncoders[typeName]
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
if typ.Kind() == reflect.Ptr {
|
||||
typePtr := typ.(*reflect2.UnsafePtrType)
|
||||
encoder := typeEncoders[typePtr.Elem().String()]
|
||||
if encoder != nil {
|
||||
return &OptionalEncoder{encoder}
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func describeStruct(ctx *ctx, typ reflect2.Type) *StructDescriptor {
|
||||
structType := typ.(*reflect2.UnsafeStructType)
|
||||
embeddedBindings := []*Binding{}
|
||||
bindings := []*Binding{}
|
||||
for i := 0; i < structType.NumField(); i++ {
|
||||
field := structType.Field(i)
|
||||
tag, hastag := field.Tag().Lookup(ctx.getTagKey())
|
||||
if ctx.onlyTaggedField && !hastag && !field.Anonymous() {
|
||||
continue
|
||||
}
|
||||
if tag == "-" || field.Name() == "_" {
|
||||
continue
|
||||
}
|
||||
tagParts := strings.Split(tag, ",")
|
||||
if field.Anonymous() && (tag == "" || tagParts[0] == "") {
|
||||
if field.Type().Kind() == reflect.Struct {
|
||||
structDescriptor := describeStruct(ctx, field.Type())
|
||||
for _, binding := range structDescriptor.Fields {
|
||||
binding.levels = append([]int{i}, binding.levels...)
|
||||
omitempty := binding.Encoder.(*structFieldEncoder).omitempty
|
||||
binding.Encoder = &structFieldEncoder{field, binding.Encoder, omitempty}
|
||||
binding.Decoder = &structFieldDecoder{field, binding.Decoder}
|
||||
embeddedBindings = append(embeddedBindings, binding)
|
||||
}
|
||||
continue
|
||||
} else if field.Type().Kind() == reflect.Ptr {
|
||||
ptrType := field.Type().(*reflect2.UnsafePtrType)
|
||||
if ptrType.Elem().Kind() == reflect.Struct {
|
||||
structDescriptor := describeStruct(ctx, ptrType.Elem())
|
||||
for _, binding := range structDescriptor.Fields {
|
||||
binding.levels = append([]int{i}, binding.levels...)
|
||||
omitempty := binding.Encoder.(*structFieldEncoder).omitempty
|
||||
binding.Encoder = &dereferenceEncoder{binding.Encoder}
|
||||
binding.Encoder = &structFieldEncoder{field, binding.Encoder, omitempty}
|
||||
binding.Decoder = &dereferenceDecoder{ptrType.Elem(), binding.Decoder}
|
||||
binding.Decoder = &structFieldDecoder{field, binding.Decoder}
|
||||
embeddedBindings = append(embeddedBindings, binding)
|
||||
}
|
||||
continue
|
||||
}
|
||||
}
|
||||
}
|
||||
fieldNames := calcFieldNames(field.Name(), tagParts[0], tag)
|
||||
fieldCacheKey := fmt.Sprintf("%s/%s", typ.String(), field.Name())
|
||||
decoder := fieldDecoders[fieldCacheKey]
|
||||
if decoder == nil {
|
||||
decoder = decoderOfType(ctx.append(field.Name()), field.Type())
|
||||
}
|
||||
encoder := fieldEncoders[fieldCacheKey]
|
||||
if encoder == nil {
|
||||
encoder = encoderOfType(ctx.append(field.Name()), field.Type())
|
||||
}
|
||||
binding := &Binding{
|
||||
Field: field,
|
||||
FromNames: fieldNames,
|
||||
ToNames: fieldNames,
|
||||
Decoder: decoder,
|
||||
Encoder: encoder,
|
||||
}
|
||||
binding.levels = []int{i}
|
||||
bindings = append(bindings, binding)
|
||||
}
|
||||
return createStructDescriptor(ctx, typ, bindings, embeddedBindings)
|
||||
}
|
||||
func createStructDescriptor(ctx *ctx, typ reflect2.Type, bindings []*Binding, embeddedBindings []*Binding) *StructDescriptor {
|
||||
structDescriptor := &StructDescriptor{
|
||||
Type: typ,
|
||||
Fields: bindings,
|
||||
}
|
||||
for _, extension := range extensions {
|
||||
extension.UpdateStructDescriptor(structDescriptor)
|
||||
}
|
||||
ctx.encoderExtension.UpdateStructDescriptor(structDescriptor)
|
||||
ctx.decoderExtension.UpdateStructDescriptor(structDescriptor)
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
extension.UpdateStructDescriptor(structDescriptor)
|
||||
}
|
||||
processTags(structDescriptor, ctx.frozenConfig)
|
||||
// merge normal & embedded bindings & sort with original order
|
||||
allBindings := sortableBindings(append(embeddedBindings, structDescriptor.Fields...))
|
||||
sort.Sort(allBindings)
|
||||
structDescriptor.Fields = allBindings
|
||||
return structDescriptor
|
||||
}
|
||||
|
||||
type sortableBindings []*Binding
|
||||
|
||||
func (bindings sortableBindings) Len() int {
|
||||
return len(bindings)
|
||||
}
|
||||
|
||||
func (bindings sortableBindings) Less(i, j int) bool {
|
||||
left := bindings[i].levels
|
||||
right := bindings[j].levels
|
||||
k := 0
|
||||
for {
|
||||
if left[k] < right[k] {
|
||||
return true
|
||||
} else if left[k] > right[k] {
|
||||
return false
|
||||
}
|
||||
k++
|
||||
}
|
||||
}
|
||||
|
||||
func (bindings sortableBindings) Swap(i, j int) {
|
||||
bindings[i], bindings[j] = bindings[j], bindings[i]
|
||||
}
|
||||
|
||||
func processTags(structDescriptor *StructDescriptor, cfg *frozenConfig) {
|
||||
for _, binding := range structDescriptor.Fields {
|
||||
shouldOmitEmpty := false
|
||||
tagParts := strings.Split(binding.Field.Tag().Get(cfg.getTagKey()), ",")
|
||||
for _, tagPart := range tagParts[1:] {
|
||||
if tagPart == "omitempty" {
|
||||
shouldOmitEmpty = true
|
||||
} else if tagPart == "string" {
|
||||
if binding.Field.Type().Kind() == reflect.String {
|
||||
binding.Decoder = &stringModeStringDecoder{binding.Decoder, cfg}
|
||||
binding.Encoder = &stringModeStringEncoder{binding.Encoder, cfg}
|
||||
} else {
|
||||
binding.Decoder = &stringModeNumberDecoder{binding.Decoder}
|
||||
binding.Encoder = &stringModeNumberEncoder{binding.Encoder}
|
||||
}
|
||||
}
|
||||
}
|
||||
binding.Decoder = &structFieldDecoder{binding.Field, binding.Decoder}
|
||||
binding.Encoder = &structFieldEncoder{binding.Field, binding.Encoder, shouldOmitEmpty}
|
||||
}
|
||||
}
|
||||
|
||||
func calcFieldNames(originalFieldName string, tagProvidedFieldName string, wholeTag string) []string {
|
||||
// ignore?
|
||||
if wholeTag == "-" {
|
||||
return []string{}
|
||||
}
|
||||
// rename?
|
||||
var fieldNames []string
|
||||
if tagProvidedFieldName == "" {
|
||||
fieldNames = []string{originalFieldName}
|
||||
} else {
|
||||
fieldNames = []string{tagProvidedFieldName}
|
||||
}
|
||||
// private?
|
||||
isNotExported := unicode.IsLower(rune(originalFieldName[0])) || originalFieldName[0] == '_'
|
||||
if isNotExported {
|
||||
fieldNames = []string{}
|
||||
}
|
||||
return fieldNames
|
||||
}
|
|
@ -0,0 +1,112 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"github.com/modern-go/reflect2"
|
||||
"strconv"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
type Number string
|
||||
|
||||
// String returns the literal text of the number.
|
||||
func (n Number) String() string { return string(n) }
|
||||
|
||||
// Float64 returns the number as a float64.
|
||||
func (n Number) Float64() (float64, error) {
|
||||
return strconv.ParseFloat(string(n), 64)
|
||||
}
|
||||
|
||||
// Int64 returns the number as an int64.
|
||||
func (n Number) Int64() (int64, error) {
|
||||
return strconv.ParseInt(string(n), 10, 64)
|
||||
}
|
||||
|
||||
func CastJsonNumber(val interface{}) (string, bool) {
|
||||
switch typedVal := val.(type) {
|
||||
case json.Number:
|
||||
return string(typedVal), true
|
||||
case Number:
|
||||
return string(typedVal), true
|
||||
}
|
||||
return "", false
|
||||
}
|
||||
|
||||
var jsonNumberType = reflect2.TypeOfPtr((*json.Number)(nil)).Elem()
|
||||
var jsoniterNumberType = reflect2.TypeOfPtr((*Number)(nil)).Elem()
|
||||
|
||||
func createDecoderOfJsonNumber(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
if typ.AssignableTo(jsonNumberType) {
|
||||
return &jsonNumberCodec{}
|
||||
}
|
||||
if typ.AssignableTo(jsoniterNumberType) {
|
||||
return &jsoniterNumberCodec{}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func createEncoderOfJsonNumber(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
if typ.AssignableTo(jsonNumberType) {
|
||||
return &jsonNumberCodec{}
|
||||
}
|
||||
if typ.AssignableTo(jsoniterNumberType) {
|
||||
return &jsoniterNumberCodec{}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type jsonNumberCodec struct {
|
||||
}
|
||||
|
||||
func (codec *jsonNumberCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
switch iter.WhatIsNext() {
|
||||
case StringValue:
|
||||
*((*json.Number)(ptr)) = json.Number(iter.ReadString())
|
||||
case NilValue:
|
||||
iter.skipFourBytes('n', 'u', 'l', 'l')
|
||||
*((*json.Number)(ptr)) = ""
|
||||
default:
|
||||
*((*json.Number)(ptr)) = json.Number([]byte(iter.readNumberAsString()))
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *jsonNumberCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
number := *((*json.Number)(ptr))
|
||||
if len(number) == 0 {
|
||||
stream.writeByte('0')
|
||||
} else {
|
||||
stream.WriteRaw(string(number))
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *jsonNumberCodec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return len(*((*json.Number)(ptr))) == 0
|
||||
}
|
||||
|
||||
type jsoniterNumberCodec struct {
|
||||
}
|
||||
|
||||
func (codec *jsoniterNumberCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
switch iter.WhatIsNext() {
|
||||
case StringValue:
|
||||
*((*Number)(ptr)) = Number(iter.ReadString())
|
||||
case NilValue:
|
||||
iter.skipFourBytes('n', 'u', 'l', 'l')
|
||||
*((*Number)(ptr)) = ""
|
||||
default:
|
||||
*((*Number)(ptr)) = Number([]byte(iter.readNumberAsString()))
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *jsoniterNumberCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
number := *((*Number)(ptr))
|
||||
if len(number) == 0 {
|
||||
stream.writeByte('0')
|
||||
} else {
|
||||
stream.WriteRaw(string(number))
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *jsoniterNumberCodec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return len(*((*Number)(ptr))) == 0
|
||||
}
|
|
@ -0,0 +1,60 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"encoding/json"
|
||||
"github.com/modern-go/reflect2"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
var jsonRawMessageType = reflect2.TypeOfPtr((*json.RawMessage)(nil)).Elem()
|
||||
var jsoniterRawMessageType = reflect2.TypeOfPtr((*RawMessage)(nil)).Elem()
|
||||
|
||||
func createEncoderOfJsonRawMessage(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
if typ == jsonRawMessageType {
|
||||
return &jsonRawMessageCodec{}
|
||||
}
|
||||
if typ == jsoniterRawMessageType {
|
||||
return &jsoniterRawMessageCodec{}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func createDecoderOfJsonRawMessage(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
if typ == jsonRawMessageType {
|
||||
return &jsonRawMessageCodec{}
|
||||
}
|
||||
if typ == jsoniterRawMessageType {
|
||||
return &jsoniterRawMessageCodec{}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type jsonRawMessageCodec struct {
|
||||
}
|
||||
|
||||
func (codec *jsonRawMessageCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
*((*json.RawMessage)(ptr)) = json.RawMessage(iter.SkipAndReturnBytes())
|
||||
}
|
||||
|
||||
func (codec *jsonRawMessageCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteRaw(string(*((*json.RawMessage)(ptr))))
|
||||
}
|
||||
|
||||
func (codec *jsonRawMessageCodec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return len(*((*json.RawMessage)(ptr))) == 0
|
||||
}
|
||||
|
||||
type jsoniterRawMessageCodec struct {
|
||||
}
|
||||
|
||||
func (codec *jsoniterRawMessageCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
*((*RawMessage)(ptr)) = RawMessage(iter.SkipAndReturnBytes())
|
||||
}
|
||||
|
||||
func (codec *jsoniterRawMessageCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteRaw(string(*((*RawMessage)(ptr))))
|
||||
}
|
||||
|
||||
func (codec *jsoniterRawMessageCodec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return len(*((*RawMessage)(ptr))) == 0
|
||||
}
|
|
@ -0,0 +1,346 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/modern-go/reflect2"
|
||||
"io"
|
||||
"reflect"
|
||||
"sort"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
func decoderOfMap(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
mapType := typ.(*reflect2.UnsafeMapType)
|
||||
keyDecoder := decoderOfMapKey(ctx.append("[mapKey]"), mapType.Key())
|
||||
elemDecoder := decoderOfType(ctx.append("[mapElem]"), mapType.Elem())
|
||||
return &mapDecoder{
|
||||
mapType: mapType,
|
||||
keyType: mapType.Key(),
|
||||
elemType: mapType.Elem(),
|
||||
keyDecoder: keyDecoder,
|
||||
elemDecoder: elemDecoder,
|
||||
}
|
||||
}
|
||||
|
||||
func encoderOfMap(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
mapType := typ.(*reflect2.UnsafeMapType)
|
||||
if ctx.sortMapKeys {
|
||||
return &sortKeysMapEncoder{
|
||||
mapType: mapType,
|
||||
keyEncoder: encoderOfMapKey(ctx.append("[mapKey]"), mapType.Key()),
|
||||
elemEncoder: encoderOfType(ctx.append("[mapElem]"), mapType.Elem()),
|
||||
}
|
||||
}
|
||||
return &mapEncoder{
|
||||
mapType: mapType,
|
||||
keyEncoder: encoderOfMapKey(ctx.append("[mapKey]"), mapType.Key()),
|
||||
elemEncoder: encoderOfType(ctx.append("[mapElem]"), mapType.Elem()),
|
||||
}
|
||||
}
|
||||
|
||||
func decoderOfMapKey(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
decoder := ctx.decoderExtension.CreateMapKeyDecoder(typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
decoder := extension.CreateMapKeyDecoder(typ)
|
||||
if decoder != nil {
|
||||
return decoder
|
||||
}
|
||||
}
|
||||
|
||||
ptrType := reflect2.PtrTo(typ)
|
||||
if ptrType.Implements(unmarshalerType) {
|
||||
return &referenceDecoder{
|
||||
&unmarshalerDecoder{
|
||||
valType: ptrType,
|
||||
},
|
||||
}
|
||||
}
|
||||
if typ.Implements(unmarshalerType) {
|
||||
return &unmarshalerDecoder{
|
||||
valType: typ,
|
||||
}
|
||||
}
|
||||
if ptrType.Implements(textUnmarshalerType) {
|
||||
return &referenceDecoder{
|
||||
&textUnmarshalerDecoder{
|
||||
valType: ptrType,
|
||||
},
|
||||
}
|
||||
}
|
||||
if typ.Implements(textUnmarshalerType) {
|
||||
return &textUnmarshalerDecoder{
|
||||
valType: typ,
|
||||
}
|
||||
}
|
||||
|
||||
switch typ.Kind() {
|
||||
case reflect.String:
|
||||
return decoderOfType(ctx, reflect2.DefaultTypeOfKind(reflect.String))
|
||||
case reflect.Bool,
|
||||
reflect.Uint8, reflect.Int8,
|
||||
reflect.Uint16, reflect.Int16,
|
||||
reflect.Uint32, reflect.Int32,
|
||||
reflect.Uint64, reflect.Int64,
|
||||
reflect.Uint, reflect.Int,
|
||||
reflect.Float32, reflect.Float64,
|
||||
reflect.Uintptr:
|
||||
typ = reflect2.DefaultTypeOfKind(typ.Kind())
|
||||
return &numericMapKeyDecoder{decoderOfType(ctx, typ)}
|
||||
default:
|
||||
return &lazyErrorDecoder{err: fmt.Errorf("unsupported map key type: %v", typ)}
|
||||
}
|
||||
}
|
||||
|
||||
func encoderOfMapKey(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
encoder := ctx.encoderExtension.CreateMapKeyEncoder(typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
for _, extension := range ctx.extraExtensions {
|
||||
encoder := extension.CreateMapKeyEncoder(typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
}
|
||||
|
||||
if typ == textMarshalerType {
|
||||
return &directTextMarshalerEncoder{
|
||||
stringEncoder: ctx.EncoderOf(reflect2.TypeOf("")),
|
||||
}
|
||||
}
|
||||
if typ.Implements(textMarshalerType) {
|
||||
return &textMarshalerEncoder{
|
||||
valType: typ,
|
||||
stringEncoder: ctx.EncoderOf(reflect2.TypeOf("")),
|
||||
}
|
||||
}
|
||||
|
||||
switch typ.Kind() {
|
||||
case reflect.String:
|
||||
return encoderOfType(ctx, reflect2.DefaultTypeOfKind(reflect.String))
|
||||
case reflect.Bool,
|
||||
reflect.Uint8, reflect.Int8,
|
||||
reflect.Uint16, reflect.Int16,
|
||||
reflect.Uint32, reflect.Int32,
|
||||
reflect.Uint64, reflect.Int64,
|
||||
reflect.Uint, reflect.Int,
|
||||
reflect.Float32, reflect.Float64,
|
||||
reflect.Uintptr:
|
||||
typ = reflect2.DefaultTypeOfKind(typ.Kind())
|
||||
return &numericMapKeyEncoder{encoderOfType(ctx, typ)}
|
||||
default:
|
||||
if typ.Kind() == reflect.Interface {
|
||||
return &dynamicMapKeyEncoder{ctx, typ}
|
||||
}
|
||||
return &lazyErrorEncoder{err: fmt.Errorf("unsupported map key type: %v", typ)}
|
||||
}
|
||||
}
|
||||
|
||||
type mapDecoder struct {
|
||||
mapType *reflect2.UnsafeMapType
|
||||
keyType reflect2.Type
|
||||
elemType reflect2.Type
|
||||
keyDecoder ValDecoder
|
||||
elemDecoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *mapDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
mapType := decoder.mapType
|
||||
c := iter.nextToken()
|
||||
if c == 'n' {
|
||||
iter.skipThreeBytes('u', 'l', 'l')
|
||||
*(*unsafe.Pointer)(ptr) = nil
|
||||
mapType.UnsafeSet(ptr, mapType.UnsafeNew())
|
||||
return
|
||||
}
|
||||
if mapType.UnsafeIsNil(ptr) {
|
||||
mapType.UnsafeSet(ptr, mapType.UnsafeMakeMap(0))
|
||||
}
|
||||
if c != '{' {
|
||||
iter.ReportError("ReadMapCB", `expect { or n, but found `+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
c = iter.nextToken()
|
||||
if c == '}' {
|
||||
return
|
||||
}
|
||||
iter.unreadByte()
|
||||
key := decoder.keyType.UnsafeNew()
|
||||
decoder.keyDecoder.Decode(key, iter)
|
||||
c = iter.nextToken()
|
||||
if c != ':' {
|
||||
iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
elem := decoder.elemType.UnsafeNew()
|
||||
decoder.elemDecoder.Decode(elem, iter)
|
||||
decoder.mapType.UnsafeSetIndex(ptr, key, elem)
|
||||
for c = iter.nextToken(); c == ','; c = iter.nextToken() {
|
||||
key := decoder.keyType.UnsafeNew()
|
||||
decoder.keyDecoder.Decode(key, iter)
|
||||
c = iter.nextToken()
|
||||
if c != ':' {
|
||||
iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
elem := decoder.elemType.UnsafeNew()
|
||||
decoder.elemDecoder.Decode(elem, iter)
|
||||
decoder.mapType.UnsafeSetIndex(ptr, key, elem)
|
||||
}
|
||||
if c != '}' {
|
||||
iter.ReportError("ReadMapCB", `expect }, but found `+string([]byte{c}))
|
||||
}
|
||||
}
|
||||
|
||||
type numericMapKeyDecoder struct {
|
||||
decoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *numericMapKeyDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
c := iter.nextToken()
|
||||
if c != '"' {
|
||||
iter.ReportError("ReadMapCB", `expect ", but found `+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
decoder.decoder.Decode(ptr, iter)
|
||||
c = iter.nextToken()
|
||||
if c != '"' {
|
||||
iter.ReportError("ReadMapCB", `expect ", but found `+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
type numericMapKeyEncoder struct {
|
||||
encoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *numericMapKeyEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.writeByte('"')
|
||||
encoder.encoder.Encode(ptr, stream)
|
||||
stream.writeByte('"')
|
||||
}
|
||||
|
||||
func (encoder *numericMapKeyEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return false
|
||||
}
|
||||
|
||||
type dynamicMapKeyEncoder struct {
|
||||
ctx *ctx
|
||||
valType reflect2.Type
|
||||
}
|
||||
|
||||
func (encoder *dynamicMapKeyEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
obj := encoder.valType.UnsafeIndirect(ptr)
|
||||
encoderOfMapKey(encoder.ctx, reflect2.TypeOf(obj)).Encode(reflect2.PtrOf(obj), stream)
|
||||
}
|
||||
|
||||
func (encoder *dynamicMapKeyEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
obj := encoder.valType.UnsafeIndirect(ptr)
|
||||
return encoderOfMapKey(encoder.ctx, reflect2.TypeOf(obj)).IsEmpty(reflect2.PtrOf(obj))
|
||||
}
|
||||
|
||||
type mapEncoder struct {
|
||||
mapType *reflect2.UnsafeMapType
|
||||
keyEncoder ValEncoder
|
||||
elemEncoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *mapEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
if *(*unsafe.Pointer)(ptr) == nil {
|
||||
stream.WriteNil()
|
||||
return
|
||||
}
|
||||
stream.WriteObjectStart()
|
||||
iter := encoder.mapType.UnsafeIterate(ptr)
|
||||
for i := 0; iter.HasNext(); i++ {
|
||||
if i != 0 {
|
||||
stream.WriteMore()
|
||||
}
|
||||
key, elem := iter.UnsafeNext()
|
||||
encoder.keyEncoder.Encode(key, stream)
|
||||
if stream.indention > 0 {
|
||||
stream.writeTwoBytes(byte(':'), byte(' '))
|
||||
} else {
|
||||
stream.writeByte(':')
|
||||
}
|
||||
encoder.elemEncoder.Encode(elem, stream)
|
||||
}
|
||||
stream.WriteObjectEnd()
|
||||
}
|
||||
|
||||
func (encoder *mapEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
iter := encoder.mapType.UnsafeIterate(ptr)
|
||||
return !iter.HasNext()
|
||||
}
|
||||
|
||||
type sortKeysMapEncoder struct {
|
||||
mapType *reflect2.UnsafeMapType
|
||||
keyEncoder ValEncoder
|
||||
elemEncoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *sortKeysMapEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
if *(*unsafe.Pointer)(ptr) == nil {
|
||||
stream.WriteNil()
|
||||
return
|
||||
}
|
||||
stream.WriteObjectStart()
|
||||
mapIter := encoder.mapType.UnsafeIterate(ptr)
|
||||
subStream := stream.cfg.BorrowStream(nil)
|
||||
subStream.Attachment = stream.Attachment
|
||||
subIter := stream.cfg.BorrowIterator(nil)
|
||||
keyValues := encodedKeyValues{}
|
||||
for mapIter.HasNext() {
|
||||
key, elem := mapIter.UnsafeNext()
|
||||
subStreamIndex := subStream.Buffered()
|
||||
encoder.keyEncoder.Encode(key, subStream)
|
||||
if subStream.Error != nil && subStream.Error != io.EOF && stream.Error == nil {
|
||||
stream.Error = subStream.Error
|
||||
}
|
||||
encodedKey := subStream.Buffer()[subStreamIndex:]
|
||||
subIter.ResetBytes(encodedKey)
|
||||
decodedKey := subIter.ReadString()
|
||||
if stream.indention > 0 {
|
||||
subStream.writeTwoBytes(byte(':'), byte(' '))
|
||||
} else {
|
||||
subStream.writeByte(':')
|
||||
}
|
||||
encoder.elemEncoder.Encode(elem, subStream)
|
||||
keyValues = append(keyValues, encodedKV{
|
||||
key: decodedKey,
|
||||
keyValue: subStream.Buffer()[subStreamIndex:],
|
||||
})
|
||||
}
|
||||
sort.Sort(keyValues)
|
||||
for i, keyValue := range keyValues {
|
||||
if i != 0 {
|
||||
stream.WriteMore()
|
||||
}
|
||||
stream.Write(keyValue.keyValue)
|
||||
}
|
||||
if subStream.Error != nil && stream.Error == nil {
|
||||
stream.Error = subStream.Error
|
||||
}
|
||||
stream.WriteObjectEnd()
|
||||
stream.cfg.ReturnStream(subStream)
|
||||
stream.cfg.ReturnIterator(subIter)
|
||||
}
|
||||
|
||||
func (encoder *sortKeysMapEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
iter := encoder.mapType.UnsafeIterate(ptr)
|
||||
return !iter.HasNext()
|
||||
}
|
||||
|
||||
type encodedKeyValues []encodedKV
|
||||
|
||||
type encodedKV struct {
|
||||
key string
|
||||
keyValue []byte
|
||||
}
|
||||
|
||||
func (sv encodedKeyValues) Len() int { return len(sv) }
|
||||
func (sv encodedKeyValues) Swap(i, j int) { sv[i], sv[j] = sv[j], sv[i] }
|
||||
func (sv encodedKeyValues) Less(i, j int) bool { return sv[i].key < sv[j].key }
|
|
@ -0,0 +1,225 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"encoding"
|
||||
"encoding/json"
|
||||
"unsafe"
|
||||
|
||||
"github.com/modern-go/reflect2"
|
||||
)
|
||||
|
||||
var marshalerType = reflect2.TypeOfPtr((*json.Marshaler)(nil)).Elem()
|
||||
var unmarshalerType = reflect2.TypeOfPtr((*json.Unmarshaler)(nil)).Elem()
|
||||
var textMarshalerType = reflect2.TypeOfPtr((*encoding.TextMarshaler)(nil)).Elem()
|
||||
var textUnmarshalerType = reflect2.TypeOfPtr((*encoding.TextUnmarshaler)(nil)).Elem()
|
||||
|
||||
func createDecoderOfMarshaler(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
ptrType := reflect2.PtrTo(typ)
|
||||
if ptrType.Implements(unmarshalerType) {
|
||||
return &referenceDecoder{
|
||||
&unmarshalerDecoder{ptrType},
|
||||
}
|
||||
}
|
||||
if ptrType.Implements(textUnmarshalerType) {
|
||||
return &referenceDecoder{
|
||||
&textUnmarshalerDecoder{ptrType},
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func createEncoderOfMarshaler(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
if typ == marshalerType {
|
||||
checkIsEmpty := createCheckIsEmpty(ctx, typ)
|
||||
var encoder ValEncoder = &directMarshalerEncoder{
|
||||
checkIsEmpty: checkIsEmpty,
|
||||
}
|
||||
return encoder
|
||||
}
|
||||
if typ.Implements(marshalerType) {
|
||||
checkIsEmpty := createCheckIsEmpty(ctx, typ)
|
||||
var encoder ValEncoder = &marshalerEncoder{
|
||||
valType: typ,
|
||||
checkIsEmpty: checkIsEmpty,
|
||||
}
|
||||
return encoder
|
||||
}
|
||||
ptrType := reflect2.PtrTo(typ)
|
||||
if ctx.prefix != "" && ptrType.Implements(marshalerType) {
|
||||
checkIsEmpty := createCheckIsEmpty(ctx, ptrType)
|
||||
var encoder ValEncoder = &marshalerEncoder{
|
||||
valType: ptrType,
|
||||
checkIsEmpty: checkIsEmpty,
|
||||
}
|
||||
return &referenceEncoder{encoder}
|
||||
}
|
||||
if typ == textMarshalerType {
|
||||
checkIsEmpty := createCheckIsEmpty(ctx, typ)
|
||||
var encoder ValEncoder = &directTextMarshalerEncoder{
|
||||
checkIsEmpty: checkIsEmpty,
|
||||
stringEncoder: ctx.EncoderOf(reflect2.TypeOf("")),
|
||||
}
|
||||
return encoder
|
||||
}
|
||||
if typ.Implements(textMarshalerType) {
|
||||
checkIsEmpty := createCheckIsEmpty(ctx, typ)
|
||||
var encoder ValEncoder = &textMarshalerEncoder{
|
||||
valType: typ,
|
||||
stringEncoder: ctx.EncoderOf(reflect2.TypeOf("")),
|
||||
checkIsEmpty: checkIsEmpty,
|
||||
}
|
||||
return encoder
|
||||
}
|
||||
// if prefix is empty, the type is the root type
|
||||
if ctx.prefix != "" && ptrType.Implements(textMarshalerType) {
|
||||
checkIsEmpty := createCheckIsEmpty(ctx, ptrType)
|
||||
var encoder ValEncoder = &textMarshalerEncoder{
|
||||
valType: ptrType,
|
||||
stringEncoder: ctx.EncoderOf(reflect2.TypeOf("")),
|
||||
checkIsEmpty: checkIsEmpty,
|
||||
}
|
||||
return &referenceEncoder{encoder}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type marshalerEncoder struct {
|
||||
checkIsEmpty checkIsEmpty
|
||||
valType reflect2.Type
|
||||
}
|
||||
|
||||
func (encoder *marshalerEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
obj := encoder.valType.UnsafeIndirect(ptr)
|
||||
if encoder.valType.IsNullable() && reflect2.IsNil(obj) {
|
||||
stream.WriteNil()
|
||||
return
|
||||
}
|
||||
marshaler := obj.(json.Marshaler)
|
||||
bytes, err := marshaler.MarshalJSON()
|
||||
if err != nil {
|
||||
stream.Error = err
|
||||
} else {
|
||||
// html escape was already done by jsoniter
|
||||
// but the extra '\n' should be trimed
|
||||
l := len(bytes)
|
||||
if l > 0 && bytes[l-1] == '\n' {
|
||||
bytes = bytes[:l-1]
|
||||
}
|
||||
stream.Write(bytes)
|
||||
}
|
||||
}
|
||||
|
||||
func (encoder *marshalerEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return encoder.checkIsEmpty.IsEmpty(ptr)
|
||||
}
|
||||
|
||||
type directMarshalerEncoder struct {
|
||||
checkIsEmpty checkIsEmpty
|
||||
}
|
||||
|
||||
func (encoder *directMarshalerEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
marshaler := *(*json.Marshaler)(ptr)
|
||||
if marshaler == nil {
|
||||
stream.WriteNil()
|
||||
return
|
||||
}
|
||||
bytes, err := marshaler.MarshalJSON()
|
||||
if err != nil {
|
||||
stream.Error = err
|
||||
} else {
|
||||
stream.Write(bytes)
|
||||
}
|
||||
}
|
||||
|
||||
func (encoder *directMarshalerEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return encoder.checkIsEmpty.IsEmpty(ptr)
|
||||
}
|
||||
|
||||
type textMarshalerEncoder struct {
|
||||
valType reflect2.Type
|
||||
stringEncoder ValEncoder
|
||||
checkIsEmpty checkIsEmpty
|
||||
}
|
||||
|
||||
func (encoder *textMarshalerEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
obj := encoder.valType.UnsafeIndirect(ptr)
|
||||
if encoder.valType.IsNullable() && reflect2.IsNil(obj) {
|
||||
stream.WriteNil()
|
||||
return
|
||||
}
|
||||
marshaler := (obj).(encoding.TextMarshaler)
|
||||
bytes, err := marshaler.MarshalText()
|
||||
if err != nil {
|
||||
stream.Error = err
|
||||
} else {
|
||||
str := string(bytes)
|
||||
encoder.stringEncoder.Encode(unsafe.Pointer(&str), stream)
|
||||
}
|
||||
}
|
||||
|
||||
func (encoder *textMarshalerEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return encoder.checkIsEmpty.IsEmpty(ptr)
|
||||
}
|
||||
|
||||
type directTextMarshalerEncoder struct {
|
||||
stringEncoder ValEncoder
|
||||
checkIsEmpty checkIsEmpty
|
||||
}
|
||||
|
||||
func (encoder *directTextMarshalerEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
marshaler := *(*encoding.TextMarshaler)(ptr)
|
||||
if marshaler == nil {
|
||||
stream.WriteNil()
|
||||
return
|
||||
}
|
||||
bytes, err := marshaler.MarshalText()
|
||||
if err != nil {
|
||||
stream.Error = err
|
||||
} else {
|
||||
str := string(bytes)
|
||||
encoder.stringEncoder.Encode(unsafe.Pointer(&str), stream)
|
||||
}
|
||||
}
|
||||
|
||||
func (encoder *directTextMarshalerEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return encoder.checkIsEmpty.IsEmpty(ptr)
|
||||
}
|
||||
|
||||
type unmarshalerDecoder struct {
|
||||
valType reflect2.Type
|
||||
}
|
||||
|
||||
func (decoder *unmarshalerDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
valType := decoder.valType
|
||||
obj := valType.UnsafeIndirect(ptr)
|
||||
unmarshaler := obj.(json.Unmarshaler)
|
||||
iter.nextToken()
|
||||
iter.unreadByte() // skip spaces
|
||||
bytes := iter.SkipAndReturnBytes()
|
||||
err := unmarshaler.UnmarshalJSON(bytes)
|
||||
if err != nil {
|
||||
iter.ReportError("unmarshalerDecoder", err.Error())
|
||||
}
|
||||
}
|
||||
|
||||
type textUnmarshalerDecoder struct {
|
||||
valType reflect2.Type
|
||||
}
|
||||
|
||||
func (decoder *textUnmarshalerDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
valType := decoder.valType
|
||||
obj := valType.UnsafeIndirect(ptr)
|
||||
if reflect2.IsNil(obj) {
|
||||
ptrType := valType.(*reflect2.UnsafePtrType)
|
||||
elemType := ptrType.Elem()
|
||||
elem := elemType.UnsafeNew()
|
||||
ptrType.UnsafeSet(ptr, unsafe.Pointer(&elem))
|
||||
obj = valType.UnsafeIndirect(ptr)
|
||||
}
|
||||
unmarshaler := (obj).(encoding.TextUnmarshaler)
|
||||
str := iter.ReadString()
|
||||
err := unmarshaler.UnmarshalText([]byte(str))
|
||||
if err != nil {
|
||||
iter.ReportError("textUnmarshalerDecoder", err.Error())
|
||||
}
|
||||
}
|
|
@ -0,0 +1,453 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"encoding/base64"
|
||||
"reflect"
|
||||
"strconv"
|
||||
"unsafe"
|
||||
|
||||
"github.com/modern-go/reflect2"
|
||||
)
|
||||
|
||||
const ptrSize = 32 << uintptr(^uintptr(0)>>63)
|
||||
|
||||
func createEncoderOfNative(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
if typ.Kind() == reflect.Slice && typ.(reflect2.SliceType).Elem().Kind() == reflect.Uint8 {
|
||||
sliceDecoder := decoderOfSlice(ctx, typ)
|
||||
return &base64Codec{sliceDecoder: sliceDecoder}
|
||||
}
|
||||
typeName := typ.String()
|
||||
kind := typ.Kind()
|
||||
switch kind {
|
||||
case reflect.String:
|
||||
if typeName != "string" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*string)(nil)).Elem())
|
||||
}
|
||||
return &stringCodec{}
|
||||
case reflect.Int:
|
||||
if typeName != "int" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*int)(nil)).Elem())
|
||||
}
|
||||
if strconv.IntSize == 32 {
|
||||
return &int32Codec{}
|
||||
}
|
||||
return &int64Codec{}
|
||||
case reflect.Int8:
|
||||
if typeName != "int8" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*int8)(nil)).Elem())
|
||||
}
|
||||
return &int8Codec{}
|
||||
case reflect.Int16:
|
||||
if typeName != "int16" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*int16)(nil)).Elem())
|
||||
}
|
||||
return &int16Codec{}
|
||||
case reflect.Int32:
|
||||
if typeName != "int32" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*int32)(nil)).Elem())
|
||||
}
|
||||
return &int32Codec{}
|
||||
case reflect.Int64:
|
||||
if typeName != "int64" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*int64)(nil)).Elem())
|
||||
}
|
||||
return &int64Codec{}
|
||||
case reflect.Uint:
|
||||
if typeName != "uint" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uint)(nil)).Elem())
|
||||
}
|
||||
if strconv.IntSize == 32 {
|
||||
return &uint32Codec{}
|
||||
}
|
||||
return &uint64Codec{}
|
||||
case reflect.Uint8:
|
||||
if typeName != "uint8" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uint8)(nil)).Elem())
|
||||
}
|
||||
return &uint8Codec{}
|
||||
case reflect.Uint16:
|
||||
if typeName != "uint16" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uint16)(nil)).Elem())
|
||||
}
|
||||
return &uint16Codec{}
|
||||
case reflect.Uint32:
|
||||
if typeName != "uint32" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uint32)(nil)).Elem())
|
||||
}
|
||||
return &uint32Codec{}
|
||||
case reflect.Uintptr:
|
||||
if typeName != "uintptr" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uintptr)(nil)).Elem())
|
||||
}
|
||||
if ptrSize == 32 {
|
||||
return &uint32Codec{}
|
||||
}
|
||||
return &uint64Codec{}
|
||||
case reflect.Uint64:
|
||||
if typeName != "uint64" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*uint64)(nil)).Elem())
|
||||
}
|
||||
return &uint64Codec{}
|
||||
case reflect.Float32:
|
||||
if typeName != "float32" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*float32)(nil)).Elem())
|
||||
}
|
||||
return &float32Codec{}
|
||||
case reflect.Float64:
|
||||
if typeName != "float64" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*float64)(nil)).Elem())
|
||||
}
|
||||
return &float64Codec{}
|
||||
case reflect.Bool:
|
||||
if typeName != "bool" {
|
||||
return encoderOfType(ctx, reflect2.TypeOfPtr((*bool)(nil)).Elem())
|
||||
}
|
||||
return &boolCodec{}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func createDecoderOfNative(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
if typ.Kind() == reflect.Slice && typ.(reflect2.SliceType).Elem().Kind() == reflect.Uint8 {
|
||||
sliceDecoder := decoderOfSlice(ctx, typ)
|
||||
return &base64Codec{sliceDecoder: sliceDecoder}
|
||||
}
|
||||
typeName := typ.String()
|
||||
switch typ.Kind() {
|
||||
case reflect.String:
|
||||
if typeName != "string" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*string)(nil)).Elem())
|
||||
}
|
||||
return &stringCodec{}
|
||||
case reflect.Int:
|
||||
if typeName != "int" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*int)(nil)).Elem())
|
||||
}
|
||||
if strconv.IntSize == 32 {
|
||||
return &int32Codec{}
|
||||
}
|
||||
return &int64Codec{}
|
||||
case reflect.Int8:
|
||||
if typeName != "int8" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*int8)(nil)).Elem())
|
||||
}
|
||||
return &int8Codec{}
|
||||
case reflect.Int16:
|
||||
if typeName != "int16" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*int16)(nil)).Elem())
|
||||
}
|
||||
return &int16Codec{}
|
||||
case reflect.Int32:
|
||||
if typeName != "int32" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*int32)(nil)).Elem())
|
||||
}
|
||||
return &int32Codec{}
|
||||
case reflect.Int64:
|
||||
if typeName != "int64" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*int64)(nil)).Elem())
|
||||
}
|
||||
return &int64Codec{}
|
||||
case reflect.Uint:
|
||||
if typeName != "uint" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uint)(nil)).Elem())
|
||||
}
|
||||
if strconv.IntSize == 32 {
|
||||
return &uint32Codec{}
|
||||
}
|
||||
return &uint64Codec{}
|
||||
case reflect.Uint8:
|
||||
if typeName != "uint8" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uint8)(nil)).Elem())
|
||||
}
|
||||
return &uint8Codec{}
|
||||
case reflect.Uint16:
|
||||
if typeName != "uint16" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uint16)(nil)).Elem())
|
||||
}
|
||||
return &uint16Codec{}
|
||||
case reflect.Uint32:
|
||||
if typeName != "uint32" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uint32)(nil)).Elem())
|
||||
}
|
||||
return &uint32Codec{}
|
||||
case reflect.Uintptr:
|
||||
if typeName != "uintptr" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uintptr)(nil)).Elem())
|
||||
}
|
||||
if ptrSize == 32 {
|
||||
return &uint32Codec{}
|
||||
}
|
||||
return &uint64Codec{}
|
||||
case reflect.Uint64:
|
||||
if typeName != "uint64" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*uint64)(nil)).Elem())
|
||||
}
|
||||
return &uint64Codec{}
|
||||
case reflect.Float32:
|
||||
if typeName != "float32" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*float32)(nil)).Elem())
|
||||
}
|
||||
return &float32Codec{}
|
||||
case reflect.Float64:
|
||||
if typeName != "float64" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*float64)(nil)).Elem())
|
||||
}
|
||||
return &float64Codec{}
|
||||
case reflect.Bool:
|
||||
if typeName != "bool" {
|
||||
return decoderOfType(ctx, reflect2.TypeOfPtr((*bool)(nil)).Elem())
|
||||
}
|
||||
return &boolCodec{}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
type stringCodec struct {
|
||||
}
|
||||
|
||||
func (codec *stringCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
*((*string)(ptr)) = iter.ReadString()
|
||||
}
|
||||
|
||||
func (codec *stringCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
str := *((*string)(ptr))
|
||||
stream.WriteString(str)
|
||||
}
|
||||
|
||||
func (codec *stringCodec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*string)(ptr)) == ""
|
||||
}
|
||||
|
||||
type int8Codec struct {
|
||||
}
|
||||
|
||||
func (codec *int8Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*int8)(ptr)) = iter.ReadInt8()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *int8Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteInt8(*((*int8)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *int8Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*int8)(ptr)) == 0
|
||||
}
|
||||
|
||||
type int16Codec struct {
|
||||
}
|
||||
|
||||
func (codec *int16Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*int16)(ptr)) = iter.ReadInt16()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *int16Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteInt16(*((*int16)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *int16Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*int16)(ptr)) == 0
|
||||
}
|
||||
|
||||
type int32Codec struct {
|
||||
}
|
||||
|
||||
func (codec *int32Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*int32)(ptr)) = iter.ReadInt32()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *int32Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteInt32(*((*int32)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *int32Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*int32)(ptr)) == 0
|
||||
}
|
||||
|
||||
type int64Codec struct {
|
||||
}
|
||||
|
||||
func (codec *int64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*int64)(ptr)) = iter.ReadInt64()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *int64Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteInt64(*((*int64)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *int64Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*int64)(ptr)) == 0
|
||||
}
|
||||
|
||||
type uint8Codec struct {
|
||||
}
|
||||
|
||||
func (codec *uint8Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*uint8)(ptr)) = iter.ReadUint8()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *uint8Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteUint8(*((*uint8)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *uint8Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*uint8)(ptr)) == 0
|
||||
}
|
||||
|
||||
type uint16Codec struct {
|
||||
}
|
||||
|
||||
func (codec *uint16Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*uint16)(ptr)) = iter.ReadUint16()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *uint16Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteUint16(*((*uint16)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *uint16Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*uint16)(ptr)) == 0
|
||||
}
|
||||
|
||||
type uint32Codec struct {
|
||||
}
|
||||
|
||||
func (codec *uint32Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*uint32)(ptr)) = iter.ReadUint32()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *uint32Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteUint32(*((*uint32)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *uint32Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*uint32)(ptr)) == 0
|
||||
}
|
||||
|
||||
type uint64Codec struct {
|
||||
}
|
||||
|
||||
func (codec *uint64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*uint64)(ptr)) = iter.ReadUint64()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *uint64Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteUint64(*((*uint64)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *uint64Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*uint64)(ptr)) == 0
|
||||
}
|
||||
|
||||
type float32Codec struct {
|
||||
}
|
||||
|
||||
func (codec *float32Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*float32)(ptr)) = iter.ReadFloat32()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *float32Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteFloat32(*((*float32)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *float32Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*float32)(ptr)) == 0
|
||||
}
|
||||
|
||||
type float64Codec struct {
|
||||
}
|
||||
|
||||
func (codec *float64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*float64)(ptr)) = iter.ReadFloat64()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *float64Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteFloat64(*((*float64)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *float64Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*float64)(ptr)) == 0
|
||||
}
|
||||
|
||||
type boolCodec struct {
|
||||
}
|
||||
|
||||
func (codec *boolCodec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if !iter.ReadNil() {
|
||||
*((*bool)(ptr)) = iter.ReadBool()
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *boolCodec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteBool(*((*bool)(ptr)))
|
||||
}
|
||||
|
||||
func (codec *boolCodec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return !(*((*bool)(ptr)))
|
||||
}
|
||||
|
||||
type base64Codec struct {
|
||||
sliceType *reflect2.UnsafeSliceType
|
||||
sliceDecoder ValDecoder
|
||||
}
|
||||
|
||||
func (codec *base64Codec) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if iter.ReadNil() {
|
||||
codec.sliceType.UnsafeSetNil(ptr)
|
||||
return
|
||||
}
|
||||
switch iter.WhatIsNext() {
|
||||
case StringValue:
|
||||
src := iter.ReadString()
|
||||
dst, err := base64.StdEncoding.DecodeString(src)
|
||||
if err != nil {
|
||||
iter.ReportError("decode base64", err.Error())
|
||||
} else {
|
||||
codec.sliceType.UnsafeSet(ptr, unsafe.Pointer(&dst))
|
||||
}
|
||||
case ArrayValue:
|
||||
codec.sliceDecoder.Decode(ptr, iter)
|
||||
default:
|
||||
iter.ReportError("base64Codec", "invalid input")
|
||||
}
|
||||
}
|
||||
|
||||
func (codec *base64Codec) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
if codec.sliceType.UnsafeIsNil(ptr) {
|
||||
stream.WriteNil()
|
||||
return
|
||||
}
|
||||
src := *((*[]byte)(ptr))
|
||||
encoding := base64.StdEncoding
|
||||
stream.writeByte('"')
|
||||
if len(src) != 0 {
|
||||
size := encoding.EncodedLen(len(src))
|
||||
buf := make([]byte, size)
|
||||
encoding.Encode(buf, src)
|
||||
stream.buf = append(stream.buf, buf...)
|
||||
}
|
||||
stream.writeByte('"')
|
||||
}
|
||||
|
||||
func (codec *base64Codec) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return len(*((*[]byte)(ptr))) == 0
|
||||
}
|
|
@ -0,0 +1,129 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"github.com/modern-go/reflect2"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
func decoderOfOptional(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
ptrType := typ.(*reflect2.UnsafePtrType)
|
||||
elemType := ptrType.Elem()
|
||||
decoder := decoderOfType(ctx, elemType)
|
||||
return &OptionalDecoder{elemType, decoder}
|
||||
}
|
||||
|
||||
func encoderOfOptional(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
ptrType := typ.(*reflect2.UnsafePtrType)
|
||||
elemType := ptrType.Elem()
|
||||
elemEncoder := encoderOfType(ctx, elemType)
|
||||
encoder := &OptionalEncoder{elemEncoder}
|
||||
return encoder
|
||||
}
|
||||
|
||||
type OptionalDecoder struct {
|
||||
ValueType reflect2.Type
|
||||
ValueDecoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *OptionalDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if iter.ReadNil() {
|
||||
*((*unsafe.Pointer)(ptr)) = nil
|
||||
} else {
|
||||
if *((*unsafe.Pointer)(ptr)) == nil {
|
||||
//pointer to null, we have to allocate memory to hold the value
|
||||
newPtr := decoder.ValueType.UnsafeNew()
|
||||
decoder.ValueDecoder.Decode(newPtr, iter)
|
||||
*((*unsafe.Pointer)(ptr)) = newPtr
|
||||
} else {
|
||||
//reuse existing instance
|
||||
decoder.ValueDecoder.Decode(*((*unsafe.Pointer)(ptr)), iter)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type dereferenceDecoder struct {
|
||||
// only to deference a pointer
|
||||
valueType reflect2.Type
|
||||
valueDecoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *dereferenceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
if *((*unsafe.Pointer)(ptr)) == nil {
|
||||
//pointer to null, we have to allocate memory to hold the value
|
||||
newPtr := decoder.valueType.UnsafeNew()
|
||||
decoder.valueDecoder.Decode(newPtr, iter)
|
||||
*((*unsafe.Pointer)(ptr)) = newPtr
|
||||
} else {
|
||||
//reuse existing instance
|
||||
decoder.valueDecoder.Decode(*((*unsafe.Pointer)(ptr)), iter)
|
||||
}
|
||||
}
|
||||
|
||||
type OptionalEncoder struct {
|
||||
ValueEncoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *OptionalEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
if *((*unsafe.Pointer)(ptr)) == nil {
|
||||
stream.WriteNil()
|
||||
} else {
|
||||
encoder.ValueEncoder.Encode(*((*unsafe.Pointer)(ptr)), stream)
|
||||
}
|
||||
}
|
||||
|
||||
func (encoder *OptionalEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return *((*unsafe.Pointer)(ptr)) == nil
|
||||
}
|
||||
|
||||
type dereferenceEncoder struct {
|
||||
ValueEncoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *dereferenceEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
if *((*unsafe.Pointer)(ptr)) == nil {
|
||||
stream.WriteNil()
|
||||
} else {
|
||||
encoder.ValueEncoder.Encode(*((*unsafe.Pointer)(ptr)), stream)
|
||||
}
|
||||
}
|
||||
|
||||
func (encoder *dereferenceEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
dePtr := *((*unsafe.Pointer)(ptr))
|
||||
if dePtr == nil {
|
||||
return true
|
||||
}
|
||||
return encoder.ValueEncoder.IsEmpty(dePtr)
|
||||
}
|
||||
|
||||
func (encoder *dereferenceEncoder) IsEmbeddedPtrNil(ptr unsafe.Pointer) bool {
|
||||
deReferenced := *((*unsafe.Pointer)(ptr))
|
||||
if deReferenced == nil {
|
||||
return true
|
||||
}
|
||||
isEmbeddedPtrNil, converted := encoder.ValueEncoder.(IsEmbeddedPtrNil)
|
||||
if !converted {
|
||||
return false
|
||||
}
|
||||
fieldPtr := unsafe.Pointer(deReferenced)
|
||||
return isEmbeddedPtrNil.IsEmbeddedPtrNil(fieldPtr)
|
||||
}
|
||||
|
||||
type referenceEncoder struct {
|
||||
encoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *referenceEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
encoder.encoder.Encode(unsafe.Pointer(&ptr), stream)
|
||||
}
|
||||
|
||||
func (encoder *referenceEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return encoder.encoder.IsEmpty(unsafe.Pointer(&ptr))
|
||||
}
|
||||
|
||||
type referenceDecoder struct {
|
||||
decoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *referenceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
decoder.decoder.Decode(unsafe.Pointer(&ptr), iter)
|
||||
}
|
|
@ -0,0 +1,99 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/modern-go/reflect2"
|
||||
"io"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
func decoderOfSlice(ctx *ctx, typ reflect2.Type) ValDecoder {
|
||||
sliceType := typ.(*reflect2.UnsafeSliceType)
|
||||
decoder := decoderOfType(ctx.append("[sliceElem]"), sliceType.Elem())
|
||||
return &sliceDecoder{sliceType, decoder}
|
||||
}
|
||||
|
||||
func encoderOfSlice(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
sliceType := typ.(*reflect2.UnsafeSliceType)
|
||||
encoder := encoderOfType(ctx.append("[sliceElem]"), sliceType.Elem())
|
||||
return &sliceEncoder{sliceType, encoder}
|
||||
}
|
||||
|
||||
type sliceEncoder struct {
|
||||
sliceType *reflect2.UnsafeSliceType
|
||||
elemEncoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *sliceEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
if encoder.sliceType.UnsafeIsNil(ptr) {
|
||||
stream.WriteNil()
|
||||
return
|
||||
}
|
||||
length := encoder.sliceType.UnsafeLengthOf(ptr)
|
||||
if length == 0 {
|
||||
stream.WriteEmptyArray()
|
||||
return
|
||||
}
|
||||
stream.WriteArrayStart()
|
||||
encoder.elemEncoder.Encode(encoder.sliceType.UnsafeGetIndex(ptr, 0), stream)
|
||||
for i := 1; i < length; i++ {
|
||||
stream.WriteMore()
|
||||
elemPtr := encoder.sliceType.UnsafeGetIndex(ptr, i)
|
||||
encoder.elemEncoder.Encode(elemPtr, stream)
|
||||
}
|
||||
stream.WriteArrayEnd()
|
||||
if stream.Error != nil && stream.Error != io.EOF {
|
||||
stream.Error = fmt.Errorf("%v: %s", encoder.sliceType, stream.Error.Error())
|
||||
}
|
||||
}
|
||||
|
||||
func (encoder *sliceEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return encoder.sliceType.UnsafeLengthOf(ptr) == 0
|
||||
}
|
||||
|
||||
type sliceDecoder struct {
|
||||
sliceType *reflect2.UnsafeSliceType
|
||||
elemDecoder ValDecoder
|
||||
}
|
||||
|
||||
func (decoder *sliceDecoder) Decode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
decoder.doDecode(ptr, iter)
|
||||
if iter.Error != nil && iter.Error != io.EOF {
|
||||
iter.Error = fmt.Errorf("%v: %s", decoder.sliceType, iter.Error.Error())
|
||||
}
|
||||
}
|
||||
|
||||
func (decoder *sliceDecoder) doDecode(ptr unsafe.Pointer, iter *Iterator) {
|
||||
c := iter.nextToken()
|
||||
sliceType := decoder.sliceType
|
||||
if c == 'n' {
|
||||
iter.skipThreeBytes('u', 'l', 'l')
|
||||
sliceType.UnsafeSetNil(ptr)
|
||||
return
|
||||
}
|
||||
if c != '[' {
|
||||
iter.ReportError("decode slice", "expect [ or n, but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
c = iter.nextToken()
|
||||
if c == ']' {
|
||||
sliceType.UnsafeSet(ptr, sliceType.UnsafeMakeSlice(0, 0))
|
||||
return
|
||||
}
|
||||
iter.unreadByte()
|
||||
sliceType.UnsafeGrow(ptr, 1)
|
||||
elemPtr := sliceType.UnsafeGetIndex(ptr, 0)
|
||||
decoder.elemDecoder.Decode(elemPtr, iter)
|
||||
length := 1
|
||||
for c = iter.nextToken(); c == ','; c = iter.nextToken() {
|
||||
idx := length
|
||||
length += 1
|
||||
sliceType.UnsafeGrow(ptr, length)
|
||||
elemPtr = sliceType.UnsafeGetIndex(ptr, idx)
|
||||
decoder.elemDecoder.Decode(elemPtr, iter)
|
||||
}
|
||||
if c != ']' {
|
||||
iter.ReportError("decode slice", "expect ], but found "+string([]byte{c}))
|
||||
return
|
||||
}
|
||||
}
|
File diff suppressed because it is too large
Load Diff
|
@ -0,0 +1,211 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/modern-go/reflect2"
|
||||
"io"
|
||||
"reflect"
|
||||
"unsafe"
|
||||
)
|
||||
|
||||
func encoderOfStruct(ctx *ctx, typ reflect2.Type) ValEncoder {
|
||||
type bindingTo struct {
|
||||
binding *Binding
|
||||
toName string
|
||||
ignored bool
|
||||
}
|
||||
orderedBindings := []*bindingTo{}
|
||||
structDescriptor := describeStruct(ctx, typ)
|
||||
for _, binding := range structDescriptor.Fields {
|
||||
for _, toName := range binding.ToNames {
|
||||
new := &bindingTo{
|
||||
binding: binding,
|
||||
toName: toName,
|
||||
}
|
||||
for _, old := range orderedBindings {
|
||||
if old.toName != toName {
|
||||
continue
|
||||
}
|
||||
old.ignored, new.ignored = resolveConflictBinding(ctx.frozenConfig, old.binding, new.binding)
|
||||
}
|
||||
orderedBindings = append(orderedBindings, new)
|
||||
}
|
||||
}
|
||||
if len(orderedBindings) == 0 {
|
||||
return &emptyStructEncoder{}
|
||||
}
|
||||
finalOrderedFields := []structFieldTo{}
|
||||
for _, bindingTo := range orderedBindings {
|
||||
if !bindingTo.ignored {
|
||||
finalOrderedFields = append(finalOrderedFields, structFieldTo{
|
||||
encoder: bindingTo.binding.Encoder.(*structFieldEncoder),
|
||||
toName: bindingTo.toName,
|
||||
})
|
||||
}
|
||||
}
|
||||
return &structEncoder{typ, finalOrderedFields}
|
||||
}
|
||||
|
||||
func createCheckIsEmpty(ctx *ctx, typ reflect2.Type) checkIsEmpty {
|
||||
encoder := createEncoderOfNative(ctx, typ)
|
||||
if encoder != nil {
|
||||
return encoder
|
||||
}
|
||||
kind := typ.Kind()
|
||||
switch kind {
|
||||
case reflect.Interface:
|
||||
return &dynamicEncoder{typ}
|
||||
case reflect.Struct:
|
||||
return &structEncoder{typ: typ}
|
||||
case reflect.Array:
|
||||
return &arrayEncoder{}
|
||||
case reflect.Slice:
|
||||
return &sliceEncoder{}
|
||||
case reflect.Map:
|
||||
return encoderOfMap(ctx, typ)
|
||||
case reflect.Ptr:
|
||||
return &OptionalEncoder{}
|
||||
default:
|
||||
return &lazyErrorEncoder{err: fmt.Errorf("unsupported type: %v", typ)}
|
||||
}
|
||||
}
|
||||
|
||||
func resolveConflictBinding(cfg *frozenConfig, old, new *Binding) (ignoreOld, ignoreNew bool) {
|
||||
newTagged := new.Field.Tag().Get(cfg.getTagKey()) != ""
|
||||
oldTagged := old.Field.Tag().Get(cfg.getTagKey()) != ""
|
||||
if newTagged {
|
||||
if oldTagged {
|
||||
if len(old.levels) > len(new.levels) {
|
||||
return true, false
|
||||
} else if len(new.levels) > len(old.levels) {
|
||||
return false, true
|
||||
} else {
|
||||
return true, true
|
||||
}
|
||||
} else {
|
||||
return true, false
|
||||
}
|
||||
} else {
|
||||
if oldTagged {
|
||||
return true, false
|
||||
}
|
||||
if len(old.levels) > len(new.levels) {
|
||||
return true, false
|
||||
} else if len(new.levels) > len(old.levels) {
|
||||
return false, true
|
||||
} else {
|
||||
return true, true
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
type structFieldEncoder struct {
|
||||
field reflect2.StructField
|
||||
fieldEncoder ValEncoder
|
||||
omitempty bool
|
||||
}
|
||||
|
||||
func (encoder *structFieldEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
fieldPtr := encoder.field.UnsafeGet(ptr)
|
||||
encoder.fieldEncoder.Encode(fieldPtr, stream)
|
||||
if stream.Error != nil && stream.Error != io.EOF {
|
||||
stream.Error = fmt.Errorf("%s: %s", encoder.field.Name(), stream.Error.Error())
|
||||
}
|
||||
}
|
||||
|
||||
func (encoder *structFieldEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
fieldPtr := encoder.field.UnsafeGet(ptr)
|
||||
return encoder.fieldEncoder.IsEmpty(fieldPtr)
|
||||
}
|
||||
|
||||
func (encoder *structFieldEncoder) IsEmbeddedPtrNil(ptr unsafe.Pointer) bool {
|
||||
isEmbeddedPtrNil, converted := encoder.fieldEncoder.(IsEmbeddedPtrNil)
|
||||
if !converted {
|
||||
return false
|
||||
}
|
||||
fieldPtr := encoder.field.UnsafeGet(ptr)
|
||||
return isEmbeddedPtrNil.IsEmbeddedPtrNil(fieldPtr)
|
||||
}
|
||||
|
||||
type IsEmbeddedPtrNil interface {
|
||||
IsEmbeddedPtrNil(ptr unsafe.Pointer) bool
|
||||
}
|
||||
|
||||
type structEncoder struct {
|
||||
typ reflect2.Type
|
||||
fields []structFieldTo
|
||||
}
|
||||
|
||||
type structFieldTo struct {
|
||||
encoder *structFieldEncoder
|
||||
toName string
|
||||
}
|
||||
|
||||
func (encoder *structEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteObjectStart()
|
||||
isNotFirst := false
|
||||
for _, field := range encoder.fields {
|
||||
if field.encoder.omitempty && field.encoder.IsEmpty(ptr) {
|
||||
continue
|
||||
}
|
||||
if field.encoder.IsEmbeddedPtrNil(ptr) {
|
||||
continue
|
||||
}
|
||||
if isNotFirst {
|
||||
stream.WriteMore()
|
||||
}
|
||||
stream.WriteObjectField(field.toName)
|
||||
field.encoder.Encode(ptr, stream)
|
||||
isNotFirst = true
|
||||
}
|
||||
stream.WriteObjectEnd()
|
||||
if stream.Error != nil && stream.Error != io.EOF {
|
||||
stream.Error = fmt.Errorf("%v.%s", encoder.typ, stream.Error.Error())
|
||||
}
|
||||
}
|
||||
|
||||
func (encoder *structEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return false
|
||||
}
|
||||
|
||||
type emptyStructEncoder struct {
|
||||
}
|
||||
|
||||
func (encoder *emptyStructEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.WriteEmptyObject()
|
||||
}
|
||||
|
||||
func (encoder *emptyStructEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return false
|
||||
}
|
||||
|
||||
type stringModeNumberEncoder struct {
|
||||
elemEncoder ValEncoder
|
||||
}
|
||||
|
||||
func (encoder *stringModeNumberEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
stream.writeByte('"')
|
||||
encoder.elemEncoder.Encode(ptr, stream)
|
||||
stream.writeByte('"')
|
||||
}
|
||||
|
||||
func (encoder *stringModeNumberEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return encoder.elemEncoder.IsEmpty(ptr)
|
||||
}
|
||||
|
||||
type stringModeStringEncoder struct {
|
||||
elemEncoder ValEncoder
|
||||
cfg *frozenConfig
|
||||
}
|
||||
|
||||
func (encoder *stringModeStringEncoder) Encode(ptr unsafe.Pointer, stream *Stream) {
|
||||
tempStream := encoder.cfg.BorrowStream(nil)
|
||||
tempStream.Attachment = stream.Attachment
|
||||
defer encoder.cfg.ReturnStream(tempStream)
|
||||
encoder.elemEncoder.Encode(ptr, tempStream)
|
||||
stream.WriteString(string(tempStream.Buffer()))
|
||||
}
|
||||
|
||||
func (encoder *stringModeStringEncoder) IsEmpty(ptr unsafe.Pointer) bool {
|
||||
return encoder.elemEncoder.IsEmpty(ptr)
|
||||
}
|
|
@ -0,0 +1,210 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"io"
|
||||
)
|
||||
|
||||
// stream is a io.Writer like object, with JSON specific write functions.
|
||||
// Error is not returned as return value, but stored as Error member on this stream instance.
|
||||
type Stream struct {
|
||||
cfg *frozenConfig
|
||||
out io.Writer
|
||||
buf []byte
|
||||
Error error
|
||||
indention int
|
||||
Attachment interface{} // open for customized encoder
|
||||
}
|
||||
|
||||
// NewStream create new stream instance.
|
||||
// cfg can be jsoniter.ConfigDefault.
|
||||
// out can be nil if write to internal buffer.
|
||||
// bufSize is the initial size for the internal buffer in bytes.
|
||||
func NewStream(cfg API, out io.Writer, bufSize int) *Stream {
|
||||
return &Stream{
|
||||
cfg: cfg.(*frozenConfig),
|
||||
out: out,
|
||||
buf: make([]byte, 0, bufSize),
|
||||
Error: nil,
|
||||
indention: 0,
|
||||
}
|
||||
}
|
||||
|
||||
// Pool returns a pool can provide more stream with same configuration
|
||||
func (stream *Stream) Pool() StreamPool {
|
||||
return stream.cfg
|
||||
}
|
||||
|
||||
// Reset reuse this stream instance by assign a new writer
|
||||
func (stream *Stream) Reset(out io.Writer) {
|
||||
stream.out = out
|
||||
stream.buf = stream.buf[:0]
|
||||
}
|
||||
|
||||
// Available returns how many bytes are unused in the buffer.
|
||||
func (stream *Stream) Available() int {
|
||||
return cap(stream.buf) - len(stream.buf)
|
||||
}
|
||||
|
||||
// Buffered returns the number of bytes that have been written into the current buffer.
|
||||
func (stream *Stream) Buffered() int {
|
||||
return len(stream.buf)
|
||||
}
|
||||
|
||||
// Buffer if writer is nil, use this method to take the result
|
||||
func (stream *Stream) Buffer() []byte {
|
||||
return stream.buf
|
||||
}
|
||||
|
||||
// SetBuffer allows to append to the internal buffer directly
|
||||
func (stream *Stream) SetBuffer(buf []byte) {
|
||||
stream.buf = buf
|
||||
}
|
||||
|
||||
// Write writes the contents of p into the buffer.
|
||||
// It returns the number of bytes written.
|
||||
// If nn < len(p), it also returns an error explaining
|
||||
// why the write is short.
|
||||
func (stream *Stream) Write(p []byte) (nn int, err error) {
|
||||
stream.buf = append(stream.buf, p...)
|
||||
if stream.out != nil {
|
||||
nn, err = stream.out.Write(stream.buf)
|
||||
stream.buf = stream.buf[nn:]
|
||||
return
|
||||
}
|
||||
return len(p), nil
|
||||
}
|
||||
|
||||
// WriteByte writes a single byte.
|
||||
func (stream *Stream) writeByte(c byte) {
|
||||
stream.buf = append(stream.buf, c)
|
||||
}
|
||||
|
||||
func (stream *Stream) writeTwoBytes(c1 byte, c2 byte) {
|
||||
stream.buf = append(stream.buf, c1, c2)
|
||||
}
|
||||
|
||||
func (stream *Stream) writeThreeBytes(c1 byte, c2 byte, c3 byte) {
|
||||
stream.buf = append(stream.buf, c1, c2, c3)
|
||||
}
|
||||
|
||||
func (stream *Stream) writeFourBytes(c1 byte, c2 byte, c3 byte, c4 byte) {
|
||||
stream.buf = append(stream.buf, c1, c2, c3, c4)
|
||||
}
|
||||
|
||||
func (stream *Stream) writeFiveBytes(c1 byte, c2 byte, c3 byte, c4 byte, c5 byte) {
|
||||
stream.buf = append(stream.buf, c1, c2, c3, c4, c5)
|
||||
}
|
||||
|
||||
// Flush writes any buffered data to the underlying io.Writer.
|
||||
func (stream *Stream) Flush() error {
|
||||
if stream.out == nil {
|
||||
return nil
|
||||
}
|
||||
if stream.Error != nil {
|
||||
return stream.Error
|
||||
}
|
||||
_, err := stream.out.Write(stream.buf)
|
||||
if err != nil {
|
||||
if stream.Error == nil {
|
||||
stream.Error = err
|
||||
}
|
||||
return err
|
||||
}
|
||||
stream.buf = stream.buf[:0]
|
||||
return nil
|
||||
}
|
||||
|
||||
// WriteRaw write string out without quotes, just like []byte
|
||||
func (stream *Stream) WriteRaw(s string) {
|
||||
stream.buf = append(stream.buf, s...)
|
||||
}
|
||||
|
||||
// WriteNil write null to stream
|
||||
func (stream *Stream) WriteNil() {
|
||||
stream.writeFourBytes('n', 'u', 'l', 'l')
|
||||
}
|
||||
|
||||
// WriteTrue write true to stream
|
||||
func (stream *Stream) WriteTrue() {
|
||||
stream.writeFourBytes('t', 'r', 'u', 'e')
|
||||
}
|
||||
|
||||
// WriteFalse write false to stream
|
||||
func (stream *Stream) WriteFalse() {
|
||||
stream.writeFiveBytes('f', 'a', 'l', 's', 'e')
|
||||
}
|
||||
|
||||
// WriteBool write true or false into stream
|
||||
func (stream *Stream) WriteBool(val bool) {
|
||||
if val {
|
||||
stream.WriteTrue()
|
||||
} else {
|
||||
stream.WriteFalse()
|
||||
}
|
||||
}
|
||||
|
||||
// WriteObjectStart write { with possible indention
|
||||
func (stream *Stream) WriteObjectStart() {
|
||||
stream.indention += stream.cfg.indentionStep
|
||||
stream.writeByte('{')
|
||||
stream.writeIndention(0)
|
||||
}
|
||||
|
||||
// WriteObjectField write "field": with possible indention
|
||||
func (stream *Stream) WriteObjectField(field string) {
|
||||
stream.WriteString(field)
|
||||
if stream.indention > 0 {
|
||||
stream.writeTwoBytes(':', ' ')
|
||||
} else {
|
||||
stream.writeByte(':')
|
||||
}
|
||||
}
|
||||
|
||||
// WriteObjectEnd write } with possible indention
|
||||
func (stream *Stream) WriteObjectEnd() {
|
||||
stream.writeIndention(stream.cfg.indentionStep)
|
||||
stream.indention -= stream.cfg.indentionStep
|
||||
stream.writeByte('}')
|
||||
}
|
||||
|
||||
// WriteEmptyObject write {}
|
||||
func (stream *Stream) WriteEmptyObject() {
|
||||
stream.writeByte('{')
|
||||
stream.writeByte('}')
|
||||
}
|
||||
|
||||
// WriteMore write , with possible indention
|
||||
func (stream *Stream) WriteMore() {
|
||||
stream.writeByte(',')
|
||||
stream.writeIndention(0)
|
||||
}
|
||||
|
||||
// WriteArrayStart write [ with possible indention
|
||||
func (stream *Stream) WriteArrayStart() {
|
||||
stream.indention += stream.cfg.indentionStep
|
||||
stream.writeByte('[')
|
||||
stream.writeIndention(0)
|
||||
}
|
||||
|
||||
// WriteEmptyArray write []
|
||||
func (stream *Stream) WriteEmptyArray() {
|
||||
stream.writeTwoBytes('[', ']')
|
||||
}
|
||||
|
||||
// WriteArrayEnd write ] with possible indention
|
||||
func (stream *Stream) WriteArrayEnd() {
|
||||
stream.writeIndention(stream.cfg.indentionStep)
|
||||
stream.indention -= stream.cfg.indentionStep
|
||||
stream.writeByte(']')
|
||||
}
|
||||
|
||||
func (stream *Stream) writeIndention(delta int) {
|
||||
if stream.indention == 0 {
|
||||
return
|
||||
}
|
||||
stream.writeByte('\n')
|
||||
toWrite := stream.indention - delta
|
||||
for i := 0; i < toWrite; i++ {
|
||||
stream.buf = append(stream.buf, ' ')
|
||||
}
|
||||
}
|
|
@ -0,0 +1,111 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"math"
|
||||
"strconv"
|
||||
)
|
||||
|
||||
var pow10 []uint64
|
||||
|
||||
func init() {
|
||||
pow10 = []uint64{1, 10, 100, 1000, 10000, 100000, 1000000}
|
||||
}
|
||||
|
||||
// WriteFloat32 write float32 to stream
|
||||
func (stream *Stream) WriteFloat32(val float32) {
|
||||
if math.IsInf(float64(val), 0) || math.IsNaN(float64(val)) {
|
||||
stream.Error = fmt.Errorf("unsupported value: %f", val)
|
||||
return
|
||||
}
|
||||
abs := math.Abs(float64(val))
|
||||
fmt := byte('f')
|
||||
// Note: Must use float32 comparisons for underlying float32 value to get precise cutoffs right.
|
||||
if abs != 0 {
|
||||
if float32(abs) < 1e-6 || float32(abs) >= 1e21 {
|
||||
fmt = 'e'
|
||||
}
|
||||
}
|
||||
stream.buf = strconv.AppendFloat(stream.buf, float64(val), fmt, -1, 32)
|
||||
}
|
||||
|
||||
// WriteFloat32Lossy write float32 to stream with ONLY 6 digits precision although much much faster
|
||||
func (stream *Stream) WriteFloat32Lossy(val float32) {
|
||||
if math.IsInf(float64(val), 0) || math.IsNaN(float64(val)) {
|
||||
stream.Error = fmt.Errorf("unsupported value: %f", val)
|
||||
return
|
||||
}
|
||||
if val < 0 {
|
||||
stream.writeByte('-')
|
||||
val = -val
|
||||
}
|
||||
if val > 0x4ffffff {
|
||||
stream.WriteFloat32(val)
|
||||
return
|
||||
}
|
||||
precision := 6
|
||||
exp := uint64(1000000) // 6
|
||||
lval := uint64(float64(val)*float64(exp) + 0.5)
|
||||
stream.WriteUint64(lval / exp)
|
||||
fval := lval % exp
|
||||
if fval == 0 {
|
||||
return
|
||||
}
|
||||
stream.writeByte('.')
|
||||
for p := precision - 1; p > 0 && fval < pow10[p]; p-- {
|
||||
stream.writeByte('0')
|
||||
}
|
||||
stream.WriteUint64(fval)
|
||||
for stream.buf[len(stream.buf)-1] == '0' {
|
||||
stream.buf = stream.buf[:len(stream.buf)-1]
|
||||
}
|
||||
}
|
||||
|
||||
// WriteFloat64 write float64 to stream
|
||||
func (stream *Stream) WriteFloat64(val float64) {
|
||||
if math.IsInf(val, 0) || math.IsNaN(val) {
|
||||
stream.Error = fmt.Errorf("unsupported value: %f", val)
|
||||
return
|
||||
}
|
||||
abs := math.Abs(val)
|
||||
fmt := byte('f')
|
||||
// Note: Must use float32 comparisons for underlying float32 value to get precise cutoffs right.
|
||||
if abs != 0 {
|
||||
if abs < 1e-6 || abs >= 1e21 {
|
||||
fmt = 'e'
|
||||
}
|
||||
}
|
||||
stream.buf = strconv.AppendFloat(stream.buf, float64(val), fmt, -1, 64)
|
||||
}
|
||||
|
||||
// WriteFloat64Lossy write float64 to stream with ONLY 6 digits precision although much much faster
|
||||
func (stream *Stream) WriteFloat64Lossy(val float64) {
|
||||
if math.IsInf(val, 0) || math.IsNaN(val) {
|
||||
stream.Error = fmt.Errorf("unsupported value: %f", val)
|
||||
return
|
||||
}
|
||||
if val < 0 {
|
||||
stream.writeByte('-')
|
||||
val = -val
|
||||
}
|
||||
if val > 0x4ffffff {
|
||||
stream.WriteFloat64(val)
|
||||
return
|
||||
}
|
||||
precision := 6
|
||||
exp := uint64(1000000) // 6
|
||||
lval := uint64(val*float64(exp) + 0.5)
|
||||
stream.WriteUint64(lval / exp)
|
||||
fval := lval % exp
|
||||
if fval == 0 {
|
||||
return
|
||||
}
|
||||
stream.writeByte('.')
|
||||
for p := precision - 1; p > 0 && fval < pow10[p]; p-- {
|
||||
stream.writeByte('0')
|
||||
}
|
||||
stream.WriteUint64(fval)
|
||||
for stream.buf[len(stream.buf)-1] == '0' {
|
||||
stream.buf = stream.buf[:len(stream.buf)-1]
|
||||
}
|
||||
}
|
|
@ -0,0 +1,190 @@
|
|||
package jsoniter
|
||||
|
||||
var digits []uint32
|
||||
|
||||
func init() {
|
||||
digits = make([]uint32, 1000)
|
||||
for i := uint32(0); i < 1000; i++ {
|
||||
digits[i] = (((i / 100) + '0') << 16) + ((((i / 10) % 10) + '0') << 8) + i%10 + '0'
|
||||
if i < 10 {
|
||||
digits[i] += 2 << 24
|
||||
} else if i < 100 {
|
||||
digits[i] += 1 << 24
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func writeFirstBuf(space []byte, v uint32) []byte {
|
||||
start := v >> 24
|
||||
if start == 0 {
|
||||
space = append(space, byte(v>>16), byte(v>>8))
|
||||
} else if start == 1 {
|
||||
space = append(space, byte(v>>8))
|
||||
}
|
||||
space = append(space, byte(v))
|
||||
return space
|
||||
}
|
||||
|
||||
func writeBuf(buf []byte, v uint32) []byte {
|
||||
return append(buf, byte(v>>16), byte(v>>8), byte(v))
|
||||
}
|
||||
|
||||
// WriteUint8 write uint8 to stream
|
||||
func (stream *Stream) WriteUint8(val uint8) {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[val])
|
||||
}
|
||||
|
||||
// WriteInt8 write int8 to stream
|
||||
func (stream *Stream) WriteInt8(nval int8) {
|
||||
var val uint8
|
||||
if nval < 0 {
|
||||
val = uint8(-nval)
|
||||
stream.buf = append(stream.buf, '-')
|
||||
} else {
|
||||
val = uint8(nval)
|
||||
}
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[val])
|
||||
}
|
||||
|
||||
// WriteUint16 write uint16 to stream
|
||||
func (stream *Stream) WriteUint16(val uint16) {
|
||||
q1 := val / 1000
|
||||
if q1 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[val])
|
||||
return
|
||||
}
|
||||
r1 := val - q1*1000
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q1])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
return
|
||||
}
|
||||
|
||||
// WriteInt16 write int16 to stream
|
||||
func (stream *Stream) WriteInt16(nval int16) {
|
||||
var val uint16
|
||||
if nval < 0 {
|
||||
val = uint16(-nval)
|
||||
stream.buf = append(stream.buf, '-')
|
||||
} else {
|
||||
val = uint16(nval)
|
||||
}
|
||||
stream.WriteUint16(val)
|
||||
}
|
||||
|
||||
// WriteUint32 write uint32 to stream
|
||||
func (stream *Stream) WriteUint32(val uint32) {
|
||||
q1 := val / 1000
|
||||
if q1 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[val])
|
||||
return
|
||||
}
|
||||
r1 := val - q1*1000
|
||||
q2 := q1 / 1000
|
||||
if q2 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q1])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
return
|
||||
}
|
||||
r2 := q1 - q2*1000
|
||||
q3 := q2 / 1000
|
||||
if q3 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q2])
|
||||
} else {
|
||||
r3 := q2 - q3*1000
|
||||
stream.buf = append(stream.buf, byte(q3+'0'))
|
||||
stream.buf = writeBuf(stream.buf, digits[r3])
|
||||
}
|
||||
stream.buf = writeBuf(stream.buf, digits[r2])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
}
|
||||
|
||||
// WriteInt32 write int32 to stream
|
||||
func (stream *Stream) WriteInt32(nval int32) {
|
||||
var val uint32
|
||||
if nval < 0 {
|
||||
val = uint32(-nval)
|
||||
stream.buf = append(stream.buf, '-')
|
||||
} else {
|
||||
val = uint32(nval)
|
||||
}
|
||||
stream.WriteUint32(val)
|
||||
}
|
||||
|
||||
// WriteUint64 write uint64 to stream
|
||||
func (stream *Stream) WriteUint64(val uint64) {
|
||||
q1 := val / 1000
|
||||
if q1 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[val])
|
||||
return
|
||||
}
|
||||
r1 := val - q1*1000
|
||||
q2 := q1 / 1000
|
||||
if q2 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q1])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
return
|
||||
}
|
||||
r2 := q1 - q2*1000
|
||||
q3 := q2 / 1000
|
||||
if q3 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q2])
|
||||
stream.buf = writeBuf(stream.buf, digits[r2])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
return
|
||||
}
|
||||
r3 := q2 - q3*1000
|
||||
q4 := q3 / 1000
|
||||
if q4 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q3])
|
||||
stream.buf = writeBuf(stream.buf, digits[r3])
|
||||
stream.buf = writeBuf(stream.buf, digits[r2])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
return
|
||||
}
|
||||
r4 := q3 - q4*1000
|
||||
q5 := q4 / 1000
|
||||
if q5 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q4])
|
||||
stream.buf = writeBuf(stream.buf, digits[r4])
|
||||
stream.buf = writeBuf(stream.buf, digits[r3])
|
||||
stream.buf = writeBuf(stream.buf, digits[r2])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
return
|
||||
}
|
||||
r5 := q4 - q5*1000
|
||||
q6 := q5 / 1000
|
||||
if q6 == 0 {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q5])
|
||||
} else {
|
||||
stream.buf = writeFirstBuf(stream.buf, digits[q6])
|
||||
r6 := q5 - q6*1000
|
||||
stream.buf = writeBuf(stream.buf, digits[r6])
|
||||
}
|
||||
stream.buf = writeBuf(stream.buf, digits[r5])
|
||||
stream.buf = writeBuf(stream.buf, digits[r4])
|
||||
stream.buf = writeBuf(stream.buf, digits[r3])
|
||||
stream.buf = writeBuf(stream.buf, digits[r2])
|
||||
stream.buf = writeBuf(stream.buf, digits[r1])
|
||||
}
|
||||
|
||||
// WriteInt64 write int64 to stream
|
||||
func (stream *Stream) WriteInt64(nval int64) {
|
||||
var val uint64
|
||||
if nval < 0 {
|
||||
val = uint64(-nval)
|
||||
stream.buf = append(stream.buf, '-')
|
||||
} else {
|
||||
val = uint64(nval)
|
||||
}
|
||||
stream.WriteUint64(val)
|
||||
}
|
||||
|
||||
// WriteInt write int to stream
|
||||
func (stream *Stream) WriteInt(val int) {
|
||||
stream.WriteInt64(int64(val))
|
||||
}
|
||||
|
||||
// WriteUint write uint to stream
|
||||
func (stream *Stream) WriteUint(val uint) {
|
||||
stream.WriteUint64(uint64(val))
|
||||
}
|
|
@ -0,0 +1,372 @@
|
|||
package jsoniter
|
||||
|
||||
import (
|
||||
"unicode/utf8"
|
||||
)
|
||||
|
||||
// htmlSafeSet holds the value true if the ASCII character with the given
|
||||
// array position can be safely represented inside a JSON string, embedded
|
||||
// inside of HTML <script> tags, without any additional escaping.
|
||||
//
|
||||
// All values are true except for the ASCII control characters (0-31), the
|
||||
// double quote ("), the backslash character ("\"), HTML opening and closing
|
||||
// tags ("<" and ">"), and the ampersand ("&").
|
||||
var htmlSafeSet = [utf8.RuneSelf]bool{
|
||||
' ': true,
|
||||
'!': true,
|
||||
'"': false,
|
||||
'#': true,
|
||||
'$': true,
|
||||
'%': true,
|
||||
'&': false,
|
||||
'\'': true,
|
||||
'(': true,
|
||||
')': true,
|
||||
'*': true,
|
||||
'+': true,
|
||||
',': true,
|
||||
'-': true,
|
||||
'.': true,
|
||||
'/': true,
|
||||
'0': true,
|
||||
'1': true,
|
||||
'2': true,
|
||||
'3': true,
|
||||
'4': true,
|
||||
'5': true,
|
||||
'6': true,
|
||||
'7': true,
|
||||
'8': true,
|
||||
'9': true,
|
||||
':': true,
|
||||
';': true,
|
||||
'<': false,
|
||||
'=': true,
|
||||
'>': false,
|
||||
'?': true,
|
||||
'@': true,
|
||||
'A': true,
|
||||
'B': true,
|
||||
'C': true,
|
||||
'D': true,
|
||||
'E': true,
|
||||
'F': true,
|
||||
'G': true,
|
||||
'H': true,
|
||||
'I': true,
|
||||
'J': true,
|
||||
'K': true,
|
||||
'L': true,
|
||||
'M': true,
|
||||
'N': true,
|
||||
'O': true,
|
||||
'P': true,
|
||||
'Q': true,
|
||||
'R': true,
|
||||
'S': true,
|
||||
'T': true,
|
||||
'U': true,
|
||||
'V': true,
|
||||
'W': true,
|
||||
'X': true,
|
||||
'Y': true,
|
||||
'Z': true,
|
||||
'[': true,
|
||||
'\\': false,
|
||||
']': true,
|
||||
'^': true,
|
||||
'_': true,
|
||||
'`': true,
|
||||
'a': true,
|
||||
'b': true,
|
||||
'c': true,
|
||||
'd': true,
|
||||
'e': true,
|
||||
'f': true,
|
||||
'g': true,
|
||||
'h': true,
|
||||
'i': true,
|
||||
'j': true,
|
||||
'k': true,
|
||||
'l': true,
|
||||
'm': true,
|
||||
'n': true,
|
||||
'o': true,
|
||||
'p': true,
|
||||
'q': true,
|
||||
'r': true,
|
||||
's': true,
|
||||
't': true,
|
||||
'u': true,
|
||||
'v': true,
|
||||
'w': true,
|
||||
'x': true,
|
||||
'y': true,
|
||||
'z': true,
|
||||
'{': true,
|
||||
'|': true,
|
||||
'}': true,
|
||||
'~': true,
|
||||
'\u007f': true,
|
||||
}
|
||||
|
||||
// safeSet holds the value true if the ASCII character with the given array
|
||||
// position can be represented inside a JSON string without any further
|
||||
// escaping.
|
||||
//
|
||||
// All values are true except for the ASCII control characters (0-31), the
|
||||
// double quote ("), and the backslash character ("\").
|
||||
var safeSet = [utf8.RuneSelf]bool{
|
||||
' ': true,
|
||||
'!': true,
|
||||
'"': false,
|
||||
'#': true,
|
||||
'$': true,
|
||||
'%': true,
|
||||
'&': true,
|
||||
'\'': true,
|
||||
'(': true,
|
||||
')': true,
|
||||
'*': true,
|
||||
'+': true,
|
||||
',': true,
|
||||
'-': true,
|
||||
'.': true,
|
||||
'/': true,
|
||||
'0': true,
|
||||
'1': true,
|
||||
'2': true,
|
||||
'3': true,
|
||||
'4': true,
|
||||
'5': true,
|
||||
'6': true,
|
||||
'7': true,
|
||||
'8': true,
|
||||
'9': true,
|
||||
':': true,
|
||||
';': true,
|
||||
'<': true,
|
||||
'=': true,
|
||||
'>': true,
|
||||
'?': true,
|
||||
'@': true,
|
||||
'A': true,
|
||||
'B': true,
|
||||
'C': true,
|
||||
'D': true,
|
||||
'E': true,
|
||||
'F': true,
|
||||
'G': true,
|
||||
'H': true,
|
||||
'I': true,
|
||||
'J': true,
|
||||
'K': true,
|
||||
'L': true,
|
||||
'M': true,
|
||||
'N': true,
|
||||
'O': true,
|
||||
'P': true,
|
||||
'Q': true,
|
||||
'R': true,
|
||||
'S': true,
|
||||
'T': true,
|
||||
'U': true,
|
||||
'V': true,
|
||||
'W': true,
|
||||
'X': true,
|
||||
'Y': true,
|
||||
'Z': true,
|
||||
'[': true,
|
||||
'\\': false,
|
||||
']': true,
|
||||
'^': true,
|
||||
'_': true,
|
||||
'`': true,
|
||||
'a': true,
|
||||
'b': true,
|
||||
'c': true,
|
||||
'd': true,
|
||||
'e': true,
|
||||
'f': true,
|
||||
'g': true,
|
||||
'h': true,
|
||||
'i': true,
|
||||
'j': true,
|
||||
'k': true,
|
||||
'l': true,
|
||||
'm': true,
|
||||
'n': true,
|
||||
'o': true,
|
||||
'p': true,
|
||||
'q': true,
|
||||
'r': true,
|
||||
's': true,
|
||||
't': true,
|
||||
'u': true,
|
||||
'v': true,
|
||||
'w': true,
|
||||
'x': true,
|
||||
'y': true,
|
||||
'z': true,
|
||||
'{': true,
|
||||
'|': true,
|
||||
'}': true,
|
||||
'~': true,
|
||||
'\u007f': true,
|
||||
}
|
||||
|
||||
var hex = "0123456789abcdef"
|
||||
|
||||
// WriteStringWithHTMLEscaped write string to stream with html special characters escaped
|
||||
func (stream *Stream) WriteStringWithHTMLEscaped(s string) {
|
||||
valLen := len(s)
|
||||
stream.buf = append(stream.buf, '"')
|
||||
// write string, the fast path, without utf8 and escape support
|
||||
i := 0
|
||||
for ; i < valLen; i++ {
|
||||
c := s[i]
|
||||
if c < utf8.RuneSelf && htmlSafeSet[c] {
|
||||
stream.buf = append(stream.buf, c)
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
if i == valLen {
|
||||
stream.buf = append(stream.buf, '"')
|
||||
return
|
||||
}
|
||||
writeStringSlowPathWithHTMLEscaped(stream, i, s, valLen)
|
||||
}
|
||||
|
||||
func writeStringSlowPathWithHTMLEscaped(stream *Stream, i int, s string, valLen int) {
|
||||
start := i
|
||||
// for the remaining parts, we process them char by char
|
||||
for i < valLen {
|
||||
if b := s[i]; b < utf8.RuneSelf {
|
||||
if htmlSafeSet[b] {
|
||||
i++
|
||||
continue
|
||||
}
|
||||
if start < i {
|
||||
stream.WriteRaw(s[start:i])
|
||||
}
|
||||
switch b {
|
||||
case '\\', '"':
|
||||
stream.writeTwoBytes('\\', b)
|
||||
case '\n':
|
||||
stream.writeTwoBytes('\\', 'n')
|
||||
case '\r':
|
||||
stream.writeTwoBytes('\\', 'r')
|
||||
case '\t':
|
||||
stream.writeTwoBytes('\\', 't')
|
||||
default:
|
||||
// This encodes bytes < 0x20 except for \t, \n and \r.
|
||||
// If escapeHTML is set, it also escapes <, >, and &
|
||||
// because they can lead to security holes when
|
||||
// user-controlled strings are rendered into JSON
|
||||
// and served to some browsers.
|
||||
stream.WriteRaw(`\u00`)
|
||||
stream.writeTwoBytes(hex[b>>4], hex[b&0xF])
|
||||
}
|
||||
i++
|
||||
start = i
|
||||
continue
|
||||
}
|
||||
c, size := utf8.DecodeRuneInString(s[i:])
|
||||
if c == utf8.RuneError && size == 1 {
|
||||
if start < i {
|
||||
stream.WriteRaw(s[start:i])
|
||||
}
|
||||
stream.WriteRaw(`\ufffd`)
|
||||
i++
|
||||
start = i
|
||||
continue
|
||||
}
|
||||
// U+2028 is LINE SEPARATOR.
|
||||
// U+2029 is PARAGRAPH SEPARATOR.
|
||||
// They are both technically valid characters in JSON strings,
|
||||
// but don't work in JSONP, which has to be evaluated as JavaScript,
|
||||
// and can lead to security holes there. It is valid JSON to
|
||||
// escape them, so we do so unconditionally.
|
||||
// See http://timelessrepo.com/json-isnt-a-javascript-subset for discussion.
|
||||
if c == '\u2028' || c == '\u2029' {
|
||||
if start < i {
|
||||
stream.WriteRaw(s[start:i])
|
||||
}
|
||||
stream.WriteRaw(`\u202`)
|
||||
stream.writeByte(hex[c&0xF])
|
||||
i += size
|
||||
start = i
|
||||
continue
|
||||
}
|
||||
i += size
|
||||
}
|
||||
if start < len(s) {
|
||||
stream.WriteRaw(s[start:])
|
||||
}
|
||||
stream.writeByte('"')
|
||||
}
|
||||
|
||||
// WriteString write string to stream without html escape
|
||||
func (stream *Stream) WriteString(s string) {
|
||||
valLen := len(s)
|
||||
stream.buf = append(stream.buf, '"')
|
||||
// write string, the fast path, without utf8 and escape support
|
||||
i := 0
|
||||
for ; i < valLen; i++ {
|
||||
c := s[i]
|
||||
if c > 31 && c != '"' && c != '\\' {
|
||||
stream.buf = append(stream.buf, c)
|
||||
} else {
|
||||
break
|
||||
}
|
||||
}
|
||||
if i == valLen {
|
||||
stream.buf = append(stream.buf, '"')
|
||||
return
|
||||
}
|
||||
writeStringSlowPath(stream, i, s, valLen)
|
||||
}
|
||||
|
||||
func writeStringSlowPath(stream *Stream, i int, s string, valLen int) {
|
||||
start := i
|
||||
// for the remaining parts, we process them char by char
|
||||
for i < valLen {
|
||||
if b := s[i]; b < utf8.RuneSelf {
|
||||
if safeSet[b] {
|
||||
i++
|
||||
continue
|
||||
}
|
||||
if start < i {
|
||||
stream.WriteRaw(s[start:i])
|
||||
}
|
||||
switch b {
|
||||
case '\\', '"':
|
||||
stream.writeTwoBytes('\\', b)
|
||||
case '\n':
|
||||
stream.writeTwoBytes('\\', 'n')
|
||||
case '\r':
|
||||
stream.writeTwoBytes('\\', 'r')
|
||||
case '\t':
|
||||
stream.writeTwoBytes('\\', 't')
|
||||
default:
|
||||
// This encodes bytes < 0x20 except for \t, \n and \r.
|
||||
// If escapeHTML is set, it also escapes <, >, and &
|
||||
// because they can lead to security holes when
|
||||
// user-controlled strings are rendered into JSON
|
||||
// and served to some browsers.
|
||||
stream.WriteRaw(`\u00`)
|
||||
stream.writeTwoBytes(hex[b>>4], hex[b&0xF])
|
||||
}
|
||||
i++
|
||||
start = i
|
||||
continue
|
||||
}
|
||||
i++
|
||||
continue
|
||||
}
|
||||
if start < len(s) {
|
||||
stream.WriteRaw(s[start:])
|
||||
}
|
||||
stream.writeByte('"')
|
||||
}
|
|
@ -0,0 +1,12 @@
|
|||
#!/usr/bin/env bash
|
||||
|
||||
set -e
|
||||
echo "" > coverage.txt
|
||||
|
||||
for d in $(go list ./... | grep -v vendor); do
|
||||
go test -coverprofile=profile.out -coverpkg=github.com/json-iterator/go $d
|
||||
if [ -f profile.out ]; then
|
||||
cat profile.out >> coverage.txt
|
||||
rm profile.out
|
||||
fi
|
||||
done
|
|
@ -0,0 +1 @@
|
|||
/coverage.txt
|
Some files were not shown because too many files have changed in this diff Show More
Loading…
Reference in New Issue