133 lines
3.8 KiB
JavaScript
133 lines
3.8 KiB
JavaScript
"use strict";
|
|
|
|
Object.defineProperty(exports, "__esModule", {
|
|
value: true
|
|
});
|
|
exports.edit = edit;
|
|
exports.editWithAST = editWithAST;
|
|
exports.add = add;
|
|
exports.addWithAST = addWithAST;
|
|
|
|
var _wasmParser = require("@webassemblyjs/wasm-parser");
|
|
|
|
var _ast = require("@webassemblyjs/ast");
|
|
|
|
var _clone = require("@webassemblyjs/ast/lib/clone");
|
|
|
|
var _wasmOpt = require("@webassemblyjs/wasm-opt");
|
|
|
|
var _helperWasmBytecode = _interopRequireWildcard(require("@webassemblyjs/helper-wasm-bytecode"));
|
|
|
|
var _apply = require("./apply");
|
|
|
|
function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
|
|
|
|
function hashNode(node) {
|
|
return JSON.stringify(node);
|
|
}
|
|
|
|
function preprocess(ab) {
|
|
var optBin = (0, _wasmOpt.shrinkPaddedLEB128)(new Uint8Array(ab));
|
|
return optBin.buffer;
|
|
}
|
|
|
|
function sortBySectionOrder(nodes) {
|
|
var originalOrder = new Map();
|
|
var _iteratorNormalCompletion = true;
|
|
var _didIteratorError = false;
|
|
var _iteratorError = undefined;
|
|
|
|
try {
|
|
for (var _iterator = nodes[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
|
|
var _node = _step.value;
|
|
originalOrder.set(_node, originalOrder.size);
|
|
}
|
|
} catch (err) {
|
|
_didIteratorError = true;
|
|
_iteratorError = err;
|
|
} finally {
|
|
try {
|
|
if (!_iteratorNormalCompletion && _iterator.return != null) {
|
|
_iterator.return();
|
|
}
|
|
} finally {
|
|
if (_didIteratorError) {
|
|
throw _iteratorError;
|
|
}
|
|
}
|
|
}
|
|
|
|
nodes.sort(function (a, b) {
|
|
var sectionA = (0, _helperWasmBytecode.getSectionForNode)(a);
|
|
var sectionB = (0, _helperWasmBytecode.getSectionForNode)(b);
|
|
var aId = _helperWasmBytecode.default.sections[sectionA];
|
|
var bId = _helperWasmBytecode.default.sections[sectionB];
|
|
|
|
if (typeof aId !== "number" || typeof bId !== "number") {
|
|
throw new Error("Section id not found");
|
|
}
|
|
|
|
if (aId === bId) {
|
|
// $FlowIgnore originalOrder is filled for all nodes
|
|
return originalOrder.get(a) - originalOrder.get(b);
|
|
}
|
|
|
|
return aId - bId;
|
|
});
|
|
}
|
|
|
|
function edit(ab, visitors) {
|
|
ab = preprocess(ab);
|
|
var ast = (0, _wasmParser.decode)(ab);
|
|
return editWithAST(ast, ab, visitors);
|
|
}
|
|
|
|
function editWithAST(ast, ab, visitors) {
|
|
var operations = [];
|
|
var uint8Buffer = new Uint8Array(ab);
|
|
var nodeBefore;
|
|
|
|
function before(type, path) {
|
|
nodeBefore = (0, _clone.cloneNode)(path.node);
|
|
}
|
|
|
|
function after(type, path) {
|
|
if (path.node._deleted === true) {
|
|
operations.push({
|
|
kind: "delete",
|
|
node: path.node
|
|
}); // $FlowIgnore
|
|
} else if (hashNode(nodeBefore) !== hashNode(path.node)) {
|
|
operations.push({
|
|
kind: "update",
|
|
oldNode: nodeBefore,
|
|
node: path.node
|
|
});
|
|
}
|
|
}
|
|
|
|
(0, _ast.traverse)(ast, visitors, before, after);
|
|
uint8Buffer = (0, _apply.applyOperations)(ast, uint8Buffer, operations);
|
|
return uint8Buffer.buffer;
|
|
}
|
|
|
|
function add(ab, newNodes) {
|
|
ab = preprocess(ab);
|
|
var ast = (0, _wasmParser.decode)(ab);
|
|
return addWithAST(ast, ab, newNodes);
|
|
}
|
|
|
|
function addWithAST(ast, ab, newNodes) {
|
|
// Sort nodes by insertion order
|
|
sortBySectionOrder(newNodes);
|
|
var uint8Buffer = new Uint8Array(ab); // Map node into operations
|
|
|
|
var operations = newNodes.map(function (n) {
|
|
return {
|
|
kind: "add",
|
|
node: n
|
|
};
|
|
});
|
|
uint8Buffer = (0, _apply.applyOperations)(ast, uint8Buffer, operations);
|
|
return uint8Buffer.buffer;
|
|
} |