katoikia-app/web-ui/web-react/node_modules/eslint-plugin-import/lib/rules/no-duplicates.js

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2022-07-06 04:15:11 +00:00
'use strict';
var _slicedToArray = function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"]) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } }; }();
var _resolve = require('eslint-module-utils/resolve');
var _resolve2 = _interopRequireDefault(_resolve);
var _docsUrl = require('../docsUrl');
var _docsUrl2 = _interopRequireDefault(_docsUrl);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i]; return arr2; } else { return Array.from(arr); } }
function _toArray(arr) { return Array.isArray(arr) ? arr : Array.from(arr); }
function checkImports(imported, context) {
for (const _ref of imported.entries()) {
var _ref2 = _slicedToArray(_ref, 2);
const module = _ref2[0];
const nodes = _ref2[1];
if (nodes.length > 1) {
const message = `'${module}' imported multiple times.`;
var _nodes = _toArray(nodes);
const first = _nodes[0],
rest = _nodes.slice(1);
const sourceCode = context.getSourceCode();
const fix = getFix(first, rest, sourceCode);
context.report({
node: first.source,
message,
fix // Attach the autofix (if any) to the first import.
});
for (const node of rest) {
context.report({
node: node.source,
message
});
}
}
}
}
function getFix(first, rest, sourceCode) {
// Sorry ESLint <= 3 users, no autofix for you. Autofixing duplicate imports
// requires multiple `fixer.whatever()` calls in the `fix`: We both need to
// update the first one, and remove the rest. Support for multiple
// `fixer.whatever()` in a single `fix` was added in ESLint 4.1.
// `sourceCode.getCommentsBefore` was added in 4.0, so that's an easy thing to
// check for.
if (typeof sourceCode.getCommentsBefore !== 'function') {
return undefined;
}
// Adjusting the first import might make it multiline, which could break
// `eslint-disable-next-line` comments and similar, so bail if the first
// import has comments. Also, if the first import is `import * as ns from
// './foo'` there's nothing we can do.
if (hasProblematicComments(first, sourceCode) || hasNamespace(first)) {
return undefined;
}
const defaultImportNames = new Set([first].concat(_toConsumableArray(rest)).map(getDefaultImportName).filter(Boolean));
// Bail if there are multiple different default import names it's up to the
// user to choose which one to keep.
if (defaultImportNames.size > 1) {
return undefined;
}
// Leave it to the user to handle comments. Also skip `import * as ns from
// './foo'` imports, since they cannot be merged into another import.
const restWithoutComments = rest.filter(node => !(hasProblematicComments(node, sourceCode) || hasNamespace(node)));
const specifiers = restWithoutComments.map(node => {
const tokens = sourceCode.getTokens(node);
const openBrace = tokens.find(token => isPunctuator(token, '{'));
const closeBrace = tokens.find(token => isPunctuator(token, '}'));
if (openBrace == null || closeBrace == null) {
return undefined;
}
return {
importNode: node,
text: sourceCode.text.slice(openBrace.range[1], closeBrace.range[0]),
hasTrailingComma: isPunctuator(sourceCode.getTokenBefore(closeBrace), ','),
isEmpty: !hasSpecifiers(node)
};
}).filter(Boolean);
const unnecessaryImports = restWithoutComments.filter(node => !hasSpecifiers(node) && !hasNamespace(node) && !specifiers.some(specifier => specifier.importNode === node));
const shouldAddDefault = getDefaultImportName(first) == null && defaultImportNames.size === 1;
const shouldAddSpecifiers = specifiers.length > 0;
const shouldRemoveUnnecessary = unnecessaryImports.length > 0;
if (!(shouldAddDefault || shouldAddSpecifiers || shouldRemoveUnnecessary)) {
return undefined;
}
return fixer => {
const tokens = sourceCode.getTokens(first);
const openBrace = tokens.find(token => isPunctuator(token, '{'));
const closeBrace = tokens.find(token => isPunctuator(token, '}'));
const firstToken = sourceCode.getFirstToken(first);
var _defaultImportNames = _slicedToArray(defaultImportNames, 1);
const defaultImportName = _defaultImportNames[0];
const firstHasTrailingComma = closeBrace != null && isPunctuator(sourceCode.getTokenBefore(closeBrace), ',');
const firstIsEmpty = !hasSpecifiers(first);
var _specifiers$reduce = specifiers.reduce((_ref3, specifier) => {
var _ref4 = _slicedToArray(_ref3, 2);
let result = _ref4[0],
needsComma = _ref4[1];
return [needsComma && !specifier.isEmpty ? `${result},${specifier.text}` : `${result}${specifier.text}`, specifier.isEmpty ? needsComma : true];
}, ['', !firstHasTrailingComma && !firstIsEmpty]),
_specifiers$reduce2 = _slicedToArray(_specifiers$reduce, 1);
const specifiersText = _specifiers$reduce2[0];
const fixes = [];
if (shouldAddDefault && openBrace == null && shouldAddSpecifiers) {
// `import './foo'` → `import def, {...} from './foo'`
fixes.push(fixer.insertTextAfter(firstToken, ` ${defaultImportName}, {${specifiersText}} from`));
} else if (shouldAddDefault && openBrace == null && !shouldAddSpecifiers) {
// `import './foo'` → `import def from './foo'`
fixes.push(fixer.insertTextAfter(firstToken, ` ${defaultImportName} from`));
} else if (shouldAddDefault && openBrace != null && closeBrace != null) {
// `import {...} from './foo'` → `import def, {...} from './foo'`
fixes.push(fixer.insertTextAfter(firstToken, ` ${defaultImportName},`));
if (shouldAddSpecifiers) {
// `import def, {...} from './foo'` → `import def, {..., ...} from './foo'`
fixes.push(fixer.insertTextBefore(closeBrace, specifiersText));
}
} else if (!shouldAddDefault && openBrace == null && shouldAddSpecifiers) {
// `import './foo'` → `import {...} from './foo'`
fixes.push(fixer.insertTextAfter(firstToken, ` {${specifiersText}} from`));
} else if (!shouldAddDefault && openBrace != null && closeBrace != null) {
// `import {...} './foo'` → `import {..., ...} from './foo'`
fixes.push(fixer.insertTextBefore(closeBrace, specifiersText));
}
// Remove imports whose specifiers have been moved into the first import.
for (const specifier of specifiers) {
fixes.push(fixer.remove(specifier.importNode));
}
// Remove imports whose default import has been moved to the first import,
// and side-effect-only imports that are unnecessary due to the first
// import.
for (const node of unnecessaryImports) {
fixes.push(fixer.remove(node));
}
return fixes;
};
}
function isPunctuator(node, value) {
return node.type === 'Punctuator' && node.value === value;
}
// Get the name of the default import of `node`, if any.
function getDefaultImportName(node) {
const defaultSpecifier = node.specifiers.find(specifier => specifier.type === 'ImportDefaultSpecifier');
return defaultSpecifier != null ? defaultSpecifier.local.name : undefined;
}
// Checks whether `node` has a namespace import.
function hasNamespace(node) {
const specifiers = node.specifiers.filter(specifier => specifier.type === 'ImportNamespaceSpecifier');
return specifiers.length > 0;
}
// Checks whether `node` has any non-default specifiers.
function hasSpecifiers(node) {
const specifiers = node.specifiers.filter(specifier => specifier.type === 'ImportSpecifier');
return specifiers.length > 0;
}
// It's not obvious what the user wants to do with comments associated with
// duplicate imports, so skip imports with comments when autofixing.
function hasProblematicComments(node, sourceCode) {
return hasCommentBefore(node, sourceCode) || hasCommentAfter(node, sourceCode) || hasCommentInsideNonSpecifiers(node, sourceCode);
}
// Checks whether `node` has a comment (that ends) on the previous line or on
// the same line as `node` (starts).
function hasCommentBefore(node, sourceCode) {
return sourceCode.getCommentsBefore(node).some(comment => comment.loc.end.line >= node.loc.start.line - 1);
}
// Checks whether `node` has a comment (that starts) on the same line as `node`
// (ends).
function hasCommentAfter(node, sourceCode) {
return sourceCode.getCommentsAfter(node).some(comment => comment.loc.start.line === node.loc.end.line);
}
// Checks whether `node` has any comments _inside,_ except inside the `{...}`
// part (if any).
function hasCommentInsideNonSpecifiers(node, sourceCode) {
const tokens = sourceCode.getTokens(node);
const openBraceIndex = tokens.findIndex(token => isPunctuator(token, '{'));
const closeBraceIndex = tokens.findIndex(token => isPunctuator(token, '}'));
// Slice away the first token, since we're no looking for comments _before_
// `node` (only inside). If there's a `{...}` part, look for comments before
// the `{`, but not before the `}` (hence the `+1`s).
const someTokens = openBraceIndex >= 0 && closeBraceIndex >= 0 ? tokens.slice(1, openBraceIndex + 1).concat(tokens.slice(closeBraceIndex + 1)) : tokens.slice(1);
return someTokens.some(token => sourceCode.getCommentsBefore(token).length > 0);
}
module.exports = {
meta: {
type: 'problem',
docs: {
url: (0, _docsUrl2.default)('no-duplicates')
},
fixable: 'code',
schema: [{
type: 'object',
properties: {
considerQueryString: {
type: 'boolean'
}
},
additionalProperties: false
}]
},
create: function (context) {
// Prepare the resolver from options.
const considerQueryStringOption = context.options[0] && context.options[0]['considerQueryString'];
const defaultResolver = sourcePath => (0, _resolve2.default)(sourcePath, context) || sourcePath;
const resolver = considerQueryStringOption ? sourcePath => {
const parts = sourcePath.match(/^([^?]*)\?(.*)$/);
if (!parts) {
return defaultResolver(sourcePath);
}
return defaultResolver(parts[1]) + '?' + parts[2];
} : defaultResolver;
const imported = new Map();
const nsImported = new Map();
const typesImported = new Map();
return {
'ImportDeclaration': function (n) {
// resolved path will cover aliased duplicates
const resolvedPath = resolver(n.source.value);
const importMap = n.importKind === 'type' ? typesImported : hasNamespace(n) ? nsImported : imported;
if (importMap.has(resolvedPath)) {
importMap.get(resolvedPath).push(n);
} else {
importMap.set(resolvedPath, [n]);
}
},
'Program:exit': function () {
checkImports(imported, context);
checkImports(nsImported, context);
checkImports(typesImported, context);
}
};
}
};
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