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accessor-pairs.js
11.71
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array-bracket-newline.js
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array-bracket-spacing.js
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array-callback-return.js
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array-element-newline.js
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arrow-body-style.js
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arrow-parens.js
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arrow-spacing.js
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block-scoped-var.js
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block-spacing.js
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brace-style.js
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callback-return.js
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camelcase.js
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capitalized-comments.js
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class-methods-use-this.js
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comma-dangle.js
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comma-spacing.js
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comma-style.js
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complexity.js
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computed-property-spacing.js
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consistent-return.js
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consistent-this.js
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curly.js
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default-case-last.js
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default-case.js
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default-param-last.js
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dot-location.js
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dot-notation.js
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eol-last.js
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eqeqeq.js
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for-direction.js
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func-call-spacing.js
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func-name-matching.js
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func-names.js
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func-style.js
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function-paren-newline.js
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generator-star-spacing.js
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getter-return.js
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global-require.js
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grouped-accessor-pairs.js
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guard-for-in.js
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handle-callback-err.js
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id-blacklist.js
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id-denylist.js
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id-length.js
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id-match.js
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implicit-arrow-linebreak.js
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indent-legacy.js
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indent.js
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index.js
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init-declarations.js
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jsx-quotes.js
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key-spacing.js
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keyword-spacing.js
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line-comment-position.js
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linebreak-style.js
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lines-around-comment.js
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lines-around-directive.js
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lines-between-class-members.js
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logical-assignment-operators.j...
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max-classes-per-file.js
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max-depth.js
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max-params.js
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max-statements.js
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multiline-comment-style.js
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multiline-ternary.js
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new-cap.js
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new-parens.js
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newline-before-return.js
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newline-per-chained-call.js
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no-alert.js
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no-continue.js
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no-control-regex.js
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no-debugger.js
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no-delete-var.js
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no-div-regex.js
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no-dupe-args.js
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no-dupe-class-members.js
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no-dupe-else-if.js
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no-dupe-keys.js
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no-duplicate-case.js
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no-duplicate-imports.js
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no-else-return.js
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no-empty-character-class.js
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no-empty-function.js
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no-empty-pattern.js
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no-empty-static-block.js
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no-empty.js
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no-eq-null.js
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no-eval.js
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no-ex-assign.js
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no-extend-native.js
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no-extra-bind.js
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no-extra-boolean-cast.js
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no-extra-label.js
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no-extra-parens.js
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no-extra-semi.js
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no-fallthrough.js
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no-floating-decimal.js
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no-func-assign.js
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no-global-assign.js
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no-implicit-coercion.js
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no-implicit-globals.js
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no-implied-eval.js
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no-import-assign.js
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no-inline-comments.js
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no-inner-declarations.js
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no-invalid-regexp.js
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no-invalid-this.js
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no-irregular-whitespace.js
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no-iterator.js
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no-label-var.js
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no-labels.js
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no-lone-blocks.js
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no-lonely-if.js
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no-loop-func.js
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no-loss-of-precision.js
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no-magic-numbers.js
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no-mixed-operators.js
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no-mixed-requires.js
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no-mixed-spaces-and-tabs.js
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no-multi-assign.js
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no-multi-spaces.js
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no-multi-str.js
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no-multiple-empty-lines.js
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no-native-reassign.js
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no-negated-condition.js
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no-negated-in-lhs.js
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no-nested-ternary.js
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no-new-func.js
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no-new-object.js
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no-new-require.js
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no-new-symbol.js
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no-new-wrappers.js
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no-new.js
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no-nonoctal-decimal-escape.js
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no-obj-calls.js
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no-object-constructor.js
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no-octal-escape.js
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no-octal.js
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no-param-reassign.js
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no-path-concat.js
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no-process-env.js
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no-promise-executor-return.js
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no-restricted-exports.js
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no-shadow-restricted-names.js
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no-shadow.js
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no-ternary.js
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no-useless-constructor.js
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no-useless-rename.js
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no-useless-return.js
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no-var.js
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object-curly-newline.js
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object-curly-spacing.js
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object-property-newline.js
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object-shorthand.js
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one-var.js
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operator-assignment.js
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quotes.js
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radix.js
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require-await.js
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semi.js
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strict.js
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Code Editor : no-irregular-whitespace.js
/** * @fileoverview Rule to disallow whitespace that is not a tab or space, whitespace inside strings and comments are allowed * @author Jonathan Kingston * @author Christophe Porteneuve */ "use strict"; //------------------------------------------------------------------------------ // Requirements //------------------------------------------------------------------------------ const astUtils = require("./utils/ast-utils"); //------------------------------------------------------------------------------ // Constants //------------------------------------------------------------------------------ const ALL_IRREGULARS = /[\f\v\u0085\ufeff\u00a0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u200b\u202f\u205f\u3000\u2028\u2029]/u; const IRREGULAR_WHITESPACE = /[\f\v\u0085\ufeff\u00a0\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u200b\u202f\u205f\u3000]+/mgu; const IRREGULAR_LINE_TERMINATORS = /[\u2028\u2029]/mgu; const LINE_BREAK = astUtils.createGlobalLinebreakMatcher(); //------------------------------------------------------------------------------ // Rule Definition //------------------------------------------------------------------------------ /** @type {import('../shared/types').Rule} */ module.exports = { meta: { type: "problem", docs: { description: "Disallow irregular whitespace", recommended: true, url: "https://eslint.org/docs/latest/rules/no-irregular-whitespace" }, schema: [ { type: "object", properties: { skipComments: { type: "boolean", default: false }, skipStrings: { type: "boolean", default: true }, skipTemplates: { type: "boolean", default: false }, skipRegExps: { type: "boolean", default: false }, skipJSXText: { type: "boolean", default: false } }, additionalProperties: false } ], messages: { noIrregularWhitespace: "Irregular whitespace not allowed." } }, create(context) { // Module store of errors that we have found let errors = []; // Lookup the `skipComments` option, which defaults to `false`. const options = context.options[0] || {}; const skipComments = !!options.skipComments; const skipStrings = options.skipStrings !== false; const skipRegExps = !!options.skipRegExps; const skipTemplates = !!options.skipTemplates; const skipJSXText = !!options.skipJSXText; const sourceCode = context.sourceCode; const commentNodes = sourceCode.getAllComments(); /** * Removes errors that occur inside the given node * @param {ASTNode} node to check for matching errors. * @returns {void} * @private */ function removeWhitespaceError(node) { const locStart = node.loc.start; const locEnd = node.loc.end; errors = errors.filter(({ loc: { start: errorLocStart } }) => ( errorLocStart.line < locStart.line || errorLocStart.line === locStart.line && errorLocStart.column < locStart.column || errorLocStart.line === locEnd.line && errorLocStart.column >= locEnd.column || errorLocStart.line > locEnd.line )); } /** * Checks literal nodes for errors that we are choosing to ignore and calls the relevant methods to remove the errors * @param {ASTNode} node to check for matching errors. * @returns {void} * @private */ function removeInvalidNodeErrorsInLiteral(node) { const shouldCheckStrings = skipStrings && (typeof node.value === "string"); const shouldCheckRegExps = skipRegExps && Boolean(node.regex); if (shouldCheckStrings || shouldCheckRegExps) { // If we have irregular characters remove them from the errors list if (ALL_IRREGULARS.test(node.raw)) { removeWhitespaceError(node); } } } /** * Checks template string literal nodes for errors that we are choosing to ignore and calls the relevant methods to remove the errors * @param {ASTNode} node to check for matching errors. * @returns {void} * @private */ function removeInvalidNodeErrorsInTemplateLiteral(node) { if (typeof node.value.raw === "string") { if (ALL_IRREGULARS.test(node.value.raw)) { removeWhitespaceError(node); } } } /** * Checks comment nodes for errors that we are choosing to ignore and calls the relevant methods to remove the errors * @param {ASTNode} node to check for matching errors. * @returns {void} * @private */ function removeInvalidNodeErrorsInComment(node) { if (ALL_IRREGULARS.test(node.value)) { removeWhitespaceError(node); } } /** * Checks JSX nodes for errors that we are choosing to ignore and calls the relevant methods to remove the errors * @param {ASTNode} node to check for matching errors. * @returns {void} * @private */ function removeInvalidNodeErrorsInJSXText(node) { if (ALL_IRREGULARS.test(node.raw)) { removeWhitespaceError(node); } } /** * Checks the program source for irregular whitespace * @param {ASTNode} node The program node * @returns {void} * @private */ function checkForIrregularWhitespace(node) { const sourceLines = sourceCode.lines; sourceLines.forEach((sourceLine, lineIndex) => { const lineNumber = lineIndex + 1; let match; while ((match = IRREGULAR_WHITESPACE.exec(sourceLine)) !== null) { errors.push({ node, messageId: "noIrregularWhitespace", loc: { start: { line: lineNumber, column: match.index }, end: { line: lineNumber, column: match.index + match[0].length } } }); } }); } /** * Checks the program source for irregular line terminators * @param {ASTNode} node The program node * @returns {void} * @private */ function checkForIrregularLineTerminators(node) { const source = sourceCode.getText(), sourceLines = sourceCode.lines, linebreaks = source.match(LINE_BREAK); let lastLineIndex = -1, match; while ((match = IRREGULAR_LINE_TERMINATORS.exec(source)) !== null) { const lineIndex = linebreaks.indexOf(match[0], lastLineIndex + 1) || 0; errors.push({ node, messageId: "noIrregularWhitespace", loc: { start: { line: lineIndex + 1, column: sourceLines[lineIndex].length }, end: { line: lineIndex + 2, column: 0 } } }); lastLineIndex = lineIndex; } } /** * A no-op function to act as placeholder for comment accumulation when the `skipComments` option is `false`. * @returns {void} * @private */ function noop() {} const nodes = {}; if (ALL_IRREGULARS.test(sourceCode.getText())) { nodes.Program = function(node) { /* * As we can easily fire warnings for all white space issues with * all the source its simpler to fire them here. * This means we can check all the application code without having * to worry about issues caused in the parser tokens. * When writing this code also evaluating per node was missing out * connecting tokens in some cases. * We can later filter the errors when they are found to be not an * issue in nodes we don't care about. */ checkForIrregularWhitespace(node); checkForIrregularLineTerminators(node); }; nodes.Literal = removeInvalidNodeErrorsInLiteral; nodes.TemplateElement = skipTemplates ? removeInvalidNodeErrorsInTemplateLiteral : noop; nodes.JSXText = skipJSXText ? removeInvalidNodeErrorsInJSXText : noop; nodes["Program:exit"] = function() { if (skipComments) { // First strip errors occurring in comment nodes. commentNodes.forEach(removeInvalidNodeErrorsInComment); } // If we have any errors remaining report on them errors.forEach(error => context.report(error)); }; } else { nodes.Program = noop; } return nodes; } };
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