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65 lines
2.4 KiB
65 lines
2.4 KiB
/**
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* @fileoverview A rule to warn against using arrow functions when they could be
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* confused with comparisions
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* @author Jxck <https://github.com/Jxck>
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* @copyright 2015 Luke Karrys. All rights reserved.
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* The MIT License (MIT)
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* Copyright (c) 2015 Jxck
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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"use strict";
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//------------------------------------------------------------------------------
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// Helpers
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//------------------------------------------------------------------------------
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/**
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* Checks whether or not a node is a conditional expression.
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* @param {ASTNode} node - node to test
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* @returns {boolean} `true` if the node is a conditional expression.
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*/
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function isConditional(node) {
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return node.body && node.body.type === "ConditionalExpression";
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}
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//------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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module.exports = function(context) {
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/**
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* Reports if an arrow function contains an ambiguous conditional.
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* @param {ASTNode} node - A node to check and report.
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* @returns {void}
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*/
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function checkArrowFunc(node) {
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if (isConditional(node)) {
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context.report(node, "Arrow function used ambiguously with a conditional expression.");
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}
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}
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return {
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"ArrowFunctionExpression": checkArrowFunc
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};
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};
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module.exports.schema = [];
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