1 | /**
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2 | * @fileoverview Rule to flag when using multiline strings
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3 | * @author Ilya Volodin
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4 | */
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5 |
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6 | ;
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7 |
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8 | //------------------------------------------------------------------------------
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9 | // Rule Definition
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10 | //------------------------------------------------------------------------------
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11 |
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12 | module.exports = {
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13 | meta: {
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14 | docs: {
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15 | description: "disallow multiline strings",
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16 | category: "Best Practices",
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17 | recommended: false
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18 | },
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19 |
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20 | schema: []
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21 | },
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22 |
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23 | create(context) {
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24 |
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25 | /**
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26 | * Determines if a given node is part of JSX syntax.
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27 | * @param {ASTNode} node The node to check.
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28 | * @returns {boolean} True if the node is a JSX node, false if not.
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29 | * @private
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30 | */
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31 | function isJSXElement(node) {
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32 | return node.type.indexOf("JSX") === 0;
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33 | }
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34 |
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35 | //--------------------------------------------------------------------------
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36 | // Public API
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37 | //--------------------------------------------------------------------------
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38 |
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39 | return {
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40 |
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41 | Literal(node) {
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42 | const lineBreak = /\n/;
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43 |
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44 | if (lineBreak.test(node.raw) && !isJSXElement(node.parent)) {
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45 | context.report(node, "Multiline support is limited to browsers supporting ES5 only.");
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46 | }
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47 | }
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48 | };
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49 |
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50 | }
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51 | };
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