1 | /**
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2 | * @fileoverview Rule to flag nested ternary expressions
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3 | * @author Ian Christian Myers
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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 nested ternary expressions",
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16 | category: "Stylistic Issues",
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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 | return {
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26 | ConditionalExpression(node) {
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27 | if (node.alternate.type === "ConditionalExpression" ||
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28 | node.consequent.type === "ConditionalExpression") {
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29 | context.report({ node, message: "Do not nest ternary expressions." });
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30 | }
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31 | }
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32 | };
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33 | }
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34 | };
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