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45 lines
1.2 KiB
JavaScript
45 lines
1.2 KiB
JavaScript
/**
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* @fileoverview Rule to enforce default clauses in switch statements to be last
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* @author Milos Djermanovic
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*/
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"use strict";
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//------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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/** @type {import('../shared/types').Rule} */
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module.exports = {
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meta: {
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type: "suggestion",
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docs: {
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description: "Enforce default clauses in switch statements to be last",
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recommended: false,
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url: "https://eslint.org/docs/latest/rules/default-case-last"
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},
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schema: [],
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messages: {
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notLast: "Default clause should be the last clause."
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}
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},
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create(context) {
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return {
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SwitchStatement(node) {
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const cases = node.cases,
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indexOfDefault = cases.findIndex(c => c.test === null);
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if (indexOfDefault !== -1 && indexOfDefault !== cases.length - 1) {
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const defaultClause = cases[indexOfDefault];
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context.report({ node: defaultClause, messageId: "notLast" });
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}
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}
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};
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}
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};
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