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34 lines
1 KiB
JavaScript
34 lines
1 KiB
JavaScript
/**
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* @fileoverview Marks all var declarations that are not at the top level
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* invalid.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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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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var helpers = require("../helpers");
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module.exports = function(context) {
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// ---------------------------------------------------------------------------
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// Public
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// --------------------------------------------------------------------------
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return {
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"VariableDeclaration": function(node) {
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if (node.kind === "var") {
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if (helpers.getIsGlobalScope(context.getAncestors())) {
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return;
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}
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context.report(node, "Unexpected var, use let or const instead.");
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}
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}
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};
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};
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