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43 lines
983 B
JavaScript
43 lines
983 B
JavaScript
/**
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* @fileoverview Rule to flag when deleting variables
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* @author Ilya Volodin
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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: "Disallow deleting variables",
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recommended: true,
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url: "https://eslint.org/docs/latest/rules/no-delete-var"
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},
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schema: [],
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messages: {
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unexpected: "Variables should not be deleted."
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}
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},
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create(context) {
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return {
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UnaryExpression(node) {
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if (node.operator === "delete" && node.argument.type === "Identifier") {
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context.report({ node, messageId: "unexpected" });
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}
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}
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};
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}
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};
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