63 lines
1.8 KiB
JavaScript
63 lines
1.8 KiB
JavaScript
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/**
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* @fileoverview Rule to flag use of an object property of the global object (Math and JSON) as a function
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* @author James Allardice
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*/
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"use strict";
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//------------------------------------------------------------------------------
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// Requirements
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//------------------------------------------------------------------------------
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const { CALL, ReferenceTracker } = require("eslint-utils");
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//------------------------------------------------------------------------------
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// Helpers
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//------------------------------------------------------------------------------
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const nonCallableGlobals = ["Atomics", "JSON", "Math", "Reflect"];
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//------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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module.exports = {
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meta: {
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type: "problem",
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docs: {
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description: "disallow calling global object properties as functions",
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category: "Possible Errors",
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recommended: true,
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url: "https://eslint.org/docs/rules/no-obj-calls"
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},
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schema: [],
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messages: {
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unexpectedCall: "'{{name}}' is not a function."
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}
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},
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create(context) {
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return {
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Program() {
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const scope = context.getScope();
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const tracker = new ReferenceTracker(scope);
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const traceMap = {};
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for (const global of nonCallableGlobals) {
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traceMap[global] = {
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[CALL]: true
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};
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}
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for (const { node } of tracker.iterateGlobalReferences(traceMap)) {
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context.report({ node, messageId: "unexpectedCall", data: { name: node.callee.name } });
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}
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}
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};
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}
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};
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