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