73 lines
1.3 KiB
JavaScript
73 lines
1.3 KiB
JavaScript
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'use strict';
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const {ReferenceTracker} = require('@eslint-community/eslint-utils');
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const createTraceMap = (object, type) => {
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let map = {[type]: true};
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const path = object.split('.').reverse();
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for (const name of path) {
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map = {[name]: map};
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}
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return map;
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};
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class GlobalReferenceTracker {
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#traceMap = {};
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#filter;
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#handle;
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constructor({
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object,
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objects = [object],
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filter,
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handle,
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type = ReferenceTracker.READ,
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}) {
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for (const object of objects) {
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Object.assign(this.#traceMap, createTraceMap(object, type));
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}
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this.#filter = filter;
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this.#handle = handle;
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}
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* track(globalScope) {
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const tracker = new ReferenceTracker(globalScope);
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for (const reference of tracker.iterateGlobalReferences(this.#traceMap)) {
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if (this.#filter && !this.#filter(reference)) {
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continue;
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}
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const problems = this.#handle(reference);
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if (!problems) {
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continue;
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}
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if (problems[Symbol.iterator]) {
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yield * problems;
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} else {
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yield problems;
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}
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}
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}
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createListeners(context) {
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return {
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'Program:exit': () => this.track(context.getScope()),
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};
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}
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}
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Object.assign(GlobalReferenceTracker, {
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READ: ReferenceTracker.READ,
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CALL: ReferenceTracker.CALL,
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CONSTRUCT: ReferenceTracker.CONSTRUCT,
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});
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module.exports = {
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GlobalReferenceTracker,
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};
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