64 lines
1.7 KiB
JavaScript
64 lines
1.7 KiB
JavaScript
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/**
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* @author Toru Nagashima
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* See LICENSE file in root directory for full license.
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*/
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"use strict"
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const { ReferenceTracker } = require("eslint-utils")
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/**
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* Verifier for `prefer-global/*` rules.
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*/
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class Verifier {
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/**
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* Initialize this instance.
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* @param {RuleContext} context The rule context to report.
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* @param {{modules:object,globals:object}} trackMap The track map.
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*/
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constructor(context, trackMap) {
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this.context = context
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this.trackMap = trackMap
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this.verify =
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context.options[0] === "never"
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? this.verifyToPreferModules
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: this.verifyToPreferGlobals
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}
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/**
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* Verify the code to suggest the use of globals.
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* @returns {void}
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*/
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verifyToPreferGlobals() {
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const { context, trackMap } = this
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const tracker = new ReferenceTracker(context.getScope(), {
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mode: "legacy",
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})
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for (const { node } of [
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...tracker.iterateCjsReferences(trackMap.modules),
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...tracker.iterateEsmReferences(trackMap.modules),
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]) {
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context.report({ node, messageId: "preferGlobal" })
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}
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}
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/**
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* Verify the code to suggest the use of modules.
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* @returns {void}
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*/
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verifyToPreferModules() {
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const { context, trackMap } = this
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const tracker = new ReferenceTracker(context.getScope())
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for (const { node } of tracker.iterateGlobalReferences(
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trackMap.globals
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)) {
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context.report({ node, messageId: "preferModule" })
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}
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}
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}
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module.exports = function checkForPreferGlobal(context, trackMap) {
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new Verifier(context, trackMap).verify()
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}
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