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- "use strict";
- module.exports = class ConditionalPlugin {
-
- constructor(source, test, message, allowAlternatives, target) {
- this.source = source;
- this.test = test;
- this.message = message;
- this.allowAlternatives = allowAlternatives;
- this.target = target;
- }
-
- apply(resolver) {
- const target = resolver.ensureHook(this.target);
- const { test, message, allowAlternatives } = this;
- const keys = (Object.keys(test));
- resolver
- .getHook(this.source)
- .tapAsync("ConditionalPlugin", (request, resolveContext, callback) => {
- for (const prop of keys) {
- if (request[prop] !== test[prop]) return callback();
- }
- resolver.doResolve(
- target,
- request,
- message,
- resolveContext,
- allowAlternatives
- ? callback
- : (err, result) => {
- if (err) return callback(err);
-
- if (result === undefined) return callback(null, null);
- callback(null, result);
- }
- );
- });
- }
- };
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