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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
/** @typedef {import("./Resolver")} Resolver */
/** @typedef {import("./Resolver").ResolveRequest} ResolveRequest */
/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
module.exports = class ParsePlugin {
/**
* @param {string | ResolveStepHook} source source
* @param {Partial<ResolveRequest>} requestOptions request options
* @param {string | ResolveStepHook} target target
*/
constructor(source, requestOptions, target) {
this.source = source;
this.requestOptions = requestOptions;
this.target = target;
}
/**
* @param {Resolver} resolver the resolver
* @returns {void}
*/
apply(resolver) {
const target = resolver.ensureHook(this.target);
resolver
.getHook(this.source)
.tapAsync("ParsePlugin", (request, resolveContext, callback) => {
const parsed = resolver.parse(/** @type {string} */ (request.request));
/** @type {ResolveRequest} */
const obj = { ...request, ...parsed, ...this.requestOptions };
if (request.query && !parsed.query) {
obj.query = request.query;
}
if (request.fragment && !parsed.fragment) {
obj.fragment = request.fragment;
}
if (parsed && resolveContext.log) {
if (parsed.module) resolveContext.log("Parsed request is a module");
if (parsed.directory) {
resolveContext.log("Parsed request is a directory");
}
}
// There is an edge-case where a request with # can be a path or a fragment -> try both
if (obj.request && !obj.query && obj.fragment) {
const directory = obj.fragment.endsWith("/");
/** @type {ResolveRequest} */
const alternative = {
...obj,
directory,
request:
obj.request +
(obj.directory ? "/" : "") +
(directory ? obj.fragment.slice(0, -1) : obj.fragment),
fragment: "",
};
resolver.doResolve(
target,
alternative,
null,
resolveContext,
(err, result) => {
if (err) return callback(err);
if (result) return callback(null, result);
resolver.doResolve(target, obj, null, resolveContext, callback);
},
);
return;
}
resolver.doResolve(target, obj, null, resolveContext, callback);
});
}
};
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