76 lines
1.9 KiB
JavaScript
76 lines
1.9 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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/** @typedef {import("./Resolver")} Resolver */
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/** @typedef {import("./Resolver").ResolveRequest} ResolveRequest */
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/** @typedef {import("./Resolver").ResolveStepHook} ResolveStepHook */
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const namespaceStartCharCode = "@".charCodeAt(0);
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module.exports = class JoinRequestPartPlugin {
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/**
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* @param {string | ResolveStepHook} source source
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* @param {string | ResolveStepHook} target target
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*/
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constructor(source, target) {
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this.source = source;
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this.target = target;
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}
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/**
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* @param {Resolver} resolver the resolver
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* @returns {void}
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*/
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apply(resolver) {
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const target = resolver.ensureHook(this.target);
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resolver
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.getHook(this.source)
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.tapAsync(
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"JoinRequestPartPlugin",
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(request, resolveContext, callback) => {
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const req = request.request || "";
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let i = req.indexOf("/", 3);
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if (i >= 0 && req.charCodeAt(2) === namespaceStartCharCode) {
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i = req.indexOf("/", i + 1);
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}
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/** @type {string} */
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let moduleName;
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/** @type {string} */
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let remainingRequest;
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/** @type {boolean} */
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let fullySpecified;
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if (i < 0) {
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moduleName = req;
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remainingRequest = ".";
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fullySpecified = false;
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} else {
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moduleName = req.slice(0, i);
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remainingRequest = `.${req.slice(i)}`;
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fullySpecified = /** @type {boolean} */ (request.fullySpecified);
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}
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/** @type {ResolveRequest} */
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const obj = {
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...request,
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path: resolver.join(
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/** @type {string} */
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(request.path),
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moduleName,
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),
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relativePath:
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request.relativePath &&
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resolver.join(request.relativePath, moduleName),
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request: remainingRequest,
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fullySpecified,
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};
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resolver.doResolve(target, obj, null, resolveContext, callback);
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},
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);
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}
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};
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