mirror of https://github.com/jkjoy/sunpeiwen.git
69 lines
1.6 KiB
JavaScript
69 lines
1.6 KiB
JavaScript
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/*
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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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const LocalModule = require("./LocalModule");
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/** @typedef {import("../javascript/JavascriptParser").ParserState} ParserState */
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/**
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* @param {string} parent parent module
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* @param {string} mod module to resolve
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* @returns {string} resolved module
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*/
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const lookup = (parent, mod) => {
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if (mod.charAt(0) !== ".") return mod;
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var path = parent.split("/");
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var segments = mod.split("/");
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path.pop();
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for (let i = 0; i < segments.length; i++) {
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const seg = segments[i];
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if (seg === "..") {
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path.pop();
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} else if (seg !== ".") {
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path.push(seg);
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}
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}
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return path.join("/");
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};
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/**
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* @param {ParserState} state parser state
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* @param {string} name name
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* @returns {LocalModule} local module
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*/
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exports.addLocalModule = (state, name) => {
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if (!state.localModules) {
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state.localModules = [];
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}
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const m = new LocalModule(name, state.localModules.length);
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state.localModules.push(m);
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return m;
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};
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/**
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* @param {ParserState} state parser state
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* @param {string} name name
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* @param {string} [namedModule] named module
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* @returns {LocalModule | null} local module or null
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*/
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exports.getLocalModule = (state, name, namedModule) => {
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if (!state.localModules) return null;
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if (namedModule) {
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// resolve dependency name relative to the defining named module
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name = lookup(namedModule, name);
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}
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for (let i = 0; i < state.localModules.length; i++) {
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if (state.localModules[i].name === name) {
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return state.localModules[i];
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}
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}
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return null;
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};
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