73 lines
2.1 KiB
JavaScript
73 lines
2.1 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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const ModuleDependency = require("./ModuleDependency");
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class HarmonyImportDependency extends ModuleDependency {
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constructor(request, importedVar, range) {
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super(request);
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this.range = range;
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this.importedVar = importedVar;
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}
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get type() {
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return "harmony import";
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}
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getReference() {
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if(!this.module) return null;
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return {
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module: this.module,
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importedNames: false
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};
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}
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updateHash(hash) {
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super.updateHash(hash);
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hash.update((this.module && (!this.module.meta || this.module.meta.harmonyModule)) + "");
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}
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}
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HarmonyImportDependency.Template = class HarmonyImportDependencyTemplate {
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apply(dep, source, outputOptions, requestShortener) {
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const content = makeImportStatement(true, dep, outputOptions, requestShortener);
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source.replace(dep.range[0], dep.range[1] - 1, "");
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source.insert(-1, content);
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}
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};
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function getOptionalComment(pathinfo, shortenedRequest) {
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if(!pathinfo) {
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return "";
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}
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return `/*! ${shortenedRequest} */ `;
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}
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function makeImportStatement(declare, dep, outputOptions, requestShortener) {
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const comment = getOptionalComment(outputOptions.pathinfo, requestShortener.shorten(dep.request));
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const declaration = declare ? "var " : "";
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const newline = declare ? "\n" : " ";
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if(!dep.module) {
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const stringifiedError = JSON.stringify(`Cannot find module "${dep.request}"`);
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return `throw new Error(${stringifiedError});${newline}`;
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}
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if(dep.importedVar) {
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const isHarmonyModule = dep.module.meta && dep.module.meta.harmonyModule;
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const content = `/* harmony import */ ${declaration}${dep.importedVar} = __webpack_require__(${comment}${JSON.stringify(dep.module.id)});${newline}`;
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if(isHarmonyModule) {
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return content;
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}
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return `${content}/* harmony import */ ${declaration}${dep.importedVar}_default = __webpack_require__.n(${dep.importedVar});${newline}`;
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}
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return "";
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}
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HarmonyImportDependency.makeImportStatement = makeImportStatement;
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module.exports = HarmonyImportDependency;
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