mirror of https://github.com/webpack/webpack.git
120 lines
3.5 KiB
JavaScript
120 lines
3.5 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 SetVarMainTemplatePlugin = require("./SetVarMainTemplatePlugin");
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const accessorToObjectAccess = accessor => {
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return accessor
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.map(a => {
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return `[${JSON.stringify(a)}]`;
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})
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.join("");
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};
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const accessorAccess = (base, accessor, joinWith) => {
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accessor = [].concat(accessor);
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return accessor
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.map((a, idx) => {
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a = base
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? base + accessorToObjectAccess(accessor.slice(0, idx + 1))
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: accessor[0] + accessorToObjectAccess(accessor.slice(1, idx + 1));
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if (idx === accessor.length - 1) return a;
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if (idx === 0 && typeof base === "undefined")
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return `${a} = typeof ${a} === "object" ? ${a} : {}`;
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return `${a} = ${a} || {}`;
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})
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.join(joinWith || "; ");
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};
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class LibraryTemplatePlugin {
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constructor(name, target, umdNamedDefine, auxiliaryComment, exportProperty) {
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this.name = name;
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this.target = target;
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this.umdNamedDefine = umdNamedDefine;
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this.auxiliaryComment = auxiliaryComment;
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this.exportProperty = exportProperty;
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}
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apply(compiler) {
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compiler.hooks.thisCompilation.tap("LibraryTemplatePlugin", compilation => {
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if (this.exportProperty) {
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var ExportPropertyMainTemplatePlugin = require("./ExportPropertyMainTemplatePlugin");
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new ExportPropertyMainTemplatePlugin(this.exportProperty).apply(
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compilation
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);
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}
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switch (this.target) {
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case "var":
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new SetVarMainTemplatePlugin(
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`var ${accessorAccess(false, this.name)}`
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).apply(compilation);
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break;
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case "assign":
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new SetVarMainTemplatePlugin(
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accessorAccess(undefined, this.name)
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).apply(compilation);
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break;
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case "this":
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case "self":
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case "window":
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if (this.name)
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new SetVarMainTemplatePlugin(
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accessorAccess(this.target, this.name)
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).apply(compilation);
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else
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new SetVarMainTemplatePlugin(this.target, true).apply(compilation);
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break;
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case "global":
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if (this.name)
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new SetVarMainTemplatePlugin(
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accessorAccess(
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compilation.runtimeTemplate.outputOptions.globalObject,
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this.name
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)
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).apply(compilation);
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else
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new SetVarMainTemplatePlugin(
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compilation.runtimeTemplate.outputOptions.globalObject,
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true
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).apply(compilation);
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break;
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case "commonjs":
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if (this.name)
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new SetVarMainTemplatePlugin(
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accessorAccess("exports", this.name)
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).apply(compilation);
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else new SetVarMainTemplatePlugin("exports", true).apply(compilation);
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break;
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case "commonjs2":
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case "commonjs-module":
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new SetVarMainTemplatePlugin("module.exports").apply(compilation);
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break;
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case "amd":
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var AmdMainTemplatePlugin = require("./AmdMainTemplatePlugin");
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new AmdMainTemplatePlugin(this.name).apply(compilation);
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break;
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case "umd":
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case "umd2":
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var UmdMainTemplatePlugin = require("./UmdMainTemplatePlugin");
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new UmdMainTemplatePlugin(this.name, {
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optionalAmdExternalAsGlobal: this.target === "umd2",
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namedDefine: this.umdNamedDefine,
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auxiliaryComment: this.auxiliaryComment
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}).apply(compilation);
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break;
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case "jsonp":
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var JsonpExportMainTemplatePlugin = require("./web/JsonpExportMainTemplatePlugin");
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new JsonpExportMainTemplatePlugin(this.name).apply(compilation);
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break;
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default:
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throw new Error(`${this.target} is not a valid Library target`);
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}
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});
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}
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}
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module.exports = LibraryTemplatePlugin;
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