mirror of https://github.com/webpack/webpack.git
72 lines
2.4 KiB
JavaScript
72 lines
2.4 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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var SetVarMainTemplatePlugin = require("./SetVarMainTemplatePlugin");
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function accessorToObjectAccess(accessor) {
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return accessor.map(function(a) {
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return "[" + JSON.stringify(a) + "]";
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}).join("");
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}
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function accessorAccess(base, accessor, joinWith) {
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accessor = [].concat(accessor);
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return accessor.map(function(a, idx) {
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a = base ? base + accessorToObjectAccess(accessor.slice(0, idx+1)) : 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") return a + " = typeof " + a + " === \"object\" ? " + a + " : {}";
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return a + " = " + a + " || {}";
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}).join(joinWith || "; ");
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}
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function LibraryTemplatePlugin(name, target) {
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this.name = name;
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this.target = target;
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}
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module.exports = LibraryTemplatePlugin;
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LibraryTemplatePlugin.prototype.apply = function(compiler) {
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compiler.plugin("this-compilation", function(compilation) {
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switch(this.target) {
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case "var":
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compilation.apply(new SetVarMainTemplatePlugin("var " + accessorAccess(false, this.name)));
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break;
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case "assign":
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compilation.apply(new SetVarMainTemplatePlugin(accessorAccess(undefined, this.name)));
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break;
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case "this":
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case "window":
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case "global":
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if(this.name)
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compilation.apply(new SetVarMainTemplatePlugin(accessorAccess(this.target, this.name)));
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else
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compilation.apply(new SetVarMainTemplatePlugin(this.target, true));
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break;
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case "commonjs":
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if(this.name)
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compilation.apply(new SetVarMainTemplatePlugin(accessorAccess("exports", this.name)));
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else
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compilation.apply(new SetVarMainTemplatePlugin("exports", true));
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break;
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case "commonjs2":
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compilation.apply(new SetVarMainTemplatePlugin("module.exports"));
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break;
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case "amd":
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var AmdMainTemplatePlugin = require("./AmdMainTemplatePlugin");
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compilation.apply(new AmdMainTemplatePlugin(this.name));
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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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compilation.apply(new UmdMainTemplatePlugin(this.name, this.target === "umd2"));
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break;
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case "jsonp":
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var JsonpExportMainTemplatePlugin = require("./JsonpExportMainTemplatePlugin");
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compilation.apply(new JsonpExportMainTemplatePlugin(this.name));
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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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}.bind(this));
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};
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