vue hello world项目
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const { ConcatSource } = require("webpack-sources");
const ExternalModule = require("../ExternalModule");
const Template = require("../Template");
const AbstractLibraryPlugin = require("./AbstractLibraryPlugin");
/** @typedef {import("webpack-sources").Source} Source */
/** @typedef {import("../../declarations/WebpackOptions").LibraryOptions} LibraryOptions */
/** @typedef {import("../../declarations/WebpackOptions").LibraryType} LibraryType */
/** @typedef {import("../Chunk")} Chunk */
/** @typedef {import("../Compilation").ChunkHashContext} ChunkHashContext */
/** @typedef {import("../Compiler")} Compiler */
/** @typedef {import("../javascript/JavascriptModulesPlugin").RenderContext} RenderContext */
/** @typedef {import("../util/Hash")} Hash */
/** @template T @typedef {import("./AbstractLibraryPlugin").LibraryContext<T>} LibraryContext<T> */
/**
* @typedef {Object} AmdLibraryPluginOptions
* @property {LibraryType} type
* @property {boolean=} requireAsWrapper
*/
/**
* @typedef {Object} AmdLibraryPluginParsed
* @property {string} name
*/
/**
* @typedef {AmdLibraryPluginParsed} T
* @extends {AbstractLibraryPlugin<AmdLibraryPluginParsed>}
*/
class AmdLibraryPlugin extends AbstractLibraryPlugin {
/**
* @param {AmdLibraryPluginOptions} options the plugin options
*/
constructor(options) {
super({
pluginName: "AmdLibraryPlugin",
type: options.type
});
this.requireAsWrapper = options.requireAsWrapper;
}
/**
* @param {LibraryOptions} library normalized library option
* @returns {T | false} preprocess as needed by overriding
*/
parseOptions(library) {
const { name } = library;
if (this.requireAsWrapper) {
if (name) {
throw new Error(
`AMD library name must be unset. ${AbstractLibraryPlugin.COMMON_LIBRARY_NAME_MESSAGE}`
);
}
} else {
if (name && typeof name !== "string") {
throw new Error(
`AMD library name must be a simple string or unset. ${AbstractLibraryPlugin.COMMON_LIBRARY_NAME_MESSAGE}`
);
}
}
return {
name: /** @type {string=} */ (name)
};
}
/**
* @param {Source} source source
* @param {RenderContext} renderContext render context
* @param {LibraryContext<T>} libraryContext context
* @returns {Source} source with library export
*/
render(
source,
{ chunkGraph, chunk, runtimeTemplate },
{ options, compilation }
) {
const modern = runtimeTemplate.supportsArrowFunction();
const modules = chunkGraph
.getChunkModules(chunk)
.filter(m => m instanceof ExternalModule);
const externals = /** @type {ExternalModule[]} */ (modules);
const externalsDepsArray = JSON.stringify(
externals.map(m =>
typeof m.request === "object" && !Array.isArray(m.request)
? m.request.amd
: m.request
)
);
const externalsArguments = externals
.map(
m =>
`__WEBPACK_EXTERNAL_MODULE_${Template.toIdentifier(
`${chunkGraph.getModuleId(m)}`
)}__`
)
.join(", ");
const iife = runtimeTemplate.isIIFE();
const fnStart =
(modern
? `(${externalsArguments}) => {`
: `function(${externalsArguments}) {`) +
(iife || !chunk.hasRuntime() ? " return " : "\n");
const fnEnd = iife ? ";\n}" : "\n}";
if (this.requireAsWrapper) {
return new ConcatSource(
`require(${externalsDepsArray}, ${fnStart}`,
source,
`${fnEnd});`
);
} else if (options.name) {
const name = compilation.getPath(options.name, {
chunk
});
return new ConcatSource(
`define(${JSON.stringify(name)}, ${externalsDepsArray}, ${fnStart}`,
source,
`${fnEnd});`
);
} else if (externalsArguments) {
return new ConcatSource(
`define(${externalsDepsArray}, ${fnStart}`,
source,
`${fnEnd});`
);
} else {
return new ConcatSource(`define(${fnStart}`, source, `${fnEnd});`);
}
}
/**
* @param {Chunk} chunk the chunk
* @param {Hash} hash hash
* @param {ChunkHashContext} chunkHashContext chunk hash context
* @param {LibraryContext<T>} libraryContext context
* @returns {void}
*/
chunkHash(chunk, hash, chunkHashContext, { options, compilation }) {
hash.update("AmdLibraryPlugin");
if (this.requireAsWrapper) {
hash.update("requireAsWrapper");
} else if (options.name) {
hash.update("named");
const name = compilation.getPath(options.name, {
chunk
});
hash.update(name);
}
}
}
module.exports = AmdLibraryPlugin;