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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra, Zackary Jackson @ScriptedAlchemy, Marais Rossouw @maraisr
*/
"use strict";
const { OriginalSource, RawSource } = require("webpack-sources");
const AsyncDependenciesBlock = require("../AsyncDependenciesBlock");
const Module = require("../Module");
const RuntimeGlobals = require("../RuntimeGlobals");
const Template = require("../Template");
const makeSerializable = require("../util/makeSerializable");
const ContainerExposedDependency = require("./ContainerExposedDependency");
/** @typedef {import("../../declarations/WebpackOptions").WebpackOptionsNormalized} WebpackOptions */
/** @typedef {import("../ChunkGraph")} ChunkGraph */
/** @typedef {import("../ChunkGroup")} ChunkGroup */
/** @typedef {import("../Compilation")} Compilation */
/** @typedef {import("../Module").CodeGenerationContext} CodeGenerationContext */
/** @typedef {import("../Module").CodeGenerationResult} CodeGenerationResult */
/** @typedef {import("../Module").LibIdentOptions} LibIdentOptions */
/** @typedef {import("../Module").NeedBuildContext} NeedBuildContext */
/** @typedef {import("../RequestShortener")} RequestShortener */
/** @typedef {import("../ResolverFactory").ResolverWithOptions} ResolverWithOptions */
/** @typedef {import("../WebpackError")} WebpackError */
/** @typedef {import("../util/Hash")} Hash */
/** @typedef {import("../util/fs").InputFileSystem} InputFileSystem */
/** @typedef {import("./ContainerEntryDependency")} ContainerEntryDependency */
/**
* @typedef {Object} ExposeOptions
* @property {string[]} import requests to exposed modules (last one is exported)
* @property {string} name custom chunk name for the exposed module
*/
const SOURCE_TYPES = new Set(["javascript"]);
class ContainerEntryModule extends Module {
/**
* @param {string} name container entry name
* @param {[string, ExposeOptions][]} exposes list of exposed modules
* @param {string} shareScope name of the share scope
*/
constructor(name, exposes, shareScope) {
super("javascript/dynamic", null);
this._name = name;
this._exposes = exposes;
this._shareScope = shareScope;
}
/**
* @returns {Set<string>} types available (do not mutate)
*/
getSourceTypes() {
return SOURCE_TYPES;
}
/**
* @returns {string} a unique identifier of the module
*/
identifier() {
return `container entry (${this._shareScope}) ${JSON.stringify(
this._exposes
)}`;
}
/**
* @param {RequestShortener} requestShortener the request shortener
* @returns {string} a user readable identifier of the module
*/
readableIdentifier(requestShortener) {
return `container entry`;
}
/**
* @param {LibIdentOptions} options options
* @returns {string | null} an identifier for library inclusion
*/
libIdent(options) {
return `webpack/container/entry/${this._name}`;
}
/**
* @param {NeedBuildContext} context context info
* @param {function(WebpackError=, boolean=): void} callback callback function, returns true, if the module needs a rebuild
* @returns {void}
*/
needBuild(context, callback) {
return callback(null, !this.buildMeta);
}
/**
* @param {WebpackOptions} options webpack options
* @param {Compilation} compilation the compilation
* @param {ResolverWithOptions} resolver the resolver
* @param {InputFileSystem} fs the file system
* @param {function(WebpackError=): void} callback callback function
* @returns {void}
*/
build(options, compilation, resolver, fs, callback) {
this.buildMeta = {};
this.buildInfo = {
strict: true,
topLevelDeclarations: new Set(["moduleMap", "get", "init"])
};
this.clearDependenciesAndBlocks();
for (const [name, options] of this._exposes) {
const block = new AsyncDependenciesBlock(
{
name: options.name
},
{ name },
options.import[options.import.length - 1]
);
let idx = 0;
for (const request of options.import) {
const dep = new ContainerExposedDependency(name, request);
dep.loc = {
name,
index: idx++
};
block.addDependency(dep);
}
this.addBlock(block);
}
callback();
}
/**
* @param {CodeGenerationContext} context context for code generation
* @returns {CodeGenerationResult} result
*/
codeGeneration({ moduleGraph, chunkGraph, runtimeTemplate }) {
const sources = new Map();
const runtimeRequirements = new Set([
RuntimeGlobals.definePropertyGetters,
RuntimeGlobals.hasOwnProperty,
RuntimeGlobals.exports
]);
const getters = [];
for (const block of this.blocks) {
const { dependencies } = block;
const modules = dependencies.map(dependency => {
const dep = /** @type {ContainerExposedDependency} */ (dependency);
return {
name: dep.exposedName,
module: moduleGraph.getModule(dep),
request: dep.userRequest
};
});
let str;
if (modules.some(m => !m.module)) {
str = runtimeTemplate.throwMissingModuleErrorBlock({
request: modules.map(m => m.request).join(", ")
});
} else {
str = `return ${runtimeTemplate.blockPromise({
block,
message: "",
chunkGraph,
runtimeRequirements
})}.then(${runtimeTemplate.returningFunction(
runtimeTemplate.returningFunction(
`(${modules
.map(({ module, request }) =>
runtimeTemplate.moduleRaw({
module,
chunkGraph,
request,
weak: false,
runtimeRequirements
})
)
.join(", ")})`
)
)});`;
}
getters.push(
`${JSON.stringify(modules[0].name)}: ${runtimeTemplate.basicFunction(
"",
str
)}`
);
}
const source = Template.asString([
`var moduleMap = {`,
Template.indent(getters.join(",\n")),
"};",
`var get = ${runtimeTemplate.basicFunction("module, getScope", [
`${RuntimeGlobals.currentRemoteGetScope} = getScope;`,
// reusing the getScope variable to avoid creating a new var (and module is also used later)
"getScope = (",
Template.indent([
`${RuntimeGlobals.hasOwnProperty}(moduleMap, module)`,
Template.indent([
"? moduleMap[module]()",
`: Promise.resolve().then(${runtimeTemplate.basicFunction(
"",
"throw new Error('Module \"' + module + '\" does not exist in container.');"
)})`
])
]),
");",
`${RuntimeGlobals.currentRemoteGetScope} = undefined;`,
"return getScope;"
])};`,
`var init = ${runtimeTemplate.basicFunction("shareScope, initScope", [
`if (!${RuntimeGlobals.shareScopeMap}) return;`,
`var oldScope = ${RuntimeGlobals.shareScopeMap}[${JSON.stringify(
this._shareScope
)}];`,
`var name = ${JSON.stringify(this._shareScope)}`,
`if(oldScope && oldScope !== shareScope) throw new Error("Container initialization failed as it has already been initialized with a different share scope");`,
`${RuntimeGlobals.shareScopeMap}[name] = shareScope;`,
`return ${RuntimeGlobals.initializeSharing}(name, initScope);`
])};`,
"",
"// This exports getters to disallow modifications",
`${RuntimeGlobals.definePropertyGetters}(exports, {`,
Template.indent([
`get: ${runtimeTemplate.returningFunction("get")},`,
`init: ${runtimeTemplate.returningFunction("init")}`
]),
"});"
]);
sources.set(
"javascript",
this.useSourceMap || this.useSimpleSourceMap
? new OriginalSource(source, "webpack/container-entry")
: new RawSource(source)
);
return {
sources,
runtimeRequirements
};
}
/**
* @param {string=} type the source type for which the size should be estimated
* @returns {number} the estimated size of the module (must be non-zero)
*/
size(type) {
return 42;
}
serialize(context) {
const { write } = context;
write(this._name);
write(this._exposes);
write(this._shareScope);
super.serialize(context);
}
static deserialize(context) {
const { read } = context;
const obj = new ContainerEntryModule(read(), read(), read());
obj.deserialize(context);
return obj;
}
}
makeSerializable(
ContainerEntryModule,
"webpack/lib/container/ContainerEntryModule"
);
module.exports = ContainerEntryModule;