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monjack
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const RuntimeGlobals = require("../RuntimeGlobals");
const StartupChunkDependenciesPlugin = require("../runtime/StartupChunkDependenciesPlugin");
const ImportScriptsChunkLoadingRuntimeModule = require("./ImportScriptsChunkLoadingRuntimeModule");
/** @typedef {import("../Chunk")} Chunk */
/** @typedef {import("../Compiler")} Compiler */
const PLUGIN_NAME = "ImportScriptsChunkLoadingPlugin";
class ImportScriptsChunkLoadingPlugin {
/**
* Apply the plugin
* @param {Compiler} compiler the compiler instance
* @returns {void}
*/
apply(compiler) {
new StartupChunkDependenciesPlugin({
chunkLoading: "import-scripts",
asyncChunkLoading: true
}).apply(compiler);
compiler.hooks.thisCompilation.tap(PLUGIN_NAME, compilation => {
const globalChunkLoading = compilation.outputOptions.chunkLoading;
/**
* @param {Chunk} chunk chunk
* @returns {boolean} true, if wasm loading is enabled for the chunk
*/
const isEnabledForChunk = chunk => {
const options = chunk.getEntryOptions();
const chunkLoading =
options && options.chunkLoading !== undefined
? options.chunkLoading
: globalChunkLoading;
return chunkLoading === "import-scripts";
};
const onceForChunkSet = new WeakSet();
/**
* @param {Chunk} chunk chunk
* @param {Set<string>} set runtime requirements
*/
const handler = (chunk, set) => {
if (onceForChunkSet.has(chunk)) return;
onceForChunkSet.add(chunk);
if (!isEnabledForChunk(chunk)) return;
const withCreateScriptUrl = Boolean(
compilation.outputOptions.trustedTypes
);
set.add(RuntimeGlobals.moduleFactoriesAddOnly);
set.add(RuntimeGlobals.hasOwnProperty);
if (withCreateScriptUrl) {
set.add(RuntimeGlobals.createScriptUrl);
}
compilation.addRuntimeModule(
chunk,
new ImportScriptsChunkLoadingRuntimeModule(set, withCreateScriptUrl)
);
};
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.ensureChunkHandlers)
.tap(PLUGIN_NAME, handler);
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.hmrDownloadUpdateHandlers)
.tap(PLUGIN_NAME, handler);
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.hmrDownloadManifest)
.tap(PLUGIN_NAME, handler);
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.baseURI)
.tap(PLUGIN_NAME, handler);
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.onChunksLoaded)
.tap(PLUGIN_NAME, handler);
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.ensureChunkHandlers)
.tap(PLUGIN_NAME, (chunk, set) => {
if (!isEnabledForChunk(chunk)) return;
set.add(RuntimeGlobals.publicPath);
set.add(RuntimeGlobals.getChunkScriptFilename);
});
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.hmrDownloadUpdateHandlers)
.tap(PLUGIN_NAME, (chunk, set) => {
if (!isEnabledForChunk(chunk)) return;
set.add(RuntimeGlobals.publicPath);
set.add(RuntimeGlobals.getChunkUpdateScriptFilename);
set.add(RuntimeGlobals.moduleCache);
set.add(RuntimeGlobals.hmrModuleData);
set.add(RuntimeGlobals.moduleFactoriesAddOnly);
});
compilation.hooks.runtimeRequirementInTree
.for(RuntimeGlobals.hmrDownloadManifest)
.tap(PLUGIN_NAME, (chunk, set) => {
if (!isEnabledForChunk(chunk)) return;
set.add(RuntimeGlobals.publicPath);
set.add(RuntimeGlobals.getUpdateManifestFilename);
});
});
}
}
module.exports = ImportScriptsChunkLoadingPlugin;

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/*
MIT License http://www.opensource.org/licenses/mit-license.php
*/
"use strict";
const RuntimeGlobals = require("../RuntimeGlobals");
const RuntimeModule = require("../RuntimeModule");
const Template = require("../Template");
const {
getChunkFilenameTemplate,
chunkHasJs
} = require("../javascript/JavascriptModulesPlugin");
const { getInitialChunkIds } = require("../javascript/StartupHelpers");
const compileBooleanMatcher = require("../util/compileBooleanMatcher");
const { getUndoPath } = require("../util/identifier");
/** @typedef {import("../Chunk")} Chunk */
/** @typedef {import("../ChunkGraph")} ChunkGraph */
/** @typedef {import("../Compilation")} Compilation */
/** @typedef {import("../Module").ReadOnlyRuntimeRequirements} ReadOnlyRuntimeRequirements */
class ImportScriptsChunkLoadingRuntimeModule extends RuntimeModule {
/**
* @param {ReadOnlyRuntimeRequirements} runtimeRequirements runtime requirements
* @param {boolean} withCreateScriptUrl with createScriptUrl support
*/
constructor(runtimeRequirements, withCreateScriptUrl) {
super("importScripts chunk loading", RuntimeModule.STAGE_ATTACH);
this.runtimeRequirements = runtimeRequirements;
this._withCreateScriptUrl = withCreateScriptUrl;
}
/**
* @private
* @param {Chunk} chunk chunk
* @returns {string} generated code
*/
_generateBaseUri(chunk) {
const options = chunk.getEntryOptions();
if (options && options.baseUri) {
return `${RuntimeGlobals.baseURI} = ${JSON.stringify(options.baseUri)};`;
}
const compilation = /** @type {Compilation} */ (this.compilation);
const outputName = compilation.getPath(
getChunkFilenameTemplate(chunk, compilation.outputOptions),
{
chunk,
contentHashType: "javascript"
}
);
const rootOutputDir = getUndoPath(
outputName,
/** @type {string} */ (compilation.outputOptions.path),
false
);
return `${RuntimeGlobals.baseURI} = self.location + ${JSON.stringify(
rootOutputDir ? `/../${rootOutputDir}` : ""
)};`;
}
/**
* @returns {string | null} runtime code
*/
generate() {
const compilation = /** @type {Compilation} */ (this.compilation);
const fn = RuntimeGlobals.ensureChunkHandlers;
const withBaseURI = this.runtimeRequirements.has(RuntimeGlobals.baseURI);
const withLoading = this.runtimeRequirements.has(
RuntimeGlobals.ensureChunkHandlers
);
const withCallback = this.runtimeRequirements.has(
RuntimeGlobals.chunkCallback
);
const withHmr = this.runtimeRequirements.has(
RuntimeGlobals.hmrDownloadUpdateHandlers
);
const withHmrManifest = this.runtimeRequirements.has(
RuntimeGlobals.hmrDownloadManifest
);
const globalObject = compilation.runtimeTemplate.globalObject;
const chunkLoadingGlobalExpr = `${globalObject}[${JSON.stringify(
compilation.outputOptions.chunkLoadingGlobal
)}]`;
const chunkGraph = /** @type {ChunkGraph} */ (this.chunkGraph);
const chunk = /** @type {Chunk} */ (this.chunk);
const hasJsMatcher = compileBooleanMatcher(
chunkGraph.getChunkConditionMap(chunk, chunkHasJs)
);
const initialChunkIds = getInitialChunkIds(chunk, chunkGraph, chunkHasJs);
const stateExpression = withHmr
? `${RuntimeGlobals.hmrRuntimeStatePrefix}_importScripts`
: undefined;
const runtimeTemplate = compilation.runtimeTemplate;
const { _withCreateScriptUrl: withCreateScriptUrl } = this;
return Template.asString([
withBaseURI ? this._generateBaseUri(chunk) : "// no baseURI",
"",
"// object to store loaded chunks",
'// "1" means "already loaded"',
`var installedChunks = ${
stateExpression ? `${stateExpression} = ${stateExpression} || ` : ""
}{`,
Template.indent(
Array.from(initialChunkIds, id => `${JSON.stringify(id)}: 1`).join(
",\n"
)
),
"};",
"",
withCallback || withLoading
? Template.asString([
"// importScripts chunk loading",
`var installChunk = ${runtimeTemplate.basicFunction("data", [
runtimeTemplate.destructureArray(
["chunkIds", "moreModules", "runtime"],
"data"
),
"for(var moduleId in moreModules) {",
Template.indent([
`if(${RuntimeGlobals.hasOwnProperty}(moreModules, moduleId)) {`,
Template.indent(
`${RuntimeGlobals.moduleFactories}[moduleId] = moreModules[moduleId];`
),
"}"
]),
"}",
`if(runtime) runtime(${RuntimeGlobals.require});`,
"while(chunkIds.length)",
Template.indent("installedChunks[chunkIds.pop()] = 1;"),
"parentChunkLoadingFunction(data);"
])};`
])
: "// no chunk install function needed",
withCallback || withLoading
? Template.asString([
withLoading
? `${fn}.i = ${runtimeTemplate.basicFunction(
"chunkId, promises",
hasJsMatcher !== false
? [
'// "1" is the signal for "already loaded"',
"if(!installedChunks[chunkId]) {",
Template.indent([
hasJsMatcher === true
? "if(true) { // all chunks have JS"
: `if(${hasJsMatcher("chunkId")}) {`,
Template.indent(
`importScripts(${
withCreateScriptUrl
? `${RuntimeGlobals.createScriptUrl}(${RuntimeGlobals.publicPath} + ${RuntimeGlobals.getChunkScriptFilename}(chunkId))`
: `${RuntimeGlobals.publicPath} + ${RuntimeGlobals.getChunkScriptFilename}(chunkId)`
});`
),
"}"
]),
"}"
]
: "installedChunks[chunkId] = 1;"
)};`
: "",
"",
`var chunkLoadingGlobal = ${chunkLoadingGlobalExpr} = ${chunkLoadingGlobalExpr} || [];`,
"var parentChunkLoadingFunction = chunkLoadingGlobal.push.bind(chunkLoadingGlobal);",
"chunkLoadingGlobal.push = installChunk;"
])
: "// no chunk loading",
"",
withHmr
? Template.asString([
"function loadUpdateChunk(chunkId, updatedModulesList) {",
Template.indent([
"var success = false;",
`${globalObject}[${JSON.stringify(
compilation.outputOptions.hotUpdateGlobal
)}] = ${runtimeTemplate.basicFunction("_, moreModules, runtime", [
"for(var moduleId in moreModules) {",
Template.indent([
`if(${RuntimeGlobals.hasOwnProperty}(moreModules, moduleId)) {`,
Template.indent([
"currentUpdate[moduleId] = moreModules[moduleId];",
"if(updatedModulesList) updatedModulesList.push(moduleId);"
]),
"}"
]),
"}",
"if(runtime) currentUpdateRuntime.push(runtime);",
"success = true;"
])};`,
"// start update chunk loading",
`importScripts(${
withCreateScriptUrl
? `${RuntimeGlobals.createScriptUrl}(${RuntimeGlobals.publicPath} + ${RuntimeGlobals.getChunkUpdateScriptFilename}(chunkId))`
: `${RuntimeGlobals.publicPath} + ${RuntimeGlobals.getChunkUpdateScriptFilename}(chunkId)`
});`,
'if(!success) throw new Error("Loading update chunk failed for unknown reason");'
]),
"}",
"",
Template.getFunctionContent(
require("../hmr/JavascriptHotModuleReplacement.runtime.js")
)
.replace(/\$key\$/g, "importScripts")
.replace(/\$installedChunks\$/g, "installedChunks")
.replace(/\$loadUpdateChunk\$/g, "loadUpdateChunk")
.replace(/\$moduleCache\$/g, RuntimeGlobals.moduleCache)
.replace(/\$moduleFactories\$/g, RuntimeGlobals.moduleFactories)
.replace(
/\$ensureChunkHandlers\$/g,
RuntimeGlobals.ensureChunkHandlers
)
.replace(/\$hasOwnProperty\$/g, RuntimeGlobals.hasOwnProperty)
.replace(/\$hmrModuleData\$/g, RuntimeGlobals.hmrModuleData)
.replace(
/\$hmrDownloadUpdateHandlers\$/g,
RuntimeGlobals.hmrDownloadUpdateHandlers
)
.replace(
/\$hmrInvalidateModuleHandlers\$/g,
RuntimeGlobals.hmrInvalidateModuleHandlers
)
])
: "// no HMR",
"",
withHmrManifest
? Template.asString([
`${
RuntimeGlobals.hmrDownloadManifest
} = ${runtimeTemplate.basicFunction("", [
'if (typeof fetch === "undefined") throw new Error("No browser support: need fetch API");',
`return fetch(${RuntimeGlobals.publicPath} + ${
RuntimeGlobals.getUpdateManifestFilename
}()).then(${runtimeTemplate.basicFunction("response", [
"if(response.status === 404) return; // no update available",
'if(!response.ok) throw new Error("Failed to fetch update manifest " + response.statusText);',
"return response.json();"
])});`
])};`
])
: "// no HMR manifest"
]);
}
}
module.exports = ImportScriptsChunkLoadingRuntimeModule;

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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const ArrayPushCallbackChunkFormatPlugin = require("../javascript/ArrayPushCallbackChunkFormatPlugin");
const EnableChunkLoadingPlugin = require("../javascript/EnableChunkLoadingPlugin");
/** @typedef {import("../Compiler")} Compiler */
class WebWorkerTemplatePlugin {
/**
* Apply the plugin
* @param {Compiler} compiler the compiler instance
* @returns {void}
*/
apply(compiler) {
compiler.options.output.chunkLoading = "import-scripts";
new ArrayPushCallbackChunkFormatPlugin().apply(compiler);
new EnableChunkLoadingPlugin("import-scripts").apply(compiler);
}
}
module.exports = WebWorkerTemplatePlugin;