224 lines
7.0 KiB
JavaScript
224 lines
7.0 KiB
JavaScript
/*
|
|
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 {
|
|
chunkHasJs,
|
|
getChunkFilenameTemplate
|
|
} = require("../javascript/JavascriptModulesPlugin");
|
|
const { getInitialChunkIds } = require("../javascript/StartupHelpers");
|
|
const compileBooleanMatcher = require("../util/compileBooleanMatcher");
|
|
const { getUndoPath } = require("../util/identifier");
|
|
|
|
class RequireChunkLoadingRuntimeModule extends RuntimeModule {
|
|
constructor(runtimeRequirements) {
|
|
super("require chunk loading", RuntimeModule.STAGE_ATTACH);
|
|
this.runtimeRequirements = runtimeRequirements;
|
|
}
|
|
|
|
/**
|
|
* @returns {string} runtime code
|
|
*/
|
|
generate() {
|
|
const { chunkGraph, chunk } = this;
|
|
const { runtimeTemplate } = this.compilation;
|
|
const fn = RuntimeGlobals.ensureChunkHandlers;
|
|
const withBaseURI = this.runtimeRequirements.has(RuntimeGlobals.baseURI);
|
|
const withExternalInstallChunk = this.runtimeRequirements.has(
|
|
RuntimeGlobals.externalInstallChunk
|
|
);
|
|
const withOnChunkLoad = this.runtimeRequirements.has(
|
|
RuntimeGlobals.onChunksLoaded
|
|
);
|
|
const withLoading = this.runtimeRequirements.has(
|
|
RuntimeGlobals.ensureChunkHandlers
|
|
);
|
|
const withHmr = this.runtimeRequirements.has(
|
|
RuntimeGlobals.hmrDownloadUpdateHandlers
|
|
);
|
|
const withHmrManifest = this.runtimeRequirements.has(
|
|
RuntimeGlobals.hmrDownloadManifest
|
|
);
|
|
const conditionMap = chunkGraph.getChunkConditionMap(chunk, chunkHasJs);
|
|
const hasJsMatcher = compileBooleanMatcher(conditionMap);
|
|
const initialChunkIds = getInitialChunkIds(chunk, chunkGraph, chunkHasJs);
|
|
|
|
const outputName = this.compilation.getPath(
|
|
getChunkFilenameTemplate(chunk, this.compilation.outputOptions),
|
|
{
|
|
chunk,
|
|
contentHashType: "javascript"
|
|
}
|
|
);
|
|
const rootOutputDir = getUndoPath(
|
|
outputName,
|
|
this.compilation.outputOptions.path,
|
|
true
|
|
);
|
|
|
|
const stateExpression = withHmr
|
|
? `${RuntimeGlobals.hmrRuntimeStatePrefix}_require`
|
|
: undefined;
|
|
|
|
return Template.asString([
|
|
withBaseURI
|
|
? Template.asString([
|
|
`${RuntimeGlobals.baseURI} = require("url").pathToFileURL(${
|
|
rootOutputDir !== "./"
|
|
? `__dirname + ${JSON.stringify("/" + rootOutputDir)}`
|
|
: "__filename"
|
|
});`
|
|
])
|
|
: "// no baseURI",
|
|
"",
|
|
"// object to store loaded chunks",
|
|
'// "1" means "loaded", otherwise not loaded yet',
|
|
`var installedChunks = ${
|
|
stateExpression ? `${stateExpression} = ${stateExpression} || ` : ""
|
|
}{`,
|
|
Template.indent(
|
|
Array.from(initialChunkIds, id => `${JSON.stringify(id)}: 1`).join(
|
|
",\n"
|
|
)
|
|
),
|
|
"};",
|
|
"",
|
|
withOnChunkLoad
|
|
? `${
|
|
RuntimeGlobals.onChunksLoaded
|
|
}.require = ${runtimeTemplate.returningFunction(
|
|
"installedChunks[chunkId]",
|
|
"chunkId"
|
|
)};`
|
|
: "// no on chunks loaded",
|
|
"",
|
|
withLoading || withExternalInstallChunk
|
|
? `var installChunk = ${runtimeTemplate.basicFunction("chunk", [
|
|
"var moreModules = chunk.modules, chunkIds = chunk.ids, runtime = chunk.runtime;",
|
|
"for(var moduleId in moreModules) {",
|
|
Template.indent([
|
|
`if(${RuntimeGlobals.hasOwnProperty}(moreModules, moduleId)) {`,
|
|
Template.indent([
|
|
`${RuntimeGlobals.moduleFactories}[moduleId] = moreModules[moduleId];`
|
|
]),
|
|
"}"
|
|
]),
|
|
"}",
|
|
`if(runtime) runtime(__webpack_require__);`,
|
|
"for(var i = 0; i < chunkIds.length; i++)",
|
|
Template.indent("installedChunks[chunkIds[i]] = 1;"),
|
|
withOnChunkLoad ? `${RuntimeGlobals.onChunksLoaded}();` : ""
|
|
])};`
|
|
: "// no chunk install function needed",
|
|
"",
|
|
withLoading
|
|
? Template.asString([
|
|
"// require() chunk loading for javascript",
|
|
`${fn}.require = ${runtimeTemplate.basicFunction(
|
|
"chunkId, promises",
|
|
hasJsMatcher !== false
|
|
? [
|
|
'// "1" is the signal for "already loaded"',
|
|
"if(!installedChunks[chunkId]) {",
|
|
Template.indent([
|
|
hasJsMatcher === true
|
|
? "if(true) { // all chunks have JS"
|
|
: `if(${hasJsMatcher("chunkId")}) {`,
|
|
Template.indent([
|
|
`installChunk(require(${JSON.stringify(
|
|
rootOutputDir
|
|
)} + ${
|
|
RuntimeGlobals.getChunkScriptFilename
|
|
}(chunkId)));`
|
|
]),
|
|
"} else installedChunks[chunkId] = 1;",
|
|
""
|
|
]),
|
|
"}"
|
|
]
|
|
: "installedChunks[chunkId] = 1;"
|
|
)};`
|
|
])
|
|
: "// no chunk loading",
|
|
"",
|
|
withExternalInstallChunk
|
|
? Template.asString([
|
|
"module.exports = __webpack_require__;",
|
|
`${RuntimeGlobals.externalInstallChunk} = installChunk;`
|
|
])
|
|
: "// no external install chunk",
|
|
"",
|
|
withHmr
|
|
? Template.asString([
|
|
"function loadUpdateChunk(chunkId, updatedModulesList) {",
|
|
Template.indent([
|
|
`var update = require(${JSON.stringify(rootOutputDir)} + ${
|
|
RuntimeGlobals.getChunkUpdateScriptFilename
|
|
}(chunkId));`,
|
|
"var updatedModules = update.modules;",
|
|
"var runtime = update.runtime;",
|
|
"for(var moduleId in updatedModules) {",
|
|
Template.indent([
|
|
`if(${RuntimeGlobals.hasOwnProperty}(updatedModules, moduleId)) {`,
|
|
Template.indent([
|
|
`currentUpdate[moduleId] = updatedModules[moduleId];`,
|
|
"if(updatedModulesList) updatedModulesList.push(moduleId);"
|
|
]),
|
|
"}"
|
|
]),
|
|
"}",
|
|
"if(runtime) currentUpdateRuntime.push(runtime);"
|
|
]),
|
|
"}",
|
|
"",
|
|
Template.getFunctionContent(
|
|
require("../hmr/JavascriptHotModuleReplacement.runtime.js")
|
|
)
|
|
.replace(/\$key\$/g, "require")
|
|
.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([
|
|
`${RuntimeGlobals.hmrDownloadManifest} = function() {`,
|
|
Template.indent([
|
|
"return Promise.resolve().then(function() {",
|
|
Template.indent([
|
|
`return require(${JSON.stringify(rootOutputDir)} + ${
|
|
RuntimeGlobals.getUpdateManifestFilename
|
|
}());`
|
|
]),
|
|
"})['catch'](function(err) { if(err.code !== 'MODULE_NOT_FOUND') throw err; });"
|
|
]),
|
|
"}"
|
|
])
|
|
: "// no HMR manifest"
|
|
]);
|
|
}
|
|
}
|
|
|
|
module.exports = RequireChunkLoadingRuntimeModule;
|