diff options
Diffstat (limited to 'node_modules/webpack/lib/runtime/LoadScriptRuntimeModule.js')
| -rw-r--r-- | node_modules/webpack/lib/runtime/LoadScriptRuntimeModule.js | 174 |
1 files changed, 0 insertions, 174 deletions
diff --git a/node_modules/webpack/lib/runtime/LoadScriptRuntimeModule.js b/node_modules/webpack/lib/runtime/LoadScriptRuntimeModule.js deleted file mode 100644 index b6b2f3e3..00000000 --- a/node_modules/webpack/lib/runtime/LoadScriptRuntimeModule.js +++ /dev/null @@ -1,174 +0,0 @@ -/* - MIT License http://www.opensource.org/licenses/mit-license.php -*/ - -"use strict"; - -const { SyncWaterfallHook } = require("tapable"); -const Compilation = require("../Compilation"); -const RuntimeGlobals = require("../RuntimeGlobals"); -const Template = require("../Template"); -const HelperRuntimeModule = require("./HelperRuntimeModule"); - -/** @typedef {import("../Chunk")} Chunk */ -/** @typedef {import("../Compiler")} Compiler */ - -/** - * @typedef {object} LoadScriptCompilationHooks - * @property {SyncWaterfallHook<[string, Chunk]>} createScript - */ - -/** @type {WeakMap<Compilation, LoadScriptCompilationHooks>} */ -const compilationHooksMap = new WeakMap(); - -class LoadScriptRuntimeModule extends HelperRuntimeModule { - /** - * @param {Compilation} compilation the compilation - * @returns {LoadScriptCompilationHooks} hooks - */ - static getCompilationHooks(compilation) { - if (!(compilation instanceof Compilation)) { - throw new TypeError( - "The 'compilation' argument must be an instance of Compilation" - ); - } - let hooks = compilationHooksMap.get(compilation); - if (hooks === undefined) { - hooks = { - createScript: new SyncWaterfallHook(["source", "chunk"]) - }; - compilationHooksMap.set(compilation, hooks); - } - return hooks; - } - - /** - * @param {boolean=} withCreateScriptUrl use create script url for trusted types - * @param {boolean=} withFetchPriority use `fetchPriority` attribute - */ - constructor(withCreateScriptUrl, withFetchPriority) { - super("load script"); - this._withCreateScriptUrl = withCreateScriptUrl; - this._withFetchPriority = withFetchPriority; - } - - /** - * @returns {string | null} runtime code - */ - generate() { - const compilation = /** @type {Compilation} */ (this.compilation); - const { runtimeTemplate, outputOptions } = compilation; - const { - scriptType, - chunkLoadTimeout: loadTimeout, - crossOriginLoading, - uniqueName, - charset - } = outputOptions; - const fn = RuntimeGlobals.loadScript; - - const { createScript } = - LoadScriptRuntimeModule.getCompilationHooks(compilation); - - const code = Template.asString([ - "script = document.createElement('script');", - scriptType ? `script.type = ${JSON.stringify(scriptType)};` : "", - charset ? "script.charset = 'utf-8';" : "", - `script.timeout = ${/** @type {number} */ (loadTimeout) / 1000};`, - `if (${RuntimeGlobals.scriptNonce}) {`, - Template.indent( - `script.setAttribute("nonce", ${RuntimeGlobals.scriptNonce});` - ), - "}", - uniqueName - ? 'script.setAttribute("data-webpack", dataWebpackPrefix + key);' - : "", - this._withFetchPriority - ? Template.asString([ - "if(fetchPriority) {", - Template.indent( - 'script.setAttribute("fetchpriority", fetchPriority);' - ), - "}" - ]) - : "", - `script.src = ${ - this._withCreateScriptUrl - ? `${RuntimeGlobals.createScriptUrl}(url)` - : "url" - };`, - crossOriginLoading - ? crossOriginLoading === "use-credentials" - ? 'script.crossOrigin = "use-credentials";' - : Template.asString([ - "if (script.src.indexOf(window.location.origin + '/') !== 0) {", - Template.indent( - `script.crossOrigin = ${JSON.stringify(crossOriginLoading)};` - ), - "}" - ]) - : "" - ]); - - return Template.asString([ - "var inProgress = {};", - uniqueName - ? `var dataWebpackPrefix = ${JSON.stringify(`${uniqueName}:`)};` - : "// data-webpack is not used as build has no uniqueName", - "// loadScript function to load a script via script tag", - `${fn} = ${runtimeTemplate.basicFunction( - `url, done, key, chunkId${ - this._withFetchPriority ? ", fetchPriority" : "" - }`, - [ - "if(inProgress[url]) { inProgress[url].push(done); return; }", - "var script, needAttach;", - "if(key !== undefined) {", - Template.indent([ - 'var scripts = document.getElementsByTagName("script");', - "for(var i = 0; i < scripts.length; i++) {", - Template.indent([ - "var s = scripts[i];", - `if(s.getAttribute("src") == url${ - uniqueName - ? ' || s.getAttribute("data-webpack") == dataWebpackPrefix + key' - : "" - }) { script = s; break; }` - ]), - "}" - ]), - "}", - "if(!script) {", - Template.indent([ - "needAttach = true;", - createScript.call(code, /** @type {Chunk} */ (this.chunk)) - ]), - "}", - "inProgress[url] = [done];", - `var onScriptComplete = ${runtimeTemplate.basicFunction( - "prev, event", - Template.asString([ - "// avoid mem leaks in IE.", - "script.onerror = script.onload = null;", - "clearTimeout(timeout);", - "var doneFns = inProgress[url];", - "delete inProgress[url];", - "script.parentNode && script.parentNode.removeChild(script);", - `doneFns && doneFns.forEach(${runtimeTemplate.returningFunction( - "fn(event)", - "fn" - )});`, - "if(prev) return prev(event);" - ]) - )}`, - `var timeout = setTimeout(onScriptComplete.bind(null, undefined, { type: 'timeout', target: script }), ${loadTimeout});`, - "script.onerror = onScriptComplete.bind(null, script.onerror);", - "script.onload = onScriptComplete.bind(null, script.onload);", - "needAttach && document.head.appendChild(script);" - ] - )};` - ]); - } -} - -module.exports = LoadScriptRuntimeModule; |