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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
tree55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/webpack/lib/ExternalModule.js
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Diffstat (limited to 'node_modules/webpack/lib/ExternalModule.js')
-rw-r--r--node_modules/webpack/lib/ExternalModule.js179
1 files changed, 179 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/ExternalModule.js b/node_modules/webpack/lib/ExternalModule.js
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+++ b/node_modules/webpack/lib/ExternalModule.js
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+/*
+ MIT License http://www.opensource.org/licenses/mit-license.php
+ Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const { OriginalSource, RawSource } = require("webpack-sources");
+const Module = require("./Module");
+const WebpackMissingModule = require("./dependencies/WebpackMissingModule");
+const Template = require("./Template");
+
+/** @typedef {import("./util/createHash").Hash} Hash */
+
+class ExternalModule extends Module {
+ constructor(request, type, userRequest) {
+ super("javascript/dynamic", null);
+
+ // Info from Factory
+ this.request = request;
+ this.externalType = type;
+ this.userRequest = userRequest;
+ this.external = true;
+ }
+
+ libIdent() {
+ return this.userRequest;
+ }
+
+ chunkCondition(chunk) {
+ return chunk.hasEntryModule();
+ }
+
+ identifier() {
+ return "external " + JSON.stringify(this.request);
+ }
+
+ readableIdentifier() {
+ return "external " + JSON.stringify(this.request);
+ }
+
+ needRebuild() {
+ return false;
+ }
+
+ build(options, compilation, resolver, fs, callback) {
+ this.built = true;
+ this.buildMeta = {};
+ this.buildInfo = {};
+ callback();
+ }
+
+ getSourceForGlobalVariableExternal(variableName, type) {
+ if (!Array.isArray(variableName)) {
+ // make it an array as the look up works the same basically
+ variableName = [variableName];
+ }
+
+ // needed for e.g. window["some"]["thing"]
+ const objectLookup = variableName
+ .map(r => `[${JSON.stringify(r)}]`)
+ .join("");
+ return `(function() { module.exports = ${type}${objectLookup}; }());`;
+ }
+
+ getSourceForCommonJsExternal(moduleAndSpecifiers) {
+ if (!Array.isArray(moduleAndSpecifiers)) {
+ return `module.exports = require(${JSON.stringify(
+ moduleAndSpecifiers
+ )});`;
+ }
+
+ const moduleName = moduleAndSpecifiers[0];
+ const objectLookup = moduleAndSpecifiers
+ .slice(1)
+ .map(r => `[${JSON.stringify(r)}]`)
+ .join("");
+ return `module.exports = require(${JSON.stringify(
+ moduleName
+ )})${objectLookup};`;
+ }
+
+ checkExternalVariable(variableToCheck, request) {
+ return `if(typeof ${variableToCheck} === 'undefined') {${WebpackMissingModule.moduleCode(
+ request
+ )}}\n`;
+ }
+
+ getSourceForAmdOrUmdExternal(id, optional, request) {
+ const externalVariable = `__WEBPACK_EXTERNAL_MODULE_${Template.toIdentifier(
+ `${id}`
+ )}__`;
+ const missingModuleError = optional
+ ? this.checkExternalVariable(externalVariable, request)
+ : "";
+ return `${missingModuleError}module.exports = ${externalVariable};`;
+ }
+
+ getSourceForDefaultCase(optional, request) {
+ if (!Array.isArray(request)) {
+ // make it an array as the look up works the same basically
+ request = [request];
+ }
+
+ const variableName = request[0];
+ const missingModuleError = optional
+ ? this.checkExternalVariable(variableName, request.join("."))
+ : "";
+ const objectLookup = request
+ .slice(1)
+ .map(r => `[${JSON.stringify(r)}]`)
+ .join("");
+ return `${missingModuleError}module.exports = ${variableName}${objectLookup};`;
+ }
+
+ getSourceString(runtime) {
+ const request =
+ typeof this.request === "object" && !Array.isArray(this.request)
+ ? this.request[this.externalType]
+ : this.request;
+ switch (this.externalType) {
+ case "this":
+ case "window":
+ case "self":
+ return this.getSourceForGlobalVariableExternal(
+ request,
+ this.externalType
+ );
+ case "global":
+ return this.getSourceForGlobalVariableExternal(
+ request,
+ runtime.outputOptions.globalObject
+ );
+ case "commonjs":
+ case "commonjs2":
+ return this.getSourceForCommonJsExternal(request);
+ case "amd":
+ case "amd-require":
+ case "umd":
+ case "umd2":
+ case "system":
+ return this.getSourceForAmdOrUmdExternal(
+ this.id,
+ this.optional,
+ request
+ );
+ default:
+ return this.getSourceForDefaultCase(this.optional, request);
+ }
+ }
+
+ getSource(sourceString) {
+ if (this.useSourceMap) {
+ return new OriginalSource(sourceString, this.identifier());
+ }
+
+ return new RawSource(sourceString);
+ }
+
+ source(dependencyTemplates, runtime) {
+ return this.getSource(this.getSourceString(runtime));
+ }
+
+ size() {
+ return 42;
+ }
+
+ /**
+ * @param {Hash} hash the hash used to track dependencies
+ * @returns {void}
+ */
+ updateHash(hash) {
+ hash.update(this.externalType);
+ hash.update(JSON.stringify(this.request));
+ hash.update(JSON.stringify(Boolean(this.optional)));
+ super.updateHash(hash);
+ }
+}
+
+module.exports = ExternalModule;