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							101 lines
						
					
					
						
							2.8 KiB
						
					
					
				
			
		
		
	
	
							101 lines
						
					
					
						
							2.8 KiB
						
					
					
				| /* | |
| 	MIT License http://www.opensource.org/licenses/mit-license.php | |
| 	Author Tobias Koppers @sokra | |
| */ | |
| 
 | |
| "use strict"; | |
| 
 | |
| const ConstDependency = require("./dependencies/ConstDependency"); | |
| const ProvidedDependency = require("./dependencies/ProvidedDependency"); | |
| const { approve } = require("./javascript/JavascriptParserHelpers"); | |
| 
 | |
| /** @typedef {import("./Compiler")} Compiler */ | |
| 
 | |
| class ProvidePlugin { | |
| 	/** | |
| 	 * @param {Record<string, string | string[]>} definitions the provided identifiers | |
| 	 */ | |
| 	constructor(definitions) { | |
| 		this.definitions = definitions; | |
| 	} | |
| 
 | |
| 	/** | |
| 	 * Apply the plugin | |
| 	 * @param {Compiler} compiler the compiler instance | |
| 	 * @returns {void} | |
| 	 */ | |
| 	apply(compiler) { | |
| 		const definitions = this.definitions; | |
| 		compiler.hooks.compilation.tap( | |
| 			"ProvidePlugin", | |
| 			(compilation, { normalModuleFactory }) => { | |
| 				compilation.dependencyTemplates.set( | |
| 					ConstDependency, | |
| 					new ConstDependency.Template() | |
| 				); | |
| 				compilation.dependencyFactories.set( | |
| 					ProvidedDependency, | |
| 					normalModuleFactory | |
| 				); | |
| 				compilation.dependencyTemplates.set( | |
| 					ProvidedDependency, | |
| 					new ProvidedDependency.Template() | |
| 				); | |
| 				const handler = (parser, parserOptions) => { | |
| 					Object.keys(definitions).forEach(name => { | |
| 						const request = [].concat(definitions[name]); | |
| 						const splittedName = name.split("."); | |
| 						if (splittedName.length > 0) { | |
| 							splittedName.slice(1).forEach((_, i) => { | |
| 								const name = splittedName.slice(0, i + 1).join("."); | |
| 								parser.hooks.canRename.for(name).tap("ProvidePlugin", approve); | |
| 							}); | |
| 						} | |
| 
 | |
| 						parser.hooks.expression.for(name).tap("ProvidePlugin", expr => { | |
| 							const nameIdentifier = name.includes(".") | |
| 								? `__webpack_provided_${name.replace(/\./g, "_dot_")}` | |
| 								: name; | |
| 							const dep = new ProvidedDependency( | |
| 								request[0], | |
| 								nameIdentifier, | |
| 								request.slice(1), | |
| 								expr.range | |
| 							); | |
| 							dep.loc = expr.loc; | |
| 							parser.state.module.addDependency(dep); | |
| 							return true; | |
| 						}); | |
| 
 | |
| 						parser.hooks.call.for(name).tap("ProvidePlugin", expr => { | |
| 							const nameIdentifier = name.includes(".") | |
| 								? `__webpack_provided_${name.replace(/\./g, "_dot_")}` | |
| 								: name; | |
| 							const dep = new ProvidedDependency( | |
| 								request[0], | |
| 								nameIdentifier, | |
| 								request.slice(1), | |
| 								expr.callee.range | |
| 							); | |
| 							dep.loc = expr.callee.loc; | |
| 							parser.state.module.addDependency(dep); | |
| 							parser.walkExpressions(expr.arguments); | |
| 							return true; | |
| 						}); | |
| 					}); | |
| 				}; | |
| 				normalModuleFactory.hooks.parser | |
| 					.for("javascript/auto") | |
| 					.tap("ProvidePlugin", handler); | |
| 				normalModuleFactory.hooks.parser | |
| 					.for("javascript/dynamic") | |
| 					.tap("ProvidePlugin", handler); | |
| 				normalModuleFactory.hooks.parser | |
| 					.for("javascript/esm") | |
| 					.tap("ProvidePlugin", handler); | |
| 			} | |
| 		); | |
| 	} | |
| } | |
| 
 | |
| module.exports = ProvidePlugin;
 | |
| 
 |