simple-squiggle

A restricted subset of Squiggle
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ImportMetaContextPlugin.js (1671B)

      1 /*
      2 	MIT License http://www.opensource.org/licenses/mit-license.php
      3 	Author Ivan Kopeykin @vankop
      4 */
      5 
      6 "use strict";
      7 
      8 const ContextElementDependency = require("./ContextElementDependency");
      9 const ImportMetaContextDependency = require("./ImportMetaContextDependency");
     10 const ImportMetaContextDependencyParserPlugin = require("./ImportMetaContextDependencyParserPlugin");
     11 
     12 /** @typedef {import("../../declarations/WebpackOptions").ResolveOptions} ResolveOptions */
     13 /** @typedef {import("../Compiler")} Compiler */
     14 
     15 class ImportMetaContextPlugin {
     16 	/**
     17 	 * Apply the plugin
     18 	 * @param {Compiler} compiler the compiler instance
     19 	 * @returns {void}
     20 	 */
     21 	apply(compiler) {
     22 		compiler.hooks.compilation.tap(
     23 			"RequireContextPlugin",
     24 			(compilation, { contextModuleFactory, normalModuleFactory }) => {
     25 				compilation.dependencyFactories.set(
     26 					ImportMetaContextDependency,
     27 					contextModuleFactory
     28 				);
     29 				compilation.dependencyTemplates.set(
     30 					ImportMetaContextDependency,
     31 					new ImportMetaContextDependency.Template()
     32 				);
     33 				compilation.dependencyFactories.set(
     34 					ContextElementDependency,
     35 					normalModuleFactory
     36 				);
     37 
     38 				const handler = (parser, parserOptions) => {
     39 					if (
     40 						parserOptions.importMetaContext !== undefined &&
     41 						!parserOptions.importMetaContext
     42 					)
     43 						return;
     44 
     45 					new ImportMetaContextDependencyParserPlugin().apply(parser);
     46 				};
     47 
     48 				normalModuleFactory.hooks.parser
     49 					.for("javascript/auto")
     50 					.tap("ImportMetaContextPlugin", handler);
     51 				normalModuleFactory.hooks.parser
     52 					.for("javascript/esm")
     53 					.tap("ImportMetaContextPlugin", handler);
     54 			}
     55 		);
     56 	}
     57 }
     58 
     59 module.exports = ImportMetaContextPlugin;