ImportMetaContextPlugin.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Ivan Kopeykin @vankop
*/
"use strict";
const {
JAVASCRIPT_MODULE_TYPE_AUTO,
JAVASCRIPT_MODULE_TYPE_ESM
} = require("../ModuleTypeConstants");
const ContextElementDependency = require("./ContextElementDependency");
const ImportMetaContextDependency = require("./ImportMetaContextDependency");
const ImportMetaContextDependencyParserPlugin = require("./ImportMetaContextDependencyParserPlugin");
/** @typedef {import("../../declarations/WebpackOptions").JavascriptParserOptions} JavascriptParserOptions */
/** @typedef {import("../../declarations/WebpackOptions").ResolveOptions} ResolveOptions */
/** @typedef {import("../Compiler")} Compiler */
/** @typedef {import("../javascript/JavascriptParser")} Parser */
const PLUGIN_NAME = "ImportMetaContextPlugin";
class ImportMetaContextPlugin {
/**
* Apply the plugin
* @param {Compiler} compiler the compiler instance
* @returns {void}
*/
apply(compiler) {
compiler.hooks.compilation.tap(
PLUGIN_NAME,
(compilation, { contextModuleFactory, normalModuleFactory }) => {
compilation.dependencyFactories.set(
ImportMetaContextDependency,
contextModuleFactory
);
compilation.dependencyTemplates.set(
ImportMetaContextDependency,
new ImportMetaContextDependency.Template()
);
compilation.dependencyFactories.set(
ContextElementDependency,
normalModuleFactory
);
/**
* @param {Parser} parser parser parser
* @param {JavascriptParserOptions} parserOptions parserOptions
* @returns {void}
*/
const handler = (parser, parserOptions) => {
if (
parserOptions.importMetaContext !== undefined &&
!parserOptions.importMetaContext
)
return;
new ImportMetaContextDependencyParserPlugin().apply(parser);
};
normalModuleFactory.hooks.parser
.for(JAVASCRIPT_MODULE_TYPE_AUTO)
.tap(PLUGIN_NAME, handler);
normalModuleFactory.hooks.parser
.for(JAVASCRIPT_MODULE_TYPE_ESM)
.tap(PLUGIN_NAME, handler);
}
);
}
}
module.exports = ImportMetaContextPlugin;