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ImportPlugin.js
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Thu, Feb 13, 13:59

ImportPlugin.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const ImportContextDependency = require("./ImportContextDependency");
const ImportDependency = require("./ImportDependency");
const ImportEagerDependency = require("./ImportEagerDependency");
const ImportParserPlugin = require("./ImportParserPlugin");
const ImportWeakDependency = require("./ImportWeakDependency");
/** @typedef {import("../Compiler")} Compiler */
class ImportPlugin {
constructor(options) {
this.options = options;
}
/**
* Apply the plugin
* @param {Compiler} compiler the compiler instance
* @returns {void}
*/
apply(compiler) {
const options = this.options;
compiler.hooks.compilation.tap(
"ImportPlugin",
(compilation, { contextModuleFactory, normalModuleFactory }) => {
compilation.dependencyFactories.set(
ImportDependency,
normalModuleFactory
);
compilation.dependencyTemplates.set(
ImportDependency,
new ImportDependency.Template()
);
compilation.dependencyFactories.set(
ImportEagerDependency,
normalModuleFactory
);
compilation.dependencyTemplates.set(
ImportEagerDependency,
new ImportEagerDependency.Template()
);
compilation.dependencyFactories.set(
ImportWeakDependency,
normalModuleFactory
);
compilation.dependencyTemplates.set(
ImportWeakDependency,
new ImportWeakDependency.Template()
);
compilation.dependencyFactories.set(
ImportContextDependency,
contextModuleFactory
);
compilation.dependencyTemplates.set(
ImportContextDependency,
new ImportContextDependency.Template()
);
const handler = (parser, parserOptions) => {
if (parserOptions.import !== undefined && !parserOptions.import)
return;
new ImportParserPlugin(options).apply(parser);
};
normalModuleFactory.hooks.parser
.for("javascript/auto")
.tap("ImportPlugin", handler);
normalModuleFactory.hooks.parser
.for("javascript/dynamic")
.tap("ImportPlugin", handler);
normalModuleFactory.hooks.parser
.for("javascript/esm")
.tap("ImportPlugin", handler);
}
);
}
}
module.exports = ImportPlugin;

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