mirror of https://github.com/webpack/webpack.git
43 lines
1.7 KiB
JavaScript
43 lines
1.7 KiB
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Tobias Koppers @sokra
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*/
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"use strict";
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const RequireEnsureItemDependency = require("./RequireEnsureItemDependency");
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const RequireEnsureDependency = require("./RequireEnsureDependency");
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const NullFactory = require("../NullFactory");
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const RequireEnsureDependenciesBlockParserPlugin = require("./RequireEnsureDependenciesBlockParserPlugin");
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const ParserHelpers = require("../ParserHelpers");
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class RequireEnsurePlugin {
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apply(compiler) {
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compiler.hooks.compilation.tap("RequireEnsurePlugin", (compilation, {
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normalModuleFactory
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}) => {
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compilation.dependencyFactories.set(RequireEnsureItemDependency, normalModuleFactory);
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compilation.dependencyTemplates.set(RequireEnsureItemDependency, new RequireEnsureItemDependency.Template());
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compilation.dependencyFactories.set(RequireEnsureDependency, new NullFactory());
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compilation.dependencyTemplates.set(RequireEnsureDependency, new RequireEnsureDependency.Template());
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const handler = (parser, parserOptions) => {
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if(typeof parserOptions.requireEnsure !== "undefined" && !parserOptions.requireEnsure)
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return;
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new RequireEnsureDependenciesBlockParserPlugin().apply(parser);
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parser.hooks.evaluateTypeof.for("require.ensure").tap("RequireEnsurePlugin", ParserHelpers.evaluateToString("function"));
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parser.hooks.typeof.for("require.ensure").tap("RequireEnsurePlugin", ParserHelpers.toConstantDependency(parser, JSON.stringify("function")));
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};
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normalModuleFactory.hooks.parser.for("javascript/auto").tap("RequireEnsurePlugin", handler);
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normalModuleFactory.hooks.parser.for("javascript/dynamic").tap("RequireEnsurePlugin", handler);
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});
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}
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}
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module.exports = RequireEnsurePlugin;
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