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