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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const RequireEnsureDependency = require("./RequireEnsureDependency");
const RequireEnsureItemDependency = require("./RequireEnsureItemDependency");
const RequireEnsureDependenciesBlockParserPlugin = require("./RequireEnsureDependenciesBlockParserPlugin");
const {
JAVASCRIPT_MODULE_TYPE_AUTO,
JAVASCRIPT_MODULE_TYPE_DYNAMIC
} = require("../ModuleTypeConstants");
const {
evaluateToString,
toConstantDependency
} = require("../javascript/JavascriptParserHelpers");
/** @typedef {import("../../declarations/WebpackOptions").JavascriptParserOptions} JavascriptParserOptions */
/** @typedef {import("../Compiler")} Compiler */
/** @typedef {import("../javascript/JavascriptParser")} Parser */
const PLUGIN_NAME = "RequireEnsurePlugin";
class RequireEnsurePlugin {
/**
* Apply the plugin
* @param {Compiler} compiler the compiler instance
* @returns {void}
*/
apply(compiler) {
compiler.hooks.compilation.tap(
PLUGIN_NAME,
(compilation, { normalModuleFactory }) => {
compilation.dependencyFactories.set(
RequireEnsureItemDependency,
normalModuleFactory
);
compilation.dependencyTemplates.set(
RequireEnsureItemDependency,
new RequireEnsureItemDependency.Template()
);
compilation.dependencyTemplates.set(
RequireEnsureDependency,
new RequireEnsureDependency.Template()
);
/**
* @param {Parser} parser parser parser
* @param {JavascriptParserOptions} parserOptions parserOptions
* @returns {void}
*/
const handler = (parser, parserOptions) => {
if (
parserOptions.requireEnsure !== undefined &&
!parserOptions.requireEnsure
)
return;
new RequireEnsureDependenciesBlockParserPlugin().apply(parser);
parser.hooks.evaluateTypeof
.for("require.ensure")
.tap(PLUGIN_NAME, evaluateToString("function"));
parser.hooks.typeof
.for("require.ensure")
.tap(
PLUGIN_NAME,
toConstantDependency(parser, JSON.stringify("function"))
);
};
normalModuleFactory.hooks.parser
.for(JAVASCRIPT_MODULE_TYPE_AUTO)
.tap(PLUGIN_NAME, handler);
normalModuleFactory.hooks.parser
.for(JAVASCRIPT_MODULE_TYPE_DYNAMIC)
.tap(PLUGIN_NAME, handler);
}
);
}
}
module.exports = RequireEnsurePlugin;
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