init

马宇豪

2024-07-16 f591c27b57e2418c9495bc02ae8cfff84d35bc18

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/*
    MIT License http://www.opensource.org/licenses/mit-license.php
    Author Ivan Kopeykin @vankop
*/
 
"use strict";
 
const IgnoreErrorModuleFactory = require("./IgnoreErrorModuleFactory");
const {
    JAVASCRIPT_MODULE_TYPE_AUTO,
    JAVASCRIPT_MODULE_TYPE_DYNAMIC,
    JAVASCRIPT_MODULE_TYPE_ESM
} = require("./ModuleTypeConstants");
const WebpackIsIncludedDependency = require("./dependencies/WebpackIsIncludedDependency");
const {
    toConstantDependency
} = require("./javascript/JavascriptParserHelpers");
 
/** @typedef {import("enhanced-resolve/lib/Resolver")} Resolver */
/** @typedef {import("./Compiler")} Compiler */
/** @typedef {import("./Module")} Module */
/** @typedef {import("./javascript/JavascriptParser")} JavascriptParser */
 
const PLUGIN_NAME = "WebpackIsIncludedPlugin";
 
class WebpackIsIncludedPlugin {
    /**
     * @param {Compiler} compiler the compiler instance
     * @returns {void}
     */
    apply(compiler) {
        compiler.hooks.compilation.tap(
            PLUGIN_NAME,
            (compilation, { normalModuleFactory }) => {
                compilation.dependencyFactories.set(
                    WebpackIsIncludedDependency,
                    new IgnoreErrorModuleFactory(normalModuleFactory)
                );
                compilation.dependencyTemplates.set(
                    WebpackIsIncludedDependency,
                    new WebpackIsIncludedDependency.Template()
                );
 
                /**
                 * @param {JavascriptParser} parser the parser
                 * @returns {void}
                 */
                const handler = parser => {
                    parser.hooks.call
                        .for("__webpack_is_included__")
                        .tap(PLUGIN_NAME, expr => {
                            if (
                                expr.type !== "CallExpression" ||
                                expr.arguments.length !== 1 ||
                                expr.arguments[0].type === "SpreadElement"
                            )
                                return;
 
                            const request = parser.evaluateExpression(expr.arguments[0]);
 
                            if (!request.isString()) return;
 
                            const dep = new WebpackIsIncludedDependency(
                                request.string,
                                expr.range
                            );
                            dep.loc = expr.loc;
                            parser.state.module.addDependency(dep);
                            return true;
                        });
                    parser.hooks.typeof
                        .for("__webpack_is_included__")
                        .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);
                normalModuleFactory.hooks.parser
                    .for(JAVASCRIPT_MODULE_TYPE_ESM)
                    .tap(PLUGIN_NAME, handler);
            }
        );
    }
}
 
module.exports = WebpackIsIncludedPlugin;