init

马宇豪

2024-07-16 f591c27b57e2418c9495bc02ae8cfff84d35bc18

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/*
    MIT License http://www.opensource.org/licenses/mit-license.php
    Author Tobias Koppers @sokra
*/
 
"use strict";
 
const RuntimeGlobals = require("../RuntimeGlobals");
const makeSerializable = require("../util/makeSerializable");
const NullDependency = require("./NullDependency");
 
/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
/** @typedef {import("../AsyncDependenciesBlock")} AsyncDependenciesBlock */
/** @typedef {import("../Dependency")} Dependency */
/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
/** @typedef {import("../javascript/JavascriptParser").Range} Range */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
 
class RequireEnsureDependency extends NullDependency {
    /**
     * @param {Range} range range
     * @param {Range} contentRange content range
     * @param {Range} errorHandlerRange error handler range
     */
    constructor(range, contentRange, errorHandlerRange) {
        super();
 
        this.range = range;
        this.contentRange = contentRange;
        this.errorHandlerRange = errorHandlerRange;
    }
 
    get type() {
        return "require.ensure";
    }
 
    /**
     * @param {ObjectSerializerContext} context context
     */
    serialize(context) {
        const { write } = context;
 
        write(this.range);
        write(this.contentRange);
        write(this.errorHandlerRange);
 
        super.serialize(context);
    }
 
    /**
     * @param {ObjectDeserializerContext} context context
     */
    deserialize(context) {
        const { read } = context;
 
        this.range = read();
        this.contentRange = read();
        this.errorHandlerRange = read();
 
        super.deserialize(context);
    }
}
 
makeSerializable(
    RequireEnsureDependency,
    "webpack/lib/dependencies/RequireEnsureDependency"
);
 
RequireEnsureDependency.Template = class RequireEnsureDependencyTemplate extends (
    NullDependency.Template
) {
    /**
     * @param {Dependency} dependency the dependency for which the template should be applied
     * @param {ReplaceSource} source the current replace source which can be modified
     * @param {DependencyTemplateContext} templateContext the context object
     * @returns {void}
     */
    apply(
        dependency,
        source,
        { runtimeTemplate, moduleGraph, chunkGraph, runtimeRequirements }
    ) {
        const dep = /** @type {RequireEnsureDependency} */ (dependency);
        const depBlock = /** @type {AsyncDependenciesBlock} */ (
            moduleGraph.getParentBlock(dep)
        );
        const promise = runtimeTemplate.blockPromise({
            chunkGraph,
            block: depBlock,
            message: "require.ensure",
            runtimeRequirements
        });
        const range = dep.range;
        const contentRange = dep.contentRange;
        const errorHandlerRange = dep.errorHandlerRange;
        source.replace(range[0], contentRange[0] - 1, `${promise}.then((`);
        if (errorHandlerRange) {
            source.replace(
                contentRange[1],
                errorHandlerRange[0] - 1,
                `).bind(null, ${RuntimeGlobals.require}))['catch'](`
            );
            source.replace(errorHandlerRange[1], range[1] - 1, ")");
        } else {
            source.replace(
                contentRange[1],
                range[1] - 1,
                `).bind(null, ${RuntimeGlobals.require}))['catch'](${RuntimeGlobals.uncaughtErrorHandler})`
            );
        }
    }
};
 
module.exports = RequireEnsureDependency;