source: trip-planner-front/node_modules/webpack/lib/dependencies/ImportDependency.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Author Tobias Koppers @sokra
*/

"use strict";

const Dependency = require("../Dependency");
const makeSerializable = require("../util/makeSerializable");
const ModuleDependency = require("./ModuleDependency");

/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
/** @typedef {import("../AsyncDependenciesBlock")} AsyncDependenciesBlock */
/** @typedef {import("../Dependency").ReferencedExport} ReferencedExport */
/** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
/** @typedef {import("../ModuleGraph")} ModuleGraph */
/** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */

class ImportDependency extends ModuleDependency {
        /**
         * @param {string} request the request
         * @param {[number, number]} range expression range
         * @param {string[][]=} referencedExports list of referenced exports
         */
        constructor(request, range, referencedExports) {
                super(request);
                this.range = range;
                this.referencedExports = referencedExports;
        }

        get type() {
                return "import()";
        }

        get category() {
                return "esm";
        }

        /**
         * Returns list of exports referenced by this dependency
         * @param {ModuleGraph} moduleGraph module graph
         * @param {RuntimeSpec} runtime the runtime for which the module is analysed
         * @returns {(string[] | ReferencedExport)[]} referenced exports
         */
        getReferencedExports(moduleGraph, runtime) {
                return this.referencedExports
                        ? this.referencedExports.map(e => ({
                                        name: e,
                                        canMangle: false
                          }))
                        : Dependency.EXPORTS_OBJECT_REFERENCED;
        }

        serialize(context) {
                context.write(this.range);
                context.write(this.referencedExports);
                super.serialize(context);
        }

        deserialize(context) {
                this.range = context.read();
                this.referencedExports = context.read();
                super.deserialize(context);
        }
}

makeSerializable(ImportDependency, "webpack/lib/dependencies/ImportDependency");

ImportDependency.Template = class ImportDependencyTemplate extends (
        ModuleDependency.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, module, moduleGraph, chunkGraph, runtimeRequirements }
        ) {
                const dep = /** @type {ImportDependency} */ (dependency);
                const block = /** @type {AsyncDependenciesBlock} */ (
                        moduleGraph.getParentBlock(dep)
                );
                const content = runtimeTemplate.moduleNamespacePromise({
                        chunkGraph,
                        block: block,
                        module: moduleGraph.getModule(dep),
                        request: dep.request,
                        strict: module.buildMeta.strictHarmonyModule,
                        message: "import()",
                        runtimeRequirements
                });

                source.replace(dep.range[0], dep.range[1] - 1, content);
        }
};

module.exports = ImportDependency;