source: imaps-frontend/node_modules/webpack/lib/dependencies/CssIcssExportDependency.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Author Ivan Kopeykin @vankop
*/

"use strict";

const { cssExportConvention } = require("../util/conventions");
const makeSerializable = require("../util/makeSerializable");
const NullDependency = require("./NullDependency");

/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
/** @typedef {import("../../declarations/WebpackOptions").CssGeneratorExportsConvention} CssGeneratorExportsConvention */
/** @typedef {import("../CssModule")} CssModule */
/** @typedef {import("../Dependency")} Dependency */
/** @typedef {import("../Dependency").ExportsSpec} ExportsSpec */
/** @typedef {import("../Dependency").UpdateHashContext} UpdateHashContext */
/** @typedef {import("../DependencyTemplate").CssDependencyTemplateContext} DependencyTemplateContext */
/** @typedef {import("../ModuleGraph")} ModuleGraph */
/** @typedef {import("../css/CssGenerator")} CssGenerator */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
/** @typedef {import("../util/Hash")} Hash */

class CssIcssExportDependency extends NullDependency {
        /**
         * @param {string} name name
         * @param {string} value value
         */
        constructor(name, value) {
                super();
                this.name = name;
                this.value = value;
                this._hashUpdate = undefined;
        }

        get type() {
                return "css :export";
        }

        /**
         * @param {string} name export name
         * @param {CssGeneratorExportsConvention} convention convention of the export name
         * @returns {string[]} convention results
         */
        getExportsConventionNames(name, convention) {
                if (this._conventionNames) {
                        return this._conventionNames;
                }
                this._conventionNames = cssExportConvention(name, convention);
                return this._conventionNames;
        }

        /**
         * Returns the exported names
         * @param {ModuleGraph} moduleGraph module graph
         * @returns {ExportsSpec | undefined} export names
         */
        getExports(moduleGraph) {
                const module = /** @type {CssModule} */ (moduleGraph.getParentModule(this));
                const convention =
                        /** @type {CssGenerator} */
                        (module.generator).convention;
                const names = this.getExportsConventionNames(this.name, convention);
                return {
                        exports: names.map(name => ({
                                name,
                                canMangle: true
                        })),
                        dependencies: undefined
                };
        }

        /**
         * Update the hash
         * @param {Hash} hash hash to be updated
         * @param {UpdateHashContext} context context
         * @returns {void}
         */
        updateHash(hash, { chunkGraph }) {
                if (this._hashUpdate === undefined) {
                        const module =
                                /** @type {CssModule} */
                                (chunkGraph.moduleGraph.getParentModule(this));
                        const generator =
                                /** @type {CssGenerator} */
                                (module.generator);
                        const names = this.getExportsConventionNames(
                                this.name,
                                generator.convention
                        );
                        this._hashUpdate = JSON.stringify(names);
                }
                hash.update("exportsConvention");
                hash.update(this._hashUpdate);
        }

        /**
         * @param {ObjectSerializerContext} context context
         */
        serialize(context) {
                const { write } = context;
                write(this.name);
                write(this.value);
                super.serialize(context);
        }

        /**
         * @param {ObjectDeserializerContext} context context
         */
        deserialize(context) {
                const { read } = context;
                this.name = read();
                this.value = read();
                super.deserialize(context);
        }
}

CssIcssExportDependency.Template = class CssIcssExportDependencyTemplate 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, { cssData, module: m, runtime, moduleGraph }) {
                const dep = /** @type {CssIcssExportDependency} */ (dependency);
                const module = /** @type {CssModule} */ (m);
                const convention =
                        /** @type {CssGenerator} */
                        (module.generator).convention;
                const names = dep.getExportsConventionNames(dep.name, convention);
                const usedNames =
                        /** @type {string[]} */
                        (
                                names
                                        .map(name =>
                                                moduleGraph.getExportInfo(module, name).getUsedName(name, runtime)
                                        )
                                        .filter(Boolean)
                        );

                for (const used of usedNames.concat(names)) {
                        cssData.exports.set(used, dep.value);
                }
        }
};

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

module.exports = CssIcssExportDependency;