source: frontend/node_modules/webpack/lib/dependencies/CssIcssSymbolDependency.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Author Alexander Akait @alexander-akait
*/

"use strict";

const { CSS_TYPE } = require("../ModuleSourceTypeConstants");
const makeSerializable = require("../util/makeSerializable");
const CssIcssExportDependency = require("./CssIcssExportDependency");
const NullDependency = require("./NullDependency");

/** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
/** @typedef {import("../Dependency")} Dependency */
/** @typedef {import("../Dependency").ExportsSpec} ExportsSpec */
/** @typedef {import("../Dependency").ReferencedExports} ReferencedExports */
/** @typedef {import("../Dependency").UpdateHashContext} UpdateHashContext */
/** @typedef {import("../DependencyTemplate").CssDependencyTemplateContext} DependencyTemplateContext */
/** @typedef {import("../ModuleGraph")} ModuleGraph */
/** @typedef {import("../css/CssParser").Range} Range */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
/** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
/** @typedef {import("../util/Hash")} Hash */
/** @typedef {import("../util/runtime").RuntimeSpec} RuntimeSpec */

class CssIcssSymbolDependency extends NullDependency {
        /**
         * Creates an instance of CssIcssSymbolDependency.
         * @param {string} localName local name
         * @param {Range} range range
         * @param {string=} value value when it was defined in this module
         * @param {string=} importName import name when it was imported from other module
         * @param {string=} request request of the `@value` import that was active when this reference was parsed — used to disambiguate when the same local name is imported from multiple modules
         */
        constructor(localName, range, value, importName, request) {
                super();
                this.localName = localName;
                this.range = range;
                this.value = value;
                this.importName = importName;
                this.request = request;
                /** @type {undefined | string} */
                this._hashUpdate = undefined;
        }

        get type() {
                return "css symbol identifier";
        }

        /**
         * Updates the hash with the data contributed by this instance.
         * @param {Hash} hash hash to be updated
         * @param {UpdateHashContext} context context
         * @returns {void}
         */
        updateHash(hash, context) {
                if (this._hashUpdate === undefined) {
                        // Concatenate with explicit field separators so adjacent fields
                        // can't alias each other (e.g. range `[1,11]` + localName `"foo"`
                        // vs range `[1,1]` + localName `"1foo"`).
                        this._hashUpdate = `range|${JSON.stringify(this.range)}|localName|${this.localName}|value|${this.value || ""}|importName|${this.importName || ""}|request|${this.request || ""}`;
                }
                hash.update(this._hashUpdate);
        }

        /**
         * Serializes this instance into the provided serializer context.
         * @param {ObjectSerializerContext} context context
         */
        serialize(context) {
                const { write } = context;
                write(this.localName);
                write(this.range);
                write(this.value);
                write(this.importName);
                write(this.request);
                super.serialize(context);
        }

        /**
         * Restores this instance from the provided deserializer context.
         * @param {ObjectDeserializerContext} context context
         */
        deserialize(context) {
                const { read } = context;
                this.localName = read();
                this.range = read();
                this.value = read();
                this.importName = read();
                this.request = read();
                super.deserialize(context);
        }
}

CssIcssSymbolDependency.Template = class CssIcssSymbolDependencyTemplate extends (
        NullDependency.Template
) {
        /**
         * Applies the plugin by registering its hooks on the compiler.
         * @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, templateContext) {
                if (templateContext.type === CSS_TYPE) {
                        const dep = /** @type {CssIcssSymbolDependency} */ (dependency);
                        /** @type {string | undefined} */
                        const value = dep.importName
                                ? CssIcssExportDependency.Template.resolve(
                                                dep.localName,
                                                dep.importName,
                                                templateContext,
                                                dep.request
                                        )
                                : dep.value;

                        if (!value) {
                                return;
                        }

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

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

module.exports = CssIcssSymbolDependency;