Method _getModuleGraphHashWithConnections

lib/ChunkGraph.js:1819–1959

* Get module graph hash with connections. * @param {ChunkGraphModule} cgm the ChunkGraphModule * @param {Module} module the module * @param {RuntimeSpec} runtime the runtime * @returns {string} hash

(cgm, module, runtime)

	 * @returns {string} hash
	 */
	_getModuleGraphHashWithConnections(cgm, module, runtime) {
		if (cgm.graphHashesWithConnections === undefined) {
			cgm.graphHashesWithConnections = new RuntimeSpecMap();
		}

		/**
		 * Active state to string.
		 * @param {ConnectionState} state state
		 * @returns {"F" | "T" | "O"} result
		 */
		const activeStateToString = (state) => {
			if (state === false) return "F";
			if (state === true) return "T";
			if (state === ModuleGraphConnection.TRANSITIVE_ONLY) return "O";
			throw new Error("Not implemented active state");
		};
		const strict =
			module.buildMeta &&
			/** @type {JavascriptModuleBuildMeta} */ (module.buildMeta)
				.strictHarmonyModule;
		return cgm.graphHashesWithConnections.provide(runtime, () => {
			const graphHash = this._getModuleGraphHashBigInt(
				cgm,
				module,
				runtime
			).toString(16);
			const connections = this.moduleGraph.getOutgoingConnections(module);
			/** @type {Set<Module>} */
			const activeNamespaceModules = new Set();
			/** @type {Map<string, Module | Set<Module>>} */
			const connectedModules = new Map();
			/**
			 * Process connection.
			 * @param {ModuleGraphConnection} connection connection
			 * @param {string} stateInfo state info
			 */
			const processConnection = (connection, stateInfo) => {
				const module = connection.module;
				stateInfo += module.getExportsType(this.moduleGraph, strict);
				// cspell:word Tnamespace
				if (stateInfo === "Tnamespace") {
					activeNamespaceModules.add(module);
				} else {
					const oldModule = connectedModules.get(stateInfo);
					if (oldModule === undefined) {
						connectedModules.set(stateInfo, module);
					} else if (oldModule instanceof Set) {
						oldModule.add(module);
					} else if (oldModule !== module) {
						connectedModules.set(stateInfo, new Set([oldModule, module]));
					}
				}
			};
			if (runtime === undefined || typeof runtime === "string") {
				for (const connection of connections) {
					const state = connection.getActiveState(runtime);
					if (state === false) continue;
					processConnection(connection, state === true ? "T" : "O");