Function deriveBlockModules

lib/buildChunkGraph.js:255–281

(module, source, runtime, blockModulesMap)

 * @param {BlockModulesMap} blockModulesMap block modules map to fill
 */
const deriveBlockModules = (module, source, runtime, blockModulesMap) => {
	/** @type {DependenciesBlock[]} */
	const queue = [module];
	while (queue.length > 0) {
		const block = /** @type {DependenciesBlock} */ (queue.pop());
		const sourceModules =
			/** @type {BlockModulesInFlattenTuples} */
			(source.get(block));
		let target = sourceModules;
		for (let i = 0, len = sourceModules.length; i < len; i += 3) {
			const state = getActiveStateOfConnections(
				/** @type {ModuleGraphConnection[]} */ (sourceModules[i + 2]),
				runtime
			);
			if (target === sourceModules) {
				if (state === sourceModules[i + 1]) continue;
				// states diverged, copy (states before i are identical)
				target = [...sourceModules];
			}
			target[i + 1] = state;
		}
		blockModulesMap.set(block, target);
		for (const b of block.blocks) {
			queue.push(b);
		}
	}
};

/**
 * Processes the provided logger.