Method _buildModule

lib/Compilation.js:1693–1760

* Builds the module object * @param {Module} module module to be built * @param {ModuleCallback} callback the callback * @returns {void}

(module, callback)

	 * @returns {void}
	 */
	_buildModule(module, callback) {
		const currentProfile = this.profile
			? this.moduleGraph.getProfile(module)
			: undefined;
		if (currentProfile !== undefined) {
			currentProfile.markBuildingStart();
		}

		module.needBuild(
			{
				compilation: this,
				fileSystemInfo: this.fileSystemInfo,
				valueCacheVersions: this.valueCacheVersions
			},
			(err, needBuild) => {
				if (err) return callback(err);

				if (!needBuild) {
					if (currentProfile !== undefined) {
						currentProfile.markBuildingEnd();
					}
					this.hooks.stillValidModule.call(module);
					return callback();
				}

				this.hooks.buildModule.call(module);
				this.builtModules.add(module);
				module.build(
					this.options,
					this,
					this.resolverFactory.get("normal", module.resolveOptions),
					/** @type {InputFileSystem} */
					(this.inputFileSystem),
					(err) => {
						if (currentProfile !== undefined) {
							currentProfile.markBuildingEnd();
						}
						if (err) {
							this.hooks.failedModule.call(module, err);
							return callback(err);
						}
						if (currentProfile !== undefined) {
							currentProfile.markStoringStart();
						}
						this._modulesCache.store(
							module.identifier(),
							null,
							module,
							(err) => {
								if (currentProfile !== undefined) {
									currentProfile.markStoringEnd();
								}
								if (err) {
									this.hooks.failedModule.call(
										module,
										/** @type {WebpackError} */ (err)
									);
									return callback(new ModuleStoreError(module, err));