src/vs/workbench/browser/actions/workspaceActions.ts/OpenWorkspaceConfigFileAction/constructor
class OpenWorkspaceConfigFileAction:	constructor(
		id: string,
		label: string,
		@IWorkspaceContextService private readonly workspaceContextService: IWorkspaceContextService,
		@IEditorService private readonly editorService: IEditorService
	) {
		super(id, label);

		this.enabled = !!this.workspaceContextService.getWorkspace().configuration;
	}