1305&& BuildEnvironmentHelper.Instance.RunningInVisualStudio

1024return BuildEnvironmentHelper.Instance.CurrentMSBuildExePath;

843if (!NativeMethodsShared.IsWindows || BuildEnvironmentHelper.Instance.RunningInVisualStudio)

72CommunicationsUtilities.Trace("MSBUILDNODEHANDSHAKESALT=\"{0}\", msbuildDirectory=\"{1}\", enableNodeReuse={2}, enableLowPriority={3}", Traits.MSBuildNodeHandshakeSalt, BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32, enableNodeReuse, enableLowPriority);

410s_baseTaskHostPath = BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32; 411s_baseTaskHostPath64 = BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64; 412s_baseTaskHostPathArm64 = BuildEnvironmentHelper.Instance.MSBuildToolsDirectoryArm64;

51MSBuildExePath = BuildEnvironmentHelper.Instance.CurrentMSBuildExePath;

33string sdkPath = Path.Combine(BuildEnvironmentHelper.Instance.MSBuildSDKsPath, sdk.Name, "Sdk");

55Path.Combine(BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32, "SdkResolvers"), location); 82Path.Combine(BuildEnvironmentHelper.Instance.MSBuildToolsDirectoryRoot, "SdkResolvers"), location);

476NativeMethodsShared.SetCurrentDirectory(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory); 710NativeMethodsShared.SetCurrentDirectory(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory);

252NativeMethodsShared.SetCurrentDirectory(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory); 426NativeMethodsShared.SetCurrentDirectory(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory);

450BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory);

112msbuildExePath = typeof(BuildEnvironmentHelper).Assembly.Location;

103string toolsDirectory = BuildEnvironmentHelper.Instance.MSBuildToolsDirectoryRoot;

269if (BuildEnvironmentHelper.Instance.Mode != BuildEnvironmentMode.None && 273!BuildEnvironmentHelper.Instance.RunningTests && 275FileSystems.Default.FileExists(BuildEnvironmentHelper.Instance.CurrentMSBuildConfigurationFile)) 277var configFile = new ExeConfigurationFileMap { ExeConfigFilename = BuildEnvironmentHelper.Instance.CurrentMSBuildConfigurationFile };

28protected override string MSBuildOverrideTasksPath => BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory; 40yield return new ToolsetPropertyDefinition(MSBuildConstants.ToolsPath, BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory, _sourceLocation); 41yield return new ToolsetPropertyDefinition(MSBuildConstants.SdksPath, BuildEnvironmentHelper.Instance.MSBuildSDKsPath, _sourceLocation); 43System.IO.Path.Combine(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory, "Roslyn"),

170var currentDir = BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory.TrimEnd(Path.DirectorySeparatorChar); 629Path.Combine(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory, trimmedValue));

784if (BuildEnvironmentHelper.Instance.RunningInVisualStudio)

661return BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory; 666return BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32; 671return BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64; 676return BuildEnvironmentHelper.Instance.MSBuildSDKsPath; 681return BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory; 691return BuildEnvironmentHelper.Instance.MSBuildExtensionsPath; 694public static bool IsRunningFromVisualStudio() => BuildEnvironmentHelper.Instance.Mode == BuildEnvironmentMode.VisualStudio;

1045DotNetFrameworkArchitecture.Bitness64 => BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64, 1046DotNetFrameworkArchitecture.Bitness32 => BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32, 1047_ => BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory,

89private static string s_potentialTasksV4Location = Path.Combine(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory, s_tasksV4Filename); 108private static string s_potentialTasksV12Location = Path.Combine(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory, s_tasksV12Filename); 127private static string s_potentialTasksCoreLocation = Path.Combine(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory, s_tasksCoreFilename);

101if (BuildEnvironmentHelper.Instance.RunningTests) 105appDomainInfo.ApplicationBase = BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory; 106appDomainInfo.ConfigurationFile = BuildEnvironmentHelper.Instance.CurrentMSBuildConfigurationFile;

203string assemblyDirectory = BuildEnvironmentHelper.Instance.Mode == BuildEnvironmentMode.VisualStudio ? 204Path.Combine(BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory, "Common7", "IDE", "CommonExtensions", "Microsoft", "NuGet") : 205BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory; 213(BuildEnvironmentHelper.Instance.RunningInMSBuildExe || BuildEnvironmentHelper.Instance.RunningInVisualStudio)) 222if (assemblyName != null && BuildEnvironmentHelper.Instance.RunningInMSBuildExe)

553localAppData = BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory;

30string configFilePath = BuildEnvironmentHelper.Instance.CurrentMSBuildConfigurationFile.ToLowerInvariant(); 31string toolsDirectoryPath = BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory.ToLowerInvariant(); 32string actualMSBuildPath = BuildEnvironmentHelper.Instance.CurrentMSBuildExePath.ToLowerInvariant(); 37BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.Standalone); 50BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(ReturnNull, ReturnNull, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 52BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory.ShouldBe(path); 53BuildEnvironmentHelper.Instance.CurrentMSBuildExePath.ShouldBe(msBuildPath); 54BuildEnvironmentHelper.Instance.CurrentMSBuildConfigurationFile.ShouldBe(msBuildConfig); 55BuildEnvironmentHelper.Instance.RunningInVisualStudio.ShouldBeFalse(); 56BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBeNull(); 57BuildEnvironmentHelper.Instance.RunningTests.ShouldBeFalse(); 58BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.Standalone); 78BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(ReturnNull, ReturnNull, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 80BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.VisualStudio); 81BuildEnvironmentHelper.Instance.MSBuildExtensionsPath.ShouldBe(vsMSBuildDirectory); 82BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory.ShouldBe(msbuildBinDirectory); 83BuildEnvironmentHelper.Instance.CurrentMSBuildExePath.ShouldBe(msBuildPath); 84BuildEnvironmentHelper.Instance.CurrentMSBuildConfigurationFile.ShouldBe(msBuildConfig); 86BuildEnvironmentHelper.Instance.RunningInVisualStudio.ShouldBeFalse(); 87BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBe(env.TempFolderRoot); 88BuildEnvironmentHelper.Instance.RunningTests.ShouldBeFalse(); 98BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(() => env.MSBuildExePath, ReturnNull, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 100BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32.ShouldBe(env.BuildDirectory); 101BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64.ShouldBe(env.BuildDirectory64); 102BuildEnvironmentHelper.Instance.RunningInVisualStudio.ShouldBeFalse(); 103BuildEnvironmentHelper.Instance.RunningTests.ShouldBeFalse(); 104BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.VisualStudio); 115BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(() => env.MSBuildExePath, ReturnNull, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 117BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32.ShouldBe(env.BuildDirectory); 118BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64.ShouldBe(env.BuildDirectory); 119BuildEnvironmentHelper.Instance.RunningInVisualStudio.ShouldBeFalse(); 120BuildEnvironmentHelper.Instance.RunningTests.ShouldBeFalse(); 121BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.Standalone); 131BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(ReturnNull, () => env.MSBuildExePath, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 133BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32.ShouldBe(env.BuildDirectory); 134BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64.ShouldBe(env.BuildDirectory64); 135BuildEnvironmentHelper.Instance.RunningInVisualStudio.ShouldBeFalse(); 136BuildEnvironmentHelper.Instance.RunningTests.ShouldBeFalse(); 137BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.VisualStudio); 148BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(ReturnNull, () => env.MSBuildExePath, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 150BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32.ShouldBe(env.BuildDirectory); 151BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64.ShouldBe(env.BuildDirectory); 152BuildEnvironmentHelper.Instance.RunningInVisualStudio.ShouldBeFalse(); 153BuildEnvironmentHelper.Instance.RunningTests.ShouldBeFalse(); 154BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.Standalone); 165BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(ReturnNull, () => env.MSBuildExePath, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 167BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32.ShouldBe(env.BuildDirectory); 168BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64.ShouldBe(env.BuildDirectory); 169BuildEnvironmentHelper.Instance.RunningInVisualStudio.ShouldBeFalse(); 170BuildEnvironmentHelper.Instance.RunningTests.ShouldBeFalse(); 171BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.Standalone); 181BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(ReturnNull, ReturnNull, () => env.BuildDirectory, env.VsInstanceMock, env.EnvironmentMock, () => false); 184Path.GetFileName(BuildEnvironmentHelper.Instance.CurrentMSBuildExePath).ShouldBe(MSBuildExeName); 186BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32.ShouldBe(env.BuildDirectory); 187BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64.ShouldBe(env.BuildDirectory); 188BuildEnvironmentHelper.Instance.RunningInVisualStudio.ShouldBeFalse(); 189BuildEnvironmentHelper.Instance.RunningTests.ShouldBeFalse(); 190BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.Standalone); 200BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(() => env.DevEnvPath, ReturnNull, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 202BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32.ShouldBe(env.BuildDirectory); 203BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64.ShouldBe(env.BuildDirectory64); 204BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBe(env.TempFolderRoot); 205BuildEnvironmentHelper.Instance.RunningInVisualStudio.ShouldBeTrue(); 206BuildEnvironmentHelper.Instance.RunningTests.ShouldBeFalse(); 207BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.VisualStudio); 220BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(ReturnNull, ReturnNull, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 224BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBe(env.TempFolderRoot); 225BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.VisualStudio); 230BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBeNull(); 231BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.None); 242BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(() => env.MSBuildExePath, ReturnNull, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 244BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBe(env.TempFolderRoot); 245BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.VisualStudio); 255BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(() => env.MSBuildExePath64, ReturnNull, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 257BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBe(env.TempFolderRoot); 258BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.VisualStudio); 274BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(ReturnNull, ReturnNull, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 278BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBe(env.TempFolderRoot); 279BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.VisualStudio); 284BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBeNull(); 285BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.None); 299BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(ReturnNull, ReturnNull, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 301BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBeNull(); 302BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.None); 309BuildEnvironmentHelper.Instance.RunningTests.ShouldBeTrue(); 310BuildEnvironmentHelper.Instance.RunningInVisualStudio.ShouldBeFalse(); 318BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(() => env.DevEnvPath, () => env.MSBuildExePath, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 320BuildEnvironmentHelper.Instance.RunningInVisualStudio.ShouldBeTrue(); 321BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBe(env.TempFolderRoot); 322BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.VisualStudio); 331BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(() => env.BlendPath, () => env.MSBuildExePath, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 333BuildEnvironmentHelper.Instance.RunningInVisualStudio.ShouldBeTrue(); 334BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBe(env.TempFolderRoot); 335BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.VisualStudio); 344BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(() => env.DevEnvPath, ReturnNull, 347BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32.ShouldBe(env.BuildDirectory); 348BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64.ShouldBe(env.BuildDirectory64); 349BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.VisualStudio); 360BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(() => msBuild64Exe, ReturnNull, ReturnNull, 363BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32.ShouldBe(env.BuildDirectory); 364BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64.ShouldBe(Path.Combine(env.BuildDirectory, "amd64")); 365BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBeNull(); 366BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.Standalone); 376BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(() => env.MSBuildExePath, ReturnNull, 379BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32.ShouldBe(env.BuildDirectory); 380BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64.ShouldBe(Path.Combine(env.BuildDirectory, "amd64")); 381BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.Standalone); 391BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(() => env.MSBuildExePath64, ReturnNull, ReturnNull, env.VsInstanceMock, env.EnvironmentMock, () => false); 393BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32.ShouldBe(env.BuildDirectory); 394BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64.ShouldBe(env.BuildDirectory64); 395BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBe(env.TempFolderRoot); 396BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.VisualStudio); 406BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(() => entryProcess, ReturnNull, ReturnNull, 409BuildEnvironmentHelper.Instance.CurrentMSBuildExePath.ShouldBe(entryProcess); 410BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory.ShouldBe(Path.GetDirectoryName(entryProcess)); 411BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBeNull(); 412BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.None); 423BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(ReturnNull, () => msBuildAssembly, ReturnNull, 426BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32.ShouldBe(env.BuildDirectory); 427BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64.ShouldBe(env.BuildDirectory64); 428BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBe(env.TempFolderRoot); 429BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.VisualStudio); 440BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(ReturnNull, () => msBuildAssembly, ReturnNull, 443BuildEnvironmentHelper.Instance.MSBuildToolsDirectory32.ShouldBe(env.BuildDirectory); 444BuildEnvironmentHelper.Instance.MSBuildToolsDirectory64.ShouldBe(env.BuildDirectory64); 445BuildEnvironmentHelper.Instance.VisualStudioInstallRootDirectory.ShouldBe(env.TempFolderRoot); 446BuildEnvironmentHelper.Instance.Mode.ShouldBe(BuildEnvironmentMode.VisualStudio); 564BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(runningTests: () => true);

35BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly();

567Directory.SetCurrentDirectory(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory);

54BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory, 551var currentBuildEnvironment = BuildEnvironmentHelper.Instance; 555BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly( 621BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(currentBuildEnvironment); 660var currentBuildEnvironment = BuildEnvironmentHelper.Instance; 673BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly( 719BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(currentBuildEnvironment); 1437var currentBuildEnvironment = BuildEnvironmentHelper.Instance; 1441BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly( 1505BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly(currentBuildEnvironment);

17private static readonly string ProjectFileFolder = Path.Combine(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory, "TaskWithDependency");

21private static readonly string ProjectFileFolder = Path.Combine(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory, "PortableTask"); 25Path.Combine(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory, "..", "..", "..", "Samples", "PortableTask")); 75string dllPath = Path.Combine(BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory, dllName);

1474BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly();

19public static string PathToCurrentlyRunningMsBuildExe => BuildEnvironmentHelper.Instance.CurrentMSBuildExePath;

104BuildEnvironmentHelper.ResetInstance_ForUnitTestsOnly();