├── Src └── UseNameOf │ ├── App.config │ ├── packages.config │ ├── Program.cs │ ├── Properties │ └── AssemblyInfo.cs │ ├── NameOfRewriter.cs │ └── UseNameOf.csproj ├── README.md ├── UseNameOf.sln ├── .gitignore └── LICENSE /Src/UseNameOf/App.config: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | UseNameOf 2 | ==== 3 | 4 | This is a tool for converting legacy CSharp code bases to use the `nameof` expression instead of string literals. 5 | 6 | **Before** 7 | 8 | ``` csharp 9 | void M(string text) 10 | { 11 | if (text == null) 12 | { 13 | throw new ArgumentNullException("text"); 14 | } 15 | ... 16 | } 17 | ``` 18 | 19 | **After** 20 | 21 | ``` csharp 22 | void M(string text) 23 | { 24 | if (text == null) 25 | { 26 | throw new ArgumentNullException(nameof(text)); 27 | } 28 | ... 29 | } 30 | ``` 31 | 32 | It will only do this transformation when it knows it is correct. Passing in bad names will not result in a conversion 33 | 34 | ``` csharp 35 | void G(int p) 36 | { 37 | // "b" isn't a parameter, won't be transformed 38 | throw new ArgumentException("b"); 39 | } 40 | ``` 41 | -------------------------------------------------------------------------------- /Src/UseNameOf/packages.config: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | -------------------------------------------------------------------------------- /UseNameOf.sln: -------------------------------------------------------------------------------- 1 | 2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio 2013 4 | VisualStudioVersion = 12.0.31101.0 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "UseNameOf", "Src\UseNameOf\UseNameOf.csproj", "{5688F3BA-04C2-4E27-B2BE-7FF43AA96465}" 7 | EndProject 8 | Global 9 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 10 | Debug|Any CPU = Debug|Any CPU 11 | Release|Any CPU = Release|Any CPU 12 | EndGlobalSection 13 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 14 | {5688F3BA-04C2-4E27-B2BE-7FF43AA96465}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 15 | {5688F3BA-04C2-4E27-B2BE-7FF43AA96465}.Debug|Any CPU.Build.0 = Debug|Any CPU 16 | {5688F3BA-04C2-4E27-B2BE-7FF43AA96465}.Release|Any CPU.ActiveCfg = Release|Any CPU 17 | {5688F3BA-04C2-4E27-B2BE-7FF43AA96465}.Release|Any CPU.Build.0 = Release|Any CPU 18 | EndGlobalSection 19 | GlobalSection(SolutionProperties) = preSolution 20 | HideSolutionNode = FALSE 21 | EndGlobalSection 22 | EndGlobal 23 | -------------------------------------------------------------------------------- /Src/UseNameOf/Program.cs: -------------------------------------------------------------------------------- 1 | using Microsoft.CodeAnalysis; 2 | using Microsoft.CodeAnalysis.CSharp; 3 | using Microsoft.CodeAnalysis.Text; 4 | using System; 5 | using System.Collections.Generic; 6 | using System.IO; 7 | using System.Linq; 8 | using System.Text; 9 | using System.Threading.Tasks; 10 | 11 | namespace UseNameOf 12 | { 13 | public static class Program 14 | { 15 | public static void Main(string[] args) 16 | { 17 | Work(args).Wait(); 18 | } 19 | 20 | private static async Task Work(string[] args) 21 | { 22 | var text = File.ReadAllText(args[0]); 23 | var workspace = new CustomWorkspace(); 24 | var project = workspace.AddProject("NameOfRewrite", LanguageNames.CSharp) 25 | .WithMetadataReferences(new[] { MetadataReference.CreateFromAssembly(typeof(object).Assembly) }); 26 | var document = project.AddDocument("Test", SourceText.From(text)); 27 | project = document.Project; 28 | 29 | var compilation = await project.GetCompilationAsync(); 30 | var argumentExceptionType = compilation.GetTypeByMetadataName("System.ArgumentException"); 31 | var root = await document.GetSyntaxRootAsync(); 32 | var rewriter = new NameOfRewriter(compilation.GetSemanticModel(root.SyntaxTree)); 33 | var node = rewriter.Visit(root); 34 | Console.WriteLine(node.ToFullString()); 35 | } 36 | } 37 | } 38 | -------------------------------------------------------------------------------- /Src/UseNameOf/Properties/AssemblyInfo.cs: -------------------------------------------------------------------------------- 1 | using System.Reflection; 2 | using System.Runtime.CompilerServices; 3 | using System.Runtime.InteropServices; 4 | 5 | // General Information about an assembly is controlled through the following 6 | // set of attributes. Change these attribute values to modify the information 7 | // associated with an assembly. 8 | [assembly: AssemblyTitle("UseNameOf")] 9 | [assembly: AssemblyDescription("")] 10 | [assembly: AssemblyConfiguration("")] 11 | [assembly: AssemblyCompany("")] 12 | [assembly: AssemblyProduct("UseNameOf")] 13 | [assembly: AssemblyCopyright("Copyright © 2015")] 14 | [assembly: AssemblyTrademark("")] 15 | [assembly: AssemblyCulture("")] 16 | 17 | // Setting ComVisible to false makes the types in this assembly not visible 18 | // to COM components. If you need to access a type in this assembly from 19 | // COM, set the ComVisible attribute to true on that type. 20 | [assembly: ComVisible(false)] 21 | 22 | // The following GUID is for the ID of the typelib if this project is exposed to COM 23 | [assembly: Guid("331f126a-d1fb-4758-b40d-f95733cc1d5a")] 24 | 25 | // Version information for an assembly consists of the following four values: 26 | // 27 | // Major Version 28 | // Minor Version 29 | // Build Number 30 | // Revision 31 | // 32 | // You can specify all the values or you can default the Build and Revision Numbers 33 | // by using the '*' as shown below: 34 | // [assembly: AssemblyVersion("1.0.*")] 35 | [assembly: AssemblyVersion("1.0.0.0")] 36 | [assembly: AssemblyFileVersion("1.0.0.0")] 37 | -------------------------------------------------------------------------------- /Src/UseNameOf/NameOfRewriter.cs: -------------------------------------------------------------------------------- 1 | using Microsoft.CodeAnalysis; 2 | using Microsoft.CodeAnalysis.CSharp; 3 | using Microsoft.CodeAnalysis.CSharp.Syntax; 4 | using System; 5 | using System.Collections.Generic; 6 | using System.Linq; 7 | using System.Text; 8 | using System.Threading.Tasks; 9 | 10 | namespace UseNameOf 11 | { 12 | internal sealed class NameOfRewriter : CSharpSyntaxRewriter 13 | { 14 | private readonly SemanticModel _semanticModel; 15 | private readonly ITypeSymbol _argumentExceptionType; 16 | private readonly Dictionary _map = new Dictionary(); 17 | 18 | internal NameOfRewriter(SemanticModel semanticModel) 19 | { 20 | _semanticModel = semanticModel; 21 | _argumentExceptionType = semanticModel.Compilation.GetTypeByMetadataName("System.ArgumentException"); 22 | } 23 | 24 | public override SyntaxNode VisitLiteralExpression(LiteralExpressionSyntax node) 25 | { 26 | NameOfExpressionSyntax nameOfExpr; 27 | if (_map.TryGetValue(node, out nameOfExpr)) 28 | { 29 | return nameOfExpr; 30 | } 31 | 32 | return base.VisitLiteralExpression(node); 33 | } 34 | 35 | /// 36 | /// Rewrite any creation of an which uses a string literal 37 | /// that maps to a parameter name to use nameof for that parameter instead. 38 | /// 39 | public override SyntaxNode VisitObjectCreationExpression(ObjectCreationExpressionSyntax node) 40 | { 41 | if (!IsArgumentExceptionType(node.Type)) 42 | { 43 | return base.VisitObjectCreationExpression(node); 44 | } 45 | 46 | var arguments = node.ArgumentList.Arguments; 47 | if (arguments.Count == 0) 48 | { 49 | return base.VisitObjectCreationExpression(node); 50 | } 51 | 52 | var expr = arguments[0].Expression; 53 | if (expr == null || expr.CSharpKind() != SyntaxKind.StringLiteralExpression) 54 | { 55 | return base.VisitObjectCreationExpression(node); 56 | } 57 | 58 | var stringExpr = (LiteralExpressionSyntax)expr; 59 | var position = stringExpr.GetLocation().SourceSpan.Start; 60 | var identExpr = SyntaxFactory.IdentifierName(stringExpr.Token.ValueText); 61 | var symbolInfo = _semanticModel.GetSpeculativeSymbolInfo(position, identExpr, SpeculativeBindingOption.BindAsExpression); 62 | if (symbolInfo.Symbol != null && symbolInfo.Symbol.Kind == SymbolKind.Parameter) 63 | { 64 | _map[stringExpr] = SyntaxFactory.NameOfExpression( 65 | SyntaxFactory.IdentifierName("nameof"), 66 | identExpr); 67 | } 68 | 69 | return base.VisitObjectCreationExpression(node); 70 | } 71 | 72 | private bool IsArgumentExceptionType(TypeSyntax typeSyntax) 73 | { 74 | var conversion = _semanticModel.ClassifyConversion(typeSyntax, _argumentExceptionType); 75 | return conversion.IsReference && conversion.IsImplicit; 76 | } 77 | } 78 | } 79 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | 4 | # User-specific files 5 | *.suo 6 | *.user 7 | *.sln.docstates 8 | 9 | # Build results 10 | [Dd]ebug/ 11 | [Dd]ebugPublic/ 12 | [Rr]elease/ 13 | [Rr]eleases/ 14 | x64/ 15 | x86/ 16 | build/ 17 | bld/ 18 | [Bb]in/ 19 | [Oo]bj/ 20 | 21 | # Roslyn cache directories 22 | *.ide/ 23 | 24 | # MSTest test Results 25 | [Tt]est[Rr]esult*/ 26 | [Bb]uild[Ll]og.* 27 | 28 | #NUNIT 29 | *.VisualState.xml 30 | TestResult.xml 31 | 32 | # Build Results of an ATL Project 33 | [Dd]ebugPS/ 34 | [Rr]eleasePS/ 35 | dlldata.c 36 | 37 | *_i.c 38 | *_p.c 39 | *_i.h 40 | *.ilk 41 | *.meta 42 | *.obj 43 | *.pch 44 | *.pdb 45 | *.pgc 46 | *.pgd 47 | *.rsp 48 | *.sbr 49 | *.tlb 50 | *.tli 51 | *.tlh 52 | *.tmp 53 | *.tmp_proj 54 | *.log 55 | *.vspscc 56 | *.vssscc 57 | .builds 58 | *.pidb 59 | *.svclog 60 | *.scc 61 | 62 | # Chutzpah Test files 63 | _Chutzpah* 64 | 65 | # Visual C++ cache files 66 | ipch/ 67 | *.aps 68 | *.ncb 69 | *.opensdf 70 | *.sdf 71 | *.cachefile 72 | 73 | # Visual Studio profiler 74 | *.psess 75 | *.vsp 76 | *.vspx 77 | 78 | # TFS 2012 Local Workspace 79 | $tf/ 80 | 81 | # Guidance Automation Toolkit 82 | *.gpState 83 | 84 | # ReSharper is a .NET coding add-in 85 | _ReSharper*/ 86 | *.[Rr]e[Ss]harper 87 | *.DotSettings.user 88 | 89 | # JustCode is a .NET coding addin-in 90 | .JustCode 91 | 92 | # TeamCity is a build add-in 93 | _TeamCity* 94 | 95 | # DotCover is a Code Coverage Tool 96 | *.dotCover 97 | 98 | # NCrunch 99 | _NCrunch_* 100 | .*crunch*.local.xml 101 | 102 | # MightyMoose 103 | *.mm.* 104 | AutoTest.Net/ 105 | 106 | # Web workbench (sass) 107 | .sass-cache/ 108 | 109 | # Installshield output folder 110 | [Ee]xpress/ 111 | 112 | # DocProject is a documentation generator add-in 113 | DocProject/buildhelp/ 114 | DocProject/Help/*.HxT 115 | DocProject/Help/*.HxC 116 | DocProject/Help/*.hhc 117 | DocProject/Help/*.hhk 118 | DocProject/Help/*.hhp 119 | DocProject/Help/Html2 120 | DocProject/Help/html 121 | 122 | # Click-Once directory 123 | publish/ 124 | 125 | # Publish Web Output 126 | *.[Pp]ublish.xml 127 | *.azurePubxml 128 | # TODO: Comment the next line if you want to checkin your web deploy settings 129 | # but database connection strings (with potential passwords) will be unencrypted 130 | *.pubxml 131 | *.publishproj 132 | 133 | # NuGet Packages 134 | *.nupkg 135 | # The packages folder can be ignored because of Package Restore 136 | **/packages/* 137 | # except build/, which is used as an MSBuild target. 138 | !**/packages/build/ 139 | # If using the old MSBuild-Integrated Package Restore, uncomment this: 140 | #!**/packages/repositories.config 141 | 142 | # Windows Azure Build Output 143 | csx/ 144 | *.build.csdef 145 | 146 | # Windows Store app package directory 147 | AppPackages/ 148 | 149 | # Others 150 | sql/ 151 | *.Cache 152 | ClientBin/ 153 | [Ss]tyle[Cc]op.* 154 | ~$* 155 | *~ 156 | *.dbmdl 157 | *.dbproj.schemaview 158 | *.pfx 159 | *.publishsettings 160 | node_modules/ 161 | 162 | # RIA/Silverlight projects 163 | Generated_Code/ 164 | 165 | # Backup & report files from converting an old project file 166 | # to a newer Visual Studio version. Backup files are not needed, 167 | # because we have git ;-) 168 | _UpgradeReport_Files/ 169 | Backup*/ 170 | UpgradeLog*.XML 171 | UpgradeLog*.htm 172 | 173 | # SQL Server files 174 | *.mdf 175 | *.ldf 176 | 177 | # Business Intelligence projects 178 | *.rdl.data 179 | *.bim.layout 180 | *.bim_*.settings 181 | 182 | # Microsoft Fakes 183 | FakesAssemblies/ 184 | -------------------------------------------------------------------------------- /Src/UseNameOf/UseNameOf.csproj: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | Debug 6 | AnyCPU 7 | {5688F3BA-04C2-4E27-B2BE-7FF43AA96465} 8 | Exe 9 | Properties 10 | UseNameOf 11 | UseNameOf 12 | v4.5 13 | 512 14 | 15 | 16 | AnyCPU 17 | true 18 | full 19 | false 20 | bin\Debug\ 21 | DEBUG;TRACE 22 | prompt 23 | 4 24 | 25 | 26 | AnyCPU 27 | pdbonly 28 | true 29 | bin\Release\ 30 | TRACE 31 | prompt 32 | 4 33 | 34 | 35 | 36 | ..\..\packages\Microsoft.CodeAnalysis.Common.1.0.0-beta1-20141031-01\lib\net45\Microsoft.CodeAnalysis.dll 37 | 38 | 39 | ..\..\packages\Microsoft.CodeAnalysis.CSharp.1.0.0-beta1-20141031-01\lib\net45\Microsoft.CodeAnalysis.CSharp.dll 40 | 41 | 42 | ..\..\packages\Microsoft.CodeAnalysis.CSharp.1.0.0-beta1-20141031-01\lib\net45\Microsoft.CodeAnalysis.CSharp.Desktop.dll 43 | 44 | 45 | ..\..\packages\Microsoft.CodeAnalysis.CSharp.Workspaces.1.0.0-beta1-20141031-01\lib\net45\Microsoft.CodeAnalysis.CSharp.Workspaces.dll 46 | 47 | 48 | ..\..\packages\Microsoft.CodeAnalysis.CSharp.Workspaces.1.0.0-beta1-20141031-01\lib\net45\Microsoft.CodeAnalysis.CSharp.Workspaces.Desktop.dll 49 | 50 | 51 | ..\..\packages\Microsoft.CodeAnalysis.Common.1.0.0-beta1-20141031-01\lib\net45\Microsoft.CodeAnalysis.Desktop.dll 52 | 53 | 54 | ..\..\packages\Microsoft.CodeAnalysis.Workspaces.Common.1.0.0-beta1-20141031-01\lib\net45\Microsoft.CodeAnalysis.Workspaces.dll 55 | 56 | 57 | ..\..\packages\Microsoft.CodeAnalysis.Workspaces.Common.1.0.0-beta1-20141031-01\lib\net45\Microsoft.CodeAnalysis.Workspaces.Desktop.dll 58 | 59 | 60 | 61 | ..\..\packages\System.Collections.Immutable.1.1.32-beta\lib\portable-net45+win8+wp8+wpa81\System.Collections.Immutable.dll 62 | 63 | 64 | ..\..\packages\Microsoft.Composition.1.0.27\lib\portable-net45+win8+wp8+wpa81\System.Composition.AttributedModel.dll 65 | 66 | 67 | ..\..\packages\Microsoft.Composition.1.0.27\lib\portable-net45+win8+wp8+wpa81\System.Composition.Convention.dll 68 | 69 | 70 | ..\..\packages\Microsoft.Composition.1.0.27\lib\portable-net45+win8+wp8+wpa81\System.Composition.Hosting.dll 71 | 72 | 73 | ..\..\packages\Microsoft.Composition.1.0.27\lib\portable-net45+win8+wp8+wpa81\System.Composition.Runtime.dll 74 | 75 | 76 | ..\..\packages\Microsoft.Composition.1.0.27\lib\portable-net45+win8+wp8+wpa81\System.Composition.TypedParts.dll 77 | 78 | 79 | 80 | ..\..\packages\System.Reflection.Metadata.1.0.17-beta\lib\portable-net45+win8\System.Reflection.Metadata.dll 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 105 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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