Generate partial class and assign destination properties based on an attribute.
This commit is contained in:
Mohammadreza Taikandi
commit
f607df6312
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@ -0,0 +1,442 @@
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##
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||||
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# Icon must end with two \r
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||||
##
|
||||
## Visual Studio Code
|
||||
##
|
||||
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|
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||||
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|
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Microsoft Visual Studio Solution File, Format Version 12.00
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||||
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MapTo", "MapTo\MapTo.csproj", "{4DB371AC-48D0-4F01-8EF3-7707D06EF0A7}"
|
||||
EndProject
|
||||
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MapToTests", "MapToTests\MapToTests.csproj", "{797DA57B-AC7E-468B-8799-44C5A574C0E3}"
|
||||
EndProject
|
||||
Global
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||||
GlobalSection(SolutionConfigurationPlatforms) = preSolution
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||||
Debug|Any CPU = Debug|Any CPU
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||||
Release|Any CPU = Release|Any CPU
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||||
EndGlobalSection
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||||
GlobalSection(ProjectConfigurationPlatforms) = postSolution
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||||
{4DB371AC-48D0-4F01-8EF3-7707D06EF0A7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
|
||||
{4DB371AC-48D0-4F01-8EF3-7707D06EF0A7}.Debug|Any CPU.Build.0 = Debug|Any CPU
|
||||
{4DB371AC-48D0-4F01-8EF3-7707D06EF0A7}.Release|Any CPU.ActiveCfg = Release|Any CPU
|
||||
{4DB371AC-48D0-4F01-8EF3-7707D06EF0A7}.Release|Any CPU.Build.0 = Release|Any CPU
|
||||
{797DA57B-AC7E-468B-8799-44C5A574C0E3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
|
||||
{797DA57B-AC7E-468B-8799-44C5A574C0E3}.Debug|Any CPU.Build.0 = Debug|Any CPU
|
||||
{797DA57B-AC7E-468B-8799-44C5A574C0E3}.Release|Any CPU.ActiveCfg = Release|Any CPU
|
||||
{797DA57B-AC7E-468B-8799-44C5A574C0E3}.Release|Any CPU.Build.0 = Release|Any CPU
|
||||
EndGlobalSection
|
||||
EndGlobal
|
||||
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|
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|||
<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
|
||||
<s:Boolean x:Key="/Default/UserDictionary/Words/=Mapto/@EntryIndexedValue">True</s:Boolean>
|
||||
<s:Boolean x:Key="/Default/UserDictionary/Words/=Usings/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>
|
||||
|
|
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|||
// ReSharper disable UnusedType.Global
|
||||
// ReSharper disable CheckNamespace
|
||||
// Licensed to the .NET Foundation under one or more agreements.
|
||||
// The .NET Foundation licenses this file to you under the MIT license.
|
||||
|
||||
using System.ComponentModel;
|
||||
|
||||
namespace System.Runtime.CompilerServices
|
||||
{
|
||||
/// <summary>
|
||||
/// Reserved to be used by the compiler for tracking metadata.
|
||||
/// This class should not be used by developers in source code.
|
||||
/// </summary>
|
||||
[EditorBrowsable(EditorBrowsableState.Never)]
|
||||
internal static class IsExternalInit
|
||||
{
|
||||
}
|
||||
}
|
||||
|
|
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|
|||
using System.Collections.Generic;
|
||||
using System.Linq;
|
||||
using Microsoft.CodeAnalysis;
|
||||
using Microsoft.CodeAnalysis.CSharp.Syntax;
|
||||
|
||||
namespace MapTo.Extensions
|
||||
{
|
||||
internal static class RoslynExtensions
|
||||
{
|
||||
public static IEnumerable<ITypeSymbol> GetBaseTypesAndThis(this ITypeSymbol type)
|
||||
{
|
||||
var current = type;
|
||||
while (current != null)
|
||||
{
|
||||
yield return current;
|
||||
|
||||
current = current.BaseType;
|
||||
}
|
||||
}
|
||||
|
||||
public static IEnumerable<ISymbol> GetAllMembers(this ITypeSymbol type)
|
||||
{
|
||||
return type.GetBaseTypesAndThis().SelectMany(n => n.GetMembers());
|
||||
}
|
||||
|
||||
public static IEnumerable<T> GetAllMembersOfType<T>(this ITypeSymbol type) where T : ISymbol
|
||||
{
|
||||
return type.GetAllMembers().OfType<T>();
|
||||
}
|
||||
|
||||
public static CompilationUnitSyntax? GetCompilationUnit(this SyntaxNode syntaxNode)
|
||||
{
|
||||
return syntaxNode.Ancestors().OfType<CompilationUnitSyntax>().FirstOrDefault();
|
||||
}
|
||||
|
||||
public static string GetClassName(this ClassDeclarationSyntax classSyntax)
|
||||
{
|
||||
return classSyntax.Identifier.Text;
|
||||
}
|
||||
|
||||
public static string GetClassModifier(this ClassDeclarationSyntax classSyntax)
|
||||
{
|
||||
return classSyntax.Modifiers.ToFullString().Trim();
|
||||
}
|
||||
|
||||
public static bool HaveAttribute(this ClassDeclarationSyntax classSyntax, string attributeName)
|
||||
{
|
||||
return classSyntax.AttributeLists.Count > 0 &&
|
||||
classSyntax.AttributeLists.SelectMany(al => al.Attributes
|
||||
.Where(a =>
|
||||
(a.Name as IdentifierNameSyntax)?.Identifier.Text == attributeName ||
|
||||
((a.Name as QualifiedNameSyntax)?.Right as IdentifierNameSyntax)?.Identifier.ValueText == attributeName))
|
||||
.Any();
|
||||
}
|
||||
|
||||
public static AttributeSyntax? GetAttribute(this ClassDeclarationSyntax classSyntax, string attributeName)
|
||||
{
|
||||
return classSyntax.AttributeLists
|
||||
.SelectMany(al => al.Attributes)
|
||||
.SingleOrDefault(a =>
|
||||
(a.Name as IdentifierNameSyntax)?.Identifier.ValueText == attributeName ||
|
||||
((a.Name as QualifiedNameSyntax)?.Right as IdentifierNameSyntax)?.Identifier.ValueText == attributeName);
|
||||
}
|
||||
|
||||
public static string? GetNamespace(this CompilationUnitSyntax root)
|
||||
{
|
||||
return root.ChildNodes()
|
||||
.OfType<NamespaceDeclarationSyntax>()
|
||||
.FirstOrDefault()
|
||||
?.Name
|
||||
.ToString();
|
||||
}
|
||||
|
||||
public static List<string> GetUsings(this CompilationUnitSyntax root)
|
||||
{
|
||||
return root.ChildNodes()
|
||||
.OfType<UsingDirectiveSyntax>()
|
||||
.Select(n => n.Name.ToString())
|
||||
.ToList();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,10 @@
|
|||
namespace MapTo.Extensions
|
||||
{
|
||||
internal static class StringExtensions
|
||||
{
|
||||
public static string ToCamelCase(this string value)
|
||||
{
|
||||
return string.IsNullOrWhiteSpace(value) ? value : $"{char.ToLower(value[0])}{value.Substring(1)}";
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,84 @@
|
|||
using System.Collections.Generic;
|
||||
using System.Linq;
|
||||
using MapTo.Extensions;
|
||||
using MapTo.Models;
|
||||
using Microsoft.CodeAnalysis;
|
||||
using Microsoft.CodeAnalysis.CSharp.Syntax;
|
||||
|
||||
namespace MapTo
|
||||
{
|
||||
public class MapToGenerator : ISourceGenerator
|
||||
{
|
||||
/// <inheritdoc />
|
||||
public void Initialize(GeneratorInitializationContext context)
|
||||
{
|
||||
context.RegisterForSyntaxNotifications(() => new MapToSyntaxReceiver());
|
||||
}
|
||||
|
||||
/// <inheritdoc />
|
||||
public void Execute(GeneratorExecutionContext context)
|
||||
{
|
||||
context.AddMapToAttribute();
|
||||
|
||||
if (!(context.SyntaxReceiver is MapToSyntaxReceiver receiver) || !receiver.CandidateClasses.Any())
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
foreach (var (classDeclarationSyntax, attributeSyntax) in receiver.CandidateClasses)
|
||||
{
|
||||
var model = GetModel(context.Compilation, classDeclarationSyntax);
|
||||
if (model is null)
|
||||
{
|
||||
// TODO: Emit diagnostic info.
|
||||
continue;
|
||||
}
|
||||
|
||||
var (source, hintName) = SourceProvider.GenerateSource(model);
|
||||
|
||||
context.AddSource(hintName, source);
|
||||
}
|
||||
}
|
||||
|
||||
private static MapModel? GetModel(Compilation compilation, ClassDeclarationSyntax classSyntax)
|
||||
{
|
||||
var root = classSyntax.GetCompilationUnit();
|
||||
if (root is null)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
|
||||
var classSemanticModel = compilation.GetSemanticModel(classSyntax.SyntaxTree);
|
||||
|
||||
if (!(classSemanticModel.GetDeclaredSymbol(classSyntax) is INamedTypeSymbol classSymbol))
|
||||
{
|
||||
return null;
|
||||
}
|
||||
|
||||
var destinationTypeSymbol = GetDestinationTypeSymbol(classSyntax, classSemanticModel);
|
||||
if (destinationTypeSymbol is null)
|
||||
{
|
||||
return null;
|
||||
}
|
||||
|
||||
return new MapModel(
|
||||
ns: root.GetNamespace(),
|
||||
classModifiers: classSyntax.GetClassModifier(),
|
||||
className: classSyntax.GetClassName(),
|
||||
properties: classSymbol.GetAllMembersOfType<IPropertySymbol>(),
|
||||
destinationClassName: destinationTypeSymbol.Name,
|
||||
destinationTypeProperties: destinationTypeSymbol.GetAllMembersOfType<IPropertySymbol>());
|
||||
}
|
||||
|
||||
private static ITypeSymbol? GetDestinationTypeSymbol(ClassDeclarationSyntax classSyntax, SemanticModel model)
|
||||
{
|
||||
var destinationTypeExpressionSyntax = classSyntax
|
||||
.GetAttribute(SourceProvider.MapFromAttributeName)
|
||||
?.DescendantNodes()
|
||||
.OfType<TypeOfExpressionSyntax>()
|
||||
.SingleOrDefault();
|
||||
|
||||
return destinationTypeExpressionSyntax is not null ? model.GetTypeInfo(destinationTypeExpressionSyntax.Type).Type : null;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,38 @@
|
|||
using System.Collections.Generic;
|
||||
using System.Linq;
|
||||
using Microsoft.CodeAnalysis;
|
||||
using Microsoft.CodeAnalysis.CSharp.Syntax;
|
||||
|
||||
namespace MapTo
|
||||
{
|
||||
internal class MapToSyntaxReceiver : ISyntaxReceiver
|
||||
{
|
||||
public List<(ClassDeclarationSyntax classDeclarationSyntax, AttributeSyntax attributeSyntax)> CandidateClasses { get; } = new();
|
||||
|
||||
/// <inheritdoc />
|
||||
public void OnVisitSyntaxNode(SyntaxNode syntaxNode)
|
||||
{
|
||||
if (syntaxNode is not ClassDeclarationSyntax { AttributeLists: { Count: >= 1 } attributes } classDeclaration)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
var attributeSyntax = attributes
|
||||
.SelectMany(a => a.Attributes)
|
||||
.SingleOrDefault(a => a.Name is
|
||||
IdentifierNameSyntax { Identifier: { ValueText: SourceProvider.MapFromAttributeName } } // For: [MapFrom]
|
||||
or
|
||||
QualifiedNameSyntax // For: [MapTo.MapFrom]
|
||||
{
|
||||
Left: IdentifierNameSyntax { Identifier: { ValueText: SourceProvider.NamespaceName } },
|
||||
Right: IdentifierNameSyntax { Identifier: { ValueText: SourceProvider.MapFromAttributeName } }
|
||||
}
|
||||
);
|
||||
|
||||
if (attributeSyntax is not null)
|
||||
{
|
||||
CandidateClasses.Add((classDeclaration, attributeSyntax));
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,17 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<TargetFramework>netstandard2.0</TargetFramework>
|
||||
<LangVersion>9</LangVersion>
|
||||
<Nullable>enable</Nullable>
|
||||
</PropertyGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.1">
|
||||
<PrivateAssets>all</PrivateAssets>
|
||||
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
|
||||
</PackageReference>
|
||||
<PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="3.8.0" />
|
||||
</ItemGroup>
|
||||
|
||||
</Project>
|
||||
|
|
@ -0,0 +1,33 @@
|
|||
using System.Collections.Generic;
|
||||
using System.Linq;
|
||||
using Microsoft.CodeAnalysis;
|
||||
|
||||
namespace MapTo.Models
|
||||
{
|
||||
public class MapModel
|
||||
{
|
||||
public MapModel(string? ns, string classModifiers, string className, IEnumerable<IPropertySymbol> properties, string destinationClassName, IEnumerable<IPropertySymbol> destinationTypeProperties)
|
||||
{
|
||||
Namespace = ns;
|
||||
ClassModifiers = classModifiers;
|
||||
ClassName = className;
|
||||
Properties = properties;
|
||||
DestinationClassName = destinationClassName;
|
||||
DestinationTypeProperties = destinationTypeProperties;
|
||||
}
|
||||
|
||||
public string? Namespace { get; }
|
||||
|
||||
public string ClassModifiers { get; }
|
||||
|
||||
public string ClassName { get; }
|
||||
|
||||
public IEnumerable<IPropertySymbol> Properties { get; }
|
||||
|
||||
public string DestinationClassName { get; }
|
||||
|
||||
public IEnumerable<IPropertySymbol> DestinationTypeProperties { get; }
|
||||
|
||||
public bool IsEmpty => !Properties.Any() || !DestinationTypeProperties.Any();
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,134 @@
|
|||
using System;
|
||||
using System.Collections.Generic;
|
||||
using System.Linq;
|
||||
using System.Text;
|
||||
using MapTo.Extensions;
|
||||
using MapTo.Models;
|
||||
using Microsoft.CodeAnalysis;
|
||||
using Microsoft.CodeAnalysis.CSharp.Syntax;
|
||||
using Microsoft.CodeAnalysis.Text;
|
||||
|
||||
namespace MapTo
|
||||
{
|
||||
internal static class SourceProvider
|
||||
{
|
||||
internal const string NamespaceName = "MapTo";
|
||||
internal const string MapFromAttributeName = "MapFrom";
|
||||
private const int Indent1 = 4; //" ";
|
||||
private const int Indent2 = Indent1 * 2; // " ";
|
||||
private const int Indent3 = Indent1 * 3; // " ";
|
||||
|
||||
internal static void AddMapToAttribute(this GeneratorExecutionContext context)
|
||||
{
|
||||
const string source = @"
|
||||
using System;
|
||||
|
||||
namespace MapTo
|
||||
{
|
||||
[AttributeUsage(AttributeTargets.Class, Inherited = false, AllowMultiple = false)]
|
||||
public sealed class MapFromAttribute : Attribute
|
||||
{
|
||||
public MapFromAttribute(Type sourceType)
|
||||
{
|
||||
SourceType = sourceType;
|
||||
}
|
||||
|
||||
public Type SourceType { get; }
|
||||
}
|
||||
}
|
||||
";
|
||||
|
||||
context.AddSource("MapFromAttribute", SourceText.From(source, Encoding.UTF8));
|
||||
}
|
||||
|
||||
internal static (string source, string hintName) GenerateSource(MapModel model)
|
||||
{
|
||||
var builder = new StringBuilder();
|
||||
|
||||
// Namespace declaration
|
||||
builder
|
||||
.AppendFileHeader()
|
||||
.AppendFormat("namespace {0}", model.Namespace)
|
||||
.AppendOpeningBracket();
|
||||
|
||||
// Class declaration
|
||||
builder
|
||||
.PadLeft(Indent1)
|
||||
.AppendFormat("{0} class {1}", model.ClassModifiers, model.ClassName)
|
||||
.AppendOpeningBracket(Indent1);
|
||||
|
||||
// Constructor declaration
|
||||
builder.GenerateConstructor(model, out var mappedProperties);
|
||||
|
||||
// End class declaration
|
||||
builder.AppendClosingBracket(Indent1);
|
||||
|
||||
// End namespace declaration
|
||||
builder.AppendClosingBracket();
|
||||
|
||||
return (builder.ToString(), $"{model.ClassName}.cs");
|
||||
}
|
||||
|
||||
private static StringBuilder GenerateConstructor(this StringBuilder builder, MapModel model, out List<IPropertySymbol> mappedProperties)
|
||||
{
|
||||
var destinationClassParameterName = model.DestinationClassName.ToCamelCase();
|
||||
|
||||
builder
|
||||
.PadLeft(Indent2)
|
||||
.AppendFormat("public {0}({1} {2})", model.ClassName, model.DestinationClassName, destinationClassParameterName)
|
||||
.AppendOpeningBracket(Indent2);
|
||||
|
||||
mappedProperties = new List<IPropertySymbol>();
|
||||
foreach (var propertySymbol in model.DestinationTypeProperties)
|
||||
{
|
||||
if (model.Properties.Any(p => p.Name == propertySymbol.Name))
|
||||
{
|
||||
mappedProperties.Add(propertySymbol);
|
||||
builder
|
||||
.PadLeft(Indent3)
|
||||
.AppendFormat("{0} = {1}.{2};{3}", propertySymbol.Name, destinationClassParameterName, propertySymbol.Name, Environment.NewLine);
|
||||
}
|
||||
}
|
||||
|
||||
// End constructor declaration
|
||||
return builder.AppendClosingBracket(Indent2, padNewLine: false);
|
||||
}
|
||||
|
||||
private static StringBuilder AppendOpeningBracket(this StringBuilder builder, int indent = 0)
|
||||
{
|
||||
return builder.AppendLine().PadLeft(indent).AppendFormat("{{{0}", Environment.NewLine);
|
||||
}
|
||||
|
||||
private static StringBuilder AppendClosingBracket(this StringBuilder builder, int indent = 0, bool padNewLine = true)
|
||||
{
|
||||
if (padNewLine)
|
||||
{
|
||||
builder.AppendLine();
|
||||
}
|
||||
|
||||
return builder.PadLeft(indent).Append("}");
|
||||
}
|
||||
|
||||
private static StringBuilder PadLeft(this StringBuilder builder, int width)
|
||||
{
|
||||
for (var i = 0; i < width; i++)
|
||||
{
|
||||
builder.Append(" ");
|
||||
}
|
||||
|
||||
return builder;
|
||||
}
|
||||
|
||||
private static StringBuilder AppendFileHeader(this StringBuilder builder)
|
||||
{
|
||||
return builder
|
||||
.AppendLine("// <auto-generated />")
|
||||
.AppendLine();
|
||||
}
|
||||
|
||||
private static string GetValueText(this NameSyntax? nameSyntax)
|
||||
{
|
||||
return (nameSyntax as IdentifierNameSyntax)?.Identifier.ValueText ?? string.Empty;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,51 @@
|
|||
using System;
|
||||
using System.Collections.Immutable;
|
||||
using System.Linq;
|
||||
using MapTo;
|
||||
using Microsoft.CodeAnalysis;
|
||||
using Microsoft.CodeAnalysis.CSharp;
|
||||
using Xunit;
|
||||
using Xunit.Abstractions;
|
||||
|
||||
namespace MapToTests
|
||||
{
|
||||
internal static class CSharpGenerator
|
||||
{
|
||||
internal static string GetGeneratedOutput(this ITestOutputHelper outputHelper, string source)
|
||||
{
|
||||
var (compilation, diagnostics) = GetOutputCompilation(source);
|
||||
diagnostics.ShouldBeSuccessful();
|
||||
|
||||
var generatedOutput = compilation.SyntaxTrees.Last().ToString();
|
||||
outputHelper.WriteLine(generatedOutput);
|
||||
|
||||
return generatedOutput;
|
||||
}
|
||||
|
||||
internal static void ShouldBeSuccessful(this ImmutableArray<Diagnostic> diagnostics)
|
||||
{
|
||||
Assert.False(diagnostics.Any(d => d.Severity >= DiagnosticSeverity.Warning), $"Failed: {diagnostics.FirstOrDefault()?.GetMessage()}");
|
||||
}
|
||||
|
||||
internal static (Compilation compilation, ImmutableArray<Diagnostic> diagnostics) GetOutputCompilation(string source)
|
||||
{
|
||||
var syntaxTree = CSharpSyntaxTree.ParseText(source);
|
||||
var references = AppDomain.CurrentDomain.GetAssemblies()
|
||||
.Where(a => !a.IsDynamic && !string.IsNullOrWhiteSpace(a.Location))
|
||||
.Select(a => MetadataReference.CreateFromFile(a.Location))
|
||||
.ToList();
|
||||
|
||||
var compilation = CSharpCompilation.Create("foo", new[] { syntaxTree }, references, new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary));
|
||||
|
||||
// NB: Uncomment this line if you want to fail tests when the injected program isn't valid _before_ running generators
|
||||
// var compileDiagnostics = compilation.GetDiagnostics();
|
||||
// Assert.False(compileDiagnostics.Any(d => d.Severity == DiagnosticSeverity.Error), "Failed: " + compileDiagnostics.FirstOrDefault()?.GetMessage());
|
||||
|
||||
ISourceGenerator generator = new MapToGenerator();
|
||||
var driver = CSharpGeneratorDriver.Create(generator);
|
||||
driver.RunGeneratorsAndUpdateCompilation(compilation, out var outputCompilation, out var generateDiagnostics);
|
||||
|
||||
return (outputCompilation, generateDiagnostics);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,35 @@
|
|||
<Project Sdk="Microsoft.NET.Sdk">
|
||||
|
||||
<PropertyGroup>
|
||||
<TargetFramework>net5.0</TargetFramework>
|
||||
|
||||
<IsPackable>false</IsPackable>
|
||||
</PropertyGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.1">
|
||||
<PrivateAssets>all</PrivateAssets>
|
||||
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
|
||||
</PackageReference>
|
||||
<PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="3.8.0" />
|
||||
</ItemGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.7.1" />
|
||||
<PackageReference Include="Shouldly" Version="4.0.1" />
|
||||
<PackageReference Include="xunit" Version="2.4.1" />
|
||||
<PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
|
||||
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
|
||||
<PrivateAssets>all</PrivateAssets>
|
||||
</PackageReference>
|
||||
<PackageReference Include="coverlet.collector" Version="1.3.0">
|
||||
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
|
||||
<PrivateAssets>all</PrivateAssets>
|
||||
</PackageReference>
|
||||
</ItemGroup>
|
||||
|
||||
<ItemGroup>
|
||||
<ProjectReference Include="..\MapTo\MapTo.csproj" />
|
||||
</ItemGroup>
|
||||
|
||||
</Project>
|
||||
|
|
@ -0,0 +1,200 @@
|
|||
using System.Linq;
|
||||
using Shouldly;
|
||||
using Xunit;
|
||||
using Xunit.Abstractions;
|
||||
|
||||
namespace MapToTests
|
||||
{
|
||||
public class Tests
|
||||
{
|
||||
private readonly ITestOutputHelper _output;
|
||||
private const string ExpectedAttribute = @"
|
||||
using System;
|
||||
|
||||
namespace MapTo
|
||||
{
|
||||
[AttributeUsage(AttributeTargets.Class, Inherited = false, AllowMultiple = false)]
|
||||
public sealed class MapFromAttribute : Attribute
|
||||
{
|
||||
public MapFromAttribute(Type sourceType)
|
||||
{
|
||||
SourceType = sourceType;
|
||||
}
|
||||
|
||||
public Type SourceType { get; }
|
||||
}
|
||||
}
|
||||
";
|
||||
|
||||
public Tests(ITestOutputHelper output)
|
||||
{
|
||||
_output = output;
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void VerifyMapToAttribute()
|
||||
{
|
||||
// Arrange
|
||||
const string source = "";
|
||||
|
||||
// Act
|
||||
var (compilation, diagnostics) = CSharpGenerator.GetOutputCompilation(source);
|
||||
|
||||
// Assert
|
||||
diagnostics.ShouldBeSuccessful();
|
||||
compilation.SyntaxTrees.ShouldContain(c => c.ToString() == ExpectedAttribute);
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void When_NoMapToAttributeFound_Should_GenerateOnlyTheAttribute()
|
||||
{
|
||||
// Arrange
|
||||
const string source = "";
|
||||
|
||||
// Act
|
||||
var (compilation, diagnostics) = CSharpGenerator.GetOutputCompilation(source);
|
||||
|
||||
// Assert
|
||||
diagnostics.ShouldBeSuccessful();
|
||||
compilation.SyntaxTrees.ShouldContain(s => s.ToString() == ExpectedAttribute);
|
||||
compilation.SyntaxTrees.Select(s => s.ToString()).Where(s => s != string.Empty && s != ExpectedAttribute).ShouldBeEmpty();
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void When_MapToAttributeFound_Should_GenerateTheClass()
|
||||
{
|
||||
// Arrange
|
||||
const string source = @"
|
||||
namespace Test
|
||||
{
|
||||
[MapFrom(typeof(Baz)]
|
||||
public partial class Foo
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
public class Baz
|
||||
{
|
||||
public int Prop1 { get; set; }
|
||||
public int Prop2 { get; }
|
||||
public int Prop3 { get; set; }
|
||||
}
|
||||
}
|
||||
";
|
||||
|
||||
const string expectedResult = @"
|
||||
// <auto-generated />
|
||||
|
||||
namespace Test
|
||||
{
|
||||
public partial class Foo
|
||||
{
|
||||
public Foo(Baz baz)
|
||||
{
|
||||
}
|
||||
}
|
||||
}
|
||||
";
|
||||
|
||||
// Act
|
||||
var (compilation, diagnostics) = CSharpGenerator.GetOutputCompilation(source);
|
||||
|
||||
// Assert
|
||||
diagnostics.ShouldBeSuccessful();
|
||||
compilation.SyntaxTrees.Count().ShouldBe(3);
|
||||
compilation.SyntaxTrees.Last().ToString().ShouldBe(expectedResult.Trim());
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void When_MapToAttributeWithNamespaceFound_Should_GenerateTheClass()
|
||||
{
|
||||
// Arrange
|
||||
const string source = @"
|
||||
namespace Test
|
||||
{
|
||||
[MapTo.MapFrom(typeof(Baz)]
|
||||
public partial class Foo
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
public class Baz
|
||||
{
|
||||
|
||||
}
|
||||
}
|
||||
";
|
||||
|
||||
const string expectedResult = @"
|
||||
// <auto-generated />
|
||||
|
||||
namespace Test
|
||||
{
|
||||
public partial class Foo
|
||||
{
|
||||
public Foo(Baz baz)
|
||||
{
|
||||
}
|
||||
}
|
||||
}
|
||||
";
|
||||
|
||||
// Act
|
||||
var (compilation, diagnostics) = CSharpGenerator.GetOutputCompilation(source);
|
||||
|
||||
// Assert
|
||||
diagnostics.ShouldBeSuccessful();
|
||||
compilation.SyntaxTrees.Count().ShouldBe(3);
|
||||
compilation.SyntaxTrees.Last().ToString().ShouldBe(expectedResult.Trim());
|
||||
}
|
||||
|
||||
[Fact]
|
||||
public void When_SourceTypeHasMatchingProperties_Should_CreateConstructorAndAssignSrcToDest()
|
||||
{
|
||||
// Arrange
|
||||
var source = GetSourceText();
|
||||
|
||||
const string expectedResult = @"
|
||||
public partial class Foo
|
||||
{
|
||||
public Foo(Baz baz)
|
||||
{
|
||||
Prop1 = baz.Prop1;
|
||||
Prop2 = baz.Prop2;
|
||||
Prop3 = baz.Prop3;
|
||||
}
|
||||
";
|
||||
|
||||
// Act
|
||||
var (compilation, diagnostics) = CSharpGenerator.GetOutputCompilation(source);
|
||||
|
||||
// Assert
|
||||
diagnostics.ShouldBeSuccessful();
|
||||
compilation.SyntaxTrees.Count().ShouldBe(3);
|
||||
compilation.SyntaxTrees.Last().ToString().ShouldContain(expectedResult.Trim());
|
||||
}
|
||||
|
||||
private static string GetSourceText(bool includeAttributeNamespace = false)
|
||||
{
|
||||
return @$"
|
||||
namespace Test
|
||||
{{
|
||||
{(includeAttributeNamespace ? "[MapTo.MapFrom(typeof(Baz))]" : "[MapFrom(typeof(Baz))]")}
|
||||
public partial class Foo
|
||||
{{
|
||||
public int Prop1 {{ get; set; }}
|
||||
public int Prop2 {{ get; }}
|
||||
public int Prop3 {{ get; }}
|
||||
}}
|
||||
|
||||
public class Baz
|
||||
{{
|
||||
public int Prop1 {{ get; set; }}
|
||||
public int Prop2 {{ get; }}
|
||||
public int Prop3 {{ get; set; }}
|
||||
}}
|
||||
}}
|
||||
";
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue