Setup generators like Mvc

2026-07-18 15:09:30 +00:00 · 2024-09-25 18:49:02 +02:00
parent 43f78ddb9c
commit 0ad74f1a77
13 changed files with 416 additions and 505 deletions
@@ -0,0 +1,47 @@
+using System;
+using Microsoft.CodeAnalysis;
+using Sybil;
+
+namespace Net.Sdk.Web.Extensions.SourceGenerators;
+
+[Generator(LanguageNames.CSharp)]
+#nullable enable
+public class MapAttributeGenerator : IIncrementalGenerator
+{
+    public void Initialize(IncrementalGeneratorInitializationContext context)
+    {
+        context.RegisterPostInitializationOutput(context =>
+        {
+            GenerateMapAttribute(context, Constants.GetAttributeName);
+            GenerateMapAttribute(context, Constants.PostAttributeName);
+            GenerateMapAttribute(context, Constants.PutAttributeName);
+            GenerateMapAttribute(context, Constants.DeleteAttributeName);
+        });
+    }
+
+    private static void GenerateMapAttribute(IncrementalGeneratorPostInitializationContext context, string attributeName)
+    {
+        var builder = SyntaxBuilder.CreateCompilationUnit()
+                .WithNamespace(
+                SyntaxBuilder.CreateNamespace(Constants.Namespace)
+                    .WithClass(SyntaxBuilder.CreateClass(attributeName)
+                        .WithModifier(Constants.Public)
+                        .WithConstructor(SyntaxBuilder.CreateConstructor(attributeName)
+                            .WithModifier(Constants.Public))
+                        .WithAttribute(SyntaxBuilder.CreateAttribute("AttributeUsage")
+                            .WithArgument(AttributeTargets.Method)
+                            .WithArgument("Inherited", false)
+                            .WithArgument("AllowMultiple", false))
+                        .WithBaseClass(nameof(Attribute))
+                        .WithProperty(SyntaxBuilder.CreateProperty(Constants.StringType, Constants.PatternPropertyName)
+                            .WithModifier(Constants.Public)
+                            .WithAccessor(SyntaxBuilder.CreateGetter())
+                            .WithAccessor(SyntaxBuilder.CreateSetter()))));
+
+        var syntax = builder.Build();
+        var source = syntax.ToFullString();
+        context.AddSource($"{attributeName}.g", source);
+    }
+}
+
+#nullable disable