Merge pull request #215 from dotnet/r8

R8

fundamentals/aot/diagnostics/Rdg8/Program.cs

@@ -0,0 +1,52 @@
+#define RDG008 //RDG008F
+#if NEVER
+#elif RDG008
+// <snippet_1>
+using System.Text.Json.Serialization;
+
+var builder = WebApplication.CreateSlimBuilder(args);
+
+builder.Services.ConfigureHttpJsonOptions(options =>
+{
+    options.SerializerOptions.TypeInfoResolverChain.Insert(0,
+                                 AppJsonSerializerContext.Default);
+});
+
+var app = builder.Build();
+
+app.MapPut("/v1/todos/{id}", ([AsParameters] TodoRequest request)
+    => Results.Ok(request.Id));
+
+app.Run();
+
+public class TodoRequest
+{
+    public DateTime DueDate { get; }
+    public int Id { get; private set; }
+    public string Task { get; private set; }
+
+    // Additional constructors
+    public TodoRequest(int Id, string Task, DateTime DueDate)
+
+    {
+        this.Id = Id;
+        this.Task = Task;
+        this.DueDate = DueDate;
+    }
+
+    public TodoRequest(int Id, string Task)
+        : this(Id, Task, default)
+    {
+    }
+}
+
+[JsonSerializable(typeof(TodoRequest[]))]
+internal partial class AppJsonSerializerContext : JsonSerializerContext
+{
+
+}
+// </snippet_1>
+#elif RDG008F
+// <snippet_1f>
+// </snippet_1f>
+#endif

fundamentals/aot/diagnostics/Rdg8/Rdg8.csproj

@@ -0,0 +1,12 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <InvariantGlobalization>true</InvariantGlobalization>
+    <PublishAot>true</PublishAot>
+    <LangVersion>preview</LangVersion>
+  </PropertyGroup>
+
+</Project>

fundamentals/aot/diagnostics/Rdg8/appsettings.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}