Generate serialization AOT-compatible (Azure#51628)

* make serialization AOT compatible

* Generate serialization AOT-compatible

Author: live1206

eng/packages/http-client-csharp-mgmt/generator/Azure.Generator.Management/src/ManagementTypeFactory.cs

@@ -5,8 +5,10 @@
 using Azure.Generator.Management.Primitives;
 using Azure.Generator.Management.Providers;
 using Azure.Generator.Management.Providers.Abstraction;
+using Azure.Generator.Management.Snippets;
 using Microsoft.TypeSpec.Generator;
 using Microsoft.TypeSpec.Generator.ClientModel.Providers;
+using Microsoft.TypeSpec.Generator.ClientModel.Snippets;
 using Microsoft.TypeSpec.Generator.Expressions;
 using Microsoft.TypeSpec.Generator.Input;
 using Microsoft.TypeSpec.Generator.Input.Extensions;
@@ -17,6 +19,7 @@
 using System;
 using System.ClientModel.Primitives;
 using System.Collections.Generic;
+using System.Text;
 using System.Text.Json;
 using static Microsoft.TypeSpec.Generator.Snippets.Snippet;
 
@@ -99,7 +102,7 @@ public override MethodBodyStatement SerializeJsonValue(Type valueType, ValueExpr
         {
             if (KnownManagementTypes.IsKnownManagementType(valueType))
             {
-                return Static(typeof(JsonSerializer)).Invoke(nameof(JsonSerializer.Serialize), [value]).Terminate();
+                return value.CastTo(new CSharpType(typeof(IJsonModel<>), valueType)).Invoke(nameof(IJsonModel<object>.Write), [ModelSerializationExtensionsSnippets.Wire]).Terminate();
             }
 
             if (KnownManagementTypes.TryGetJsonSerializationExpression(valueType, out var serializationExpression))
@@ -117,7 +120,23 @@ public override ValueExpression DeserializeJsonValue(Type valueType, ScopedApi<J
         {
             if (KnownManagementTypes.IsKnownManagementType(valueType))
             {
-                return Static(typeof(JsonSerializer)).Invoke(nameof(JsonSerializer.Deserialize), [element], [valueType], false);
+                IReadOnlyList<ValueExpression> readBody =
+                [
+                    New.Instance(
+                    typeof(BinaryData),
+                    [
+                        new MemberExpression(typeof(Encoding), nameof(Encoding.UTF8)).Invoke(nameof(UTF8Encoding.GetBytes),
+                            [
+                                element.GetRawText()
+                            ])
+                    ]),
+                    ModelSerializationExtensionsSnippets.Wire
+                ];
+
+                return Static(typeof(ModelReaderWriter)).Invoke(
+                    nameof(ModelReaderWriter.Read),
+                    [.. readBody, ModelReaderWriterContextSnippets.Default],
+                    typeArgs: [valueType]);
             }
 
             if (KnownManagementTypes.TryGetJsonDeserializationExpression(valueType, out var deserializationExpression))

eng/packages/http-client-csharp-mgmt/generator/Azure.Generator.Management/src/Snippets/ModelSerializationExtensionsSnippets.cs

@@ -0,0 +1,17 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+using Microsoft.TypeSpec.Generator.ClientModel.Providers;
+using Microsoft.TypeSpec.Generator.Snippets;
+using System.ClientModel.Primitives;
+using static Microsoft.TypeSpec.Generator.Snippets.Snippet;
+
+namespace Azure.Generator.Management.Snippets
+{
+    internal static class ModelSerializationExtensionsSnippets
+    {
+        private const string WireOptionsName = "WireOptions";
+
+        public static readonly ScopedApi<ModelReaderWriterOptions> Wire = Static<ModelSerializationExtensionsDefinition>().Property(WireOptionsName).As<ModelReaderWriterOptions>();
+    }
+}