Fix named floating point JSON serialization

Author: Windows10CE

CSharpRepl.Tests/EvalTests.cs

@@ -72,6 +72,7 @@ public EvalTests(ITestOutputHelper outputHelper)
         [InlineData("typeof(int)", "System.Int32, System.Private.CoreLib, Version=7.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e", "RuntimeType")]
         [InlineData("Assembly.GetExecutingAssembly()", true, "RuntimeAssembly")]
         [InlineData("TimeSpan.FromSeconds(2310293892)", "26739.12:18:12", "TimeSpan")]
+        [InlineData("float.PositiveInfinity", "Infinity", "float")]
         public async Task Eval_WellFormattedCodeExecutes(string expr, object expected, string type)
         {
             var (result, statusCode) = await Execute(expr);

CSharpRepl/Eval/DisassemblyService.cs

@@ -65,7 +65,7 @@ public string GetIl(string code)
 
             namespace Eval
             {{
-              public class Code
+              public unsafe class Code
               {{
                 public object Main() 
                 {{
@@ -82,7 +82,8 @@ public object Main()
             var scriptSyntaxTree = CSharpSyntaxTree.ParseText(toExecute, opts);
             var compOpts = new CSharpCompilationOptions(OutputKind.DynamicallyLinkedLibrary)
                 .WithOptimizationLevel(OptimizationLevel.Debug)
-                .WithAllowUnsafe(true).WithPlatform(Platform.AnyCpu);
+                .WithAllowUnsafe(true)
+                .WithPlatform(Platform.AnyCpu);
 
             var compilation = CSharpCompilation.Create(Guid.NewGuid().ToString(), options: compOpts, references: References)
                 .AddSyntaxTrees(scriptSyntaxTree);

CSharpRepl/Eval/ResultModels/EvalResult.cs

@@ -87,6 +87,7 @@ public override string ToString()
                 IncludeFields = true,
                 PropertyNameCaseInsensitive = true,
                 ReferenceHandler = ReferenceHandler.IgnoreCycles,
+                NumberHandling = JsonNumberHandling.AllowNamedFloatingPointLiterals,
                 Converters = {
                     new TypeJsonConverter(), new TypeInfoJsonConverter(),
                     new RuntimeTypeHandleJsonConverter(), new TypeJsonConverterFactory(), new AssemblyJsonConverter(),

CSharpRepl/Startup.cs

@@ -36,6 +36,7 @@ public void ConfigureServices(IServiceCollection services)
                 IncludeFields = true,
                 PropertyNameCaseInsensitive = true,
                 ReferenceHandler = ReferenceHandler.IgnoreCycles,
+                NumberHandling = JsonNumberHandling.AllowNamedFloatingPointLiterals,
                 Converters = { 
                     new TypeJsonConverter(), new TypeInfoJsonConverter(),
                     new RuntimeTypeHandleJsonConverter(), new TypeJsonConverterFactory(), new AssemblyJsonConverter(),
@@ -57,6 +58,7 @@ public void ConfigureServices(IServiceCollection services)
                 o.JsonSerializerOptions.IncludeFields = true;
                 o.JsonSerializerOptions.PropertyNameCaseInsensitive = true;
                 o.JsonSerializerOptions.ReferenceHandler = ReferenceHandler.IgnoreCycles;
+                o.JsonSerializerOptions.NumberHandling |= JsonNumberHandling.AllowNamedFloatingPointLiterals;
                 o.JsonSerializerOptions.Converters.Add(new TypeJsonConverter());
                 o.JsonSerializerOptions.Converters.Add(new TypeInfoJsonConverter());
                 o.JsonSerializerOptions.Converters.Add(new RuntimeTypeHandleJsonConverter());