Decimal instruction. #15

Super.Serialization.Testing.Application/DecimalInstructionTests.cs

@@ -0,0 +1,31 @@
+using FluentAssertions;
+using System.Text.Json.Serialization;
+using Xunit;
+
+namespace Super.Serialization.Testing.Application
+{
+	public sealed class DecimalInstructionTests
+	{
+		[Fact]
+		void Verify()
+		{
+			const decimal value = -12.34567m;
+			Writer.Default.Get(value)
+				  .Open()
+				  .Should()
+				  .Equal(JsonSerializer.ToUtf8Bytes(value));
+		}
+
+		sealed class Writer : SingleInstructionWriter<decimal>
+		{
+			public static Writer Default { get; } = new Writer();
+
+			Writer() : base(DecimalInstruction.Default) {}
+		}
+
+		public class Benchmarks : Benchmark<decimal>
+		{
+			public Benchmarks() : base(DecimalInstruction.Default, -12.34567m) {}
+		}
+	}
+}

Super.Serialization.Testing.Application/Program.cs

@@ -7,7 +7,7 @@ public class Program
 		static void Main(params string[] arguments)
 		{
 			Configuration.Default.Get(arguments)
-			             .To(Run.A<DoubleInstructionTests.Benchmarks>);
+			             .To(Run.A<DecimalInstructionTests.Benchmarks>);
 		}
 	}
 }

Super.Serialization/IInstruction.cs

@@ -315,4 +315,20 @@ public uint Get(Composition<double> parameter)
 
 		public uint Get(double parameter) => 128;
 	}
+
+	sealed class DecimalInstruction : IInstruction<decimal>
+	{
+		public static DecimalInstruction Default { get; } = new DecimalInstruction();
+
+		DecimalInstruction() {}
+
+		public uint Get(Composition<decimal> parameter)
+			=> Utf8Formatter.TryFormat(parameter.Instance, parameter.Output.AsSpan((int)parameter.Index),
+			                           out var count)
+				   ? (uint)count
+				   : throw new
+					     InvalidOperationException($"Could not format '{parameter.Instance}' into its UTF-8 equivalent.");
+
+		public uint Get(decimal parameter) => 31;
+	}
 }