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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
//
// Generates the C# MdBinaryWriter class. This classes is responsible for correctly decoding
// data members in the .metadata file. See NativeFormatWriterGen.cs for how the MetadataWriter
// use this class.
//
class MdBinaryWriterGen : CsWriter
{
public MdBinaryWriterGen(string fileName)
: base(fileName)
{
}
public void EmitSource()
{
WriteLine("#pragma warning disable 649");
WriteLine();
WriteLine("using System;");
WriteLine("using System.IO;");
WriteLine("using System.Collections.Generic;");
WriteLine("using System.Reflection;");
WriteLine("using Internal.LowLevelLinq;");
WriteLine("using Internal.NativeFormat;");
WriteLine("using Debug = System.Diagnostics.Debug;");
WriteLine();
OpenScope("namespace Internal.Metadata.NativeFormat.Writer");
OpenScope("internal static partial class MdBinaryWriter");
foreach (var primitiveType in SchemaDef.PrimitiveTypes)
{
EmitWritePrimitiveArray(primitiveType.Name);
}
foreach (var enumType in SchemaDef.EnumTypes)
{
EmitWriteEnum(enumType);
}
EmitWriteArray($"MetadataRecord");
foreach (var typeName in SchemaDef.HandleSchema)
{
EmitWrite(typeName);
EmitWriteArray(typeName);
}
CloseScope("MdBinaryWriter");
CloseScope("Internal.Metadata.NativeFormat.Writer");
}
private void EmitWritePrimitiveArray(string typeName)
{
OpenScope($"public static void Write(this NativeWriter writer, {typeName}[] values)");
WriteLine("if (values == null)");
WriteLine("{");
WriteLine(" writer.WriteUnsigned(0);");
WriteLine(" return;");
WriteLine("}");
WriteLine("writer.WriteUnsigned((uint)values.Length);");
WriteLine($"foreach ({typeName} value in values)");
WriteLine("{");
WriteLine(" writer.Write(value);");
WriteLine("}");
CloseScope("Write");
}
private void EmitWriteEnum(EnumType enumType)
{
OpenScope($"public static void Write(this NativeWriter writer, {enumType.Name} value)");
WriteLine($"writer.WriteUnsigned((uint)value);");
CloseScope("Write");
}
private void EmitWrite(string typeName)
{
OpenScope($"public static void Write(this NativeWriter writer, {typeName} record)");
WriteLine("if (record != null)");
WriteLine(" writer.WriteUnsigned((uint)record.Handle.Offset);");
WriteLine("else");
WriteLine(" writer.WriteUnsigned(0);");
CloseScope("Write");
}
private void EmitWriteArray(string typeName)
{
OpenScope($"public static void Write(this NativeWriter writer, List<{typeName}> values)");
WriteLine("if (values == null)");
WriteLine("{");
WriteLine(" writer.WriteUnsigned(0);");
WriteLine(" return;");
WriteLine("}");
WriteLine("writer.WriteUnsigned((uint)values.Count);");
WriteLine($"foreach ({typeName} value in values)");
WriteLine("{");
WriteLine(" writer.Write(value);");
WriteLine("}");
CloseScope("Write");
}
}
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