public void ProcessRewriteToString(ModuleDefinition systemModuleDefinition, TypeDefinition enumTypeDefinition)
{
if (enumTypeDefinition.Methods.Any(x => x.Name == "ToString"))
{
return;
}
var method = EnumExtensionUtility.MakeToString(enumTypeDefinition);
var moduleDefinition = enumTypeDefinition.Module;
enumTypeDefinition.Methods.Add(method);
if (!EnumExtensionUtility.ImplementFlags32 <T>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, method))
{
enumTypeDefinition.Methods.Remove(method);
}
}
private static MethodDefinition Implement(ModuleDefinition moduleDefinition, ModuleDefinition systemModuleDefinition, string methodName, TypeDefinition enumTypeDefinition, TypeDefinition privateImplementationDetails)
{
var toStringMethodDefinition = new MethodDefinition(methodName, MethodAttributes.Static | MethodAttributes.Final | MethodAttributes.Public | MethodAttributes.HideBySig, moduleDefinition.TypeSystem.String)
{
AggressiveInlining = true,
Parameters = { new ParameterDefinition("value", ParameterAttributes.None, new ByReferenceType(moduleDefinition.ImportReference(enumTypeDefinition))) }
};
privateImplementationDetails.Methods.Add(toStringMethodDefinition);
var hasFlag = enumTypeDefinition.HasCustomAttributes && enumTypeDefinition.CustomAttributes.Any(customAttribute => customAttribute.AttributeType.FullName == "System.FlagsAttribute");
switch (enumTypeDefinition.Fields[0].FieldType.Name)
{
case "Byte":
if (hasFlag)
{
EnumExtensionUtility.ImplementFlags32 <byte>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
else
{
EnumExtensionUtility.ImplementNoFlag <byte>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
break;
case "SByte":
if (hasFlag)
{
EnumExtensionUtility.ImplementFlags32 <sbyte>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
else
{
EnumExtensionUtility.ImplementNoFlag <sbyte>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
break;
case "Int16":
if (hasFlag)
{
EnumExtensionUtility.ImplementFlags32 <short>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
else
{
EnumExtensionUtility.ImplementNoFlag <short>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
break;
case "UInt16":
if (hasFlag)
{
EnumExtensionUtility.ImplementFlags32 <ushort>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
else
{
EnumExtensionUtility.ImplementNoFlag <ushort>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
break;
case "Int32":
if (hasFlag)
{
EnumExtensionUtility.ImplementFlags32 <int>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
else
{
EnumExtensionUtility.ImplementNoFlag <int>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
break;
case "UInt32":
if (hasFlag)
{
EnumExtensionUtility.ImplementFlags32 <uint>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
else
{
EnumExtensionUtility.ImplementNoFlag <uint>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
break;
case "Int64":
if (hasFlag)
{
EnumExtensionUtility.ImplementFlags64 <long>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
else
{
EnumExtensionUtility.ImplementNoFlag <long>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
break;
case "UInt64":
if (hasFlag)
{
EnumExtensionUtility.ImplementFlags64 <ulong>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
else
{
EnumExtensionUtility.ImplementNoFlag <ulong>(systemModuleDefinition, moduleDefinition, enumTypeDefinition, toStringMethodDefinition);
}
break;
}
return(toStringMethodDefinition);
}