private static OpCode GetStindInstruction(System.Type parameterType)
{
if (parameterType.IsByRef)
{
OpCode stindOpCode;
if(OpCodesMap.TryGetStindOpCode(parameterType.GetElementType(), out stindOpCode))
{
return stindOpCode;
}
}
return OpCodes.Stind_Ref;
}
private static void SaveRefArguments(ILGenerator IL, ParameterInfo[] parameters)
{
// Save the arguments returned from the handler method
IL.Emit(OpCodes.Ldloc_1);
IL.Emit(OpCodes.Call, getArguments);
IL.Emit(OpCodes.Stloc_0);
foreach (ParameterInfo param in parameters)
{
string typeName = param.ParameterType.Name;
bool isRef = param.ParameterType.IsByRef && typeName.EndsWith("&");
if (!isRef)
{
continue;
}
// Load the destination address
IL.Emit(OpCodes.Ldarg, param.Position + 1);
// Load the argument value
IL.Emit(OpCodes.Ldloc_0);
IL.Emit(OpCodes.Ldc_I4, param.Position);
IL.Emit(OpCodes.Ldelem_Ref);
System.Type unboxedType = param.ParameterType.GetElementType();
IL.Emit(OpCodes.Unbox_Any, unboxedType);
if (Nullable.GetUnderlyingType(unboxedType) != null)
{
IL.Emit(OpCodes.Stobj, unboxedType);
}
else if (OpCodesMap.TryGetStindOpCode(param.ParameterType.GetElementType(), out var stind))
{
IL.Emit(stind);
}
else
{
IL.Emit(OpCodes.Stind_Ref);
}
}
}