private static void EmiFieldOrPropertyCopyIL(ILGenerator generator, MethodInfo deepCopyMethod, FieldOrPropertyInfo member)
{
Debug.Assert(member.MemberInfo is FieldInfo || member.MemberInfo is PropertyInfo, "Field or property expected");
if (member.ValueType.IsValueType || member.IsDefined(typeof(ShallowCopyAttribute), false))
{
// shallow copy - copy value by simple assignment
generator.Emit(OpCodes.Ldarg_1);
generator.Emit(OpCodes.Ldarg_0);
if (member.MemberInfo is FieldInfo)
{
var field = (FieldInfo)member.MemberInfo;
generator.Emit(OpCodes.Ldfld, field);
generator.Emit(OpCodes.Stfld, field);
}
else
{
var property = (PropertyInfo)member.MemberInfo;
generator.Emit(OpCodes.Call, property.GetGetMethod());
generator.Emit(OpCodes.Call, property.GetSetMethod());
}
}
else
{
// deep copy - call special method for obtaining a deep copy
generator.Emit(OpCodes.Ldarg_1);
generator.Emit(OpCodes.Ldarg_0);
if (member.MemberInfo is FieldInfo)
generator.Emit(OpCodes.Ldfld, (FieldInfo)member.MemberInfo);
else
generator.Emit(OpCodes.Call, ((PropertyInfo)member.MemberInfo).GetGetMethod());
generator.Emit(OpCodes.Call, deepCopyMethod);
if (member.MemberInfo is FieldInfo)
generator.Emit(OpCodes.Stfld, (FieldInfo)member.MemberInfo);
else
generator.Emit(OpCodes.Call, ((PropertyInfo)member.MemberInfo).GetSetMethod());
}
}
