private static RuntimeTypeHandle GetRuntimeTypeHandle(IntPtr pEEType)
{
#if CLR_RUNTIMETYPEHANDLE
return(new RuntimeTypeHandle(ReflectionCoreNonPortable.GetRuntimeTypeForEEType(new EETypePtr(pEEType))));
#else
return(new RuntimeTypeHandle(new EETypePtr(pEEType)));
#endif
}
public Type GetType()
{
return(ReflectionCoreNonPortable.GetRuntimeTypeForEEType(EETypePtr));
}
// Special coersion rules for primitives, enums and pointer.
private static Exception ConvertOrWidenPrimitivesEnumsAndPointersIfPossible(object srcObject, EETypePtr srcEEType, EETypePtr dstEEType, CheckArgumentSemantics semantics, out object dstObject)
{
if (semantics == CheckArgumentSemantics.SetFieldDirect && (srcEEType.IsEnum || dstEEType.IsEnum))
{
dstObject = null;
return(CreateChangeTypeException(srcEEType, dstEEType, semantics));
}
if (dstEEType.IsPointer)
{
Exception exception = ConvertPointerIfPossible(srcObject, srcEEType, dstEEType, semantics, out IntPtr dstIntPtr);
if (exception != null)
{
dstObject = null;
return(exception);
}
dstObject = dstIntPtr;
return(null);
}
if (!(srcEEType.IsPrimitive && dstEEType.IsPrimitive))
{
dstObject = null;
return(CreateChangeTypeException(srcEEType, dstEEType, semantics));
}
RuntimeImports.RhCorElementType dstCorElementType = dstEEType.CorElementType;
if (!srcEEType.CorElementTypeInfo.CanWidenTo(dstCorElementType))
{
dstObject = null;
return(CreateChangeTypeArgumentException(srcEEType, dstEEType));
}
switch (dstCorElementType)
{
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_BOOLEAN:
dstObject = Convert.ToBoolean(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_CHAR:
dstObject = Convert.ToChar(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_I1:
dstObject = Convert.ToSByte(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_I2:
dstObject = Convert.ToInt16(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_I4:
dstObject = Convert.ToInt32(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_I8:
dstObject = Convert.ToInt64(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_U1:
dstObject = Convert.ToByte(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_U2:
dstObject = Convert.ToUInt16(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_U4:
dstObject = Convert.ToUInt32(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_U8:
dstObject = Convert.ToUInt64(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_R4:
if (srcEEType.CorElementType == RuntimeImports.RhCorElementType.ELEMENT_TYPE_CHAR)
{
dstObject = (float)(char)srcObject;
}
else
{
dstObject = Convert.ToSingle(srcObject);
}
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_R8:
if (srcEEType.CorElementType == RuntimeImports.RhCorElementType.ELEMENT_TYPE_CHAR)
{
dstObject = (double)(char)srcObject;
}
else
{
dstObject = Convert.ToDouble(srcObject);
}
break;
default:
Debug.Assert(false, "Unexpected CorElementType: " + dstCorElementType + ": Not a valid widening target.");
dstObject = null;
return(CreateChangeTypeException(srcEEType, dstEEType, semantics));
}
if (dstEEType.IsEnum)
{
Type dstType = ReflectionCoreNonPortable.GetRuntimeTypeForEEType(dstEEType);
dstObject = Enum.ToObject(dstType, dstObject);
}
Debug.Assert(dstObject.EETypePtr == dstEEType);
return(null);
}
private static RuntimeTypeHandle GetRuntimeTypeHandle(IntPtr pEEType)
{
return(new RuntimeTypeHandle(ReflectionCoreNonPortable.GetRuntimeTypeForEEType(new EETypePtr(pEEType))));
}
internal static Object CheckArgument(Object srcObject, EETypePtr dstEEType, CheckArgumentSemantics semantics)
{
if (srcObject == null)
{
// null -> default(T)
if (dstEEType.IsValueType && !dstEEType.IsNullable)
{
return(Runtime.RuntimeImports.RhNewObject(dstEEType));
}
else
{
return(null);
}
}
else
{
EETypePtr srcEEType = srcObject.EETypePtr;
if (RuntimeImports.AreTypesAssignable(srcEEType, dstEEType))
{
return(srcObject);
}
if (dstEEType.IsInterface)
{
ICastable castable = srcObject as ICastable;
Exception castError;
if (castable != null && castable.IsInstanceOfInterface(new RuntimeTypeHandle(dstEEType), out castError))
{
return(srcObject);
}
}
if (!((srcEEType.IsEnum || srcEEType.IsPrimitive) && (dstEEType.IsEnum || dstEEType.IsPrimitive)))
{
throw CreateChangeTypeException(srcEEType, dstEEType, semantics);
}
RuntimeImports.RhCorElementType dstCorElementType = dstEEType.CorElementType;
if (!srcEEType.CorElementTypeInfo.CanWidenTo(dstCorElementType))
{
throw CreateChangeTypeArgumentException(srcEEType, dstEEType);
}
Object dstObject;
switch (dstCorElementType)
{
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_BOOLEAN:
dstObject = Convert.ToBoolean(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_CHAR:
dstObject = Convert.ToChar(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_I1:
dstObject = Convert.ToSByte(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_I2:
dstObject = Convert.ToInt16(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_I4:
dstObject = Convert.ToInt32(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_I8:
dstObject = Convert.ToInt64(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_U1:
dstObject = Convert.ToByte(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_U2:
dstObject = Convert.ToUInt16(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_U4:
dstObject = Convert.ToUInt32(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_U8:
dstObject = Convert.ToUInt64(srcObject);
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_R4:
if (srcEEType.CorElementType == RuntimeImports.RhCorElementType.ELEMENT_TYPE_CHAR)
{
dstObject = (float)(char)srcObject;
}
else
{
dstObject = Convert.ToSingle(srcObject);
}
break;
case RuntimeImports.RhCorElementType.ELEMENT_TYPE_R8:
if (srcEEType.CorElementType == RuntimeImports.RhCorElementType.ELEMENT_TYPE_CHAR)
{
dstObject = (double)(char)srcObject;
}
else
{
dstObject = Convert.ToDouble(srcObject);
}
break;
default:
Debug.Assert(false, "Unexpected CorElementType: " + dstCorElementType + ": Not a valid widening target.");
throw CreateChangeTypeException(srcEEType, dstEEType, semantics);
}
if (dstEEType.IsEnum)
{
Type dstType = ReflectionCoreNonPortable.GetRuntimeTypeForEEType(dstEEType);
dstObject = Enum.ToObject(dstType, dstObject);
}
Debug.Assert(dstObject.EETypePtr == dstEEType);
return(dstObject);
}
}