static public /*internal*/ unsafe object CheckCastArray(Object obj, void *pvTargetEEType)
{
// a null value can be cast to anything
if (obj == null)
{
return(null);
}
object result = IsInstanceOfArray(obj, pvTargetEEType);
if (result == null)
{
// Throw the invalid cast exception defined by the classlib, using the input EEType*
// to find the correct classlib.
ExceptionIDs exID = ExceptionIDs.InvalidCast;
IntPtr addr = ((EEType *)pvTargetEEType)->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(exID, addr);
BinderIntrinsics.TailCall_RhpThrowEx(e);
}
return(result);
}
static public unsafe void *LdelemaRef(Object array, int index, IntPtr elementType)
{
Debug.Assert(array.EEType->IsArray, "second argument must be an array");
EEType *elemType = (EEType *)elementType;
EEType *arrayElemType = array.EEType->RelatedParameterType;
if (!AreTypesEquivalentInternal(elemType, arrayElemType))
{
// Throw the array type mismatch exception defined by the classlib, using the input array's EEType*
// to find the correct classlib.
IntPtr addr = array.EEType->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(ExceptionIDs.ArrayTypeMismatch, addr);
BinderIntrinsics.TailCall_RhpThrowEx(e);
}
fixed(void *pArray = &array.m_pEEType)
{
// CORERT-TODO: This code has GC hole - the method return type should really be byref.
// Requires byref returns in C# to fix cleanly (https://github.com/dotnet/roslyn/issues/118)
return((IntPtr *)pArray + ArrayBaseIndex + index);
}
}
static public unsafe void CheckVectorElemAddr(void *pvElemType, object array)
{
if (array == null)
{
return;
}
Debug.Assert(array.EEType->IsArray, "second argument must be an array");
EEType *elemType = (EEType *)pvElemType;
EEType *arrayElemType = array.EEType->RelatedParameterType;
if (!AreTypesEquivalentInternal(elemType, arrayElemType)
// In addition to the exactness check, add another check to allow non-exact matches through
// if the element type is a ValueType. The issue here is Universal Generics. The Universal
// Generic codegen will generate a call to this helper for all ldelema opcodes if the exact
// type is not known, and this can include ValueTypes. For ValueTypes, the exact check is not
// desireable as enum's are allowed to pass through this code if they are size matched.
// While this check is overly broad and allows non-enum valuetypes to also skip the check
// that is OK, because in the non-enum case the casting operations are sufficient to ensure
// type safety.
&& !elemType->IsValueType)
{
// Throw the array type mismatch exception defined by the classlib, using the input array's EEType*
// to find the correct classlib.
ExceptionIDs exID = ExceptionIDs.ArrayTypeMismatch;
IntPtr addr = array.EEType->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(exID, addr);
BinderIntrinsics.TailCall_RhpThrowEx(e);
}
}
public static void ThrowClasslibDivideByZeroException(IntPtr address)
{
// Throw the divide by zero exception defined by the classlib, using the return address of the asm helper
// to find the correct classlib.
Exception e = GetClasslibException(ExceptionIDs.DivideByZero, address);
BinderIntrinsics.TailCall_RhpThrowEx(e);
throw e;
}
static public unsafe void StelemRef(Object array, int index, object obj)
{
// This is supported only on arrays
Debug.Assert(array.EEType->IsArray, "first argument must be an array");
if (index >= array.GetArrayLength())
{
IntPtr addr = array.EEType->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(ExceptionIDs.IndexOutOfRange, addr);
throw e;
}
if (obj != null)
{
EEType *arrayElemType = array.EEType->RelatedParameterType;
bool compatible;
if (arrayElemType->IsInterface)
{
compatible = IsInstanceOfInterface(obj, arrayElemType) != null;
}
else if (arrayElemType->IsArray)
{
compatible = IsInstanceOfArray(obj, arrayElemType) != null;
}
else
{
compatible = IsInstanceOfClass(obj, arrayElemType) != null;
}
if (!compatible)
{
// Throw the array type mismatch exception defined by the classlib, using the input array's EEType*
// to find the correct classlib.
IntPtr addr = array.EEType->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(ExceptionIDs.ArrayTypeMismatch, addr);
BinderIntrinsics.TailCall_RhpThrowEx(e);
}
// Both bounds and type check are ok.
fixed(void *pArray = &array.m_pEEType)
{
RhpAssignRef((IntPtr *)pArray + ArrayBaseIndex + index, obj);
}
}
else
{
fixed(void *pArray = &array.m_pEEType)
{
// Storing null does not require write barrier
*((IntPtr *)pArray + ArrayBaseIndex + index) = default(IntPtr);
}
}
}
public static void FailedAllocation(EETypePtr pEEType, bool fIsOverflow)
{
ExceptionIDs exID = fIsOverflow ? ExceptionIDs.Overflow : ExceptionIDs.OutOfMemory;
// Throw the out of memory exception defined by the classlib, using the input EEType*
// to find the correct classlib.
Exception e = pEEType.ToPointer()->GetClasslibException(exID);
BinderIntrinsics.TailCall_RhpThrowEx(e);
}
public static void FailedAllocation(bool fIsOverflow)
{
// Throw the out of memory or overflow exception defined by the classlib, using the return address from this helper
// to find the correct classlib.
ExceptionIDs exID = fIsOverflow ? ExceptionIDs.Overflow : ExceptionIDs.OutOfMemory;
IntPtr returnAddr = BinderIntrinsics.GetReturnAddress();
Exception e = GetClasslibException(exID, returnAddr);
BinderIntrinsics.TailCall_RhpThrowEx(e);
}
public unsafe static void RhUnboxAny(object o, ref Hack_o_p data, EETypePtr pUnboxToEEType)
{
EEType *ptrUnboxToEEType = (EEType *)pUnboxToEEType.ToPointer();
if (ptrUnboxToEEType->IsValueType)
{
// HACK: we would really want to take the address of o here,
// but the rules of the C# language don't let us do that,
// so we arrive at the same result by taking the address of p
// and going back one pointer-sized unit
fixed(IntPtr *pData = &data.p)
{
bool isValid = false;
if (ptrUnboxToEEType->IsNullable)
{
isValid = (o == null) || TypeCast.AreTypesEquivalentInternal(o.EEType, ptrUnboxToEEType->GetNullableType());
}
else if (o != null)
{
isValid = UnboxAnyTypeCompare(o.EEType, ptrUnboxToEEType);
}
if (!isValid)
{
// Throw the invalid cast exception defined by the classlib, using the input unbox EEType*
// to find the correct classlib.
ExceptionIDs exID = o == null ? ExceptionIDs.NullReference : ExceptionIDs.InvalidCast;
IntPtr addr = ptrUnboxToEEType->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(exID, addr);
BinderIntrinsics.TailCall_RhpThrowEx(e);
}
InternalCalls.RhUnbox(o, pData - 1, ptrUnboxToEEType);
}
}
else
{
if (o == null || (TypeCast.IsInstanceOf(o, ptrUnboxToEEType) != null))
{
data.o = o;
}
else
{
IntPtr addr = ptrUnboxToEEType->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(ExceptionIDs.InvalidCast, addr);
BinderIntrinsics.TailCall_RhpThrowEx(e);
}
}
}
public static void ThrowClasslibArithmeticException()
{
// Throw the arithmetic exception defined by the classlib, using the return address from this
// helper to find the correct classlib.
ExceptionIDs exID = ExceptionIDs.Arithmetic;
IntPtr returnAddr = BinderIntrinsics.GetReturnAddress();
Exception e = GetClasslibException(exID, returnAddr);
BinderIntrinsics.TailCall_RhpThrowEx(e);
throw e;
}
public static void ThrowClasslibIndexOutOfRangeException()
{
// Throw the index out of range exception defined by the classlib, using the return address from
// this helper to find the correct classlib.
ExceptionIDs exID = ExceptionIDs.IndexOutOfRange;
IntPtr returnAddr = BinderIntrinsics.GetReturnAddress();
Exception e = GetClasslibException(exID, returnAddr);
BinderIntrinsics.TailCall_RhpThrowEx(e);
throw e;
}
public static void FailedAllocation(EETypePtr pEEType, bool fIsOverflow)
{
// Throw the out of memory or overflow exception defined by the classlib, using the return address from this helper
// to find the correct classlib.
ExceptionIDs exID = fIsOverflow ? ExceptionIDs.Overflow : ExceptionIDs.OutOfMemory;
// Throw the out of memory exception defined by the classlib, using the input EEType*
// to find the correct classlib.
IntPtr addr = pEEType.ToPointer()->GetAssociatedModuleAddress();
Exception e = GetClasslibException(exID, addr);
BinderIntrinsics.TailCall_RhpThrowEx(e);
}
static public /*internal*/ unsafe object CheckCastInterface(Object obj, void *pvTargetEEType)
{
// a null value can be cast to anything
if (obj == null)
{
return(null);
}
EEType *pTargetType = (EEType *)pvTargetEEType;
EEType *pObjType = obj.EEType;
if (ImplementsInterface(pObjType, pTargetType))
{
return(obj);
}
Exception castError = null;
// If object type implements ICastable then there's one more way to check whether it implements
// the interface.
if (pObjType->IsICastable)
{
// Call the ICastable.IsInstanceOfInterface method directly rather than via an interface
// dispatch since we know the method address statically.
IntPtr pfnIsInstanceOfInterface = pObjType->ICastableIsInstanceOfInterfaceMethod;
if (CalliIntrinsics.Call <bool>(pfnIsInstanceOfInterface, obj, pTargetType, out castError))
{
return(obj);
}
}
// Throw the invalid cast exception defined by the classlib, using the input EEType* to find the
// correct classlib unless ICastable.IsInstanceOfInterface returned a more specific exception for
// us to use.
IntPtr addr = ((EEType *)pvTargetEEType)->GetAssociatedModuleAddress();
if (castError == null)
{
castError = EH.GetClasslibException(ExceptionIDs.InvalidCast, addr);
}
BinderIntrinsics.TailCall_RhpThrowEx(castError);
throw castError;
}
static public unsafe void RhUnboxNullable(ref Hack_o_p data, EETypePtr pUnboxToEEType, Object obj)
{
EEType *ptrUnboxToEEType = (EEType *)pUnboxToEEType.ToPointer();
// HACK: we would really want to take the address of o here,
// but the rules of the C# language don't let us do that,
// so we arrive at the same result by taking the address of p
// and going back one pointer-sized unit
fixed(IntPtr *pData = &data.p)
{
if ((obj != null) && (obj.EEType != ptrUnboxToEEType->GetNullableType()))
{
Exception e = ptrUnboxToEEType->GetClasslibException(ExceptionIDs.InvalidCast);
BinderIntrinsics.TailCall_RhpThrowEx(e);
}
InternalCalls.RhUnbox(obj, pData - 1, ptrUnboxToEEType);
}
}
static public unsafe void *RhUnbox2(EETypePtr pUnboxToEEType, Object obj)
{
EEType *ptrUnboxToEEType = (EEType *)pUnboxToEEType.ToPointer();
if (obj.EEType != ptrUnboxToEEType)
{
// We allow enums and their primtive type to be interchangable
if (obj.EEType->CorElementType != ptrUnboxToEEType->CorElementType)
{
Exception e = ptrUnboxToEEType->GetClasslibException(ExceptionIDs.InvalidCast);
BinderIntrinsics.TailCall_RhpThrowEx(e);
}
}
fixed(void *pObject = &obj.m_pEEType)
{
// CORERT-TODO: This code has GC hole - the method return type should really be byref.
// Requires byref returns in C# to fix cleanly (https://github.com/dotnet/roslyn/issues/118)
return((IntPtr *)pObject + 1);
}
}
static public /*internal*/ unsafe void CheckUnbox(Object obj, byte expectedCorElementType)
{
if (obj == null)
{
return;
}
if (obj.EEType->CorElementType == (CorElementType)expectedCorElementType)
{
return;
}
// Throw the invalid cast exception defined by the classlib, using the input object's EEType*
// to find the correct classlib.
ExceptionIDs exID = ExceptionIDs.InvalidCast;
IntPtr addr = obj.EEType->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(exID, addr);
BinderIntrinsics.TailCall_RhpThrowEx(e);
}
static public /*internal*/ unsafe void CheckArrayStore(object array, object obj)
{
if (array == null || obj == null)
{
return;
}
Debug.Assert(array.EEType->IsArray, "first argument must be an array");
EEType *arrayElemType = array.EEType->RelatedParameterType;
bool compatible;
if (arrayElemType->IsInterface)
{
compatible = IsInstanceOfInterface(obj, arrayElemType) != null;
}
else if (arrayElemType->IsArray)
{
compatible = IsInstanceOfArray(obj, arrayElemType) != null;
}
else
{
compatible = IsInstanceOfClass(obj, arrayElemType) != null;
}
if (!compatible)
{
// Throw the array type mismatch exception defined by the classlib, using the input array's EEType*
// to find the correct classlib.
ExceptionIDs exID = ExceptionIDs.ArrayTypeMismatch;
IntPtr addr = array.EEType->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(exID, addr);
BinderIntrinsics.TailCall_RhpThrowEx(e);
}
}
static public /*internal*/ unsafe void CheckVectorElemAddr(void *pvElemType, object array)
{
if (array == null)
{
return;
}
Debug.Assert(array.EEType->IsArray, "second argument must be an array");
EEType *elemType = (EEType *)pvElemType;
EEType *arrayElemType = array.EEType->RelatedParameterType;
if (!AreTypesEquivalentInternal(elemType, arrayElemType))
{
// Throw the array type mismatch exception defined by the classlib, using the input array's EEType*
// to find the correct classlib.
ExceptionIDs exID = ExceptionIDs.ArrayTypeMismatch;
IntPtr addr = array.EEType->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(exID, addr);
BinderIntrinsics.TailCall_RhpThrowEx(e);
}
}