public static unsafe void RhSetNonArrayBaseType(EETypePtr ptrEEType, EETypePtr ptrBaseEEType)
{
EEType *pEEType = ptrEEType.ToPointer();
EEType *pBaseEEType = ptrBaseEEType.ToPointer();
pEEType->BaseType = pBaseEEType;
}
public static unsafe void RhSetInterface(EETypePtr ptrEEType, int index, EETypePtr ptrInterfaceEEType)
{
EEType *pEEType = ptrEEType.ToPointer();
EEType *pInterfaceEEType = ptrInterfaceEEType.ToPointer();
pEEType->InterfaceMap[index].InterfaceType = pInterfaceEEType;
}
public unsafe static object RhNewObject(EETypePtr pEEType)
{
EEType *ptrEEType = (EEType *)pEEType.ToPointer();
#if FEATURE_64BIT_ALIGNMENT
if (ptrEEType->RequiresAlign8)
{
if (ptrEEType->IsValueType)
{
return(InternalCalls.RhpNewFastMisalign(ptrEEType));
}
if (ptrEEType->IsFinalizable)
{
return(InternalCalls.RhpNewFinalizableAlign8(ptrEEType));
}
return(InternalCalls.RhpNewFastAlign8(ptrEEType));
}
else
#endif // FEATURE_64BIT_ALIGNMENT
{
if (ptrEEType->IsFinalizable)
{
return(InternalCalls.RhpNewFinalizable(ptrEEType));
}
return(InternalCalls.RhpNewFast(ptrEEType));
}
}
public static unsafe bool RhIsString(EETypePtr ptrEEType)
{
EEType *pEEType = ptrEEType.ToPointer();
// String is currently the only non-array type with a non-zero component size.
return((pEEType->ComponentSize == sizeof(char)) && !pEEType->IsArray);
}
public static unsafe RhEETypeClassification RhGetEETypeClassification(EETypePtr ptrEEType)
{
EEType *pEEType = ptrEEType.ToPointer();
if (pEEType->IsArray)
{
return(RhEETypeClassification.Array);
}
if (pEEType->IsGeneric)
{
return(RhEETypeClassification.Generic);
}
if (pEEType->IsGenericTypeDefinition)
{
return(RhEETypeClassification.GenericTypeDefinition);
}
if (pEEType->IsPointerTypeDefinition)
{
return(RhEETypeClassification.UnmanagedPointer);
}
return(RhEETypeClassification.Regular);
}
public static unsafe object RhBox(EETypePtr pEEType, ref byte data)
{
EEType *ptrEEType = (EEType *)pEEType.ToPointer();
int dataOffset = 0;
object result;
// If we're boxing a Nullable<T> then either box the underlying T or return null (if the
// nullable's value is empty).
if (ptrEEType->IsNullable)
{
// The boolean which indicates whether the value is null comes first in the Nullable struct.
if (data == 0)
{
return(null);
}
// Switch type we're going to box to the Nullable<T> target type and advance the data pointer
// to the value embedded within the nullable.
dataOffset = ptrEEType->NullableValueOffset;
ptrEEType = ptrEEType->NullableType;
}
#if FEATURE_64BIT_ALIGNMENT
if (ptrEEType->RequiresAlign8)
{
result = InternalCalls.RhpNewFastMisalign(ptrEEType);
}
else
#endif // FEATURE_64BIT_ALIGNMENT
{
result = InternalCalls.RhpNewFast(ptrEEType);
}
InternalCalls.RhpBox(result, ref Unsafe.Add(ref data, dataOffset));
return(result);
}
public unsafe static object RhBox(EETypePtr pEEType, ref byte data)
{
EEType* ptrEEType = (EEType*)pEEType.ToPointer();
int dataOffset = 0;
object result;
// If we're boxing a Nullable<T> then either box the underlying T or return null (if the
// nullable's value is empty).
if (ptrEEType->IsNullable)
{
// The boolean which indicates whether the value is null comes first in the Nullable struct.
if (data == 0)
return null;
// Switch type we're going to box to the Nullable<T> target type and advance the data pointer
// to the value embedded within the nullable.
dataOffset = ptrEEType->NullableValueOffset;
ptrEEType = ptrEEType->NullableType;
}
#if FEATURE_64BIT_ALIGNMENT
if (ptrEEType->RequiresAlign8)
{
result = InternalCalls.RhpNewFastMisalign(ptrEEType);
}
else
#endif // FEATURE_64BIT_ALIGNMENT
{
result = InternalCalls.RhpNewFast(ptrEEType);
}
InternalCalls.RhpBox(result, ref Unsafe.Add(ref data, dataOffset));
return result;
}
public unsafe static object RhBox(EETypePtr pEEType, void *pData)
{
EEType *ptrEEType = (EEType *)pEEType.ToPointer();
object result;
// If we're boxing a Nullable<T> then either box the underlying T or return null (if the
// nullable's value is empty).
if (ptrEEType->IsNullable)
{
// The boolean which indicates whether the value is null comes first in the Nullable struct.
if (!*(bool *)pData)
{
return(null);
}
// Switch type we're going to box to the Nullable<T> target type and advance the data pointer
// to the value embedded within the nullable.
pData = (byte *)pData + ptrEEType->GetNullableValueOffset();
ptrEEType = ptrEEType->GetNullableType();
}
#if FEATURE_64BIT_ALIGNMENT
if (ptrEEType->RequiresAlign8)
{
result = InternalCalls.RhpNewFastMisalign(ptrEEType);
}
else
#endif // FEATURE_64BIT_ALIGNMENT
{
result = InternalCalls.RhpNewFast(ptrEEType);
}
if (result == null)
{
// Throw the out of memory exception defined by the classlib, using the input EEType*
// to find the correct classlib.
ExceptionIDs exID = ExceptionIDs.OutOfMemory;
IntPtr addr = pEEType.ToPointer()->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(exID, addr);
throw e;
}
InternalCalls.RhpBox(result, pData);
return(result);
}
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 MethodTable*
// to find the correct classlib.
throw pEEType.ToPointer()->GetClasslibException(exID);
}
public static unsafe void RhUnboxNullable(ref byte data, EETypePtr pUnboxToEEType, Object obj)
{
EEType *ptrUnboxToEEType = (EEType *)pUnboxToEEType.ToPointer();
if ((obj != null) && !TypeCast.AreTypesEquivalentInternal(obj.EEType, ptrUnboxToEEType->NullableType))
{
throw ptrUnboxToEEType->GetClasslibException(ExceptionIDs.InvalidCast);
}
InternalCalls.RhUnbox(obj, ref data, ptrUnboxToEEType);
}
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 unsafe ref byte RhUnbox2(EETypePtr pUnboxToEEType, Object obj)
{
EEType *ptrUnboxToEEType = (EEType *)pUnboxToEEType.ToPointer();
if ((obj == null) || !UnboxAnyTypeCompare(obj.EEType, ptrUnboxToEEType))
{
ExceptionIDs exID = obj == null ? ExceptionIDs.NullReference : ExceptionIDs.InvalidCast;
throw ptrUnboxToEEType->GetClasslibException(exID);
}
return(ref obj.GetRawData());
}
//
// Helper to create an array from a newobj instruction
//
public static unsafe Array NewObjArray(RuntimeTypeHandle typeHandleForArrayType, int[] arguments)
{
EETypePtr eeTypePtr = typeHandleForArrayType.ToEETypePtr();
Debug.Assert(eeTypePtr.IsArray);
fixed(int *pArguments = arguments)
{
return(ArrayHelpers.NewObjArray((IntPtr)eeTypePtr.ToPointer(), arguments.Length, pArguments));
}
}
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);
}
}
}
private static IntPtr RhResolveDispatchOnType(EETypePtr instanceType, EETypePtr interfaceType, ushort slot)
{
// Type of object we're dispatching on.
EEType *pInstanceType = instanceType.ToPointer();
// Type of interface
EEType *pInterfaceType = interfaceType.ToPointer();
return(DispatchResolve.FindInterfaceMethodImplementationTarget(pInstanceType,
pInterfaceType,
slot));
}
public unsafe static object RhNewObject(EETypePtr pEEType)
{
try
{
EEType *ptrEEType = (EEType *)pEEType.ToPointer();
#if FEATURE_64BIT_ALIGNMENT
if (ptrEEType->RequiresAlign8)
{
if (ptrEEType->IsValueType)
{
return(InternalCalls.RhpNewFastMisalign(ptrEEType));
}
if (ptrEEType->IsFinalizable)
{
return(InternalCalls.RhpNewFinalizableAlign8(ptrEEType));
}
return(InternalCalls.RhpNewFastAlign8(ptrEEType));
}
else
#endif // FEATURE_64BIT_ALIGNMENT
{
if (ptrEEType->IsFinalizable)
{
return(InternalCalls.RhpNewFinalizable(ptrEEType));
}
return(InternalCalls.RhpNewFast(ptrEEType));
}
}
catch (OutOfMemoryException)
{
// Throw the out of memory exception defined by the classlib, using the input EEType*
// to find the correct classlib.
ExceptionIDs exID = ExceptionIDs.OutOfMemory;
IntPtr addr = pEEType.ToPointer()->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(exID, addr);
throw e;
}
}
public unsafe static object RhNewArray(EETypePtr pEEType, int length)
{
EEType *ptrEEType = (EEType *)pEEType.ToPointer();
try
{
#if FEATURE_64BIT_ALIGNMENT
if (ptrEEType->RequiresAlign8)
{
return(InternalCalls.RhpNewArrayAlign8(ptrEEType, length));
}
else
#endif // FEATURE_64BIT_ALIGNMENT
{
return(InternalCalls.RhpNewArray(ptrEEType, length));
}
}
catch (OutOfMemoryException)
{
// Throw the out of memory exception defined by the classlib, using the input EEType*
// to find the correct classlib.
ExceptionIDs exID = ExceptionIDs.OutOfMemory;
IntPtr addr = pEEType.ToPointer()->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(exID, addr);
throw e;
}
catch (OverflowException)
{
// Throw the overflow exception defined by the classlib, using the input EEType*
// to find the correct classlib.
ExceptionIDs exID = ExceptionIDs.Overflow;
IntPtr addr = pEEType.ToPointer()->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(exID, addr);
throw e;
}
}
public static unsafe object RhBoxAny(ref byte data, EETypePtr pEEType)
{
EEType *ptrEEType = (EEType *)pEEType.ToPointer();
if (ptrEEType->IsValueType)
{
return(RhBox(pEEType, ref data));
}
else
{
return(Unsafe.As <byte, Object>(ref data));
}
}
static public unsafe bool RhBoxAndNullCheck(ref Hack_o_p data, EETypePtr pEEType)
{
EEType *ptrEEType = (EEType *)pEEType.ToPointer();
if (ptrEEType->IsValueType)
{
return(true);
}
else
{
return(data.o != null);
}
}
public unsafe static object RhAllocLocal(EETypePtr pEEType)
{
EEType *ptrEEType = (EEType *)pEEType.ToPointer();
if (ptrEEType->IsValueType)
{
return(RhNewObject(pEEType));
}
else
{
return(new Wrapper());
}
}
public static unsafe bool RhBoxAndNullCheck(ref byte data, EETypePtr pEEType)
{
EEType *ptrEEType = (EEType *)pEEType.ToPointer();
if (ptrEEType->IsValueType)
{
return(true);
}
else
{
return(Unsafe.As <byte, Object>(ref data) != null);
}
}
public static unsafe EETypePtr RhGetInterface(EETypePtr ptrEEType, uint index)
{
EEType *pEEType = ptrEEType.ToPointer();
// The convoluted pointer arithmetic into the interface map below (rather than a simply array
// dereference) is because C# will generate a 64-bit multiply for the lookup by default. This
// causes us a problem on x86 because it uses a helper that's mapped directly into the CRT via
// import magic and that technique doesn't work with the way we link this code into the runtime
// image. Since we don't need a 64-bit multiply here (the classlib is trusted code) we manually
// perform the calculation.
EEInterfaceInfo *pInfo = (EEInterfaceInfo *)((byte *)pEEType->InterfaceMap + (index * (uint)sizeof(EEInterfaceInfo)));
return(new EETypePtr((IntPtr)pInfo->InterfaceType));
}
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 unsafe ref byte 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)
{
throw ptrUnboxToEEType->GetClasslibException(ExceptionIDs.InvalidCast);
}
}
return(ref obj.GetRawData());
}
public unsafe static object RhNewArray(EETypePtr pEEType, int length)
{
EEType* ptrEEType = (EEType*)pEEType.ToPointer();
#if FEATURE_64BIT_ALIGNMENT
if (ptrEEType->RequiresAlign8)
{
return InternalCalls.RhpNewArrayAlign8(ptrEEType, length);
}
else
#endif // FEATURE_64BIT_ALIGNMENT
{
return InternalCalls.RhpNewArray(ptrEEType, length);
}
}
public unsafe static object RhNewArray(EETypePtr pEEType, int length)
{
EEType *ptrEEType = (EEType *)pEEType.ToPointer();
#if FEATURE_64BIT_ALIGNMENT
if (ptrEEType->RequiresAlign8)
{
return(InternalCalls.RhpNewArrayAlign8(ptrEEType, length));
}
else
#endif // FEATURE_64BIT_ALIGNMENT
{
return(InternalCalls.RhpNewArray(ptrEEType, length));
}
}
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->NullableType))
{
throw ptrUnboxToEEType->GetClasslibException(ExceptionIDs.InvalidCast);
}
InternalCalls.RhUnbox(obj, pData - 1, ptrUnboxToEEType);
}
}
public unsafe static object RhBoxAny(ref Hack_o_p data, EETypePtr pEEType)
{
EEType *ptrEEType = (EEType *)pEEType.ToPointer();
if (ptrEEType->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)
return(RhBox(pEEType, pData - 1));
}
else
{
return(data.o);
}
}
public static unsafe object RhNewObject(EETypePtr pEEType)
{
EEType *ptrEEType = (EEType *)pEEType.ToPointer();
// This is structured in a funny way because at the present state of things in CoreRT, the Debug.Assert
// below will call into the assert defined in the class library (and not the MRT version of it). The one
// in the class library is not low level enough to be callable when GC statics are not initialized yet.
// Feel free to restructure once that's not a problem.
#if DEBUG
bool isValid = !ptrEEType->IsGenericTypeDefinition &&
!ptrEEType->IsInterface &&
!ptrEEType->IsArray &&
!ptrEEType->IsString &&
!ptrEEType->IsByRefLike;
if (!isValid)
{
Debug.Assert(false);
}
#endif
#if FEATURE_64BIT_ALIGNMENT
if (ptrEEType->RequiresAlign8)
{
if (ptrEEType->IsValueType)
{
return(InternalCalls.RhpNewFastMisalign(ptrEEType));
}
if (ptrEEType->IsFinalizable)
{
return(InternalCalls.RhpNewFinalizableAlign8(ptrEEType));
}
return(InternalCalls.RhpNewFastAlign8(ptrEEType));
}
else
#endif // FEATURE_64BIT_ALIGNMENT
{
if (ptrEEType->IsFinalizable)
{
return(InternalCalls.RhpNewFinalizable(ptrEEType));
}
return(InternalCalls.RhpNewFast(ptrEEType));
}
}
public unsafe static object RhAllocLocal(EETypePtr pEEType)
{
EEType *ptrEEType = (EEType *)pEEType.ToPointer();
if (ptrEEType->IsValueType)
{
#if FEATURE_64BIT_ALIGNMENT
if (ptrEEType->RequiresAlign8)
{
return(InternalCalls.RhpNewFastMisalign(ptrEEType));
}
#endif
return(InternalCalls.RhpNewFast(ptrEEType));
}
else
{
return(new Wrapper());
}
}
public static unsafe ref byte RhAllocLocal2(EETypePtr pEEType)
{
EEType *ptrEEType = (EEType *)pEEType.ToPointer();
if (ptrEEType->IsValueType)
{
#if FEATURE_64BIT_ALIGNMENT
if (ptrEEType->RequiresAlign8)
{
return(ref InternalCalls.RhpNewFastMisalign(ptrEEType).GetRawData());
}
#endif
return(ref InternalCalls.RhpNewFast(ptrEEType).GetRawData());
}
else
{
return(ref new Wrapper().GetRawData());
}
}
public unsafe static object RhNewObject(EETypePtr pEEType)
{
EEType* ptrEEType = (EEType*)pEEType.ToPointer();
#if FEATURE_64BIT_ALIGNMENT
if (ptrEEType->RequiresAlign8)
{
if (ptrEEType->IsValueType)
return InternalCalls.RhpNewFastMisalign(ptrEEType);
if (ptrEEType->IsFinalizable)
return InternalCalls.RhpNewFinalizableAlign8(ptrEEType);
return InternalCalls.RhpNewFastAlign8(ptrEEType);
}
else
#endif // FEATURE_64BIT_ALIGNMENT
{
if (ptrEEType->IsFinalizable)
return InternalCalls.RhpNewFinalizable(ptrEEType);
return InternalCalls.RhpNewFast(ptrEEType);
}
}
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)
{
throw ptrUnboxToEEType->GetClasslibException(ExceptionIDs.InvalidCast);
}
}
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 unsafe public bool AreTypesEquivalent(EETypePtr pType1, EETypePtr pType2)
{
return (AreTypesEquivalentInternal(pType1.ToPointer(), pType2.ToPointer()));
}
public static unsafe ushort RhGetComponentSize(EETypePtr ptrEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
return pEEType->ComponentSize;
}
public static unsafe RhEETypeClassification RhGetEETypeClassification(EETypePtr ptrEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
if (pEEType->IsArray)
return RhEETypeClassification.Array;
if (pEEType->IsGeneric)
return RhEETypeClassification.Generic;
if (pEEType->IsGenericTypeDefinition)
return RhEETypeClassification.GenericTypeDefinition;
if (pEEType->IsPointerTypeDefinition)
return RhEETypeClassification.UnmanagedPointer;
return RhEETypeClassification.Regular;
}
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.
throw pEEType.ToPointer()->GetClasslibException(exID);
}
public static unsafe bool RhIsNullable(EETypePtr ptrEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
return pEEType->IsNullable;
}
public static unsafe bool RhHasReferenceFields(EETypePtr ptrEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
return pEEType->HasReferenceFields;
}
public static unsafe bool RhIsArray(EETypePtr ptrEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
return pEEType->IsArray;
}
public static unsafe bool RhHasCctor(EETypePtr ptrEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
return pEEType->HasCctor;
}
public static unsafe void RhSetInterface(EETypePtr ptrEEType, int index, EETypePtr ptrInterfaceEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
EEType* pInterfaceEEType = ptrInterfaceEEType.ToPointer();
pEEType->InterfaceMap[index].InterfaceType = pInterfaceEEType;
}
public static unsafe uint RhGetNumInterfaces(EETypePtr ptrEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
return (uint)pEEType->NumInterfaces;
}
static public unsafe bool RhBoxAndNullCheck(ref byte data, EETypePtr pEEType)
{
EEType* ptrEEType = (EEType*)pEEType.ToPointer();
if (ptrEEType->IsValueType)
return true;
else
return Unsafe.As<byte, Object>(ref data) != null;
}
public static unsafe EETypePtr RhGetInterface(EETypePtr ptrEEType, uint index)
{
EEType* pEEType = ptrEEType.ToPointer();
// The convoluted pointer arithmetic into the interface map below (rather than a simply array
// dereference) is because C# will generate a 64-bit multiply for the lookup by default. This
// causes us a problem on x86 because it uses a helper that's mapped directly into the CRT via
// import magic and that technique doesn't work with the way we link this code into the runtime
// image. Since we don't need a 64-bit multiply here (the classlib is trusted code) we manually
// perform the calculation.
EEInterfaceInfo* pInfo = (EEInterfaceInfo*)((byte*)pEEType->InterfaceMap + (index * (uint)sizeof(EEInterfaceInfo)));
return new EETypePtr((IntPtr)pInfo->InterfaceType);
}
public unsafe static object RhBoxAny(ref byte data, EETypePtr pEEType)
{
EEType* ptrEEType = (EEType*)pEEType.ToPointer();
if (ptrEEType->IsValueType)
{
return RhBox(pEEType, ref data);
}
else
{
return Unsafe.As<byte, Object>(ref data);
}
}
public static unsafe bool RhIsDynamicType(EETypePtr ptrEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
return pEEType->IsDynamicType;
}
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) || (o.EEType == ptrUnboxToEEType->GetNullableType());
else
isValid = (o != null && o.EEType->CorElementType == ptrUnboxToEEType->CorElementType && TypeCast.IsInstanceOfClass(o, ptrUnboxToEEType) != null);
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
data.o = o;
}
public static unsafe bool RhIsInterface(EETypePtr ptrEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
return pEEType->IsInterface;
}
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)
{
IntPtr addr = ptrUnboxToEEType->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(ExceptionIDs.InvalidCast, addr);
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;
}
}
public static unsafe bool RhIsString(EETypePtr ptrEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
// String is currently the only non-array type with a non-zero component size.
return (pEEType->ComponentSize == sizeof(char)) && !pEEType->IsArray;
}
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()))
{
IntPtr addr = ptrUnboxToEEType->GetAssociatedModuleAddress();
Exception e = EH.GetClasslibException(ExceptionIDs.InvalidCast, addr);
BinderIntrinsics.TailCall_RhpThrowEx(e);
}
InternalCalls.RhUnbox(obj, pData - 1, ptrUnboxToEEType);
}
}
public static unsafe EETypePtr RhGetNullableType(EETypePtr ptrEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
return new EETypePtr((IntPtr)pEEType->GetNullableType());
}
static public unsafe bool RhBoxAndNullCheck(ref Hack_o_p data, EETypePtr pEEType)
{
EEType* ptrEEType = (EEType*)pEEType.ToPointer();
if (ptrEEType->IsValueType)
return true;
else
return data.o != null;
}
public static unsafe byte RhGetCorElementType(EETypePtr ptrEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
return (byte)pEEType->CorElementType;
}
public unsafe static object RhAllocLocal(EETypePtr pEEType)
{
EEType* ptrEEType = (EEType*)pEEType.ToPointer();
if (ptrEEType->IsValueType)
{
#if FEATURE_64BIT_ALIGNMENT
if (ptrEEType->RequiresAlign8)
return InternalCalls.RhpNewFastMisalign(ptrEEType);
#endif
return InternalCalls.RhpNewFast(ptrEEType);
}
else
return new Wrapper();
}
public static unsafe uint RhGetEETypeHash(EETypePtr ptrEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
return pEEType->HashCode;
}
public static unsafe EETypePtr RhGetRelatedParameterType(EETypePtr ptrEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
return new EETypePtr((IntPtr)pEEType->RelatedParameterType);
}
public unsafe static object RhBoxAny(ref Hack_o_p data, EETypePtr pEEType)
{
EEType* ptrEEType = (EEType*)pEEType.ToPointer();
if (ptrEEType->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)
return RhBox(pEEType, pData - 1);
}
else
return data.o;
}
public static unsafe EETypePtr RhGetNonArrayBaseType(EETypePtr ptrEEType)
{
EEType* pEEType = ptrEEType.ToPointer();
return new EETypePtr((IntPtr)pEEType->NonArrayBaseType);
}
