static unsafe void InternalSetValue(void *typedref, void *objval)
{
// get the type from the typed reference to see if we need to unbox the object
// or store as a reference type
void *et = *(void **)((byte *)typedref + ClassOperations.GetTypedReferenceTypeOffset());
void *ptr = *(void **)((byte *)typedref + ClassOperations.GetTypedReferenceValueOffset());
void *etextends = *(void **)((byte *)et + ClassOperations.GetVtblExtendsVtblPtrOffset());
if (etextends == OtherOperations.GetStaticObjectAddress("_Zu1L") ||
etextends == OtherOperations.GetStaticObjectAddress("_ZW6System4Enum"))
{
// this is a boxed value type. Get its size
var vt_size = TysosType.GetValueTypeSize(et);
// src ptr
void *src = *(void **)((byte *)objval + ClassOperations.GetBoxedTypeDataOffset());
CopyMem((byte *)ptr, (byte *)src, vt_size);
}
else
{
// simply copy the reference
*(void **)ptr = objval;
}
}
static unsafe void *InternalToObject(void *typedref)
{
// get the type from the typed reference to see if we need to box the object
// or simply return the address as a reference type
void *et = *(void **)((byte *)typedref + ClassOperations.GetTypedReferenceTypeOffset());
void *src = *(void **)((byte *)typedref + ClassOperations.GetTypedReferenceValueOffset());
void *etextends = *(void **)((byte *)et + ClassOperations.GetVtblExtendsVtblPtrOffset());
if (etextends == OtherOperations.GetStaticObjectAddress("_Zu1L") ||
etextends == OtherOperations.GetStaticObjectAddress("_ZW6System4Enum"))
{
// this is a boxed value type. Get its size
var vt_size = TysosType.GetValueTypeSize(et);
// build a new boxed type
var ret = MemoryOperations.GcMalloc(*(int *)((byte *)et + ClassOperations.GetVtblTypeSizeOffset()));
// dst ptr
var dst = (byte *)ret + ClassOperations.GetBoxedTypeDataOffset();
CopyMem(dst, (byte *)src, vt_size);
return(ret);
}
else
{
// simply copy the reference
return(*(void **)src);
}
}
static unsafe void *GetValueImpl(void *arr, int pos)
{
/* Get the element type of the array */
void *et = *(void **)((byte *)arr + ArrayOperations.GetElemTypeOffset());
/* Get a pointer to the source data */
var elem_size = *(int *)((byte *)arr + ArrayOperations.GetElemSizeOffset());
void *ia = *(void **)((byte *)arr + ArrayOperations.GetInnerArrayOffset());
void *sptr = (void *)((byte *)ia + pos * elem_size);
/* Is this a value type? In which case we need to return a boxed value */
void *extends = *(void **)((byte *)et + ClassOperations.GetVtblExtendsVtblPtrOffset());
if (extends == OtherOperations.GetStaticObjectAddress("_Zu1L") ||
extends == OtherOperations.GetStaticObjectAddress("_ZW6System4Enum"))
{
/* This is a value type. We need to read the size of the element,
* create a new object of the appropriate size and copy the data
* into it */
byte *ret = (byte *)MemoryOperations.GcMalloc(elem_size + ClassOperations.GetBoxedTypeDataOffset());
*(void **)(ret + ClassOperations.GetVtblFieldOffset()) = et;
*(ulong *)(ret + ClassOperations.GetMutexLockOffset()) = 0;
/* Avoid calls to memcpy if possible */
switch (elem_size)
{
case 1:
*(byte *)(ret + ClassOperations.GetBoxedTypeDataOffset()) = *(byte *)sptr;
return(ret);
case 2:
*(ushort *)(ret + ClassOperations.GetBoxedTypeDataOffset()) = *(ushort *)sptr;
return(ret);
case 4:
*(uint *)(ret + ClassOperations.GetBoxedTypeDataOffset()) = *(uint *)sptr;
return(ret);
case 8:
if (OtherOperations.GetPointerSize() >= 8)
{
*(ulong *)(ret + ClassOperations.GetBoxedTypeDataOffset()) = *(ulong *)sptr;
return(ret);
}
else
{
*(uint *)(ret + ClassOperations.GetBoxedTypeDataOffset()) = *(uint *)sptr;
*(uint *)(ret + ClassOperations.GetBoxedTypeDataOffset() + 4) = *(uint *)((byte *)sptr + 4);
return(ret);
}
case 16:
if (OtherOperations.GetPointerSize() >= 8)
{
*(ulong *)(ret + ClassOperations.GetBoxedTypeDataOffset()) = *(ulong *)sptr;
*(ulong *)(ret + ClassOperations.GetBoxedTypeDataOffset() + 8) = *(ulong *)((byte *)sptr + 8);
return(ret);
}
else
{
*(uint *)(ret + ClassOperations.GetBoxedTypeDataOffset()) = *(uint *)sptr;
*(uint *)(ret + ClassOperations.GetBoxedTypeDataOffset() + 4) = *(uint *)((byte *)sptr + 4);
*(uint *)(ret + ClassOperations.GetBoxedTypeDataOffset() + 8) = *(uint *)((byte *)sptr + 8);
*(uint *)(ret + ClassOperations.GetBoxedTypeDataOffset() + 12) = *(uint *)((byte *)sptr + 12);
return(ret);
}
}
/* Do data copy via memcpy */
MemoryOperations.MemCpy(ret + ClassOperations.GetBoxedTypeDataOffset(),
sptr, elem_size);
return(ret);
}
else
{
/* Its a reference type, so just return the pointer */
return(*(void **)sptr);
}
}