public static unsafe void DestroyStructure(IntPtr ptr, Type structuretype)
{
if (ptr == IntPtr.Zero)
{
throw new ArgumentNullException(nameof(ptr));
}
if (structuretype == null)
{
throw new ArgumentNullException(nameof(structuretype));
}
RuntimeTypeHandle structureTypeHandle = structuretype.TypeHandle;
if (structureTypeHandle.IsGenericType() || structureTypeHandle.IsGenericTypeDefinition())
{
throw new ArgumentException(SR.Argument_NeedNonGenericType, "t");
}
if (structureTypeHandle.IsEnum() ||
structureTypeHandle.IsInterface() ||
InteropExtensions.AreTypesAssignable(typeof(Delegate).TypeHandle, structureTypeHandle))
{
throw new ArgumentException(SR.Format(SR.Argument_MustHaveLayoutOrBeBlittable, structureTypeHandle.LastResortToString));
}
if (structureTypeHandle.IsBlittable())
{
// ok to call with blittable structure, but no work to do in this case.
return;
}
IntPtr destroyStructureStub = RuntimeAugments.InteropCallbacks.GetDestroyStructureStub(structureTypeHandle, out bool hasInvalidLayout);
if (hasInvalidLayout)
{
throw new ArgumentException(SR.Format(SR.Argument_MustHaveLayoutOrBeBlittable, structureTypeHandle.LastResortToString));
}
// DestroyStructureStub == IntPtr.Zero means its fields don't need to be destroied
if (destroyStructureStub != IntPtr.Zero)
{
CalliIntrinsics.Call <int>(
destroyStructureStub,
(void *)ptr // unsafe (no need to adjust as it is always struct)
);
}
}
public static unsafe void DestroyStructure(IntPtr ptr, Type structuretype)
{
if (ptr == IntPtr.Zero)
{
throw new ArgumentNullException(nameof(ptr));
}
if (structuretype == null)
{
throw new ArgumentNullException(nameof(structuretype));
}
RuntimeTypeHandle structureTypeHandle = structuretype.TypeHandle;
if (structureTypeHandle.IsGenericType() || structureTypeHandle.IsGenericTypeDefinition())
{
throw new ArgumentException(SR.Argument_NeedNonGenericType, nameof(structuretype));
}
if (structureTypeHandle.IsEnum() ||
structureTypeHandle.IsInterface() ||
InteropExtensions.AreTypesAssignable(typeof(Delegate).TypeHandle, structureTypeHandle))
{
throw new ArgumentException(SR.Format(SR.Argument_MustHaveLayoutOrBeBlittable, structureTypeHandle.LastResortToString));
}
if (structureTypeHandle.IsBlittable())
{
// ok to call with blittable structure, but no work to do in this case.
return;
}
IntPtr destroyStructureStub = RuntimeInteropData.GetDestroyStructureStub(structureTypeHandle, out bool hasInvalidLayout);
if (hasInvalidLayout)
{
throw new ArgumentException(SR.Format(SR.Argument_MustHaveLayoutOrBeBlittable, structureTypeHandle.LastResortToString));
}
// DestroyStructureStub == IntPtr.Zero means its fields don't need to be destroyed
if (destroyStructureStub != IntPtr.Zero)
{
((delegate * < ref byte, void >)destroyStructureStub)(ref *(byte *)ptr);
}
}
