Method AddPropertyToClass

sdk/angelscript/source/as_objecttype.cpp:511–586

internal

// internal
asCObjectProperty *asCObjectType::AddPropertyToClass(const asCString &propName, const asCDataType &dt, bool isPrivate, bool isProtected, bool isInherited)
{
	asASSERT( flags & asOBJ_SCRIPT_OBJECT );
	asASSERT( dt.CanBeInstantiated() );
	asASSERT( !IsInterface() );

	// Store the properties in the object type descriptor
	asCObjectProperty *prop = asNEW(asCObjectProperty);
	if( prop == 0 )
	{
		// Out of memory
		return 0;
	}

	prop->name        = propName;
	prop->type        = dt;
	prop->isPrivate   = isPrivate;
	prop->isProtected = isProtected;
	prop->isInherited = isInherited;

	int propSize;
	if( dt.IsObject() )
	{
		// Non-POD value types can't be allocated inline,
		// because there is a risk that the script might
		// try to access the content without knowing that
		// it hasn't been initialized yet.
		if( dt.GetTypeInfo()->flags & asOBJ_POD )
			propSize = dt.GetSizeInMemoryBytes();
		else
		{
			propSize = dt.GetSizeOnStackDWords()*4;
			if( !dt.IsObjectHandle() )
				prop->type.MakeReference(true);
		}
	}
	else if (dt.IsFuncdef())
	{
		// Funcdefs don't have a size, as they must always be stored as handles
		asASSERT(dt.IsObjectHandle());
		propSize = AS_PTR_SIZE * 4;
	}
	else
		propSize = dt.GetSizeInMemoryBytes();

	// Add extra bytes so that the property will be properly aligned
#ifndef WIP_16BYTE_ALIGN
	if( propSize == 2 && (size & 1) ) size += 1;
	if( propSize > 2 && (size & 3) ) size += 4 - (size & 3);
#else
	asUINT alignment = dt.GetAlignment();
	const asUINT propSizeAlignmentDifference = size & (alignment-1);
	if( propSizeAlignmentDifference != 0 )
	{
		size += (alignment - propSizeAlignmentDifference);
	}

	asASSERT((size % alignment) == 0);