void CheckBaseTypes(ClassDefinition node)
{
IType baseClass = null;
foreach (TypeReference baseTypeRef in node.BaseTypes)
{
IType baseType = GetType(baseTypeRef);
if (baseType.IsInterface)
{
continue;
}
if (null != baseClass)
{
Error(CompilerErrorFactory.ClassAlreadyHasBaseType(baseTypeRef, node.Name, baseClass));
continue;
}
baseClass = baseType;
if (baseClass.IsFinal && !TypeSystemServices.IsError(baseClass))
{
Error(CompilerErrorFactory.CannotExtendFinalType(baseTypeRef, baseClass));
}
}
if (null == baseClass)
{
node.BaseTypes.Insert(0, CodeBuilder.CreateTypeReference(TypeSystemServices.ObjectType));
}
}
