public void AddType(Structure type)
{
// Find the previous group.
ScopeMember oldMember = FindMember(type.GetName());
if (oldMember != null)
{
if (!oldMember.IsTypeGroup())
{
throw new ModuleException("expected type group.");
}
// Find the previous definition.
TypeGroup oldGroup = (TypeGroup)oldMember;
if (oldGroup.Find(type.GetGenericPrototype()) != null)
{
throw new ModuleException("matching type already exists.");
}
// Add the type into the group.
oldGroup.Insert(type);
}
else
{
// Create a new type group.
TypeGroup newGroup = new TypeGroup(type.GetName(), this);
newGroup.Insert(type);
AddMember(newGroup);
}
}
public virtual Structure FindType(string name, GenericPrototype prototype)
{
// Find the member.
ScopeMember member = FindMember(name);
if (member == null)
{
return(null);
}
// Use the matching type in the type group.
if (member.IsTypeGroup())
{
TypeGroup group = (TypeGroup)member;
return(group.Find(prototype));
}
else if (!member.IsClass() && !member.IsInterface() && !member.IsStructure())
{
throw new ModuleException("found no structural type " + member.GetFullName());
}
// Cast the member.
return((Structure)member);
}