private void ExpandType(TypeNameMember typeName)
{
// Circular references are wrong.
AstNode typedefNode = typeName.GetTypedefNode();
if(typeName.IsExpanding)
Error(typedefNode, "typedef with circular reference.");
// Ignore expanded types.
IChelaType type = typeName.GetActualType();
if(!type.IsIncompleteType())
return;
// Set the expanding flag.
typeName.IsExpanding = true;
// Expand the dependencies first.
IncompleteType incomplete = (IncompleteType)type;
foreach(TypeNameMember dep in incomplete.Dependencies)
ExpandType(dep);
// Expand the type name itself.
ExpandTypeNode((TypedefDefinition)typedefNode, true);
// Unset the expanding flag.
typeName.IsExpanding = false;
}
public IncompleteType(List <object> vector)
{
// Read the type names.
List <TypeNameMember> incompletes = new List <TypeNameMember> ();
foreach (object dep in vector)
{
TypeNameMember typeName = dep as TypeNameMember;
if (typeName != null)
{
incompletes.Add(typeName);
}
else
{
IncompleteType inc = (IncompleteType)dep;
foreach (TypeNameMember incTypeName in inc.Dependencies)
{
incompletes.Add(incTypeName);
}
}
}
// Create the dependencies array.
deps = incompletes.ToArray();
}
internal static void PreloadMember(ChelaModule module, ModuleReader reader, MemberHeader header)
{
// Create the temporal type name and register it.
TypeNameMember typeName = new TypeNameMember(module);
module.RegisterMember(typeName);
// Read the name and flags.
typeName.name = module.GetString(header.memberName);
typeName.flags = (MemberFlags)header.memberFlags;
// Skip the structure elements.
reader.Skip(header.memberSize);
}
internal static void PreloadMember(ChelaModule module, ModuleReader reader, MemberHeader header)
{
// Create the temporal type name and register it.
TypeNameMember typeName = new TypeNameMember(module);
module.RegisterMember(typeName);
// Read the name and flags.
typeName.name = module.GetString(header.memberName);
typeName.flags = (MemberFlags)header.memberFlags;
// Skip the structure elements.
reader.Skip(header.memberSize);
}
public void SetTypeName(TypeNameMember typeName)
{
this.typeName = typeName;
}
public override AstNode Visit(TypedefDefinition node)
{
// Prevent redefinition.
ScopeMember old = currentContainer.FindMember(node.GetName());
if(old != null)
Error(node, "trying to redefine a typedef.");
// Create the type name.
TypeNameMember typeName = new TypeNameMember(node.GetFlags(), node.GetName(), currentContainer);
typeName.SetTypedefNode(node);
node.SetTypeName(typeName);
// Register the type name.
if(currentContainer.IsNamespace())
{
Namespace space = (Namespace)currentContainer;
space.AddMember(typeName);
}
else if(currentContainer.IsStructure() || currentContainer.IsClass())
{
Structure parent = (Structure)currentContainer;
parent.AddTypeName(typeName);
}
else
{
Error(node, "unexpected place for a typedef.");
}
return node;
}