public void AddUsing (UsingClause un)
{
if (DeclarationFound){
Compiler.Report.Error (1529, un.Location, "A using clause must precede all other namespace elements except extern alias declarations");
}
if (clauses == null)
clauses = new List<UsingClause> ();
clauses.Add (un);
}
public virtual void Visit (UsingClause usingClause)
{
}
void Warning_DuplicateEntry (UsingClause entry)
{
Compiler.Report.Warning (105, 3, entry.Location,
"The using directive for `{0}' appeared previously in this namespace",
entry.ResolvedExpression.GetSignatureForError ());
}
public override void Visit(UsingClause un)
{
var ud = new UsingDeclaration();
var loc = LocationsBag.GetLocations(un);
ud.AddChild(new CSharpTokenNode(Convert(un.Location), UsingDeclaration.UsingKeywordRole), UsingDeclaration.UsingKeywordRole);
if (un.NamespaceExpression != null)
ud.AddChild(ConvertToType(un.NamespaceExpression), UsingDeclaration.ImportRole);
if (loc != null)
ud.AddChild(new CSharpTokenNode(Convert(loc [0]), Roles.Semicolon), Roles.Semicolon);
AddToNamespace(ud);
}