public virtual object VisitUsingDirective(UsingDirectiveNode @using, object data)
{
stackMap.Push(@using);
if (@using.AliasName != null)
{
@using.AliasName.AcceptVisitor(this, data);
}
@using.Target.AcceptVisitor(this, data);
stackMap.Pop();
return(null);
}
private void ParseUsingDirectives()
{
do
{
Advance();
UsingDirectiveNode node = new UsingDirectiveNode(curtok);
QualifiedIdentifierExpression nameOrAlias = ParseQualifiedIdentifier(true, false, false);
if (curtok.ID == TokenID.Equal)
{
Advance();
// an alias could be write like
// using alias = path.identifier
//
// or like
// using alias = path.identifier<object>
//
// is not possible to know before if this a type or an qualified identifier
// so we always parse it as a Qualified expression, and if the result is not a type
// we keep only the identifier part
QualifiedIdentifierExpression target = ParseQualifiedIdentifier(true, false, false);
if (target.IsType)
{
node.Target = new TypeNode( target );
}
else
{
// it does not mean that this is not a type.
// it only means that actually we can not resolve the type
// but in a next stage, we wiil probably resolve it as a type.
node.Target = target;
}
node.AliasName = nameOrAlias;
}
else
{
node.Target = nameOrAlias;
}
AssertAndAdvance(TokenID.Semi);
namespaceStack.Peek().UsingDirectives.Add(node);
this.currentContext.AddUsingDirective(node);
} while (curtok.ID == TokenID.Using);
}
public virtual object VisitUsingDirective(UsingDirectiveNode @using, object data)
{
stackMap.Push(@using);
if (@using.AliasName != null)
{
@using.AliasName.AcceptVisitor(this, data);
}
@using.Target.AcceptVisitor(this, data);
stackMap.Pop();
return null;
}