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// file : CCF/IDL2/SemanticAction/Impl/Elements.cpp
// author : Boris Kolpackov <boris@dre.vanderbilt.edu>
// cvs-id : $Id$
#include "CCF/IDL2/SemanticAction/Impl/Elements.hpp"
#include <iostream>
using std::cerr;
using std::endl;
namespace
{
bool trace (false);
}
namespace CCF
{
namespace IDL2
{
namespace SemanticAction
{
namespace Impl
{
// @@ Need pointer iterator adapter.
using namespace SemanticGraph;
using SemanticGraph::Scope;
Nameables
resolve (TranslationUnit& tu,
ScopedName const& from,
Name const& name) throw (NotFound)
{
if (trace) cerr << "resolve: starting resolution process for \'"
<< name << "\' from \'" << from << "\'" << endl;
Nameables r;
// Check if name is already scoped.
//
if (name.scoped ())
{
r = tu.lookup (ScopedName (name));
}
else
{
// Obtain all nodes corresponding to this scope name.
//
for (ScopedName next (from);;)
{
Nameables scopes (tu.lookup (next));
// Lookup the name in each scope.
//
for (Nameables::const_iterator
i (scopes.begin ()), end (scopes.end ());
i != end; ++i)
{
if (Scope* s = dynamic_cast<Scope*> (*i))
{
s->lookup (name, r);
}
}
if (r.begin () != r.end () || next.simple ())
{
// Found something -or- at the root scope.
//
break;
}
next = ScopedName (next.begin (), next.end () - 1);
}
}
if (r.begin () == r.end ())
{
if (trace) cerr << "resolve: resolution process for \'"
<< name << "\' from \'" << from << "\' failed."
<< endl;
throw NotFound ();
}
else
{
if (trace) cerr << "resolve: resolution process for \'"
<< name << "\' from \'" << from << "\' succeeded:"
<< endl;
for (Nameables::const_iterator i (r.begin ()), end (r.end ());
i != end; ++i)
{
if (trace) cerr << "\t\'" << (**i).scoped_name () << "\'"
<< endl;
}
}
return r;
}
// Lookup *all* scopes for a simple name
//
//
Nameable*
lookup (SemanticGraph::TranslationUnit& tu,
SemanticGraph::Scope& in,
SemanticGraph::SimpleName const& name) throw (NotUnique)
{
Nameables r;
Nameables scopes (tu.lookup (in.scoped_name ()));
for (Nameables::const_iterator
i (scopes.begin ()), end (scopes.end ());
i != end; ++i)
{
dynamic_cast<Scope&> (**i).lookup (name, r);
}
if (r.size () > 1) throw NotUnique ();
if (r.empty ()) return 0;
return *(r.begin ());
}
}
}
}
}
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