TokenRefCount.cpp

/* ANTLR Translator Generator
 * Project led by Terence Parr at http://www.jGuru.com
 * Software rights: http://www.antlr.org/license.html
 *
 * $Id$
 */
#include "antlr/TokenRefCount.hpp"
#include "antlr/Token.hpp"
 
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
namespace antlr {
#endif
 
TokenRef::TokenRef(Token* p)
: ptr(p), count(1)
{
        if (p && !p->ref)
                p->ref = this;
}
 
TokenRef::~TokenRef()
{
        delete ptr;
}
 
TokenRef* TokenRef::getRef(const Token* p)
{
        if (p) {
                Token* pp = const_cast<Token*>(p);
                if (pp->ref)
                        return pp->ref->increment();
                else
                        return new TokenRef(pp);
        } else
                return 0;
}
 
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
}
#endif