1/* ANTLR Translator Generator
2 * Project led by Terence Parr at http://www.jGuru.com
3 * Software rights: http://www.antlr.org/license.html
4 *
5 * $Id:$
6 */
7#include "antlr/TokenRefCount.hpp"
8#include "antlr/Token.hpp"
9
10#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
11namespace antlr {
12#endif
13
14TokenRef::TokenRef(Token* p)
15: ptr(p), count(1)
16{
17	if (p && !p->ref)
18		p->ref = this;
19}
20
21TokenRef::~TokenRef()
22{
23	delete ptr;
24}
25
26TokenRef* TokenRef::getRef(const Token* p)
27{
28	if (p) {
29		Token* pp = const_cast<Token*>(p);
30		if (pp->ref)
31			return pp->ref->increment();
32		else
33			return new TokenRef(pp);
34	} else
35		return 0;
36}
37
38#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
39}
40#endif
41
42