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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
11 namespace antlr {
12 #endif
13
14 TokenRef::TokenRef(Token* p)
15 : ptr(p), count(1)
16 {
17 if (p && !p->ref)
18 p->ref = this;
19 }
20
21 TokenRef::~TokenRef()
22 {
23 delete ptr;
24 }
25
26 TokenRef* 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