| 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 |  |