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