30fdf1140b
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@8964 6f19259b-4bc3-4df7-8a09-765794883524
89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
/*
|
|
* ATokPtrImpl.h (formerly ATokPtr.cpp)
|
|
*
|
|
* This is #included in ATokBuffer.cpp for historical reasons.
|
|
* It has been renamed because of problems with the .cpp extension
|
|
* when used with IDE.
|
|
*
|
|
*
|
|
* ANTLRToken MUST be defined before entry to this file.
|
|
*
|
|
* SOFTWARE RIGHTS
|
|
*
|
|
* We reserve no LEGAL rights to the Purdue Compiler Construction Tool
|
|
* Set (PCCTS) -- PCCTS is in the public domain. An individual or
|
|
* company may do whatever they wish with source code distributed with
|
|
* PCCTS or the code generated by PCCTS, including the incorporation of
|
|
* PCCTS, or its output, into commerical software.
|
|
*
|
|
* We encourage users to develop software with PCCTS. However, we do ask
|
|
* that credit is given to us for developing PCCTS. By "credit",
|
|
* we mean that if you incorporate our source code into one of your
|
|
* programs (commercial product, research project, or otherwise) that you
|
|
* acknowledge this fact somewhere in the documentation, research report,
|
|
* etc... If you like PCCTS and have developed a nice tool with the
|
|
* output, please mention that you developed it using PCCTS. In
|
|
* addition, we ask that this header remain intact in our source code.
|
|
* As long as these guidelines are kept, we expect to continue enhancing
|
|
* this system and expect to make other tools available as they are
|
|
* completed.
|
|
*
|
|
* ANTLR 1.33
|
|
* Written by Russell Quong June 30, 1995
|
|
* Adapted by Terence Parr to ANTLR stuff
|
|
* Parr Research Corporation
|
|
* with Purdue University and AHPCRC, University of Minnesota
|
|
* 1989-2000
|
|
*/
|
|
|
|
#include "pcctscfg.h"
|
|
|
|
PCCTS_NAMESPACE_STD
|
|
|
|
#include "ATokPtr.h"
|
|
|
|
void ANTLRTokenPtr::ref() const
|
|
{
|
|
if (ptr_ != NULL) {
|
|
ptr_->ref();
|
|
}
|
|
}
|
|
|
|
void ANTLRTokenPtr::deref()
|
|
{
|
|
if (ptr_ != NULL)
|
|
{
|
|
ptr_->deref();
|
|
if ( ptr_->nref()==0 )
|
|
{
|
|
delete ptr_;
|
|
ptr_ = NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
ANTLRTokenPtr::~ANTLRTokenPtr()
|
|
{
|
|
deref();
|
|
}
|
|
|
|
//
|
|
// 8-Apr-97 MR1 Make operator -> a const member function
|
|
// as weall as some other member functions
|
|
//
|
|
void ANTLRTokenPtr::operator = (const ANTLRTokenPtr & lhs) // MR1
|
|
{
|
|
lhs.ref(); // protect against "xp = xp"; ie same underlying object
|
|
deref();
|
|
ptr_ = lhs.ptr_;
|
|
}
|
|
|
|
void ANTLRTokenPtr::operator = (ANTLRAbstractToken *addr)
|
|
{
|
|
if (addr != NULL) {
|
|
addr->ref();
|
|
}
|
|
deref();
|
|
ptr_ = addr;
|
|
}
|