diff options
Diffstat (limited to 'BaseTools/Source/C/VfrCompile/Pccts/h/ATokPtrImpl.h')
-rw-r--r-- | BaseTools/Source/C/VfrCompile/Pccts/h/ATokPtrImpl.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/BaseTools/Source/C/VfrCompile/Pccts/h/ATokPtrImpl.h b/BaseTools/Source/C/VfrCompile/Pccts/h/ATokPtrImpl.h new file mode 100644 index 0000000000..9c07cf52a9 --- /dev/null +++ b/BaseTools/Source/C/VfrCompile/Pccts/h/ATokPtrImpl.h @@ -0,0 +1,88 @@ +/*
+ * 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;
+}
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