Security-55471.tar.gz

[apple/security.git] / libsecurity_codesigning / antlr2 / antlr / ParserSharedInputState.hpp

diff --git a/libsecurity_codesigning/antlr2/antlr/ParserSharedInputState.hpp b/libsecurity_codesigning/antlr2/antlr/ParserSharedInputState.hpp
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+++ b/libsecurity_codesigning/antlr2/antlr/ParserSharedInputState.hpp
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+#ifndef INC_ParserSharedInputState_hpp__
+#define INC_ParserSharedInputState_hpp__
+
+/* ANTLR Translator Generator
+ * Project led by Terence Parr at http://www.jGuru.com
+ * Software rights: http://www.antlr.org/license.html
+ *
+ * $Id: //depot/code/org.antlr/release/antlr-2.7.7/lib/cpp/antlr/ParserSharedInputState.hpp#2 $
+ */
+
+#include <antlr/config.hpp>
+#include <antlr/TokenBuffer.hpp>
+#include <antlr/RefCount.hpp>
+#include <string>
+
+#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
+namespace antlr {
+#endif
+
+/** This object contains the data associated with an
+ * input stream of tokens.  Multiple parsers
+ * share a single ParserSharedInputState to parse
+ * the same stream of tokens.
+ */
+class ANTLR_API ParserInputState {
+public:
+       /** Construct a new ParserInputState
+        * @param in the TokenBuffer to read from. The object is deleted together
+        * with the ParserInputState object.
+        */
+       ParserInputState( TokenBuffer* in )
+       : guessing(0)
+       , filename()
+       , input(in)
+       , inputResponsible(true)
+       {
+       }
+       /** Construct a new ParserInputState
+        * @param in the TokenBuffer to read from.
+        */
+       ParserInputState( TokenBuffer& in )
+       : guessing(0)
+       , filename("")
+       , input(&in)
+       , inputResponsible(false)
+       {
+       }
+
+       virtual ~ParserInputState()
+       {
+               if (inputResponsible)
+                       delete input;
+       }
+
+       TokenBuffer& getInput( void )
+       {
+               return *input;
+       }
+
+       /// Reset the ParserInputState and the underlying TokenBuffer
+       void reset( void )
+       {
+               input->reset();
+               guessing = 0;
+       }
+
+public:
+       /** Are we guessing (guessing>0)? */
+       int guessing;
+       /** What file (if known) caused the problem?
+        * @todo wrap this one..
+        */
+       ANTLR_USE_NAMESPACE(std)string filename;
+private:
+       /** Where to get token objects */
+       TokenBuffer* input;
+       /// Do we need to free the TokenBuffer or is it owned by another..
+       bool inputResponsible;
+
+       // we don't want these:
+       ParserInputState(const ParserInputState&);
+       ParserInputState& operator=(const ParserInputState&);
+};
+
+/// A reference counted ParserInputState
+typedef RefCount<ParserInputState> ParserSharedInputState;
+
+#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
+}
+#endif
+
+#endif //INC_ParserSharedInputState_hpp__