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/* ANTLR Translator Generator
* Project led by Terence Parr at http://www.jGuru.com
* Software rights: http://www.antlr.org/license.html
*
* $Id$
*/
#include "antlr/TreeParser.h"
#include "antlr/ASTNULLType.h"
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
namespace antlr {
#endif
/** The AST Null object; the parsing cursor is set to this when
* it is found to be null. This way, we can test the
* token type of a node without having to have tests for null
* everywhere.
*/
RefAST TreeParser::ASTNULL(new ASTNULLType);
/** Parser error-reporting function can be overridden in subclass */
void TreeParser::reportError(const RecognitionException& ex)
{
ANTLR_USE_NAMESPACE(std)cerr << ex.toString().c_str() << ANTLR_USE_NAMESPACE(std)endl;
}
/** Parser error-reporting function can be overridden in subclass */
void TreeParser::reportError(const ANTLR_USE_NAMESPACE(std)string& s)
{
ANTLR_USE_NAMESPACE(std)cerr << "error: " << s.c_str() << ANTLR_USE_NAMESPACE(std)endl;
}
/** Parser warning-reporting function can be overridden in subclass */
void TreeParser::reportWarning(const ANTLR_USE_NAMESPACE(std)string& s)
{
ANTLR_USE_NAMESPACE(std)cerr << "warning: " << s.c_str() << ANTLR_USE_NAMESPACE(std)endl;
}
/** Procedure to write out an indent for traceIn and traceOut */
void TreeParser::traceIndent()
{
for( int i = 0; i < traceDepth; i++ )
ANTLR_USE_NAMESPACE(std)cout << " ";
}
void TreeParser::traceIn(const char* rname, RefAST t)
{
traceDepth++;
traceIndent();
ANTLR_USE_NAMESPACE(std)cout << "> " << rname
<< "(" << (t ? t->toString().c_str() : "null") << ")"
<< ((inputState->guessing>0)?" [guessing]":"")
<< ANTLR_USE_NAMESPACE(std)endl;
}
void TreeParser::traceOut(const char* rname, RefAST t)
{
traceIndent();
ANTLR_USE_NAMESPACE(std)cout << "< " << rname
<< "(" << (t ? t->toString().c_str() : "null") << ")"
<< ((inputState->guessing>0)?" [guessing]":"")
<< ANTLR_USE_NAMESPACE(std)endl;
traceDepth--;
}
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
}
#endif
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