public BMC()
{
CodeInput = new antlr.LexerSharedInputState(new StringReader(String.Empty));
Lexer = new BoolLexer(CodeInput);
Parser = new BoolParser(Lexer);
ErrorLog = String.Empty;
BoolProgAST = (CommonAST)Parser.getAST();
m_BddManager = new BddManager();
ProgramCFG = new CFG(BoolProgAST, m_BddManager);
m_PathEdges = new Dictionary <CFGNode, PathEdges>();
m_SummaryEdges = new Dictionary <CFGNode, Bdd>();
}
public bool ParseProgram(string BooleanProgram)
{
bool Succesful = true;
try
{
ErrorLog = String.Empty;
Lexer.resetState(new StringReader(BooleanProgram));
Parser.resetState();
StringWriter ErrorLogger = new StringWriter();
Console.SetError(ErrorLogger);
Parser.prog();
ErrorLog = ErrorLogger.ToString();
if (ErrorLog.Equals(String.Empty))
{
ErrorLog += "Syntax validation completed without errors.\n";
BoolProgAST = (CommonAST)Parser.getAST();
}
else
{
Succesful = false;
}
}
catch (TokenStreamException err)
{
ErrorLog += ("exception: " + err.ToString() + "\n");
Succesful = false;
}
catch (RecognitionException err)
{
ErrorLog += ("exception: " + err.ToString() + "\n");
Succesful = false;
}
if (Succesful)
{
BoolSemantics.BoolProgramChecker SemanticChecker =
new BoolSemantics.BoolProgramChecker(BoolProgAST);
List <BoolSemantics.SemanticError> Errors = SemanticChecker.Check();
if (Errors.Count == 0)
{
ErrorLog += "Semantic validation completed without errors.\n";
BuildCFG();
}
else
{
ErrorLog += "\n";
foreach (BoolSemantics.SemanticError Error in Errors)
{
ErrorLog += Error.ToString() + "\n";
}
BoolProgAST = null;
}
}
return(Succesful);
}
