public FileParseResult ParseProtoFile(string content)
{
var lexer = new GrammarLexer(new AntlrInputStream(content));
lexer.RemoveErrorListeners();
var tokens = new CommonTokenStream(lexer);
var parser = new GrammarParser(tokens);
var tree = parser.instructions();
var result = _mainVisitor.Visit(tree);
return((FileParseResult)result);
}
public void TestGrammarError(String path, ErrorCode expectedError)
{
StreamReader pom = new System.IO.StreamReader(path);
ErrorHandler handler = new ErrorHandler();
AntlrInputStream inputStream = new AntlrInputStream(pom);
GrammarLexer lexer = new GrammarLexer(inputStream);
lexer.RemoveErrorListeners();
lexer.AddErrorListener(new GrammarErrorListener(handler));
CommonTokenStream c = new CommonTokenStream(lexer);
GrammarParser helloParser = new GrammarParser(c);
helloParser.RemoveErrorListeners();
helloParser.AddErrorListener(new GrammarErrorListener(handler));
try
{
IParseTree tree = helloParser.start();
pom.Close();
if (handler.errorsOccured())
{
List <Error> grammarErrors = handler.GrammarErrors;
Assert.AreEqual(1, grammarErrors.Count, "More errors occured than expected");
Assert.AreEqual(ErrorCode.grammarError, grammarErrors[0].ErrorCode, "Invalid error type.");
}
else
{
Assert.Fail("No grammar error occured");
}
}
catch (ArgumentException e)
{
Console.WriteLine(e.Message);
}
}
public void TestOutputFromFile(String path, String output)
{
StreamReader pom = new System.IO.StreamReader(path);
ErrorHandler handler = new ErrorHandler();
AntlrInputStream inputStream = new AntlrInputStream(pom);
GrammarLexer lexer = new GrammarLexer(inputStream);
lexer.RemoveErrorListeners();
lexer.AddErrorListener(new GrammarErrorListener(handler));
CommonTokenStream c = new CommonTokenStream(lexer);
GrammarParser helloParser = new GrammarParser(c);
helloParser.RemoveErrorListeners();
helloParser.AddErrorListener(new GrammarErrorListener(handler));
String path_file_ins = "insc1.txt";
try
{
IParseTree tree = helloParser.start();
pom.Close();
if (handler.errorsOccured())
{
Assert.Fail("Errors detected during lexical or syntactic analysis.");
}
Visitor visitor = new Visitor(handler);
visitor.PrepareLibraryFunctions();
visitor.DoInitialJmp();
int t = visitor.Visit(tree);
if (handler.errorsOccured())
{
Assert.Fail("Errors detected during semantic analysis.");
}
visitor.numberInstructions();
Program.WriteInstructions(visitor.GetInstructions(), path_file_ins);
}
catch (ArgumentException e)
{
Console.WriteLine(e.Message);
}
Process interpreter = new Process();
interpreter.StartInfo.FileName = "../../../refint_pl0_ext.exe";
interpreter.StartInfo.Arguments = path_file_ins + " -s -l";
interpreter.StartInfo.UseShellExecute = false;
interpreter.StartInfo.RedirectStandardOutput = true;
interpreter.Start();
StreamReader reader = new StreamReader(interpreter.StandardOutput.BaseStream);
if (!interpreter.WaitForExit(15000))
{
Assert.IsFalse(true, "Process might got stuck in infinite loop");
interpreter.Kill();
}
String output_from_interpret = reader.ReadToEnd();
Assert.AreEqual("START PL/0\r\n" + output + " END PL/0\r\n", output_from_interpret);
}
