public SerializedATN(OutputModelFactory factory, ATN atn, IList <string> ruleNames)
: base(factory)
{
List <int> data = ATNSerializer.GetSerialized(atn, ruleNames);
serialized = new List <string>(data.Count);
foreach (int c in data)
{
string encoded = factory.GetTarget().EncodeIntAsCharEscape(c == -1 ? char.MaxValue : c);
serialized.Add(encoded);
}
//System.Console.WriteLine(ATNSerializer.GetDecoded(factory.GetGrammar(), atn));
}
/** Derive a new parser from an old one that has knowledge of the grammar.
* The Grammar object is used to correctly compute outer alternative
* numbers for parse tree nodes. A parser of the same type is created
* for subclasses of {@link ParserInterpreter}.
*/
public static ParserInterpreter DeriveTempParserInterpreter(Grammar g, Parser originalParser, ITokenStream tokens)
{
ParserInterpreter parser;
if (originalParser is ParserInterpreter)
{
Type c = originalParser.GetType();
try
{
parser = (ParserInterpreter)Activator.CreateInstance(originalParser.GetType(), g, originalParser.Atn, originalParser.InputStream);
}
catch (Exception e)
{
throw new ArgumentException("can't create parser to match incoming " + c.Name, e);
}
}
else
{
// must've been a generated parser
char[] serializedAtn = ATNSerializer.GetSerializedAsChars(originalParser.Atn, originalParser.RuleNames);
ATN deserialized = new ATNDeserializer().Deserialize(serializedAtn);
parser = new ParserInterpreter(originalParser.GrammarFileName,
originalParser.Vocabulary,
originalParser.RuleNames,
deserialized,
tokens);
}
parser.SetInputStream(tokens);
// Make sure that we don't get any error messages from using this temporary parser
parser.ErrorHandler = new BailErrorStrategy();
parser.RemoveErrorListeners();
parser.RemoveParseListeners();
parser.Interpreter.PredictionMode = PredictionMode.LlExactAmbigDetection;
return(parser);
}
