/// <summary>
/// Parse the fragment of the source code already given.
/// </summary>
/// <param name="parser"></param>
/// <param name="tokenStream"></param>
private static CstNode ParseFragment(TParser parser, CommonTokenStream tokenStream)
{
var builder = new CstBuilderForAntlr3WithMemorizingError(
tokenStream, parser.TokenNames);
parser.TreeAdaptor = builder;
tokenStream.Mark();
var methodInfos =
parser.GetType().GetMethods(BindingFlags.Public | BindingFlags.Instance);
foreach (var methodInfo in methodInfos)
{
if (methodInfo.ReturnType.IsSubclassOf(typeof(ParserRuleContext)) &&
methodInfo.GetParameters().Length == 0)
{
builder.Initialize();
parser.Reset();
var ret = methodInfo.Invoke(parser, new object[0]);
if (!builder.HasErrors)
{
return(builder.FinishParsing((CstNode)ret));
}
}
}
throw builder.LastException;
}
