public static CommonTreeNodeStream parseFile(string fullName)
{
if (cfg.Verbosity > 2) Console.WriteLine("Parsing " + Path.GetFileName(fullName));
ICharStream input = new ANTLRFileStream(fullName);
PreProcessor lex = new PreProcessor();
lex.AddDefine(cfg.MacroDefines);
lex.CharStream = input;
lex.TraceDestination = Console.Error;
CommonTokenStream tokens = new CommonTokenStream(lex);
// if (tokens.LT(1).Type == TokenTypes.EndOfFile)
// {
// Console.WriteLine("File is empty");
// return null;
// }
csParser p = new csParser(tokens);
p.TraceDestination = Console.Error;
p.IsJavaish = cfg.InternalIsJavaish;
csParser.compilation_unit_return parser_rt = p.compilation_unit();
if (parser_rt == null || parser_rt.Tree == null)
{
if (lex.FoundMeat)
{
Console.WriteLine("No Tree returned from parsing! (Your rule did not parse correctly)");
}
else
{
// the file was empty, this is not an error.
}
return null;
}
CommonTreeNodeStream nodes = new CommonTreeNodeStream(parser_rt.Tree);
nodes.TokenStream = tokens;
return nodes;
}
public CommonTree parseString(string startRule, string inStr, bool includeNet)
{
if (Cfg.Verbosity > 5) Console.WriteLine("Parsing fragment ");
ICharStream input = new ANTLRStringStream(inStr);
PreProcessor lex = new PreProcessor();
lex.AddDefine(Cfg.MacroDefines);
lex.CharStream = input;
lex.TraceDestination = Console.Error;
CommonTokenStream tokens = new CommonTokenStream(lex);
csParser p = new csParser(tokens);
p.TraceDestination = Console.Error;
p.IsJavaish = true;
// Try and call a rule like CSParser.namespace_body()
// Use reflection to find the rule to use.
MethodInfo mi = p.GetType().GetMethod(startRule);
if (mi == null)
{
throw new Exception("Could not find start rule " + startRule + " in csParser");
}
ParserRuleReturnScope csRet = (ParserRuleReturnScope) mi.Invoke(p, new object[0]);
CommonTreeNodeStream csTreeStream = new CommonTreeNodeStream(csRet.Tree);
csTreeStream.TokenStream = tokens;
JavaMaker javaMaker = new JavaMaker(csTreeStream);
javaMaker.TraceDestination = Console.Error;
javaMaker.Cfg = Cfg;
javaMaker.IsJavaish = true;
javaMaker.InitParser();
// Try and call a rule like CSParser.namespace_body()
// Use reflection to find the rule to use.
mi = javaMaker.GetType().GetMethod(startRule);
if (mi == null)
{
throw new Exception("Could not find start rule " + startRule + " in javaMaker");
}
TreeRuleReturnScope javaSyntaxRet = (TreeRuleReturnScope) mi.Invoke(javaMaker, new object[0]);
CommonTree retAST = (CommonTree)javaSyntaxRet.Tree;
if (includeNet) {
CommonTreeNodeStream javaSyntaxNodes = new CommonTreeNodeStream(retAST);
javaSyntaxNodes.TokenStream = csTreeStream.TokenStream;
NetMaker netMaker = new NetMaker(javaSyntaxNodes);
netMaker.TraceDestination = Console.Error;
netMaker.Cfg = Cfg;
netMaker.AppEnv = AppEnv;
netMaker.IsJavaish = true;
netMaker.InitParser();
retAST = (CommonTree)netMaker.class_member_declarations().Tree;
// snaffle additional imports
this.AddToImports(netMaker.Imports);
}
return retAST;
}
