public object ParseFile(string filename, TextReader reader)
{
var input = new ANTLRReaderStream(reader);
var lexer = new FunctionalLexer(input);
var tokenStream = new CommonTokenStream(lexer);
var parser = new FunctionalParser(tokenStream);
var tree = parser.prog().Tree;
var nodes = new CommonTreeNodeStream(tree);
var eval = new FunctionalTreeParser(nodes, parser.FunctionDefinitions);
eval.prog();
return default(BigInteger);
}
private BigInteger call()
{
EnterRule_call();
EnterRule("call", 4);
TraceIn("call", 4);
BigInteger value = default(BigInteger);
CommonTree ID8 = default(CommonTree);
BigInteger expr7 = default(BigInteger);
try { DebugEnterRule(GrammarFileName, "call");
DebugLocation(38, 4);
try
{
// Parsing\\FunctionalTreeParser.g3:39:5: ( ^( CALL ID expr ) )
DebugEnterAlt(1);
// Parsing\\FunctionalTreeParser.g3:39:9: ^( CALL ID expr )
{
DebugLocation(39, 9);
DebugLocation(39, 11);
Match(input,CALL,Follow._CALL_in_call437);
Match(input, TokenTypes.Down, null);
DebugLocation(39, 16);
ID8=(CommonTree)Match(input,ID,Follow._ID_in_call439);
DebugLocation(39, 19);
PushFollow(Follow._expr_in_call441);
expr7=expr();
PopFollow();
Match(input, TokenTypes.Up, null);
DebugLocation(39, 36);
BigInteger p = expr7;
var funcRoot = this.FindFunction((ID8!=null?ID8.Text:null), p);
if (funcRoot == null) {
System.Console.Error.WriteLine("No match found for " + (ID8!=null?ID8.Text:null) + "(" + p + ")");
} else {
// Here we set up the local evaluator to run over the
// function definition with the parameter value.
// This re-reads a sub-AST of our input AST!
var e = new FunctionalTreeParser(funcRoot, functionDefinitions, globalMemory, p);
value = e.expr();
}
}
}
catch (RecognitionException re)
{
ReportError(re);
Recover(input,re);
}
finally
{
TraceOut("call", 4);
LeaveRule("call", 4);
LeaveRule_call();
}
DebugLocation(51, 4);
} finally { DebugExitRule(GrammarFileName, "call"); }
return value;
}