public Parser(SymbolTable symbols, Scanner scanner)
{
_symbols = symbols;
_scanner = scanner;
_lookahead = _scanner.ReadToken();
}
public Checker(SymbolTable symbols, AST.Program program)
{
_symbols = symbols;
_program = program;
// create the standard set of predefined identifiers that Triangle defines
CreateStandardEnvironment();
// start walking the AST from the topmost node
_program.visit(this);
}
public CodeGen(SymbolTable symbols, AST.Program program)
{
_symbols = symbols;
_program = program;
_program.visit(this);
}
static int Main(string[] args)
{
int result = 0;
try
{
#if false
StreamReader sr = new StreamReader(args[0]);
Scanner scanner = new Scanner(args[0], sr, 4);
for (; ; )
{
Token token = scanner.ReadToken();
Console.WriteLine(token.Position.ToString() + ":" + token.ToString());
if (token.Kind == TokenKind.EndOfFile)
break;
}
sr.Close();
Console.ReadLine();
#else
// expand wildcards
string[] found = Toolbox.Find(args, false);
// process each input file in turn
foreach (string arg in found)
{
SymbolTable symbols = new SymbolTable();
StreamReader reader = new StreamReader(arg);
Scanner scanner = new Scanner(arg, reader, 4);
Parser parser = new Parser(symbols, scanner);
AST.Program program = parser.ParseProgram();
Checker checker = new Checker(symbols, program);
Indenter indenter = new Indenter(arg + ".log", System.Text.Encoding.ASCII);
try
{
program.Dump(indenter);
}
finally
{
indenter.Close();
}
new CodeGen(symbols, program);
Console.WriteLine("Press ENTER");
Console.ReadLine();
}
#endif
}
catch (BerylError that)
{
if (that.Position == null)
Console.WriteLine("Error: {0}", that.Message);
else
Console.WriteLine("{0} Error: {1}", that.Position.ToString(), that.Message);
result = 1;
}
#if false
catch (System.Exception that)
{
Console.WriteLine("Error: {0}", that.Message);
result = 1;
}
#endif
return result;
}