private static void Main(string[] args)
{
var visitor = new CmmExprVisitor();
while (true)
{
if (!Console.KeyAvailable)
{
Thread.Sleep(10);
continue;
}
var input = Console.ReadLine();
if (input == "end")
{
break;
}
// var stream = new AntlrInputStream(input);
// var lexer = new LuaLexer(stream);
// var tokens = new CommonTokenStream(lexer);
// var parser = new LuaParser(tokens);
// var tree = parser.chunk();
// Console.WriteLine(tree.ToStringTree(parser));
var stream = new AntlrInputStream(input);
var lexer = new CMMLexer(stream);
var tokens = new CommonTokenStream(lexer);
var parser = new CMMParser(tokens);
var tree = parser.chunk();
Console.WriteLine(tree.ToStringTree(parser));
// var lexer = new CMMLexer(stream);
// var tokens = new CommonTokenStream(lexer);
// var parser = new CMMParser(tokens);
// var tree = parser.expression();
// Console.WriteLine(tree.ToStringTree(parser));
// try
// {
// var expr = visitor.Visit(tree);
// if (expr == null)
// {
// Console.WriteLine("null");
// continue;
// }
//
// var result = Expression.Lambda(expr).Compile();
// Console.WriteLine(result.DynamicInvoke());
// // Console.WriteLine(expr.ToString());
// }
// catch (Exception e)
// {
// Console.WriteLine(e);
// }
}
}
public void RunParser(String input)
{
// String example="write(\"CMMM语言while循环示例:\");int a = 10;while (a <> 0) {a = a - 1;write(a);}";
// input = example;
ICharStream stream = CharStreams.fromstring(input);
ITokenSource lexer = new CMMLexer(stream);
ITokenStream tokens = new CommonTokenStream(lexer);
CMMParser parser = new CMMParser(tokens);
parser.BuildParseTree = true;
IParseTree tree = parser.statements();
var visitor = new RefPhase();
visitor.outputStream = this;
visitor.Visit(tree);
}
