static void Main(string[] args)
{
String input = @"package P
context A
inv:
let fact(n: var) = if n = 1 then n else n * fact(n - 1) endif;
let n = 5;
fact(n+1) = 720
inv:
let a = 6;
let b = 6;
a = b
endpackage";
ICharStream stream = CharStreams.fromstring(input);
ITokenSource lexer = new HelloLexer(stream);
ITokenStream tokens = new CommonTokenStream(lexer);
HelloParser parser = new HelloParser(tokens);
parser.BuildParseTree = true;
IParseTree tree = parser.oclFile();
HelloPrinter printer = new HelloPrinter();
//ParseTreeWalker.Default.Walk(printer, tree);
tree.Accept(printer);
Console.ReadLine();
}
public HelloCalc(ArrayList <Dictionary <string, string> > vars, Dictionary <string, FunctionDef> funcs, HelloPrinter hp)
{
this.vars = vars;
this.funcs = funcs;
this.hp = hp;
}