public void sendError(string errorMessage)
{
this.virtualMachine.setErrorMessage(errorMessage);
parser.SemErr(errorMessage);
errorsFound = true;
}
public Symbol NewSym(int typ, string name, int line)
{
if (name.Length == 2 && name[0] == '"')
{
parser.SemErr("empty token not allowed"); name = "???";
}
Symbol sym = new Symbol(typ, name, line);
switch (typ)
{
case Node.t: sym.n = terminals.Count; terminals.Add(sym); break;
case Node.pr: pragmas.Add(sym); break;
case Node.nt: sym.n = nonterminals.Count; nonterminals.Add(sym); break;
}
return(sym);
}
internal static NumericConstantNode Create(Parser parser, string tokenValue)
{
double d;
if (TryParse(tokenValue, out d))
{
return(new NumericConstantNode(d));
}
parser.SemErr("invalid numeric constant");
return(new NumericConstantNode(double.NaN));
}
/// <summary>
/// Raise runtime error at VM.
/// </summary>
/// <param name="msg">Message.</param>
public void SetRuntimeError(string msg)
{
_parser.SemErr(msg);
}