| public SemErr ( int line, int col, string s ) : void | ||
| line | int | |
| col | int | |
| s | string | |
| return | void | |
public void SemErr(string msg)
{
if (errDist >= minErrDist)
{
errors.SemErr(t.line, t.col, msg);
}
errDist = 0;
}
public void SemErr(string msg)
{
if (_errDist >= Constants.MINIMUM_ERROR_DISTANCE)
{
Errors.SemErr(t.line, t.col, msg);
}
_errDist = 0;
}
public void GetTargetStates(Action a, out BitArray targets, out Symbol endOf, out bool ctx)
{
// compute the set of target states
targets = new BitArray(maxStates); endOf = null;
ctx = false;
for (Target t = a.target; t != null; t = t.next)
{
int stateNr = t.state.nr;
if (stateNr <= lastSimState)
{
targets[stateNr] = true;
}
else
{
targets.Or(MeltedSet(stateNr));
}
if (t.state.endOf != null)
{
if (endOf == null || endOf == t.state.endOf)
{
endOf = t.state.endOf;
}
else
{
errors.SemErr("Tokens " + endOf.name + " and " + t.state.endOf.name + " cannot be distinguished");
}
}
if (t.state.ctx)
{
ctx = true;
// The following check seems to be unnecessary. It reported an error
// if a symbol + context was the prefix of another symbol, e.g.
// s1 = "a" "b" "c".
// s2 = "a" CONTEXT("b").
// But this is ok.
// if (t.state.endOf != null) {
// Console.WriteLine("Ambiguous context clause");
// errors.count++;
// }
}
}
}