/// <summary>
/// Raises a reduce/reduce conflict
/// </summary>
/// <param name="state">The parent state</param>
/// <param name="currentItem">The conflictuous reduction item (current)</param>
/// <param name="previousItem">The conflictuous reduction item (previous)</param>
/// <param name="lookahead">The lookahead creating the conflict</param>
protected void RaiseConflictReduceReduce(State state, Item currentItem, Item previousItem, Terminal lookahead)
{
// Look for previous conflict
foreach (Conflict previous in conflicts)
{
if (previous.ErrorType == ErrorType.ConflictReduceReduce && previous.ConflictSymbol == lookahead)
{
// Previous conflict
previous.AddItem(currentItem);
return;
}
}
// No previous conflict was found
Conflict conflict = new Conflict(state, ErrorType.ConflictReduceReduce, lookahead);
conflict.AddItem(previousItem);
conflict.AddItem(currentItem);
conflicts.Add(conflict);
}