public Transition(ParserState fromState, NonTerminal overNonTerminal)
{
FromState = fromState;
OverNonTerminal = overNonTerminal;
ToState = FromState.BuilderData.GetNextState(overNonTerminal);
_hashCode = unchecked (FromState.GetHashCode() - overNonTerminal.GetHashCode());
FromState.BuilderData.Transitions.Add(overNonTerminal, this);
Items = FromState.BuilderData.ShiftItems.SelectByCurrent(overNonTerminal);
foreach (var item in Items)
{
item.Transition = this;
}
}
public ShiftTransition(ParserState fromState, BnfTerm overTerm, LRItemSet shiftItems)
{
FromState = fromState;
OverTerm = overTerm;
ShiftItems = shiftItems;
_hashCode = unchecked (fromState.GetHashCode() - overTerm.GetHashCode());
//Add self to state's set of transitions
fromState.BuilderData.ShiftTransitions.Add(this);
//Assign self to Transition field of all shift items
foreach (var shiftItem in ShiftItems)
{
shiftItem.Transition = this;
}
}//constructor
public LRItem(ParserState state, LR0Item core)
{
State = state;
Core = core;
_hashCode = unchecked (state.GetHashCode() + core.GetHashCode());
}
