internal static ReductionAction <SYMBOL_ENUM, TREE_NODE> Create <SYMBOL_ENUM, TREE_NODE>(SingleState <SYMBOL_ENUM, TREE_NODE> state,
CoverSets <SYMBOL_ENUM> coverSets,
HorizonSets <SYMBOL_ENUM> horizonSets)
where SYMBOL_ENUM : struct
where TREE_NODE : class
{
SymbolChunkSet <SYMBOL_ENUM> cover = coverSets[state.LhsSymbol];
SymbolChunkSet <SYMBOL_ENUM> horizon = horizonSets[state.LhsSymbol];
// if we have internal conflict between symbols, we cannot use horizon data (because we couldn't tell if we reached horizon)
bool use_horizon = !horizon.IsEmpty && !cover.Overlaps(horizon);
var action = new ReductionAction <SYMBOL_ENUM, TREE_NODE>(state.CreateCell(), use_horizon ? horizon : null,
use_horizon ? new SymbolChunkSet <SYMBOL_ENUM>() : null);
return(action);
}
public void AddReduce(int sourceNodeId, SymbolChunk <SYMBOL_ENUM> inputChunk, SingleState <SYMBOL_ENUM, TREE_NODE> reductionItem)
{
setSingle(sourceNodeId, inputChunk, new ParseAction <SYMBOL_ENUM, TREE_NODE>(false, ReductionAction.Create(reductionItem.CreateCell())));
}
