public final int idx = master_state_idx++;
private final HashSet<Position> hs;
- private transient HashMap<Element,State> gotoSetNonTerminals = new HashMap<Element,State>();
+ public transient HashMap<Element,State> gotoSetNonTerminals = new HashMap<Element,State>();
private transient TopologicalBag<Token,State> gotoSetTerminals = new TopologicalBag<Token,State>();
private TopologicalBag<Token,Reduction> reductions = new TopologicalBag<Token,Reduction>();
return zero = position.rewrite(null);
}
- public void reduce(GSS.Phase.Node parent, GSS.Phase.Node onlychild) {
- Forest[] holder = new Forest[position.pos];
- if (position.pos<=0) throw new Error("called wrong form of reduce()");
- int pos = position.pos-1;
- Forest old = holder[pos];
- holder[pos] = parent.pending();
- if (pos==0) {
- System.arraycopy(holder, 0, position.holder, 0, holder.length);
- finish(onlychild, position.rewrite(parent.phase().getLocation()), parent.phase(), holder);
- } else {
- reduce(onlychild, pos-1, parent.phase(), holder);
- }
- holder[pos] = old;
- }
-
- // FIXME: this could be more elegant and/or cleaner and/or somewhere else
- public void reduce(GSS.Phase.Node parent, int pos, GSS.Phase target, Forest[] holder) {
- Forest old = holder[pos];
- holder[pos] = parent.pending();
- if (pos==0) {
- System.arraycopy(holder, 0, position.holder, 0, holder.length);
- for(int i=0; i<position.pos; i++) if (position.holder[i]==null) throw new Error("realbad");
- Forest rex = position.rewrite(target.getLocation());
- for(GSS.Phase.Node child : parent.parents()) finish(child, rex, target, holder);
- } else {
- for(GSS.Phase.Node child : parent.parents()) reduce(child, pos-1, target, holder);
- }
- holder[pos] = old;
- }
- public void finish(GSS.Phase.Node parent, Forest result, GSS.Phase target, Forest[] holder) {
- State state = parent.state.gotoSetNonTerminals.get(position.owner());
- if (result==null) throw new Error();
- if (state!=null)
- target.newNode(parent, result, state, position.pos<=0, this);
- }
}
}