if (n==null) return;
Forest[] holder = new Forest[r.position.pos];
if (r.position.pos==0) n.finish(r, r.zero(), n.phase(), holder);
- else r.reduce(n, r.position.pos-1, n.phase(), holder);
+ else n.reduce(r, r.position.pos-1, n.phase(), holder);
} else {
Forest[] holder = new Forest[r.position.pos];
if (r.position.pos<=0) throw new Error("called wrong form of reduce()");
Forest rex = r.position.rewrite(n.phase().getLocation());
n2.finish(r, rex, n.phase(), holder);
} else {
- r.reduce(n2, pos-1, n.phase(), holder);
+ n2.reduce(r, pos-1, n.phase(), holder);
}
holder[pos] = old;
}
}
+ public void reduce(Reduction r, int pos, GSS.Phase target, Forest[] holder) {
+ Forest old = holder[pos];
+ holder[pos] = this.pending();
+ if (pos==0) {
+ System.arraycopy(holder, 0, r.position.holder, 0, holder.length);
+ for(int i=0; i<r.position.pos; i++) if (r.position.holder[i]==null) throw new Error("realbad");
+ Forest rex = r.position.rewrite(target.getLocation());
+ for(GSS.Phase.Node child : this.parents()) child.finish(r, rex, target, holder);
+ } else {
+ for(GSS.Phase.Node child : this.parents()) child.reduce(r, pos-1, target, holder);
+ }
+ holder[pos] = old;
+ }
+
public void finish(Reduction r, Forest result, GSS.Phase target, Forest[] holder) {
State state0 = state.gotoSetNonTerminals.get(r.position.owner());
if (result==null) throw new Error();
return zero = position.rewrite(null);
}
- // 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()) child.finish(this, rex, target, holder);
- } else {
- for(GSS.Phase.Node child : parent.parents()) reduce(child, pos-1, target, holder);
- }
- holder[pos] = old;
- }
}
}