slice makeSliceType(Token begin, Token c1, Token c2, List sltypes) {
boolean isTuple = false;
if (c1 != null || c2 != null) {
isTuple = true;
}
slice s = null;
boolean extslice = false;
if (isTuple) {
List<slice> st;
List<expr> etypes = new ArrayList<expr>();
for (Object o : sltypes) {
if (o instanceof Index) {
Index i = (Index) o;
etypes.add(i.getInternalValue());
} else {
extslice = true;
break;
}
}
if (!extslice) {
expr t = new Tuple(begin, etypes, expr_contextType.Load);
s = new Index(begin, t);
}
} else if (sltypes.size() == 1) {
s = castSlice(sltypes.get(0));
} else if (sltypes.size() != 0) {
extslice = true;
}
if (extslice) {
List<slice> st = castSlices(sltypes);
s = new ExtSlice(begin, st);
}
return s;
}
public Object visitIndex(Index node) throws Exception {
visit(node.getInternalValue());
return null;
}