public void visitCompound(Attribute.Compound compound) {
            if (compound.type.tsym == syms.suppressWarningsType.tsym) {
                for (List<Pair<MethodSymbol,Attribute>> v = compound.values;
                     v.nonEmpty(); v = v.tail) {
                    Pair<MethodSymbol,Attribute> value = v.head;
                    if (value.fst.name.toString().equals("value"))
                        value.snd.accept(this);
                }

            }
        }