@Override
public int hashCode() {
return 31 * first.hashCode() + second.hashCode();
}
@Override
@Nullable
A correctedDoBackward(@Nullable C c) {
return first.correctedDoBackward(second.correctedDoBackward(c));
}
@Override
@Nullable
C correctedDoForward(@Nullable A a) {
return second.correctedDoForward(first.correctedDoForward(a));
}
@Override
public int hashCode() {
return ~original.hashCode();
}
@Override
@Nullable
B correctedDoBackward(@Nullable A a) {
return original.correctedDoForward(a);
}
@Override
@Nullable
A correctedDoForward(@Nullable B b) {
return original.correctedDoBackward(b);
}