public boolean isVisibleTo(Node currentNode, RubyClass callerClass) {
switch (visibility) {
case PUBLIC:
return true;
case PROTECTED:
for (RubyModule ancestor : callerClass.ancestors()) {
if (ancestor == declaringModule || ancestor.getMetaClass() == declaringModule) {
return true;
}
}
return false;
case PRIVATE:
// A private method may only be called with an implicit receiver,
// in which case the visibility must not be checked.
return false;
default:
return false;
}
}
