[PEPr] Comment on Constants::Enum

Andrey Demenev (http://pear.php.net/user/blindman) has commented on the proposal for Constants::Enum. Comment: I agree that the package in its current state is not very useful. I t is not a big problem to define a sequence of numbers in consequent lines of code. What would make this package more useful is support for named sequences. It is often needed to create a sequence of unique identifiers, when number of elements in sequence is unknown. Say, we have this class in a program: class EventHandler { function registerEvent($evId, .........) { ............. } function handleEvent($evId, ...........) { } } and later we add plugin modules, which know nothing about each other. To ensure that each module has its unique event IDs, we could do something like this: Enum::addToSequence('EventIdentifier', 'EVENT_A_XXX'); Enum::addToSequence('EventIdentifier', 'EVENT_A_YYY'); ^ ^ sequence name constant name (and maybe have a choice between returning unique value and defining a constant) and then: $handler->handleEvent(EVENT_A_XXX, ......); Of cource, it only makes sense when numeric IDs are required. When using string IDs, uniqueness is usually not an issue Proposal information: http://pear.php.net/pepr/pepr-proposal-show.php?id=57 -- Sent by PEPr, the automatic proposal system at http://pear.php.net