Naming conventions
Throughout Functional Hack, the following naming conventions apply.
Lazy parameters
Names of functions with lazy parameters end with L
("lazy"). For example:
final class Option<+T> {
public function option<TR>(TR $onNone, (function(T): TR) $onSome): TR { ... }
public function optionL<TR>((function(): TR) $onNone, (function(T): TR) $onSome): TR { ... }
}
These functions exist to prevent the unnecessary evaluation of resource-heavy computations.