Snippet Leaking Boolexprs Fix

[Azlier]

Well, I guess it's time I contributed something to the community here. Here we go, even if it is a terrible title for a thread.

Ever since I learned JASS, I've been wondering about those boolexprs. Particularly the ones in trigger events. The thinking went, "Which is worse? A leaking boolexpr or the function calls needed to fix them?" So, I devised a plan to get rid of both. (If someone's done this before, stop me now.)

Why not store the boolexpr in a simple global variable? A fine plan, I thought. So, I experimented and replaced all my Filter(function True) with a more compact True. And it worked just as planned. Now, I decide to post it here .

library MapInit initializer Init

globals
    boolexpr True
endglobals

private function TrueFunc takes nothing returns boolean
    return true
endfunction

private function Init takes nothing returns nothing
    set True = Filter(function True)
endfunction

endlibrary

Simply inject the variable and the setup function and code into your Map Initialization library. There, we can now utilize the magic of the word True!

Now, instead of things like

call TriggerRegisterPlayerUnitEvent(t,Player(i),EVENT_PLAYER_UNIT_DEATH,Filter(function TrueFunc))

or

call TriggerRegisterPlayerUnitEvent(t,Player(i),EVENT_PLAYER_UNIT_DEATH,null)

we can simply put

call TriggerRegisterPlayerUnitEvent(t,Player(i),EVENT_PLAYER_UNIT_DEATH,True)

No leaks, and a single extra function call throughout the game. Not so bad now, is it? Well, I do hope this helps optimize/simplify code for some people.

[F.A.Q.]

Q. I saw this exact thing (here) and (there)!
A. F.A.Q.'s are for questions only.

Q. Isn't this going a little far?
A. Possibly.

Q. Null boolexprs only leak with groups!
A. Nope. They leak with everything.

Q. And you are?
A. I am who I am.

Q. Freak.
A. F.A.Q.'s are for questions only.

Q. AceHarts F.A.Q.'s are better!
A. Still not a question.

[/F.A.Q.]

 

[Charapanga]

Nicely done, simple yet effective!
+rep and +thanx

 

[Romek]

Vexorian made something like this a long time ago.
...Called "Boolexpr Utils" or something.

Does exactly the same thing. Problem with this is that it'll never be popular enough for everyone to use it.

 

[Azlier]

Curses! I knew this couldn't be some great new discovery!