A question about leaks

[afisakov]

Do players leak in Jass?
if I write

function addpspecial takes player p returns nothing

does this use "p" as a local variable, and does it have to be somehow removed or does it not leak as is?

I ask because I read somewhere that players and units do not leak in gui, only groups of them, however I do not know if this applies to Jass. Also, I am not familiar with local variable and any special rules related to them.

 

[dracolich]

Passed in function data will be destroyed once function is completed. No need to nullify transfered handle.

 

[cyb3rhack-r]

First of all, player does not leak. Second, anything that a function takes is nulled or destroyed through the function that called it. For example, function A is the parent function calling function a as a child function. If function a takes location aka call a( myloc ), myloc will be a variable written from function A and therefore must be destroyed and nulled there.

 

[dracolich]

?
as ALL mechpro said, there are NO need to nullify passed arguments.

 

[afisakov]

For example, function A is the parent function calling function a as a child function. If function a takes location aka call a( myloc ), myloc will be a variable written from function A and therefore must be destroyed and nulled there.

Does that meanI can't fix leaks in child function

I was hoping to write a function to create x units of type y at location z using a loop and put all the leak cleanup into it so I could spawn a group at a spot with one line. Guess that won't work?


Another question, can I safely fix group leaks with

call DestroyGroup(GetLastCreatedGroup())

assuming there are no waits in between of course?