Filter inside struct?

[Livirus]

I have a problem with structs. An example might come handy:

function SomeFilter takes nothing returns boolean
     return SomeCondition
endfunction

struct someStruct
     unit u
     group g

     method someMethod takes nothing returns unit
          local someStruct some
          local filterfunc filter = Filter(function SomeFilter)
          call GroupEnumUnitsInRect(some.g, bj_mapInitialPlayableArea, filter)
          set some.u = FirstOfGroup(g)
     endmethod
endstruct

The above script does not generate any error, but no unit gets filtered and the code stops.
Maybe you're not able to call functions from inside a struct?

I've tried this way (below) too, but it doesn't work either.

struct someStruct
     unit u
     group g

     method someFilter takes nothing returns boolean
          return someCondition
     endmethod

     method someMethod takes nothing returns unit
          local someStruct some
          local filterfunc filter = Filter(some.SomeFilter) //Syntax Error
          call GroupEnumUnitsInRect(some.g, bj_mapInitialPlayableArea, filter)
          set some.u = FirstOfGroup(some.g)
     endmethod
endstruct

Tried this too but it also generates syntax error.

local filterfunc filter = Filter(method some.SomeFilter)

...and also:

local filterfunc filter = Filter(function some.SomeFilter)

What is the proper way to do it?

 

[Livirus]

...and question 2.

Can I make a struct accessible from another trigger?
I tried

public struct whatEver

But when I call it from another trigger it says "Undefined type whatEver".
Maybe if I put the struct in a library or something?

 

[peq]

Make SomeFilter a static method and then use

local boolexpr filter = Condition(function some.SomeFilter)

A struct can be used anywhere by default unless its private or private per keyword. Are you using latest JassHelper?

 

[Livirus]

Got it to work now. Thank you.

I had to use someStruct and not some to get it to work.
Also SomeMethod had to be static too.

local filterfunc filter = Filter(function someStruct.SomeFilter)

Is there any difference between boolexpr and filterfunc?
It seems to me like they work the same way.

Same goes with Condition(...) and Filter(...).
---

A struct can be used anywhere by default unless its private or private per keyword. Are you using latest JassHelper?

Hmm, I use JassHelper 0.9.E.0, the newest seem to be 0.9.F.0.

I still have problem with using the struct from outside the trigger (another trigger).
You think it will help if I update JassHelper?

 

[Ciebron]

scope Blah

globals
    private boolexpr Bool
endglobals

private struct Data

   // Stuff...

   static method onInit takes nothing returns nothing
       set Bool = Condition(function UnitFilter)
   endmethod

   static method UnitFilter takes nothing returns boolean
   //filter stuff
   endmethod

endstruct

endscope

better to use globals, then u dont need to save it each time u run the somefilter function

 

[Livirus]

Good point.