Handle To (returnbugs ^^)

09-12-2009, 06:58 PM

I don't know if it's already public knowlege, but the return bug is still possible (thought not with integers -_-).

Well, they migth be usefull to someone else so I will just post my H2 lib.

H2 Library:

library
    function Gro takes handle h returns group
    local group g
    if false then
    return g
    else
    return h
    endif
    endfunction

    function Uni takes handle h returns unit
    local unit u
    if false then
    return u
    else
    return h
    endif
    endfunction

    function Tim takes handle h returns timer
    local timer t
    if false then
    return t
    else
    return h
    endif
    endfunction

    function Eve takes handle h returns event
    local event e
    if false then
    return e
    else
    return h
    endif
    endfunction

    function Pla takes handle h returns player
    local player p
    if false then
    return p
    else
    return h
    endif
    endfunction

    function Abi takes handle h returns ability
    local ability ab
    if false then
    return ab
    else
    return h
    endif
    endfunction

    function For takes handle h returns force
    local force f
    if false then
    return f
    else
    return h
    endif
    endfunction

    function Tri takes handle h returns trigger
    local trigger t
    if false then
    return t
    else
    return h
    endif
    endfunction

    function TriC takes handle h returns triggercondition
    local triggercondition t
    if false then
    return t
    else
    return h
    endif
    endfunction

    function TriA takes handle h returns triggeraction
    local triggeraction t
    if false then
    return t
    else
    return h
    endif
    endfunction

    function Des takes handle h returns destructable
    local destructable d
    if false then
    return d
    else
    return h
    endif
    endfunction

    function Ite takes handle h returns item
    local item i
    if false then
    return i
    else
    return h
    endif
    endfunction

    function Buf takes handle h returns buff
    local buff b
    if false then
    return b
    else
    return h
    endif
    endfunction

    function Loc takes handle h returns location
    local location l
    if false then
    return l
    else
    return h
    endif
    endfunction

    function Reg takes handle h returns region
    local region r
    if false then
    return r
    else
    return h
    endif
    endfunction

    function Rec takes handle h returns rect
    local rect r
    if false then
    return r
    else
    return h
    endif
    endfunction

    function Boo takes handle h returns boolexpr
    local boolexpr b
    if false then
    return b
    else
    return h
    endif
    endfunction

    function Sou takes handle h returns sound
    local sound s
    if false then
    return s
    else
    return h
    endif
    endfunction

    function ConF takes handle h returns conditionfunc
    local conditionfunc c
    if false then
    return c
    else
    return h
    endif
    endfunction

    function FilF takes handle h returns filterfunc
    local filterfunc f
    if false then
    return f
    else
    return h
    endif
    endfunction

    function UniP takes handle h returns unitpool
    local unitpool p
    if false then
    return p
    else
    return h
    endif
    endfunction

    function IteP takes handle h returns itempool
    local itempool i
    if false then
    return i
    else
    return h
    endif
    endfunction

    function Rac takes handle h returns race
    local race r
    if false then
    return r
    else
    return h
    endif
    endfunction

    function AllT takes handle h returns alliancetype
    local alliancetype a
    if false then
    return a
    else
    return h
    endif
    endfunction

    function IgaS takes handle h returns igamestate
    local igamestate i
    if false then
    return i
    else
    return h
    endif
    endfunction

    function FgaS takes handle h returns fgamestate
    local fgamestate f
    if false then
    return f
    else
    return h
    endif
    endfunction

    function PlaS takes handle h returns playerstate
    local playerstate p
    if false then
    return p
    else
    return h
    endif
    endfunction

    function UniS takes handle h returns unitstate
    local unitstate u
    if false then
    return u
    else
    return h
    endif
    endfunction

    function EveI takes handle h returns eventid
    local eventid e
    if false then
    return e
    else
    return h
    endif
    endfunction

    function CamF takes handle h returns camerafield
    local camerafield c
    if false then
    return c
    else
    return h
    endif
    endfunction

    function CamS takes handle h returns camerasetup
    local camerasetup c
    if false then
    return c
    else
    return h
    endif
    endfunction

    function Eff takes handle h returns effect
    local effect e
    if false then
    return e
    else
    return h
    endif
    endfunction

    function EffT takes handle h returns effecttype
    local effecttype e
    if false then
    return e
    else
    return h
    endif
    endfunction

    function Dia takes handle h returns dialog
    local dialog d
    if false then
    return d
    else
    return h
    endif
    endfunction

    function But takes handle h returns button
    local button b
    if false then
    return b
    else
    return h
    endif
    endfunction

    function Qes takes handle h returns quest
    local quest q
    if false then
    return q
    else
    return h
    endif
    endfunction

    function QesI takes handle h returns questitem
    local questitem q
    if false then
    return q
    else
    return h
    endif
    endfunction

    function DefC takes handle h returns defeatcondition
    local defeatcondition d
    if false then
    return d
    else
    return h
    endif
    endfunction

    function TimD takes handle h returns timerdialog
    local timerdialog t
    if false then
    return t
    else
    return h
    endif
    endfunction

    function LeaB takes handle h returns leaderboard
    local leaderboard l
    if false then
    return l
    else
    return h
    endif
    endfunction

    function MulB takes handle h returns multiboard
    local multiboard m
    if false then
    return m
    else
    return h
    endif
    endfunction

    function MuLBI takes handle h returns multiboarditem
    local multiboarditem m
    if false then
    return m
    else
    return h
    endif
    endfunction

    function Tra takes handle h returns trackable
    local trackable t
    if false then
    return t
    else
    return h
    endif
    endfunction

    function GamC takes handle h returns gamecache
    local gamecache g
    if false then
    return g
    else
    return h
    endif
    endfunction

    function IteT takes handle h returns itemtype
    local itemtype i
    if false then
    return i
    else
    return h
    endif
    endfunction

    function TexT takes handle h returns texttag
    local texttag t
    if false then
    return t
    else
    return h
    endif
    endfunction

    function AttT takes handle h returns attacktype
    local attacktype a
    if false then
    return a
    else
    return h
    endif
    endfunction

    function DamT takes handle h returns damagetype
    local damagetype d
    if false then
    return d
    else
    return h
    endif
    endfunction

    function WeaT takes handle h returns weapontype
    local weapontype w
    if false then
    return w
    else
    return h
    endif
    endfunction

    function SouT takes handle h returns soundtype
    local soundtype s
    if false then
    return s
    else
    return h
    endif
    endfunction

    function Lig takes handle h returns lightning
    local lightning l
    if false then
    return l
    else
    return h
    endif
    endfunction

    function PatT takes handle h returns pathingtype
    local pathingtype p
    if false then
    return p
    else
    return h
    endif
    endfunction

    function Ima takes handle h returns image
    local image i
    if false then
    return i
    else
    return h
    endif
    endfunction

    function UbeS takes handle h returns ubersplat
    local ubersplat u
    if false then
    return u
    else
    return h
    endif
    endfunction

    function HasT takes handle h returns hashtable
    local hashtable ha
    if false then
    return ha
    else
    return h
    endif
    endfunction
endlibrary

names: H2_ + first 3 chars of the first word and 1 of the following words (first letters are capital^^)
means: multiboarditem = MulBI
=> H2_MulBI

This library does NOT contain every vartype, only those I think I will need^^.

09-12-2009, 08:53 PM	#2
Vexorian	that's messed up, though probably not necessary as we could use SaveAgentHandle anyway (and it is safer too)

09-12-2009, 09:10 PM	#3
azlier	Can you create B2I and I2B? While you said integers could still not be typecasted into handles, what about booleans? Those are the only ones I'm interested in.

09-12-2009, 09:25 PM

Arkless

Quote:

Originally Posted by azlier

Can you create B2I and I2B? While you said integers could still not be typecasted into handles, what about booleans? Those are the only ones I'm interested in.

JASS:

function B2I takes boolean b returns integer
if b then
return 1
else
return 0
endif
endfunction

function I2B takes integer i returns boolean
if i == 1 then
return true
elseif i == 0 then
return false
endif
endfunction

O.o sry, I didnt use the returnbug but I suppose that's what you want ^^

edit:

Quote:

Originally Posted by Vexorian

that's messed up, though probably not necessary as we could use SaveAgentHandle anyway (and it is safer too)

well O.o I found this when I copied a timerstack and my groupstack didnt work (coz it created timers >.<)...
so I just made me a list of functions I might need somewhere in the future (I got some ideas xDDD my weird way of mapping^^)

and you know, this exists... so why keep it for myself? maybe someone else can use it for something usefull^^ (afterall I didn't even try to submit it as a code resource^^)

09-12-2009, 09:30 PM

ToukoAozaki

Quote:

Originally Posted by azlier

Can you create B2I and I2B? While you said integers could still not be typecasted into handles, what about booleans? Those are the only ones I'm interested in.

Isn't that possible with just plain ifs? Such as:

JASS:

function I2B takes integer i returns boolean
    if i == 0 then
        return false
    endif
    return true
endfunction

09-12-2009, 09:57 PM	#6
Vexorian	booleans are not necessarily 0 or 1.

09-12-2009, 10:04 PM

Arkless

JASS:

function B2I takes boolean b returns integer
if b then
return 1
elseif not b then
return 0
else
return 2
endif
endfunction

function I2B takes integer i returns boolean
if i == 1 then
return true
elseif i == 0 then
return false
elseif i == 2 then
return null
endif
endfunction

09-12-2009, 10:24 PM	#8
azlier	I needed B2I and I2B for a sort of perfect trigger attachment I invented. No hashtables, arrays, H2I - 0x100000, nothing. O(1) all over, write and read. Bah. Nevermind. I needed B2I and I2B using the return bug.

09-12-2009, 10:27 PM	#9
Vexorian	It won't though, blizz will destroy this because it will not be shocking the I2C will work with a variation like this. Nobody really needs trigger attachment anyway...

09-12-2009, 10:31 PM	#10
azlier	Ah, but the one who can attach to a trigger can attach to the world. (Trackables, regions, blah...)

09-12-2009, 11:05 PM

#11

Storyyeller

Quote:

Originally Posted by Arkless

JASS:

function B2I takes boolean b returns integer
if b then
return 1
elseif not b then
return 0
else
return 2
endif
endfunction

function I2B takes integer i returns boolean
if i == 1 then
return true
elseif i == 0 then
return false
elseif i == 2 then
return null
endif
endfunction

You're I2B function is still wrong.
You aren't returning in the case when i is not 0,1, or 2

09-13-2009, 12:27 AM	#12
azlier	So, uh... yeah.

09-13-2009, 01:32 AM

#13

Arkless

Quote:

Originally Posted by Storyyeller

You're I2B function is still wrong.
You aren't returning in the case when i is not 0,1, or 2

you are right, just make the null the last else without if <.<

edit:

Quote:

Originally Posted by azlier

So, uh... yeah.

o.o quite cool, I knew returning from nothing but i never guessed that it would still work ^^

thought its said... will probably lead to another bugloaded fix from blizz... hope they will just ignore it <.<

09-14-2009, 05:20 AM	#14
weaaddar	By the way PJass disallow null return syntax which is a good thing but unfortuantely doesn't catch return bug forms:: JASS: unit H2U(handle h) { return h; // should throw a compilation error doesn't } unit H2U(handle h) { unit u; if(false) return h; // throws a compilation error, but shouldn't. }

09-14-2009, 06:17 AM	#15
DioD	null == false 0 == null == false without typecast....