"this" keyword usage

[sethmachine]

Hi,

I am trying to use the "this" keyword for a struct method, but I keep getting a syntax error. I am very confused.

    static method toString takes nothing returns string
        return monsterId2Str[this.index]
    endmethod

Error: "this is not a type that allows . syntax"

 

[deathismyfriend]

in static methods this is not declared.

You need to have a create method then call it or load the struct from an array / hashtable.

Example:

    static method toString takes nothing returns string
        local thistype this = thistype.Create()
        return monsterId2Str[this.index]
    endmethod

or to load from an array.

    static method toString takes nothing returns string
        local thistype this = myStructArray[0]
        return monsterId2Str[this.index]
    endmethod

 

[Nestharus]

    static method toString takes nothing returns string
    endmethod

    function toString takes nothing returns string
    endfunction

    method toString takes nothing returns string
    endmethod

    function toString takes integer this returns string
    endfunction

also, this. is not needed, any of the following will work

this.field
.field
field

however, if you have this scenario, you should use this. or .

method hi takes integer i returns nothing
    set this.i = i
    set .i = i
    //set i = i will not work, the local i will be seen
endmethod

for static, you use thistype

method hi takes integer i returns nothing
    set thistype.i = i
endmethod

thistype is just sort of a macro that is replaced with the struct's name. It can be used anywhere, including strings.

 

[Adiktuz]

Basically,

"this" returns the specific struct instance

"static methods" are a general struct method and does not run off a specific instance

So since you're trying to call a specific instance when there is none it would return an error...