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Structures with default values
Posted: Tue Mar 21, 2017 5:30 pm
by GPI
for example:
Code: Select all
Structure Counter
value.i = 10
EndStructure
a.counter
debug a\value ;should return 10
It should be possible to add ?labels and @procedures as default values.
Re: Structures with default values
Posted: Tue Mar 21, 2017 7:53 pm
by c4s
+1
Re: Structures with default values
Posted: Tue Mar 21, 2017 8:08 pm
by Shield
I know this doesn't have the syntactic sugar, but you may be able to use this:
Code: Select all
Structure Car
name.s
speed.i
EndStructure
Global DefaultCar.Car
DefaultCar\name = "DefaultCar"
DefaultCar\speed = 100
Procedure DoCarStuff()
Protected car.Car
car = DefaultCar
Debug car\name
Debug car\speed
EndProcedure
DoCarStuff()
I'd be more for something like a default constructor function as defining the default values inline
is limiting, e.g. what if the struct contains arrays or lists/maps?
Re: Structures with default values
Posted: Tue Mar 21, 2017 8:51 pm
by GPI
In lua there are things like Metatables, which are able to change the behaviour of tables/variables.
Maybe something like CreateHook(structure, hooktype,@hock()) , wher hooktype could be #pb_hook_creation, #pb_hook_destruction and so on.
But i think it is too "anti-Basic". The solution above is easy to understand.
I would solve this then like this:
Code: Select all
Prototype __create(*structure)
Declare something_create()
Structure something
create.__create = @something_create()
...
EndStructure
Procedure something_create(*self.something)
....
EndProcedure
Define x.something\create(x)
or when you look at my other Request:
Code: Select all
Declare something_create()
Structure something
create.i (*structure) = @something_create()
...
EndStructure
Procedure something_create(*self.something)
....
EndProcedure
Define x.something\\create()
Re: Structures with default values
Posted: Wed Mar 22, 2017 9:45 am
by STARGÅTE
Re: Structures with default values
Posted: Wed Mar 22, 2017 3:17 pm
by GPI
Sometimes it is not a bad idea to rethink an old idea
