[Gambas-user] Structure support in Gambas 3

[Dimitris Anogiatis]

Benoît,
What would happen if there was a case you had program A with 3.x
dependencies and Program B running 3.y dependencies?
Or are you only referring to complete Gambas 3.x and 3.y installations on
the same machine?

Regards,
Dimitris

2010/5/27 Benoît Minisini <gambas at ...1...>

> > > To define a structure, you must declare it inside a class or a module
> > > that
> > >
> > > way:
> > >     Public Struct<StructName>
> > >     <Var1>  As<Type1>
> > >     <Var2>  As<Type2>
> > >     End Struct
> >
> > This means you cannot define the struct itself at runtime like an
> > object, right? You must know the struct's composition of variables in
> > advance? So the program could not react freely to a change in the
> > database? (Don't know how to express it more clearly...)
>
> Of course, as for the other classes. If you don't know the structure of
> your
> data at compile time, you must use something else like a collection.
>
> Maybe there will be a trick (not possible at the moment), like creating a
> gambas project at runtime, compile it, and loads it as a component. But it
> would be weird to do that.
>
> >
> > But it's great, I find this practical as well when you include external
> > functions from the system.
> >
> > > ability to release incremental versions of Gambas (3.1, 3.2...) that
> > > won't be just bug fixes like in the 2.x versions.
> >
> > I don't quite see what you mean by that. Do you intend to create an
> > update mechanism that loads new libraries?
> >
>
> No. I just want to be able to release new features faster in Gambas 3. But
> that will mean that:
>
> - If X > Y, 3.X must be able to run programs in 3.Y, maybe with a
> recompilation.
> - But not the contrary. 3.Y may not be able to run 3.X programs. Users will
> have to upgrade.
> - You won't be able to install 3.X and 3.Y on the same machine.
>
> Package dependencies must be more precise ("depends on 3.1 gambas runtime"
> instead of "depends on any 3.x gambas runtime").
>
> Only the 4.0 will be able to break the backward compatibility, by removing
> instructions, features, changing the meaning of them...
>
> Regards,
>
> --
> Benoît Minisini
>
>
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