Re: [PATCH] Feature: parameters declared in body

[Manuel Collado]

El 07/04/2022 a las 20:28, Kaz Kylheku escribió:
> Hi,
>
> I'm posting this as a proposal. If this is accepted, in some
> shape, then of course there will be test cases and
> documentation.
>
> The idea is that there is a new kind of attribute syntax
> whereby, inside a function, if we put the @param: prefix
> before a variable, that variable is added as a parameter
> to the surrounding function, which has the effect of making
> it a local variable.
>
> This effectively extends the Awk language with a nice way
> of defining locals, that is easy to use from code generators
> and macro preprocessors, and is based in the existing model
> of Awk local variables being parameters.

Perhaps a simpler approach is to introduce a @local directive. So 
instead of writing:

function myfun( arg1, arg2,        local1, local2) {
    ...
}

We could write:

function myfun( arg1, arg2 ) {
    @local local1, local2
    ....
}

The semantics of the latter could be a bit different. Extra arguments in 
the function call will not assign initial values to locals.

HTH. Regards.

--
Manuel Collado - http://mcollado.z15.es