Re: [TCLCORE] Tcl 9: Thinking about removing/re-packaging the Auto-Loader

[Duquette, W. H (318K) <wil...@jp...>]

On 12/6/12 8:22 PM, "Porter, Don" <don...@ni...> wrote:


>
>> For those who want to get rid of the auto-loader: would something like
>>[tcl::autoload] simplify what you're looking to simplify by getting rid
>>of the
>> current auto-loader?
>
>Here's my first baseline requirement:  does any proposed replacement
>autoloader
>do away with the [auto_import] command?  If not, it's not good enough,
>and we may
>as well just stick with what we have.

Here's the mechanism you suggested a couple of weeks ago:

namespace eval my {
    variable home ;# set when package/app is loaded/initialized

    proc foo {args} {
        variable home
        source [file join $home foo.tcl] ;# File with real [my::foo]
command.
        tailcall foo {*}$args ;# or similar [uplevel] games
    }
} ;# end namespace eval my


If some variant of this is adopted (as packaged up in tcl::autoload), then
each autoloaded command is a real command to begin with...it's just that
on first call, the initial implementation is transparently replaced with
the real implementation.  Thus, importing should work normally, and
auto_import should be unnecessary.  Unless, of course, I'm missing
something.

Will

>
>DGP