RE: PATCH: parser (was: Re: PATCH: Improved _mailboxes)

["Andrej Borsenkow" <Andrej.Borsenkow@xxxxxxxxxxxxxx>]

>
> Here is the first of the two. As I said, this mainly makes the parser
> create wordcode directly, no more extra compilation phase.
>
>

Sounds really interesting ... Two questions.

Is the code position-independent?
Is now code-compiler separated from code-interpreter?

The main reason for these questions - is it possible to precompile Zsh
function, store it and then execute directly? This may be intersted in many
cases - primary use is completion. Precompile completion functions; put
byte-code in single file; mmap this file. I do not know about speed increase
(if any) - but it should dramatically reduce RAM footprint on multiuser
systems. Currently every shell compiles every function on it's own and it
goes in private memory - and that is real RAM (O.K., it is real swap on some
systems :-) mmap'ing precompiled byte-code would mean, that just a single
copy exists.

It may be useful to generalize it to allow byte-code be the contents of
variable. Then Zsh could simply execute the content of

mapfile[/path/to/precompiled/file] ... may be, not as directly - with
something like imaginal zcompiler module

zcodeload file

/andrej