[Omake] variable capture in anonymous functions

[Christopher L Conway]

Aleksey,

Thanks for the suggestion. But...

$ cat OMakefile
X = re
Y = flux

F = $(fun X, Y, $(addsuffix $(protected.Y), $(protected.X)))

println( $(F foo, bar) )

$ omake
make[0]: Entering directory `/media/sda6/src/tests/omake/omake.8'
*** omake: reading OMakefiles
fooflux
*** omake: finished reading OMakefiles (0.02 sec)
*** omake: done (0.02 sec, 0/0 scans, 0/0 rules, 1/33 digests)

That's weird!

Chris


On Tue, Mar 18, 2008 at 7:36 PM, Aleksey Nogin <anogin at hrl.com> wrote:
> Chris,
>
>  Sorry for taking so long for me to respond.
>
>  Yes, this is a very well-known bug and it's fixed in 0.9.8.x SVN (the
>  upcoming 0.9.8.6 release will change the syntax of the "fun" function).
>
>  A temporary workaround is to use $(protected.X) in the body - this will
>  tell OMake which "X" to look for...
>
>  Aleksey
>
>
>
>  On 04.03.2008 20:15, Christopher L Conway wrote:
>
>  > I'm seeing variable bindings from the surrounding scope override
>  > parameter bindings in anonymous functions. Is there something I am
>  > missing about the scoping rules?
>  >
>  > $ cat Omakefile
>  > X = zanzi
>  >
>  > apply($(fun X, $(println $(X)bar)), foo)
>  > apply($(fun Y, $(println $(Y)bar)), foo)
>  >
>  > $ omake
>  > make[0]: Entering directory `/media/sda6/src/tests/omake/omake.8'
>  > *** omake: reading OMakefiles
>  > zanzibar
>  > foobar
>  > *** omake: finished reading OMakefiles (0.02 sec)
>  > *** omake: done (0.02 sec, 0/0 scans, 0/0 rules, 0/33 digests)
>  > $ omake --version
>  > OMake 0.9.8.5 (release 2):
>  >       build [Wed Aug 8 09:10:36 2007]
>  >       on wagstaff
>  >
>  > Default library directory : /home/chris/tools/lib/omake
>  >
>  > Thanks,
>  > Chris
>  > _______________________________________________
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>
>
>  --
>  Aleksey Nogin, Research Scientist
>  Advanced Technologies Department, Information & System Sciences Lab
>  HRL Laboratories, LLC, Malibu, CA
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