On Wednesday 17 October 2007 05:01:53 김영현 wrote:
> Hello.
>
> Please, look at that code below.
>
> # Jamroot
>
> import xxx ;
>
> # in xxx.jam file
>
> SOME_DIR_PATH1 = /home/user/test ;
>
> rule path-constants ( name )
> {
> SOME_DIR_PATH2 = /home/user/test ;
>
> return $($(name)) ;
> }
>
> class Test
> {
You need
import xxx ;
here.
> rule __init__ ( )
> {
> echo "[" $(SOME_DIR_PATH1)
"]" ;
I don't think you can get at variable line this. [
modules.peek xxx : SOME_DIR_PATH1 ]
might work.
> echo "[" [ path-constants
SOME_DIR_PATH2 ] "]" ;
and here, with import in place, xxx.path-constants should
work.
> import "class" : new ;
>
> t = [ new Test ] ;
>
>
> # outputs
> $> bjam
> [ ] *"echo $(SOME_DIR_PATH1) - value is
empty"
> */home/user/test/test.jam:16: in object(Test) 15.__init__
> rule *path-constants unknown* in module
object(Test)15.
> ...
> ...
>
>
> I can't access variables and rules that are in
different scope, I mean not
> in class scope. why?
Because there's no scoping in jam. There are modules, and
each module has
its own namespace. class, actually, is a module in disguise.
Inside
module, you can access variables of that module, only. The
fact that
class is defined inside some other module does not help.
- Volodya
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