[A-a-p-user] Scopes

[Steve H. <ho...@ca...>]

Hello all,

I'm confused about the :global command and the way scopes work in
A-A-P. If a variable is declared as being :global, shouldn't it be
accessible (and modifiable) from any target in the same recipe? If
not, what's the :global command for ?

Take this simple script:

#####################################
:global Var1
Var1 = 'aaa'

target1:
  :print Var1 before assignment is $Var1
  Var1 = bbb
  :print Var1 after assignment is $Var1
  
target2:
  :print Var1 in target2 is $Var1
  
all: target1 target2
#####################################

It will output:

Var1 before assignment is 'aaa'
Var1 after assignment is bbb
Var1 in target2 is 'aaa'

Is this correct ? Do I really have to :export each modified variable
inside a target to have it available to other targets ?

I think that, to match Python's scope, even without the :global
command, any variable declared in the same recipe should be global in
the same recipe.

Also, it's very confusing that the variable can be imported into a
target (as it can see in the first output's line) but not exported
automatically. 

Any comments ?

-- 
Best regards,
 Steve Howe                          mailto:ho...@ca...