libs-steptalk/Examples/Smalltalk/scope.st
Adam Fedor c2c2d22254 Initial revision
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/steptalk/trunk@13642 72102866-910b-0410-8b05-ffd578937521
2002-05-13 22:13:06 +00:00

63 lines
1.1 KiB
Smalltalk

" Variable scope example
try to run:
> stexec scope.st , scope.st
"
[| :global
main
| local |
Transcript showLine: ':: Start'.
(extern isNil) ifTrue:
[
Transcript showLine: 'Script was run for first time. Setting extern.'.
extern := 100.
]
ifFalse:
[
Transcript showLine: 'Extern: ', (extern stringValue).
].
local := 10.
Transcript showLine: 'Local: ', (local stringValue).
self setLocal:20.
Transcript showLine: 'Local after call: ', (local stringValue),
' (has to be 10 not 20)'.
global := 10.
Transcript showLine: 'Global: ', (global stringValue).
self setGlobal:20.
Transcript showLine: 'Global after call 1: ', (global stringValue),
' (has to be 20 not 10)'.
self testGlobal.
Transcript showLine: 'Global after call 2: ', (global stringValue),
' (has to be 20 not 0)'.
^nil
!
setLocal:val
| local |
local := val.
^self
!
setGlobal:val
global := val.
^self
!
testGlobal
| global |
global := 0.
^self
]