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|
" 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
]
|
