On 1 June 2018 at 14:59, Ben Coman <btc@openinworld.com> wrote:
I'm curious about the following behaviour...

"In Playground, first evaluate..."
s := Semaphore new.
[ [ s wait.�� ��Transcript crShow: 'x' ] whileTrue ] fork.

"then later..."
s signal.

==> 'x' is seen in Transcript
but then an error pops up "#wait was sent to nil"

So...�� 's'�� *was*�� valid and then its not?

cheers -ben

Sorry I got distracted.�� I should have added version info...
����
Image
-----
C:\PharoLauncher\images\Pharo-7.0.0-alpha.build.994.sha.6b52ae6.arch.32bit\Pharo-7.0.0-alpha.build.994.sha.6b52ae6.arch.32bit.image
Pharo7.0alpha
Build information: Pharo-7.0+alpha.build.994.sha.6b52ae62b755d8778fa0b5a4ac53b39b6c107dc9 (32 Bit)
Unnamed

Virtual Machine
---------------
C:\Users\Ben\Documents\Pharo\vms\70-x86\Pharo.exe
CoInterpreter VMMaker.oscog-eem.2361 uuid: 7ca2f89a-de70-422f-b92b-54f91ac4e47b Apr 12 2018
StackToRegisterMappingCogit VMMaker.oscog-eem.2361 uuid: 7ca2f89a-de70-422f-b92b-54f91ac4e47b Apr 12 2018
VM: 201804122226 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Date: Thu Apr 12 15:26:17 2018 -0700 $ CommitHash: 07c6dc3 $ Plugins: 201804122226 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $

Win32 built on Apr 12 2018 22:41:03 GMT Compiler: 6.4.0
VMMaker versionString VM: 201804122226 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Date: Thu Apr 12 15:26:17 2018 -0700 $ CommitHash: 07c6dc3 $ Plugins: 201804122226 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $
CoInterpreter VMMaker.oscog-eem.2361 uuid: 7ca2f89a-de70-422f-b92b-54f91ac4e47b Apr 12 2018
StackToRegisterMappingCogit VMMaker.oscog-eem.2361 uuid: 7ca2f89a-de70-422f-b92b-54f91ac4e47b Apr 12 2018

VM as selected by PharoLauncher.

cheers -ben