On Tue, Sep 03, 2013 at 10:51:33PM -0400, David T. Lewis wrote: > On Tue, Sep 03, 2013 at 01:48:46PM +0200, Goubier Thierry wrote: > > > > Le 03/09/2013 13:36, David T. Lewis a ?crit : > > > > > >Can you post the method here first? I'd like to check it on some Squeak > > >images > > >before it goes into the repository. > > > > Here it is (at least an example): > > > > in OSProcess class > > > > isPharo3AndLater > > "Test if we are on Pharo 3.0" > > > > ^ (Smalltalk classNamed: 'SystemVersion') > > ifNil: [ false ] > > ifNotNil: [ :v | v current type = 'Pharo' and: [ v current > > major >= 3 ] ] > > The idea is right, but the details can be a PITA ;-) > > - In Squeak trunk, class SystemVersion exists. But it does not understand > #type, so this fails at runtime. > > - There are no implementors of #major in Squeak (but this can be rewritten > using #perform:). > > - In Squeak 3.8, #ifNil:ifNotNil: requires a block with no arguments. > > I did not check the other Pharo versions. > > Something like this might work: > > isPharo3AndLater > Smalltalk > at: #SystemVersion > ifPresent: [:cls | ((cls canUnderstand: #type) and: [ cls > canUnderstand: #major ]) > ifTrue: [^ cls current type = 'Pharo' and: [ cls > current major >= 3 ]]]. > ^false >
I am also checking the platform subtype implementation (OSProcess platformSubtype). In Pharo: Smalltalk os subtype ==> 'i686' This reflects the processor type, not the os subtype (it should be 'x86_64' on my PC). Is this intentional? Dave
