[Pharo-project] Problem with CompiledMethodTrailer
Mariano Martinez Peck
marianopeck at gmail.com
Tue May 10 10:46:55 CEST 2011
> > So I would like to still know:
> > 1) while those fucking CMs are not GCed
> > 2) how they can be generated.
> > I have spent the whole day and I couldn't :( I am more interested in
> > Notice that I didn't do anything weird. I just took the default Pharo1.3
> > image.
> you could take any method and just do
> with any trailer you would like to test.
Thanks. I don't understand how I can create a trailer with tempNames.
Actually, I don't understand what string to pass as tempNames. In your
#testEmbeddingTempNames you do:
code := 'testEmbeddingSourceCode
| trailer newTrailer code |
trailer := CompiledMethodTrailer new.
trailer sourceCode: code.
newTrailer := trailer testEncoding.
self assert: (newTrailer sourceCode = code).'.
trailer tempNames: code.
But I am not sure if that's correct. What does it means? that as temp names
I send the full source code? I tried and doesn't work.
And then, I read the following method which says something about writing the
tempNames with a particular way:
"Answer the temp names for the current method node in a form that captures
temp structure. The temps at each method and block scope level occur
space-separated, with any indirect temps enclosed in parentheses. Each
level is enclosed in square brackets. e.g.
'method level temps (indirect temp)[block args and temps
This representation can be reconstituted into a blockExtentsToTempsMap
by a CompiledMethod that has been copied with the
You can also look at CompiledMethodTrailerTest for examples (see
> As for finding pointers.. have you tried to use pointer finder? :)
> (it means i can't help with it more than you already know).
Yeah, I tried it. But maybe I am not seeing something :(
If you want to try it by yourself, just take any Pharo1.3 image like:
And explore any of the pointers of
((CompiledMethod allInstances select: [:each | each trailer kind =
#VarLengthSourcePointer] ) )
thanks for the effort
> > Thanks Igor for your help.
> > --
> > Mariano
> > http://marianopeck.wordpress.com
> Best regards,
> Igor Stasenko AKA sig.
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