It's probably a bug, and I just corrected some miss-initialization of lastJumpIfPcStack instance variable in Decompiler in Squeak. But you didn't provide enough information... Can you reliably reproduce it? Or provide full contents of PharoDebug.log. If you can, please open a bug report. Nicolas Le 21 avril 2012 01:54, <recursive68@gmail.com> a écrit :

Hi,

When I try and inspect some FFI code in Pharo 1.4 on OSX 10.7.3, it fails and gets stuck in a loop doing this:

MessageNotUnderstood: receiver of "addLast:" is nil UndefinedObj ect(Object)>>doesNotUnderstand: #addLast: Decompiler>>jump:if: Decompiler(InstructionStream)>>interpretNextInstructionFor: Decompiler>>interpretNextInstructionFor: Decompiler>>statementsTo: Decompiler>>blockTo: Decompiler>>doClosureCopyCopiedValues:numArgs:blockSize: Decompiler>>pushClosureCopyNumCopiedValues:numArgs:blockSize: Decompiler(InstructionStream)>>interpretExtension:in:for: Decompiler(InstructionStream)>>interpretNextInstructionFor:

Any ideas ?

Thanks