ST 4U 329: Binary Message Changes in VisualWorks
Today's Smalltalk 4 You looks at a recent VisualWorks change in binary messages that might impact your upgrade. If you have trouble viewing it here in the browser, you can also navigate directly to YouTube. To watch now, click on the image below:
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Tags: smalltalk, visualworks, binary messages
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[st4u329-iPhone.m4v ( Size: 3005143 )]
Comments
Re: ST 4U 329: Binary Message Changes in VisualWorks
[anonymous] January 9, 2013 22:46:08.810
I believe the new tokenizer is incorrect. In the case of '@-5, monadic minus in front of a numeric literal should be assumed, rather than #@- as a message. However in the case of @-x (a variable), the assumption of the message #@- would be correct. Perhaps the compiler writer wanted to remove this idiosyncrasy. I'll have to check my own tokenizer, but I believe this is how I coded it - with some admittedly kludgy look ahead code.