[squeak-dev] Selectors with underscores
tapplek at gmail.com
Thu Mar 11 17:54:47 UTC 2010
On Thu, Mar 11, 2010 at 03:36:43PM +0100, Torsten Bergmann wrote:
> Pharo allows you to use underscores in method selectors.
> This is currently in Pharo 1.1 and not 1.0.
> Does that makes sense to have in Squeak trunk/Cuis too?
I say support it. Cobalt and Croquet have supported this for
years. I have an experimental patch to MC1.5 that converts
underscore assignments to := at load time, if the compiler
raises a SyntaxError about them. How it works:
- Parser throws a syntax error
- MC catches the error
- MC uses the parser to find underscore assignments (and not
underscores in strings/comments/names) and replace them
- MC retries compiling the method
- If a syntax error is raised again, MC lets it thru and you see
the Syntax Error dialog box
- If any methods were changed during load, MC tells you about
them so you can review them and save the package
Note that it's triggered by a SyntaxError, so this will not be
done if the preference is to allow underscore assignments.
Also, it only fixes things the parser things are disallowed
underscore assignments, so it is quite conservative.
I use this to prepare packages for loading into Cobalt (where
underscores assignments are disallowed by default)
Matthew Fulmer (a.k.a. Tapple)
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