isn't it historical ?
it used to mean :=, no?
nicolas
On Mon, 2020-04-27 at 14:51 +0200, Stéphane Ducasse wrote:
> Hi
>
> Doig the XP for magic literals I found
>
> Symbol >> precedence
> "Answer the receiver's precedence, assuming it is a valid
> Smalltalk
> message selector or 0 otherwise. The numbers are 1 for unary,
> 2 for binary and 3 for keyword selectors."
>
> self size = 0 ifTrue: [^ 0].
> (self first isLetter or: [ self first = $_ ]) ifFalse: [^ 2].
> self last = $: ifTrue: [^ 3].
> ^ 1
>
>
>
> #'_foo' precedence.
> "1"
> #'_+' precedence.
> "1"
> #'+' precedence.
> "2"
> #'foo' precedence.
> "1"
> #'foo:' precedence.
> "3"
> #'_foo:' precedence.
> “3"
>
> And I wonder why we are concerned with _
>
> S.
>
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> Stéphane Ducasse
> http://stephane.ducasse.free.fr / http://www.pharo.org
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--
Nicolas Anquetil
RMod team -- Inria Lille
