Hi Oscar,

�� �see Object class>>whatIsAPrimitive. �Further, most of the primitive methods you're seeing are methods that answer self, nil, true false or an inst var. �See the difference between these:

SystemNavigation new browseAllSelect: [:m| m isQuick]

SystemNavigation new browseAllSelect: [:m| m primitive > 0 and: [m isQuick not]]

SystemNavigation new browseAllSelect: [:m| m primitive > 0 and: [m isQuick not and: [(#(117 120) includes: m primitive) not]]]

HTH
Eliot

On Thu, Oct 21, 2010 at 9:18 AM, Oscar E A Callau <oalvarez@dcc.uchile.cl> wrote:

Hi all,

� � I have a (basic) question:

What is a primitive method?

In pharo 1.1.1, we have CompiledMethod>>primitive that basically return:

0 if the method is not a primitive method
>0 otherwise

But if you execute this on i.e. Number>>isNumber or Morph>>#model compiled methods you get that these two are primitive methods. Are they primitive methods?

Other (related) question is: When I executed the expression:

SystemNavigation default allPrimitiveMethods

, I get a OrderedCollection with 5581 elements. Are all those methods, primitive methods?


Thanks in advance
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