OK, in the end I decided on primitive number 169. It doesn't waste the 150-159 range and is in amongst primitiveAdoptInstance and primitiveSetIdentityHash. David, would you like to integrate this into the main branch? On Wed, Oct 12, 2011 at 10:47 AM, Mariano Martinez Peck < marianopeck@gmail.com> wrote:
On Wed, Oct 12, 2011 at 7:29 PM, Eliot Miranda <eliot.miranda@gmail.com>wrote:
On Wed, Oct 12, 2011 at 10:26 AM, Mariano Martinez Peck < marianopeck@gmail.com> wrote:
On Wed, Oct 12, 2011 at 6:44 PM, Eliot Miranda <eliot.miranda@gmail.com>wrote:
On Wed, Oct 12, 2011 at 8:38 AM, Levente Uzonyi <leves@elte.hu> wrote:
On Wed, 12 Oct 2011, Clara Allende wrote:
Hi guys,
I'm wondering, why?
ProtoObject>> ~~ anObject "Answer whether the receiver and the argument are not the same object (do not have the same object pointer)."
self == anObject ifTrue: [^ false] ifFalse: [^ true]
Instead of: ProtoObject>> ~~ anObject "Answer whether the receiver and the argument are not the same object (do not have the same object pointer)."
^(self == anObject) not
And why? Object >> ~= anObject "Answer whether the receiver and the argument do not represent the same object."
^self = anObject == false
Instead of Object>> ~= anObject "Answer whether the receiver and the argument do not represent the same object."
^(self = anObject) not.
Is there any particular reason for this that I'm missing?
Performance.
But better still is to add a ~~ primitive. I did this for VisualWorks. e.g. primitive 150 is free. why don't we use that for 1.4/4.3?
with or without special bytecode associated?
Initially without.
+1
Dynamic frequency is low, and primitive adds significant performance over the non-primitive version. One could use the blockCopy: special bytecode but I'd wait until doing a complete bytecode set redesign.
Levente
Thanks in advance!
--
"*Most good programmers do programming not because they expect to get paid or get adulation by the public, but because it is fun to program.*"
Linus Torvalds
-- best, Eliot
-- Mariano http://marianopeck.wordpress.com
-- best, Eliot
-- Mariano http://marianopeck.wordpress.com
-- best, Eliot