Posted by nacho on Sep 25, 2014; 7:55pm
URL: https://forum.world.st/Passed-by-references-and-by-value-tp4780289p4780321.html

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stepharo wrote

> Hi,
> In PBE says that ordinary objects' ivars are passed by references and small
> integers are passed by value.

Strange I do not remember having written that.
Especially because in Smalltalk this has no real interest.

Well you also wrote that :p

"Deep in the implementation of Smalltalk, there are three different kinds of objects. There are (1) ordinary objects with instance variables that are passed by references, there are (2) small integers that are passed by value, and there are (3) indexable objects like arrays that hold a contiguous portion of memory. The beauty of Smalltalk is that you normally don’t need to care about the differences between these three kinds of object."

> Is there a way to know if a class is passed by reference or by value?
In Smalltalk consider that everything is an object and that you pass a
reference to the object.
> Only small integers are passed as value?
> Thanks in advance
> Nacho
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> -----
> Nacho
> Smalltalker apprentice.
> Buenos Aires, Argentina.
> --
> View this message in context: http://forum.world.st/Passed-by-references-and-by-value-tp4780289.html
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