On Tue, Apr 4, 2017 at 3:47 PM, Eliot Miranda <eliot.miranda@gmail.com> wrote:

Hi Levente,

> On Apr 3, 2017, at 11:14 AM, Levente Uzonyi <leves@caesar.elte.hu> wrote:
>
> The correct solution is:
>
> Array streamContents: [ :stream |
> Smalltalk globals associationsDo: [ :binding |
> binding class == Global ifTrue: [ stream nextPut: binding ] ] ].

Or shorter

Smalltalk globals declarations select: #canAssign

maybe? Unlike class bindings, global vars are writable.

Why not

Array streamContents: [ :stream |
Smalltalk globals associationsDo: [ :binding |
(binding class == Global
and: [ binding value isBehavior
and: [ binding key == binding value name ] ]) ifTrue:
[ stream nextPut: binding ] ] ].

Because we want to know the global *variables*, that is everything *but* the class bindings. So we look for instances of Global, not ClassBinding, no matter the value.

> The role of declarations and bindings is still not clear in Environments, therefore, as I wrote it before, unrelated to tool support, I still consider Environments to be incomplete.

I thought 'declarations' are the things owned by this environment (excluding imports), whereas 'bindings' are the things visible in this environment (including imports).

- Bert -