Feature #249: wish list item: binding.set_local_variable

• Status: Rejected
• Assignee: ko1 (Koichi Sasada)
• Target version: -

[rogerdpack (Roger Pack)]

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twould indeed be nice to be able to set local variables in further up scopes.
Not quite sure how this would be accomplished.
Maybe make ruby_scope have a ->prev pointer? And then force the parser to re-run, like it does in eval?
Thanks!
-R
=end

=begin
Hi --

On Wed, 9 Jul 2008, Roger Pack wrote:

Issue #249 has been reported by Roger Pack.

---

Feature #249: wish list item: binding.set_local_variable
http://redmine.ruby-lang.org/issues/show/249

Author: Roger Pack
Status: Open
Priority: Normal
Assigned to:
Category:
Target version:

twould indeed be nice to be able to set local variables in further up scopes.
Not quite sure how this would be accomplished.
Maybe make ruby_scope have a ->prev pointer? And then force the parser to re-run, like it does in eval?

That would sort of do away with the notions of local scope, though. I
think it's important for there to be true local scope, such that
variable names can be changed and eliminated during refactoring, say,
without being coupled to other code.

David

--
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=end

[rogerdpack (Roger Pack)]

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yeah this appears to be low priority. I'm able to overcome it with 1.8.x with MRI + parsetree about the same way this would have given me.
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[rogerdpack (Roger Pack)]

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Appears that it's already possible:

a = 3
=> 3
b = binding
=> #Binding:0x4e66c6c
b.eval("local_variables")
=> ["_", "rockies", "all", "o", "g", "a", "b"]
b.eval("a = 4")
a
=> 4

for better or worse.
Fascinating.
-=R
=end

[rogerdpack (Roger Pack)]

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that's with using facets [require 'facets'] before hand
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[shyouhei (Shyouhei Urabe)]

• Assignee set to ko1 (Koichi Sasada)

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=end

[rogerdpack (Roger Pack)]

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This was as expected (not a bug) so can close.
Thanks!
=end

[rogerdpack (Roger Pack)]

• Status changed from Open to Rejected

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Turns out this is indeed possible.
=end