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From: Marlon Richert <marlon.richert@gmail.com>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: [BUG] zsh/param/private scoping error
Date: Wed, 1 Sep 2021 14:49:58 +0300	[thread overview]
Message-ID: <CAHLkEDtxe8wtOZ8dWC2tUdhQBpSZtKjGc7MrzJYBJ9oPdjP9Pw@mail.gmail.com> (raw)

The following two functions are normally equivalent:

() { typeset -g tst }
() { tst= }

Both result in a global variable 'tst' being created. However when the
second function is called from a function that happens to declare a
private variable with the same name, it no longer creates a global
variable but instead aborts with an error:

% () { private tst; () { tst= } }
(anon):1: tst: attempt to assign private in nested scope
%

This is not how one would expect private variables to behave. Inside
the inner function, the private variable should be completely out of
scope and the `tst=` statement should result in the creation of a
global variable.

Note that the error above does not happens when there already exists a
global variable with the same name:

% typeset -g tst
% () { private tst; () { tst= } }
%


             reply	other threads:[~2021-09-01 11:50 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-01 11:49 Marlon Richert [this message]
2021-09-01 14:09 ` Daniel Shahaf
2021-09-01 16:21   ` Marlon Richert
2021-09-01 14:39 ` Bart Schaefer
2021-09-01 16:03   ` Mikael Magnusson
2021-09-01 16:11     ` Marlon Richert
2021-09-01 17:00       ` Mikael Magnusson
2021-09-01 17:35         ` Bart Schaefer
2021-10-03 21:55           ` Bart Schaefer
2021-10-04  4:54             ` Mikael Magnusson
2021-10-04 15:12               ` Bart Schaefer

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