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Re: [External] : Re: Which Elisp types are mutable?

From: address@hidden
Subject: Re: [External] : Re: Which Elisp types are mutable?
Date: Mon, 5 Jul 2021 22:12:53 +0200
User-agent: Mutt/1.5.21 (2010-09-15)

On Mon, Jul 05, 2021 at 08:03:14PM +0000, Drew Adams wrote:
> > > But I'll mention that a Lisp symbol is a kind of
> > > mutable "object".  It has various properties [...]
> > 
> > Oh, Elisp doesn't differentiate  between the symbol proper
> > and its bindings?
> Sure, it does.  Though I may not understand what you
> mean by its bindings.
> The symbol is an object - a complex/compound thing.
> It has various properties.  One of the properties is
> its value as a variable, which is accessible using
> function `symbol-value'.  As a variable, that's the
> symbol's variable (global) "binding".

Hm. If you change a variable's value... does that count
as "mutating the symbol"? If you change the binding (e.g.
by entering another scope or by leaving it)?

Yes, there are those other pesky properties...

 - t

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