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bug#30078: 27.0.50; Use lexical-binding for M-:
From: |
Michael Heerdegen |
Subject: |
bug#30078: 27.0.50; Use lexical-binding for M-: |
Date: |
Fri, 12 Jan 2018 21:55:25 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
Eli Zaretskii <eliz@gnu.org> writes:
> Then you are saying that turning on lexical-binding in *scratch* will
> change nothing at all? I very much doubt that, and my witness are
> all those packages that broke due to lexical-binding and needed minor
> fixes.
I do what has been proposed for months. I liked it.
What are we doing with scratch?
(1) Setting global variables, defining small functions and such simple
stuff. lexical-binding doesn't make a big difference here.
(2) Re-evaluate parts of the source code, often with small
modifications, for testing and debugging. Since more and more packages
make active use of lexical-binding, this is actually broken currently!
Re-evaluating parts of source code in scratch can currently break Emacs.
(3) I often posted some code examples in emacs-help which made use of
lexical-binding. People pasted it into scratch and it didn't work.
It's currently even not trivial to evaluate such examples with
lexical-binding on.
OTOH, there is not too much code that really relies on dynamical binding
mode. And very often, such code is just written in a bad style (missing
`defvar's etc.).
In summary, I think the advantages clearly prevail.
Michael.
- bug#30078: 27.0.50; Use lexical-binding for M-:, (continued)
- bug#30078: 27.0.50; Use lexical-binding for M-:, Eli Zaretskii, 2018/01/12
- bug#30078: 27.0.50; Use lexical-binding for M-:, Stefan Monnier, 2018/01/12
- bug#30078: 27.0.50; Use lexical-binding for M-:, Eli Zaretskii, 2018/01/12
- bug#30078: 27.0.50; Use lexical-binding for M-:, Stefan Monnier, 2018/01/12
- bug#30078: 27.0.50; Use lexical-binding for M-:, Eli Zaretskii, 2018/01/12
- bug#30078: 27.0.50; Use lexical-binding for M-:, Noam Postavsky, 2018/01/12
- bug#30078: 27.0.50; Use lexical-binding for M-:,
Michael Heerdegen <=
- bug#30078: 27.0.50; Use lexical-binding for M-:, Eli Zaretskii, 2018/01/12
- bug#30078: 27.0.50; Use lexical-binding for M-:, Michael Heerdegen, 2018/01/12
- bug#30078: 27.0.50; Use lexical-binding for M-:, Luis Gerhorst, 2018/01/13
- bug#30078: 27.0.50; Use lexical-binding for M-:, Eli Zaretskii, 2018/01/13
- bug#30078: 27.0.50; Use lexical-binding for M-:, Luis Gerhorst, 2018/01/13
- bug#30078: 27.0.50; Use lexical-binding for M-:, Robert Cochran, 2018/01/14
- bug#30078: 27.0.50; Use lexical-binding for M-:, Stefan Monnier, 2018/01/13
- bug#30078: 27.0.50; Use lexical-binding for M-:, Eli Zaretskii, 2018/01/13
- bug#30078: 27.0.50; Use lexical-binding for M-:, Stefan Monnier, 2018/01/13
- bug#30078: 27.0.50; Use lexical-binding for M-:, Richard Stallman, 2018/01/13