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Re: Most of Elisp lacks lexical-binding: t
From: |
Stefan Monnier |
Subject: |
Re: Most of Elisp lacks lexical-binding: t |
Date: |
Mon, 04 Feb 2019 16:54:04 -0500 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/27.0.50 (gnu/linux) |
> The question is, though, at what point does it become the default?
IIUC Eli is not in a hurry to see it become the default.
> One answer would be, support a "dynamic-binding" cookie line for
> Emacs-27 (which does nothing by default),
You can already use
-*- lexical-binding:nil -*-
for that.
> incorporate your lexical-binding hack as an option.
> Then, go to lexical by default for Emacs-28.
This sounds rather optimistic to me. We should at least start by giving
some warnings from the byte-compiler when compiling am Elisp file without
lexical-binding. Maybe same thing when visiting an Elisp file.
There are also all the calls to `eval` which currently tend to mostly
still use dynamic binding (even in files labeled with
lexical-binding:t). E.g. we could advertise `eval` as taking a minimum
of 2 args so the byte-compiler would start warning about calls that
don't explicitly request lexical or dynamic binding (and hence fall
back to the default dynamic binding).
Stefan
- Most of Elisp lacks lexical-binding: t, Simon Reiser, 2019/02/02
- Re: Most of Elisp lacks lexical-binding: t, Alan Mackenzie, 2019/02/02
- Re: Most of Elisp lacks lexical-binding: t, Stefan Monnier, 2019/02/03
- Re: Most of Elisp lacks lexical-binding: t, T.V Raman, 2019/02/03
- Re: Most of Elisp lacks lexical-binding: t, Phillip Lord, 2019/02/04
- Re: Most of Elisp lacks lexical-binding: t,
Stefan Monnier <=
- Re: Most of Elisp lacks lexical-binding: t, Eli Zaretskii, 2019/02/04
- Re: Most of Elisp lacks lexical-binding: t, Phil Sainty, 2019/02/05
- Re: Most of Elisp lacks lexical-binding: t, Stefan Monnier, 2019/02/05
- Re: Most of Elisp lacks lexical-binding: t, Phillip Lord, 2019/02/06
- Re: Most of Elisp lacks lexical-binding: t, Stefan Monnier, 2019/02/06
- Re: Most of Elisp lacks lexical-binding: t, Paul Eggert, 2019/02/07
- Re: Most of Elisp lacks lexical-binding: t, Stefan Monnier, 2019/02/07
- Re: Most of Elisp lacks lexical-binding: t, Stefan Monnier, 2019/02/05
- Re: Most of Elisp lacks lexical-binding: t, Richard Stallman, 2019/02/06
- Re: Most of Elisp lacks lexical-binding: t, Stefan Monnier, 2019/02/06