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Re: master a0f6029: Fix misuses of `byte-compile-macro-environment`

From: Basil L. Contovounesios
Subject: Re: master a0f6029: Fix misuses of `byte-compile-macro-environment`
Date: Wed, 03 Mar 2021 14:44:02 +0000
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux)

monnier@iro.umontreal.ca (Stefan Monnier) writes:

> branch: master
> commit a0f60293d97cda858c033db4ae074e5e5560aab2
> Author: Stefan Monnier <monnier@iro.umontreal.ca>
> Commit: Stefan Monnier <monnier@iro.umontreal.ca>
>     Fix misuses of `byte-compile-macro-environment`

This seems to result in the following test failure with 'make check',
but strangely not with 'make test/pcase-tests':

  Test pcase-tests-macro backtrace:
    signal(void-function (pcase-tests-plus--pcase-macroexpander))
    apply(signal (void-function (pcase-tests-plus--pcase-macroexpander))
    #f(compiled-function () #<bytecode -0x130ab4f40ca06d1f>)()
    ert--run-test-internal(#s(ert--test-execution-info :test #s(ert-test
    ert-run-test(#s(ert-test :name pcase-tests-macro :documentation nil 
    ert-run-or-rerun-test(#s(ert--stats :selector (not (or ... ...)) :te
    ert-run-tests((not (or (tag :expensive-test) (tag :unstable))) #f(co
    ert-run-tests-batch((not (or (tag :expensive-test) (tag :unstable)))
    ert-run-tests-batch-and-exit((not (or (tag :expensive-test) (tag :un
    eval((ert-run-tests-batch-and-exit '(not (or (tag :expensive-test) (
    command-line-1(("-L" ":." "-l" "ert" "-l" "lisp/emacs-lisp/pcase-tes
  Test pcase-tests-macro condition:
      (void-function pcase-tests-plus--pcase-macroexpander)
     FAILED  5/9  pcase-tests-macro (0.000163 sec)

BTW, 'make bootstrap' now emits this warning: 

  In cl--sm-macroexpand:
  emacs-lisp/cl-macs.el:2301:61: Warning: Unused lexical argument `dontcare'

(The 'sm' is the artist's signature, right? ;)

Is this the right fix?

>From a29983cbbfb1fbd7cb2773d1e2dc89483df82bf4 Mon Sep 17 00:00:00 2001
From: "Basil L. Contovounesios" <contovob@tcd.ie>
Date: Wed, 3 Mar 2021 12:49:31 +0000
Subject: [PATCH] ; Pacify unused var warning in cl--sm-macroexpand.

 lisp/emacs-lisp/cl-macs.el | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lisp/emacs-lisp/cl-macs.el b/lisp/emacs-lisp/cl-macs.el
index 91146c4d0e..c38dc44ff6 100644
--- a/lisp/emacs-lisp/cl-macs.el
+++ b/lisp/emacs-lisp/cl-macs.el
@@ -2298,7 +2298,7 @@ cl--sm-macroexpand
             ;; The behavior of CL made sense in a dynamically scoped
             ;; language, but nowadays, lexical scoping semantics is more often
             ;; expected.
-            (`(,(or 'let 'let*) . ,(or `(,bindings . ,body) dontcare))
+            (`(,(or 'let 'let*) . ,(or `(,bindings . ,body) pcase--dontcare))
              (let ((nbs ()) (found nil))
                (dolist (binding bindings)
                  (let* ((var (if (symbolp binding) binding (car binding)))



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