[latex3-commits] [latex3/latex2e] gh1189: Only optimise cmds not envs (2140dec7)

[github at latex-project.org]

Repository : https://github.com/latex3/latex2e
On branch  : gh1189
Link       : https://github.com/latex3/latex2e/commit/2140dec71443084aaa3b909ab80724bc62b3b888

>---------------------------------------------------------------

commit 2140dec71443084aaa3b909ab80724bc62b3b888
Author: Joseph Wright <joseph.wright at morningstar2.co.uk>
Date:   Tue Nov 28 13:41:25 2023 +0000

    Only optimise cmds not envs


>---------------------------------------------------------------

2140dec71443084aaa3b909ab80724bc62b3b888
 base/ltcmd.dtx | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/base/ltcmd.dtx b/base/ltcmd.dtx
index 1798230e..1b92e601 100644
--- a/base/ltcmd.dtx
+++ b/base/ltcmd.dtx
@@ -451,15 +451,20 @@
 %   {Optimise cmd creation for all-\texttt{m} arguments}
 %   At this stage we can check for a short-cut possibility: if the signature
 %   is just made up of \cs{@@_expandable_grab_m:w}, then we can produce an
-%   optimised document command.
+%   optimised document command. This only applies to document commands,
+%   not creation of environments (which are more complex).
 %    \begin{macrocode}
 \cs_new_protected:Npn \@@_declare_cmd_code:Nnn
   {
-    \str_if_eq:eeTF
-      { \exp_not:V \l_@@_signature_tl }
+    \bool_lazy_and:nnTF
+      { ! \l_@@_environment_bool }
       {
-        \prg_replicate:nn \l_@@_current_arg_int
-          { \exp_not:N \@@_expandable_grab_m:w }
+        \str_if_eq_p:ee
+          { \exp_not:V \l_@@_signature_tl }
+          {
+            \prg_replicate:nn \l_@@_current_arg_int
+              { \exp_not:N \@@_expandable_grab_m:w }
+          }
       }
       { \@@_declare_cmd_optimised:Nnn }
       {