[latex3-commits] [git/LaTeX3-latex3-latex3] master: Skip a micro-optimization in tl-act based functions (e214ce945)

[Bruno Le Floch]

Repository : https://github.com/latex3/latex3
On branch  : master
Link       : https://github.com/latex3/latex3/commit/e214ce9459caf6c4b409e3e9e8bf80aeb08260db

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

commit e214ce9459caf6c4b409e3e9e8bf80aeb08260db
Author: Bruno Le Floch <blflatex at gmail.com>
Date:   Tue Oct 27 09:30:11 2020 +0100

    Skip a micro-optimization in tl-act based functions
    
    The usual approach \exp_args:Nno \use:n {...} {code} was used to expand
    a particular auxiliary inside the definition, to gain one step of expansion
    at run time.  However, in these cases it requires several \exp_after:wN,
    quite ugly, and it doesn't gain much compared to the rather heavy code that
    \@@_act:NNNnn has to do anyways.


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

e214ce9459caf6c4b409e3e9e8bf80aeb08260db
 l3kernel/l3tl.dtx | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/l3kernel/l3tl.dtx b/l3kernel/l3tl.dtx
index 57daeed07..62bebed7e 100644
--- a/l3kernel/l3tl.dtx
+++ b/l3kernel/l3tl.dtx
@@ -3252,10 +3252,10 @@
 %   avoids losing outer braces. The result is stored as an argument for the
 %   dummy function \cs{@@_act_result:n}.
 %    \begin{macrocode}
-\exp_args:Nno \use:n { \cs_new:Npn \@@_act:NNNnn #1#2#3#4#5 }
+\cs_new:Npn \@@_act:NNNnn #1#2#3#4#5
   {
-    \exp_after:wN \group_align_safe_begin:
-    \@@_act_loop:w #5 {\s_@@_act_stop} ? \s_@@_act_stop
+    \group_align_safe_begin:
+    \@@_act_loop:w #5 { \s_@@_act_stop } ? \s_@@_act_stop
     {#4} #1 #3 #2
     \@@_act_result:n { }
   }
@@ -3291,11 +3291,11 @@
 %   this is needed by \cs{@@_act:NNNnn} when changing case (to record
 %   which direction the change is in), but not when reversing the tokens.
 %    \begin{macrocode}
-\exp_args:Nno \use:n { \cs_new:Npn \tl_reverse:n #1 }
+\cs_new:Npn \tl_reverse:n #1
   {
-    \exp_after:wN \__kernel_exp_not:w \exp_after:wN \exp_after:wN \exp_after:wN
+    \__kernel_exp_not:w \exp_after:wN
       {
-        \exp_after:wN \exp:w
+        \exp:w
         \@@_act:NNNnn
           \@@_reverse_normal:nN
           \@@_reverse_group_preserve:nn