From 3ed02c34e63411a1ef6d2f71d37b9ebd787b99c0 Mon Sep 17 00:00:00 2001
From: Elizabeth Mattijsen <liz@raku.rocks>
Date: Thu, 31 Aug 2023 15:45:11 +0200
Subject: [PATCH] RakuAST: reuse expectations list

instead of creating a new one every time.  Should help a bit in
memory churn.
---
 src/Raku/Grammar.nqp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/Raku/Grammar.nqp b/src/Raku/Grammar.nqp
index be4f8e50c97..2758a5cca23 100644
--- a/src/Raku/Grammar.nqp
+++ b/src/Raku/Grammar.nqp
@@ -20,6 +20,9 @@ my role stop[$stop] {
     token stopper { $stop }
 }
 
+#-------------------------------------------------------------------------------
+# Functionality common to all Raku grammars
+
 role Raku::Common {
 
 #-------------------------------------------------------------------------------
@@ -68,7 +71,7 @@ role Raku::Common {
 
     # Reset expectations
     method reset-expectations() {
-        self.'!set_highexpect'(nqp::list_s)
+        nqp::setelems(self.'!highexpect'(),0)
     }
 
 #-------------------------------------------------------------------------------