From 134bf9bbdc8c58d04c5cf4b268538b25732e5c33 Mon Sep 17 00:00:00 2001
From: pk19604014 <95385881+pk19604014@users.noreply.github.com>
Date: Tue, 29 Mar 2022 14:04:45 -0400
Subject: [PATCH] Preserve the order of expressions in deduced_param_list
 (#1157)

---
 executable_semantics/syntax/parser.ypp | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/executable_semantics/syntax/parser.ypp b/executable_semantics/syntax/parser.ypp
index 16b7c7efce80..e8443b9fede2 100644
--- a/executable_semantics/syntax/parser.ypp
+++ b/executable_semantics/syntax/parser.ypp
@@ -786,20 +786,20 @@ deduced_param_list:
       $$ = std::vector<Nonnull<AstNode*>>();
       $$.push_back($1);
     }
-| generic_binding COMMA deduced_param_list
+| deduced_param_list COMMA generic_binding
     {
-      $$ = $3;
-      $$.push_back($1);
+      $$ = $1;
+      $$.push_back($3);
     }
 | variable_declaration
     {
       $$ = std::vector<Nonnull<AstNode*>>();
       $$.push_back($1);
     }
-| variable_declaration COMMA deduced_param_list
+| deduced_param_list COMMA variable_declaration
     {
-      $$ = $3;
-      $$.push_back($1);
+      $$ = $1;
+      $$.push_back($3);
     }
 ;
 deduced_params: