From a893877b0dc62d29dc4b220a95a6d9ee36b3a263 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Thu, 1 Jun 2017 09:38:42 +0900
Subject: Check for super using OP_ARGARY; fix #3678

It generates a wasted empty array for each `super` call though.
It should be fixed in the future, if possible.
---
 mrbgems/mruby-compiler/core/codegen.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/mrbgems/mruby-compiler/core/codegen.c b/mrbgems/mruby-compiler/core/codegen.c
index 5593dc669..3c13d23a6 100644
--- a/mrbgems/mruby-compiler/core/codegen.c
+++ b/mrbgems/mruby-compiler/core/codegen.c
@@ -1939,9 +1939,19 @@ codegen(codegen_scope *s, node *tree, int val)
 
   case NODE_SUPER:
     {
+      codegen_scope *s2 = s;
+      int lv = 0;
       int n = 0, noop = 0, sendv = 0;
 
       push();        /* room for receiver */
+      while (!s2->mscope) {
+        lv++;
+        s2 = s2->prev;
+        if (!s2) break;
+      }
+      genop(s, MKOP_ABx(OP_ARGARY, cursp(), (lv & 0xf)));
+      push(); push();         /* ARGARY pushes two values */
+      pop(); pop();
       if (tree) {
         node *args = tree->car;
         if (args) {
-- 
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