From bc929656fb1c675fde9b1652c10f7cd42d2f63fa Mon Sep 17 00:00:00 2001
From: KOBAYASHI Shuji <shuujii@gmail.com>
Date: Fri, 15 May 2020 21:17:24 +0900
Subject: Unify `eql?` receiver in `Hash` according to Ruby

### Example

  ```ruby
  # example.rb
  class A
    def eql?(o)
      p self.class
      super
    end
    def hash
      1
    end
  end

  class B < A; end

  h = {A.new => 1}
  h[B.new]
  ```

#### Before this patch:

  ```console
  $ bin/mruby example.rb
  A
  ```

#### After this patch (same as Ruby)

  ```console
  $ bin/mruby example.rb
  B
  ```
---
 src/hash.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/hash.c b/src/hash.c
index 8e7f97147..ec79a3def 100644
--- a/src/hash.c
+++ b/src/hash.c
@@ -373,7 +373,7 @@ ht_put(mrb_state *mrb, htable *t, mrb_value key, mrb_value val)
         deleted++;
         continue;
       }
-      if (ht_hash_equal(mrb, t, k, key)) {
+      if (ht_hash_equal(mrb, t, key, k)) {
         seg->e[i].val = val;
         return;
       }
@@ -454,7 +454,7 @@ ht_get(mrb_state *mrb, htable *t, mrb_value key, mrb_value *vp)
         return FALSE;
       }
       if (mrb_undef_p(k)) continue;
-      if (ht_hash_equal(mrb, t, k, key)) {
+      if (ht_hash_equal(mrb, t, key, k)) {
         if (vp) *vp = seg->e[i].val;
         return TRUE;
       }
-- 
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