https://git.ruby-lang.org/ruby.git/commit/?id=2d6f8db3d6

From 2d6f8db3d60e0c54cc51d2bd5ed6b86af7ef15ae Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=8D=9C=E9=83=A8=E6=98=8C=E5=B9=B3?=
 <shyouhei@r...>
Date: Fri, 12 Jun 2020 11:04:46 +0900
Subject: add spaces [ci skip]


diff --git a/array.c b/array.c
index 2d16287..3bbc094 100644
--- a/array.c
+++ b/array.c
@@ -1573,15 +1573,18 @@ make_room_for_unshift(VALUE ary, const VALUE *head, VALUE *sharedp, int argc, lo https://github.com/ruby/ruby/blob/trunk/array.c#L1573
 {
     if (head - sharedp < argc) {
         long room = capa - len - argc;
+
         room -= room >> 4;
         MEMMOVE((VALUE *)sharedp + argc + room, head, VALUE, len);
         head = sharedp + argc + room;
     }
     ARY_SET_PTR(ary, head - argc);
     assert(ARY_SHARED_ROOT_OCCUPIED(ARY_SHARED_ROOT(ary)));
+
     ary_verify(ary);
     return ARY_SHARED_ROOT(ary);
 }
+
 static VALUE
 ary_modify_for_unshift(VALUE ary, int argc)
 {
@@ -1617,11 +1620,13 @@ ary_modify_for_unshift(VALUE ary, int argc) https://github.com/ruby/ruby/blob/trunk/array.c#L1620
 	return ary;
     }
 }
+
 static VALUE
 ary_ensure_room_for_unshift(VALUE ary, int argc)
 {
     long len = RARRAY_LEN(ary);
     long new_len = len + argc;
+
     if (len > ARY_MAX_SIZE - argc) {
         rb_raise(rb_eIndexError, "index %ld too big", new_len);
     }
@@ -1631,6 +1636,7 @@ ary_ensure_room_for_unshift(VALUE ary, int argc) https://github.com/ruby/ruby/blob/trunk/array.c#L1636
     else {
         VALUE shared_root = ARY_SHARED_ROOT(ary);
         long capa = RARRAY_LEN(shared_root);
+
         if (! ARY_SHARED_ROOT_OCCUPIED(shared_root)) {
             return ary_modify_for_unshift(ary, argc);
         }
@@ -1638,9 +1644,10 @@ ary_ensure_room_for_unshift(VALUE ary, int argc) https://github.com/ruby/ruby/blob/trunk/array.c#L1644
             return ary_modify_for_unshift(ary, argc);
         }
         else {
-            rb_ary_modify_check(ary);
             const VALUE * head = RARRAY_CONST_PTR_TRANSIENT(ary);
             void *sharedp = (void *)RARRAY_CONST_PTR_TRANSIENT(shared_root);
+
+            rb_ary_modify_check(ary);
             return make_room_for_unshift(ary, head, sharedp, argc, capa, len);
         }
     }
-- 
cgit v0.10.2


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