From 8bc277f1d297ab933d8da5f7b5014e0eae2f0f19 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 14 Nov 2016 05:17:55 +0000
Subject: vm_eval.c: fstring instance_eval

* vm_eval.c (singleton_class_for_eval): enable fstring singleton
  class for instance_eval.  [ruby-core:78116] [Bug #12930]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56777 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_eval.rb | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_eval.rb b/test/ruby/test_eval.rb
index dba54773cb..fc08d61ef5 100644
--- a/test/ruby/test_eval.rb
+++ b/test/ruby/test_eval.rb
@@ -503,6 +503,14 @@ class TestEval < Test::Unit::TestCase
     assert_same a, b
   end
 
+  def test_fstring_instance_eval
+    bug = "[ruby-core:78116] [Bug #12930]".freeze
+    assert_same bug, (bug.instance_eval {self})
+    assert_raise(RuntimeError) {
+      bug.instance_eval {@ivar = true}
+    }
+  end
+
   def test_gced_binding_block
     assert_normal_exit %q{
       def m
-- 
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