eval.c: preserve errinfo

* eval.c (rb_ensure): preserve errinfo accross ensure proc before
  JUMP_TAG().  [ruby-core:52022] [Bug #7802]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39156 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 32 insertions, 0 deletions

diff --git a/test/-ext-/exception/test_ensured.rb b/test/-ext-/exception/test_ensured.rb
new file mode 100644
index 0000000000..103250c678
--- /dev/null
+++ b/test/-ext-/exception/test_ensured.rb
@@ -0,0 +1,32 @@
+require 'test/unit'
+require_relative '../../ruby/envutil'
+
+module Bug
+  class Bug7802 < RuntimeError
+  end
+
+  class TestException < Test::Unit::TestCase
+    def test_ensured
+      assert_separately([], <<-'end;') # do
+
+        require '-test-/exception'
+
+        module Bug
+          class Bug7802 < RuntimeError
+            def try_method
+              raise self
+            end
+
+            def ensured_method
+              [1].detect {|i| true}
+            end
+          end
+        end
+
+        assert_raise(Bug::Bug7802, '[ruby-core:52022] [Bug #7802]') {
+          Bug::Exception.ensured(Bug::Bug7802.new)
+        }
+      end;
+    end
+  end
+end