proc.c: Binding#local_variables

* proc.c (bind_local_variables): allowing binding to list its
  local variables.  patch by Jack Danger Canty <jackdanger AT
  squareup.com> at [ruby-core:56543].  [Feature #8773]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44392 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 11 insertions, 0 deletions

diff --git a/test/ruby/test_variable.rb b/test/ruby/test_variable.rb
index 32b3d61573..321cd7e4c5 100644
--- a/test/ruby/test_variable.rb
+++ b/test/ruby/test_variable.rb
@@ -83,6 +83,17 @@ class TestVariable < Test::Unit::TestCase
     end.call
   end
 
+  def local_variables_of(bind)
+    this_should_not_be_in_bind = 2
+    bind.local_variables
+  end
+
+  def test_local_variables_from_other_method_binding
+    feature8773 = '[Feature #8773]'
+    x = 1
+    assert_equal([:x], local_variables_of(binding), feature8773)
+  end
+
   def test_global_variable_0
     assert_in_out_err(["-e", "$0='t'*1000;print $0"], "", /\At+\z/, [])
   end