* vm_insnhelper.c: attr_writer should return its argument [Bug #7773]

* test/ruby/test_basicinstructions.rb: Test for above

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39121 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 12 insertions, 1 deletions

diff --git a/test/ruby/test_basicinstructions.rb b/test/ruby/test_basicinstructions.rb
index e93b339377..4aa164e0c4 100644
--- a/test/ruby/test_basicinstructions.rb
+++ b/test/ruby/test_basicinstructions.rb
@@ -502,6 +502,7 @@ class TestBasicInstructions < Test::Unit::TestCase
 
   class OP
     attr_reader :x
+    attr_accessor :foo
     def x=(x)
       @x = x
       :Bug1996
@@ -602,6 +603,17 @@ class TestBasicInstructions < Test::Unit::TestCase
     assert_equal 4, x[0]
   end
 
+  def test_send_opassing
+    bug7773 = '[ruby-core:51821]'
+    x = OP.new
+    assert_equal 42, x.foo = 42, bug7773
+    assert_equal 42, x.foo, bug7773
+    assert_equal -6, x.send(:foo=, -6), bug7773
+    assert_equal -6, x.foo, bug7773
+    assert_equal :Bug1996, x.send(:x=, :case_when_setter_returns_other_value), bug7773
+    assert_equal :case_when_setter_returns_other_value, x.x, bug7773
+  end
+
   def test_backref
     /re/ =~ 'not match'
     assert_nil $~
@@ -683,5 +695,4 @@ class TestBasicInstructions < Test::Unit::TestCase
     assert_equal [], [*a]
     assert_equal [1], [1, *a]
   end
-
 end