mame	2018-01-09 14:19:18 +0900 (Tue, 09 Jan 2018)

  New Revision: 61710

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=61710

  Log:
    Allow `-> do rescue; end` as well as `proc do rescue; end`
    
    https://twitter.com/takiuchi/status/950593389963051008

  Modified files:
    trunk/parse.y
    trunk/test/ruby/test_syntax.rb
Index: test/ruby/test_syntax.rb
===================================================================
--- test/ruby/test_syntax.rb	(revision 61709)
+++ test/ruby/test_syntax.rb	(revision 61710)
@@ -1128,6 +1128,24 @@ eom https://github.com/ruby/ruby/blob/trunk/test/ruby/test_syntax.rb#L1128
     assert_equal(:begin, result)
   end
 
+  def test_rescue_do_end_ensure_in_lambda
+    result = []
+    eval("#{<<-"begin;"}\n#{<<-"end;"}")
+    begin;
+      -> do
+        result << :begin
+        raise "An exception occurred!"
+      rescue
+        result << :rescue
+      else
+        result << :else
+      ensure
+        result << :ensure
+      end.call
+    end;
+    assert_equal([:begin, :rescue, :ensure], result)
+  end
+
   def test_return_in_loop
     obj = Object.new
     def obj.test
Index: parse.y
===================================================================
--- parse.y	(revision 61709)
+++ parse.y	(revision 61710)
@@ -3453,7 +3453,7 @@ lambda_body	: tLAMBEG compstmt '}' https://github.com/ruby/ruby/blob/trunk/parse.y#L3453
 			token_info_pop("}");
 			$$ = $2;
 		    }
-		| keyword_do_LAMBDA compstmt k_end
+		| keyword_do_LAMBDA bodystmt k_end
 		    {
 			$$ = $2;
 		    }

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