From 6fe9b2b79446e20e4a3a48c898313c63258182d5 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 29 Oct 2014 14:24:24 +0000
Subject: parse.y: warn iside a block

* parse.y (gettable_gen): also warn circular argument reference even
  inside a block.  [ruby-core:65990] [Bug #10314]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48189 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_syntax.rb | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

(limited to 'test')

diff --git a/test/ruby/test_syntax.rb b/test/ruby/test_syntax.rb
index 2da7797b47..55af33fe48 100644
--- a/test/ruby/test_syntax.rb
+++ b/test/ruby/test_syntax.rb
@@ -151,6 +151,26 @@ class TestSyntax < Test::Unit::TestCase
       o.instance_eval("def foo(var: var) var end")
     end
     assert_nil(o.foo, bug9593)
+
+    o = Object.new
+    assert_warn(/circular argument reference - var/) do
+      o.instance_eval("def foo(var: bar(var)) var end")
+    end
+
+    o = Object.new
+    assert_warn(/circular argument reference - var/) do
+      o.instance_eval("def foo(var: bar {var}) var end")
+    end
+
+    o = Object.new
+    assert_warn("") do
+      o.instance_eval("def foo(var: bar {|var| var}) var end")
+    end
+
+    o = Object.new
+    assert_warn("") do
+      o.instance_eval("def foo(var: def bar(var) var; end) var end")
+    end
   end
 
   def test_optional_self_reference
@@ -167,6 +187,26 @@ class TestSyntax < Test::Unit::TestCase
       o.instance_eval("def foo(var = var) var end")
     end
     assert_nil(o.foo, bug9593)
+
+    o = Object.new
+    assert_warn(/circular argument reference - var/) do
+      o.instance_eval("def foo(var = bar(var)) var end")
+    end
+
+    o = Object.new
+    assert_warn(/circular argument reference - var/) do
+      o.instance_eval("def foo(var = bar {var}) var end")
+    end
+
+    o = Object.new
+    assert_warn("") do
+      o.instance_eval("def foo(var = bar {|var| var}) var end")
+    end
+
+    o = Object.new
+    assert_warn("") do
+      o.instance_eval("def foo(var = def bar(var) var; end) var end")
+    end
   end
 
   def test_warn_grouped_expression
-- 
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