kazu	2017-12-28 09:00:05 +0900 (Thu, 28 Dec 2017)

  New Revision: 61507

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=61507

  Log:
    Fix KeyError#{key,receiver} of Thread#fetch
    
    [ruby-core:84508] [Bug #14247]

  Modified files:
    trunk/test/ruby/test_thread.rb
    trunk/thread.c
Index: test/ruby/test_thread.rb
===================================================================
--- test/ruby/test_thread.rb	(revision 61506)
+++ test/ruby/test_thread.rb	(revision 61507)
@@ -557,7 +557,9 @@ class TestThread < Test::Unit::TestCase https://github.com/ruby/ruby/blob/trunk/test/ruby/test_thread.rb#L557
     assert_equal(3, t.fetch("qux") {x = 3})
     assert_equal(3, x)
 
-    assert_raise(KeyError) {t.fetch(:qux)}
+    e = assert_raise(KeyError) {t.fetch(:qux)}
+    assert_equal(:qux, e.key)
+    assert_equal(t, e.receiver)
   ensure
     t.kill if t
   end
Index: thread.c
===================================================================
--- thread.c	(revision 61506)
+++ thread.c	(revision 61507)
@@ -3168,7 +3168,7 @@ rb_thread_fetch(int argc, VALUE *argv, V https://github.com/ruby/ruby/blob/trunk/thread.c#L3168
 	return rb_yield(key);
     }
     else if (argc == 1) {
-	rb_raise(rb_eKeyError, "key not found: %"PRIsVALUE, key);
+	rb_key_err_raise(rb_sprintf("key not found: %+"PRIsVALUE, key), self, key);
     }
     else {
 	return argv[1];

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