ãããªãã¸ã§ã¯ãOã®ã¡ã½ããAãå¼ã¶ã¨å é¨å¤æ°Xã®å¤ãå¤ããã¨ããã ã¡ã½ããAã®ç®çã¯Xã®å¤ãæ´æ°ãããã¨ã ããè¿ãå¤ããXã®å¤ãç¥ããã¨ã¯åºæ¥ãªãã ãªãã¸ã§ã¯ãOã®ä»ã®ã¡ã½ããããXã®å¤ãç´æ¥ç¥ããã¨ã¯åºæ¥ãªãã 以ä¸ã®ãããªç¶æ³ã®ã¨ããã¡ã½ããAã®ãã¹ãã£ã¦ã©ãããã°ãããã ããã¨æã£ããã ãã©ãã·ã³ãã«ã«ã¤ã³ã¹ã¿ã³ã¹å¤æ°ã«ã¢ã¯ã»ã¹ãããã¨ã«ãããã¡ã½ããAã®æ£ããæåã¯å é¨å¤æ°ã夿´ãããã¨ãªã®ã§ããã®ãã¹ãã¯ã夿°ã®å¤æ´ãæ¤ç¥ãããã¨ã ã¨æã£ãããã ã ã¨ããããã§ã³ã¼ãã¯ä»¥ä¸ã 1require 'minitest/autostart' 2O = Struct.new(:x) 3class TestO < Minitest::Test 4 def test_a 5 o = O.new 6 o.a #x => true 7 assert o.instance_variable_


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