From: "rubikitch ." <redmine@...>
Date: 2009-04-28T04:48:05+09:00
Subject: [ruby-dev:38349] [Bug #1415] Structがppできない

Bug #1415: Structがppできない
http://redmine.ruby-lang.org/issues/show/1415

起票者: rubikitch .
ステータス: Open, 優先度: Normal
カテゴリ: lib, Target version: 1.9.1
ruby -v: ruby 1.9.1p0 (2009-01-30 revision 21907) [i686-linux]

Ruby 1.9.1で構造体をppするとエラーになります。

require 'pp'
RUBY_VERSION                    # => "1.9.1"
struct = Struct.new(:a).new(3)  # => #<struct a=3>
pp struct
# ~> /pkgs/ruby-1.9.1-p0/lib/ruby191p0/1.9.1/pp.rb:364:in `+': can't convert nil into String (TypeError)
# ~> 	from /pkgs/ruby-1.9.1-p0/lib/ruby191p0/1.9.1/pp.rb:364:in `pretty_print'
# ~> 	from /pkgs/ruby-1.9.1-p0/lib/ruby191p0/1.9.1/pp.rb:154:in `block in pp'
# ~> 	from /pkgs/ruby-1.9.1-p0/lib/ruby191p0/1.9.1/prettyprint.rb:200:in `block (2 levels) in group'
# ~> 	from /pkgs/ruby-1.9.1-p0/lib/ruby191p0/1.9.1/prettyprint.rb:227:in `nest'
# ~> 	from /pkgs/ruby-1.9.1-p0/lib/ruby191p0/1.9.1/prettyprint.rb:200:in `block in group'
# ~> 	from /pkgs/ruby-1.9.1-p0/lib/ruby191p0/1.9.1/prettyprint.rb:212:in `group_sub'
# ~> 	from /pkgs/ruby-1.9.1-p0/lib/ruby191p0/1.9.1/prettyprint.rb:199:in `group'
# ~> 	from /pkgs/ruby-1.9.1-p0/lib/ruby191p0/1.9.1/pp.rb:154:in `pp'
# ~> 	from /pkgs/ruby-1.9.1-p0/lib/ruby191p0/1.9.1/pp.rb:77:in `block in pp'
# ~> 	from /pkgs/ruby-1.9.1-p0/lib/ruby191p0/1.9.1/pp.rb:121:in `guard_inspect_key'
# ~> 	from /pkgs/ruby-1.9.1-p0/lib/ruby191p0/1.9.1/pp.rb:77:in `pp'
# ~> 	from /pkgs/ruby-1.9.1-p0/lib/ruby191p0/1.9.1/pp.rb:59:in `block in pp'
# ~> 	from /pkgs/ruby-1.9.1-p0/lib/ruby191p0/1.9.1/pp.rb:59:in `each'
# ~> 	from /pkgs/ruby-1.9.1-p0/lib/ruby191p0/1.9.1/pp.rb:59:in `pp'
# ~> 	from -:4:in `<main>'


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