Issue #8928 has been reported by kachick (Kenichi Kamiya). ---------------------------------------- Bug #8928: instance_variable_defined?, instance_variable_get, instance_variable_set へ インスタンス変数名として `@`, :`@` を渡した時の挙動が、2.0以降で異なる。 https://bugs.ruby-lang.org/issues/8928 Author: kachick (Kenichi Kamiya) Status: Open Priority: Low Assignee: Category: Target version: ruby -v: ruby 2.1.0dev (2013-09-19 trunk 42975) [x86_64-linux] Backport: 1.9.3: UNKNOWN, 2.0.0: UNKNOWN 期待した結果 ----------- 次のいずれかになることを期待しました。 * @をインスタンス変数名として利用することが禁じられているのであれば、 Stringで渡してもSymbolで渡しても例外が発生する。 * そうでなければ、1.8.7~1.9.3と同じ値を返す。 実際の結果 --------- ruby 1.8.7 (2013-06-27 patchlevel 374) [x86_64-linux] ruby 1.9.3p429 (2013-05-15 revision 40747) [x86_64-linux] ruby -e "p Object.new.instance_variable_defined?(:'@')" # => false ruby -e "p Object.new.instance_variable_defined?('@')" # => false ruby -e "p Object.new.instance_variable_get(:'@')" # => nil ruby -e "p Object.new.instance_variable_get('@')" # => nil ruby -e "p Object.new.instance_variable_set(:'@', nil)" # => nil ruby -e "p Object.new.instance_variable_set('@', nil)" # => nil --- ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-linux] ruby -e "p Object.new.instance_variable_defined?(:'@')" # => false ruby -e "p Object.new.instance_variable_defined?('@')" # => `instance_variable_defined?': `@' is not allowed as an instance variable name (NameError) ruby -e "p Object.new.instance_variable_get(:'@')" # => nil ruby -e "p Object.new.instance_variable_get('@')" # => `instance_variable_get': `@' is not allowed as an instance variable name (NameError) ruby -e "p Object.new.instance_variable_set(:'@', nil)" # => nil ruby -e "p Object.new.instance_variable_set('@', nil)" # => nil --- ruby 2.1.0dev (2013-09-19 trunk 42975) [x86_64-linux] ruby -e "p Object.new.instance_variable_defined?(:'@')" # => false ruby -e "p Object.new.instance_variable_defined?('@')" # => `instance_variable_defined?': `@' is not allowed as an instance variable name (NameError) ruby -e "p Object.new.instance_variable_get(:'@')" # => nil ruby -e "p Object.new.instance_variable_get('@')" # => `instance_variable_get': `@' is not allowed as an instance variable name (NameError) ruby -e "p Object.new.instance_variable_set(:'@', nil)" # => nil ruby -e "p Object.new.instance_variable_set('@', nil)" # => `instance_variable_set': `@' is not allowed as an instance variable name (NameError)
[ruby-trunk - Bug #8928][Open] instance variable defined?, instance variable get, instance_variable_
Issue #8928 has been updated by nobu (Nobuyoshi Nakada). Backport changed from 1.9.3: UNKNOWN, 2.0.0: UNKNOWN to 1.9.3: DONTNEED, 2.0.0: REQUIRED ---------------------------------------- Bug #8928: instance_variable_defined?, instance_variable_get, instance_variable_set へ インスタンス変数名として `@`, :`@` を渡した時の挙動が、2.0以降で異なる。 https://bugs.ruby-lang.org/issues/8928#change-41902 Author: kachick (Kenichi Kamiya) Status: Closed Priority: Low Assignee: Category: Target version: ruby -v: ruby 2.1.0dev (2013-09-19 trunk 42975) [x86_64-linux] Backport: 1.9.3: DONTNEED, 2.0.0: REQUIRED 期待した結果 ----------- 次のいずれかになることを期待しました。 * @をインスタンス変数名として利用することが禁じられているのであれば、 Stringで渡してもSymbolで渡しても例外が発生する。 * そうでなければ、1.8.7~1.9.3と同じ値を返す。 実際の結果 --------- ruby 1.8.7 (2013-06-27 patchlevel 374) [x86_64-linux] ruby 1.9.3p429 (2013-05-15 revision 40747) [x86_64-linux] ruby -e "p Object.new.instance_variable_defined?(:'@')" # => false ruby -e "p Object.new.instance_variable_defined?('@')" # => false ruby -e "p Object.new.instance_variable_get(:'@')" # => nil ruby -e "p Object.new.instance_variable_get('@')" # => nil ruby -e "p Object.new.instance_variable_set(:'@', nil)" # => nil ruby -e "p Object.new.instance_variable_set('@', nil)" # => nil --- ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-linux] ruby -e "p Object.new.instance_variable_defined?(:'@')" # => false ruby -e "p Object.new.instance_variable_defined?('@')" # => `instance_variable_defined?': `@' is not allowed as an instance variable name (NameError) ruby -e "p Object.new.instance_variable_get(:'@')" # => nil ruby -e "p Object.new.instance_variable_get('@')" # => `instance_variable_get': `@' is not allowed as an instance variable name (NameError) ruby -e "p Object.new.instance_variable_set(:'@', nil)" # => nil ruby -e "p Object.new.instance_variable_set('@', nil)" # => nil --- ruby 2.1.0dev (2013-09-19 trunk 42975) [x86_64-linux] ruby -e "p Object.new.instance_variable_defined?(:'@')" # => false ruby -e "p Object.new.instance_variable_defined?('@')" # => `instance_variable_defined?': `@' is not allowed as an instance variable name (NameError) ruby -e "p Object.new.instance_variable_get(:'@')" # => nil ruby -e "p Object.new.instance_variable_get('@')" # => `instance_variable_get': `@' is not allowed as an instance variable name (NameError) ruby -e "p Object.new.instance_variable_set(:'@', nil)" # => nil ruby -e "p Object.new.instance_variable_set('@', nil)" # => `instance_variable_set': `@' is not allowed as an instance variable name (NameError)
Issue #8928 has been updated by kachick (Kenichi Kamiya). これらの例全て、ruby 2.1.0dev (2013-09-20 trunk 42988) [x86_64-linux] だと NameErrorが発生することを確認しました。 ありがとうございます！ ---------------------------------------- Bug #8928: instance_variable_defined?, instance_variable_get, instance_variable_set へ インスタンス変数名として `@`, :`@` を渡した時の挙動が、2.0以降で異なる。 https://bugs.ruby-lang.org/issues/8928#change-41908 Author: kachick (Kenichi Kamiya) Status: Closed Priority: Low Assignee: Category: Target version: ruby -v: ruby 2.1.0dev (2013-09-19 trunk 42975) [x86_64-linux] Backport: 1.9.3: DONTNEED, 2.0.0: REQUIRED 期待した結果 ----------- 次のいずれかになることを期待しました。 * @をインスタンス変数名として利用することが禁じられているのであれば、 Stringで渡してもSymbolで渡しても例外が発生する。 * そうでなければ、1.8.7~1.9.3と同じ値を返す。 実際の結果 --------- ruby 1.8.7 (2013-06-27 patchlevel 374) [x86_64-linux] ruby 1.9.3p429 (2013-05-15 revision 40747) [x86_64-linux] ruby -e "p Object.new.instance_variable_defined?(:'@')" # => false ruby -e "p Object.new.instance_variable_defined?('@')" # => false ruby -e "p Object.new.instance_variable_get(:'@')" # => nil ruby -e "p Object.new.instance_variable_get('@')" # => nil ruby -e "p Object.new.instance_variable_set(:'@', nil)" # => nil ruby -e "p Object.new.instance_variable_set('@', nil)" # => nil --- ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-linux] ruby -e "p Object.new.instance_variable_defined?(:'@')" # => false ruby -e "p Object.new.instance_variable_defined?('@')" # => `instance_variable_defined?': `@' is not allowed as an instance variable name (NameError) ruby -e "p Object.new.instance_variable_get(:'@')" # => nil ruby -e "p Object.new.instance_variable_get('@')" # => `instance_variable_get': `@' is not allowed as an instance variable name (NameError) ruby -e "p Object.new.instance_variable_set(:'@', nil)" # => nil ruby -e "p Object.new.instance_variable_set('@', nil)" # => nil --- ruby 2.1.0dev (2013-09-19 trunk 42975) [x86_64-linux] ruby -e "p Object.new.instance_variable_defined?(:'@')" # => false ruby -e "p Object.new.instance_variable_defined?('@')" # => `instance_variable_defined?': `@' is not allowed as an instance variable name (NameError) ruby -e "p Object.new.instance_variable_get(:'@')" # => nil ruby -e "p Object.new.instance_variable_get('@')" # => `instance_variable_get': `@' is not allowed as an instance variable name (NameError) ruby -e "p Object.new.instance_variable_set(:'@', nil)" # => nil ruby -e "p Object.new.instance_variable_set('@', nil)" # => `instance_variable_set': `@' is not allowed as an instance variable name (NameError)
[Backport200 - Backport #8928] [Closed] instance_variable_defined?, instance_variable_get, inc3RhbmN
unknown (Guest)
on 2014-02-05 15:52
Issue #8928 has been updated by Tomoyuki Chikanaga.
Status changed from Assigned to Closed
Applied in changeset r44845.
----------
merge revision(s) r42988: [Backport #8928]
* parse.y (intern_str): sigil only names are junk, at least one
identifier character is needed. [ruby-dev:47723] [Bug #8928]
* parse.y (rb_enc_symname_type): fix out of bound access.
----------------------------------------
Backport #8928: instance_variable_defined?, instance_variable_get,
instance_variable_set へ インスタンス変数名として `@`, :`@` を渡した時の挙動が、2.0以降で異なる。
https://bugs.ruby-lang.org/issues/8928#change-44973
* Author: Kenichi Kamiya
* Status: Closed
* Priority: Low
* Assignee: Tomoyuki Chikanaga
* Category:
* Target version:
* ruby -v:
----------------------------------------
期待した結果
-----------
次のいずれかになることを期待しました。
* @をインスタンス変数名として利用することが禁じられているのであれば、
Stringで渡してもSymbolで渡しても例外が発生する。
* そうでなければ、1.8.7~1.9.3と同じ値を返す。
実際の結果
---------
ruby 1.8.7 (2013-06-27 patchlevel 374) [x86_64-linux]
ruby 1.9.3p429 (2013-05-15 revision 40747) [x86_64-linux]
ruby -e "p Object.new.instance_variable_defined?(:'@')" # => false
ruby -e "p Object.new.instance_variable_defined?('@')" # => false
ruby -e "p Object.new.instance_variable_get(:'@')" # => nil
ruby -e "p Object.new.instance_variable_get('@')" # => nil
ruby -e "p Object.new.instance_variable_set(:'@', nil)" # => nil
ruby -e "p Object.new.instance_variable_set('@', nil)" # => nil
---
ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-linux]
ruby -e "p Object.new.instance_variable_defined?(:'@')" # => false
ruby -e "p Object.new.instance_variable_defined?('@')" # =>
`instance_variable_defined?': `@' is not allowed as an instance variable
name (NameError)
ruby -e "p Object.new.instance_variable_get(:'@')" # => nil
ruby -e "p Object.new.instance_variable_get('@')" # =>
`instance_variable_get': `@' is not allowed as an instance variable name
(NameError)
ruby -e "p Object.new.instance_variable_set(:'@', nil)" # => nil
ruby -e "p Object.new.instance_variable_set('@', nil)" # => nil
---
ruby 2.1.0dev (2013-09-19 trunk 42975) [x86_64-linux]
ruby -e "p Object.new.instance_variable_defined?(:'@')" # => false
ruby -e "p Object.new.instance_variable_defined?('@')" # =>
`instance_variable_defined?': `@' is not allowed as an instance variable
name (NameError)
ruby -e "p Object.new.instance_variable_get(:'@')" # => nil
ruby -e "p Object.new.instance_variable_get('@')" # =>
`instance_variable_get': `@' is not allowed as an instance variable name
(NameError)
ruby -e "p Object.new.instance_variable_set(:'@', nil)" # => nil
ruby -e "p Object.new.instance_variable_set('@', nil)" # =>
`instance_variable_set': `@' is not allowed as an instance variable name
(NameError)
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