[#109207] [Ruby master Feature#18915] New error class: NotImplementedYetError or scope change for NotImplementedYet — Quintasan <noreply@...>
Issue #18915 has been reported by Quintasan (Michał Zając).
18 messages
2022/07/14
[ruby-core:109182] [Ruby master Bug#18905] :"@=".inspect is non-evaluatable
From:
"nobu (Nobuyoshi Nakada)" <noreply@...>
Date:
2022-07-11 07:53:23 UTC
List:
ruby-core #109182
Issue #18905 has been updated by nobu (Nobuyoshi Nakada). First, `inspect` methods are not for `eval`. We only guarantee that `sym.name.to_sym == sym`. ---------------------------------------- Bug #18905: :"@=".inspect is non-evaluatable https://bugs.ruby-lang.org/issues/18905#change-98321 * Author: qnighy (Masaki Hara) * Status: Open * Priority: Normal * ruby -v: ruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [x86_64-linux] * Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN ---------------------------------------- There is an edge case where `Symbol#inspect` returns a non-evaluatable expression: ```ruby :"@=".inspect # => :@= :"[][]=".inspect # => :[][]= :"$$$$=" # => :$$$$= ``` More specifically, the quotations are stripped if the following conditions are met (but the converse does not hold): - It starts with `@`, `@@`, `$` or `[`, - the prefix is not followed by an identifier, and - it ends with `=`. But the rule should only apply to `:$=` and `:[]=`, because (in my understanding) we should generally have `eval(sym.inspect) == sym` for the programmers' convenience. -- https://bugs.ruby-lang.org/ Unsubscribe: <mailto:ruby-core-request@ruby-lang.org?subject=unsubscribe> <http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>