Issue #21006 has been updated by tompng (tomoya ishida). https://github.com/ruby/ruby/pull/12518 ---------------------------------------- Bug #21006: `defined?((receiver).method)` raises Stack consistency error https://bugs.ruby-lang.org/issues/21006#change-111300 * Author: tompng (tomoya ishida) * Status: Open * ruby -v: ruby 3.4.1 (2024-12-25 revision 48d4efcb85) +YJIT +MN +PRISM [arm64-darwin22] * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN ---------------------------------------- ~~~ $ ruby -ve "defined?((foo).bar)" ruby 3.4.1 (2024-12-25 revision 48d4efcb85) +YJIT +MN +PRISM [arm64-darwin22] -e:1: warning: possibly useless use of defined? in void context -e:1: [BUG] Stack consistency error (sp: 7, bp: 6) ~~~ -- https://bugs.ruby-lang.org/