From: headius@... Date: 2016-11-14T21:31:04+00:00 Subject: [ruby-core:78138] [Ruby trunk Bug#12938] forwardable.rb is no longer compatible with any alternative implementation Issue #12938 has been reported by Charles Nutter. ---------------------------------------- Bug #12938: forwardable.rb is no longer compatible with any alternative implementation https://bugs.ruby-lang.org/issues/12938 * Author: Charles Nutter * Status: Open * Priority: Normal * Assignee: * ruby -v: master as of today * Backport: 2.1: UNKNOWN, 2.2: UNKNOWN, 2.3: UNKNOWN ---------------------------------------- The following commits have made forwardable.rb unusable on any implementation except MRI, because they use YARV-specific RubyVM module and features. I believe all of these changes were done by nobu. These introduce uses of RubyVM::InstructionSequence, which does not (and probably will not ever) exist on other Ruby implementations: r53383: forwardable.rb: adjust backtrace by tail call r55376: forwardable.rb: optimize awy __send__ This commit moves code around, so I wasn't sure if anything incompatible was introduced. r55366: forwardable.rb: fix for non-module objects The standard library of Ruby is shared by all Ruby implementations, and I believe every effort should be made to avoid using MRI-specific features. If such features must be used, there must always be a fallback path that works on all Rubies of a given compatibility level (2.4 in this case). -- https://bugs.ruby-lang.org/ Unsubscribe: