From: justin@... Date: 2019-01-02T17:48:45+00:00 Subject: [ruby-core:90860] [Ruby trunk Bug#8140] Incorrect warning: `+' after local variable is interpreted as binary operator Issue #8140 has been updated by jsc (Justin Collins). glyn (Glyn Normington) wrote: > The statement: > > puts '' +'' > > generates an invalid warning when executed with "ruby -w" which (a) implies a syntactical ambiguity where there is none, and (b) refers to a "local variable" of which there are none. The message as of ruby-1.9.3-p551 was: ~~~ $ ruby -w '' +'' -:1: warning: `+' after local variable is interpreted as binary operator -:1: warning: even though it seems like unary operator ~~~ As of 2.1.10 (at least), the message now includes "or literal" to address point (b): ~~~ $ ruby -w '' +'' -:1: warning: `+' after local variable or literal is interpreted as binary operator -:1: warning: even though it seems like unary operator ~~~ ---------------------------------------- Bug #8140: Incorrect warning: `+' after local variable is interpreted as binary operator https://bugs.ruby-lang.org/issues/8140#change-76046 * Author: glyn (Glyn Normington) * Status: Open * Priority: Normal * Assignee: matz (Yukihiro Matsumoto) * Target version: * ruby -v: ruby 1.9.3p374 (2013-01-15 revision 38858) [x86_64-darwin12.2.1] * Backport: 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN ---------------------------------------- The statement: puts '' +'' generates an invalid warning when executed with "ruby -w" which (a) implies a syntactical ambiguity where there is none, and (b) refers to a "local variable" of which there are none. Note that: puts ''+'' and: puts '' + '' produce no warnings. ---Files-------------------------------- parserbug.rb (293 Bytes) -- https://bugs.ruby-lang.org/ Unsubscribe: