Bug #15823: ARGF.lineno behavior and documentation disagree

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-linux-gnu]
• Backport: 2.4: REQUIRED, 2.5: DONE, 2.6: DONE

[plujon (Jon Wilkes)]

The documentation for ARGF.each at http://ruby-doc.org/core-2.6.3/ARGF.html#method-i-each
describes ARGF.lineno as if it behaved like ARGF.file.lineno, when it behaves for me like $.

Here's the sample code from the documentation:

ARGF.each_line do |line|
  puts ARGF.filename if ARGF.lineno == 1
  puts "#{ARGF.lineno}: #{line}"
end

A shell one-liner demonstration:

for i in a b; do echo $i>$i; done; ruby -e 'ARGF.each_line do print " #{ARGF.filename} #{ARGF.lineno}"; end; puts' a b
 a 1 b 2

The documents indicate that should be a 1 b 1'

Are the documents correct or the implementation?

[nobu (Nobuyoshi Nakada)]

• Backport changed from 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN to 2.4: REQUIRED, 2.5: REQUIRED, 2.6: REQUIRED

Thank you, that document is wrong.

[nobu (Nobuyoshi Nakada)]

• Description updated (diff)

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset git|374c8f4ebab1a740990330c732b9de965c5e8d10.

---

Fixed about ARGF.lineno

[Bug #15823]

[nagachika (Tomoyuki Chikanaga)]

• Backport changed from 2.4: REQUIRED, 2.5: REQUIRED, 2.6: REQUIRED to 2.4: REQUIRED, 2.5: REQUIRED, 2.6: DONE

ruby_2_6 r67719 merged revision(s) 374c8f4ebab1a740990330c732b9de965c5e8d10.

[usa (Usaku NAKAMURA)]

• Backport changed from 2.4: REQUIRED, 2.5: REQUIRED, 2.6: DONE to 2.4: REQUIRED, 2.5: DONE, 2.6: DONE

ruby_2_5 r67722 merged revision(s) 374c8f4ebab1a740990330c732b9de965c5e8d10.