Bug #11849: Heredoc regression in 2.2.4

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.2.4p230 (2015-12-16 revision 53155)
• Backport: 2.0.0: DONTNEED, 2.1: DONTNEED, 2.2: DONE

[whitequark (whitequark *)]

The following code gets rejected by 2.2.4:

{
  label:<<-DOC
Some text for a heredoc goes here
  DOC
}

However, it was valid in 2.2.3.

I think this might have been introduced in r51617 (#10653).

[whitequark (whitequark *)]

• Description updated (diff)

[nobu (Nobuyoshi Nakada)]

• Description updated (diff)
• Backport changed from 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN to 2.0.0: DONTNEED, 2.1: DONTNEED, 2.2: REQUIRED

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset r53214.

---

parse.y: labeled heredoc

• parse.y (parser_yylex): allow here documents in labeled
  argument. [ruby-core:72396] [Bug #11849]

[nagachika (Tomoyuki Chikanaga)]

• Backport changed from 2.0.0: DONTNEED, 2.1: DONTNEED, 2.2: REQUIRED to 2.0.0: DONTNEED, 2.1: DONTNEED, 2.2: DONE

Backported into ruby_2_2 branch at r53258.

Are there any concrete gems which is affected by this regression?
I want to know the severity of this issue in the real world.

[wanabe (_ wanabe)]

Ref: https://github.com/whitequark/parser/issues/231#issuecomment-165921156