Bug #21153: ::Foo ||= p 1 should parse

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 3.5.0dev (2025-02-22T15:11:40Z master fd882fb681) +PRISM [x86_64-linux]
• Backport: 3.1: REQUIRED, 3.2: REQUIRED, 3.3: WONTFIX, 3.4: DONE

[qnighy (Masaki Hara)]

There is an inconsistency between how Foo and ::Foo are handled:

% ./miniruby --parser=parse.y -e "Foo ||= p 1"
1
% ./miniruby --parser=parse.y -e "::Foo ||= p 1"
-e:1: syntax error, unexpected integer literal, expecting 'do' or '{' or '('
::Foo ||= p 1
./miniruby: compile error (SyntaxError)

Note that Object::Foo also parses.

Prism successfully parses both, which is what I expect.

% ./miniruby --parser=prism -e "Foo ||= p 1"
1
% ./miniruby --parser=prism -e "::Foo ||= p 1"
1

To fix this, you should probably handle all tOP_ASGNs in the op_asgn rule.

[nobu (Nobuyoshi Nakada)]

• Status changed from Open to Closed

Applied in changeset git|21ac0a3a640a2a86e8716675f82221f178e29088.

---

[Bug #21153] Add missing op-assign to top const in command_asgn

It was defined in arg only; moved that pattern to op_asgn rule to
share it with command_asgn.

[nobu (Nobuyoshi Nakada)]

• Backport changed from 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN to 3.1: REQUIRED, 3.2: REQUIRED, 3.3: REQUIRED, 3.4: REQUIRED

[nobu (Nobuyoshi Nakada)]

The backport patch to 3.4 is https://github.com/ruby/ruby/pull/12805

[ufuk (Ufuk Kayserilioglu)]

• Backport changed from 3.1: REQUIRED, 3.2: REQUIRED, 3.3: REQUIRED, 3.4: REQUIRED to 3.1: REQUIRED, 3.2: REQUIRED, 3.3: REQUIRED, 3.4: DONE

[k0kubun (Takashi Kokubun)]

• Backport changed from 3.1: REQUIRED, 3.2: REQUIRED, 3.3: REQUIRED, 3.4: DONE to 3.1: REQUIRED, 3.2: REQUIRED, 3.3: REQUIRED, 3.4: REQUIRED

[k0kubun (Takashi Kokubun)]

• Backport changed from 3.1: REQUIRED, 3.2: REQUIRED, 3.3: REQUIRED, 3.4: REQUIRED to 3.1: REQUIRED, 3.2: REQUIRED, 3.3: REQUIRED, 3.4: DONE

ruby_3_4 8d2be590ad567b7b03286731f9a9754d24370f00.

[nagachika (Tomoyuki Chikanaga)]

• Backport changed from 3.1: REQUIRED, 3.2: REQUIRED, 3.3: REQUIRED, 3.4: DONE to 3.1: REQUIRED, 3.2: REQUIRED, 3.3: WONTFIX, 3.4: DONE