Bug #15825: Fix a case where numbered parameters should not be allowed

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.7.0dev (2019-05-05 trunk 84e71e9fc1) [x86_64-openbsd]
• Backport: 2.4: DONTNEED, 2.5: DONTNEED, 2.6: DONTNEED

[jeremyevans0 (Jeremy Evans)]

Because proc{|| @1} is a syntax error, the following should
also be syntax errors:

proc { |  
| @1}

proc { |; a| @1 }

The attached patch makes both of those cases syntax errors.

[nobu (Nobuyoshi Nakada)]

Probably I might think the latter case could be allowed (and forgot to separate these cases), but it doesn't seem worth complicating.

• Status changed from Open to Closed

Applied in changeset git|b8f3be295b694964e88960c0228459b8aadd114a.

---

Fix a case where numbered parameters should not be allowed

Because proc{|| @1} is a syntax error, the following should
also be syntax errors:

proc { |
| @1}

proc { |; a| @1 }

This fixes both cases.

[Bug #15825]