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Bug #17858

closed

Trailing comma after a `&block` parameter cause a syntax error

Bug #17858: Trailing comma after a `&block` parameter cause a syntax error

Added by byroot (Jean Boussier) about 5 years ago. Updated about 5 years ago.

Status:
Closed
Assignee:
-
Target version:
-
ruby -v:
Backport:
2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN
[ruby-core:103797]

Description

Something I just noticed:

some_long_method(
  1,
  &block, # syntax error, unexpected ',', expecting ')'
)

Which seems inconsistent to me as it works for regular parameters:

some_long_method(
  1,
  2,
)

I'm not sure if this is an intended limitation or just an oversight.

Related issues 1 (0 open — 1 closed)

Related to Ruby - Feature #19107: Allow trailing comma in method signatureClosedcoreActions

Updated by matz (Yukihiro Matsumoto) about 5 years ago Actions
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 #1 [ruby-core:103798]

  • Status changed from Open to Closed

It is intended. &block argument must come at the end of arguments. Nothing comes after.

Matz.

Updated by byroot (Jean Boussier) over 3 years ago Actions
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 #2

  • Related to Feature #19107: Allow trailing comma in method signature added
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