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Bug #20092

closed

Warnings for anonymous parameters do not display in Ruby 3.4dev

Added by koic (Koichi ITO) 10 months ago. Updated 10 months ago.

Status:
Closed
Assignee:
-
Target version:
-
ruby -v:
ruby 3.4.0dev (2023-12-26T22:32:38Z master be92bf4ff4) [x86_64-darwin22]
[ruby-core:115918]

Description

I encountered no expected warnings in Ruby 3.4dev.

Reproduction code

def anonymous(*, **, &)
  rest_block do
    foo(*)
  end

  kwrest_block do
    bar(**)
  end

  block_block do
    baz(&)
  end
end

Expected Behavior (Ruby 3.3.0)

Warnings are displayed:

$ ruby -vc example.rb
ruby 3.3.0 (2023-12-25 revision 5124f9ac75) [x86_64-darwin22]
example.rb: example.rb:3: anonymous rest parameter is also used within block (SyntaxError)
example.rb:7: anonymous keyword rest parameter is also used within block
example.rb:11: anonymous block parameter is also used within block

Actual Behavior (Ruby 3.4dev)

No warning displayed:

$ ruby -vc example.rb
ruby 3.4.0dev (2023-12-26T22:32:38Z master be92bf4ff4) [x86_64-darwin22]
Syntax OK

Updated by nobu (Nobuyoshi Nakada) 10 months ago

The behavior in 3.4.0 is correct.
It was a bug #20090.

Actions #2

Updated by jeremyevans0 (Jeremy Evans) 10 months ago

  • Status changed from Open to Closed
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