[#42344] [ruby-trunk - Feature #5964][Open] Make Symbols an Alternate Syntax for Strings — Tom Wardrop <tom@...>

23 messages 2012/02/03

[#42443] [ruby-trunk - Bug #5985][Open] miniruby skews "make benchmark" results — Eric Wong <normalperson@...>

21 messages 2012/02/08

[#42444] [ruby-trunk - Bug #5986][Open] Segmentation Fault — Luis Matta <levmatta@...>

16 messages 2012/02/08

[#42471] [ruby-trunk - Feature #5995][Open] calling io_advise_internal() in read_all() — Masaki Matsushita <glass.saga@...>

20 messages 2012/02/10

[#42560] [ruby-trunk - Bug #6011][Open] ruby-1.9.3-p0/lib/webrick/utils.rb:184: [BUG] Segmentation fault — Vit Ondruch <v.ondruch@...>

12 messages 2012/02/13

[#42579] [ruby-trunk - Bug #6012][Open] Proc#source_location also return the column — Roger Pack <rogerpack2005@...>

14 messages 2012/02/14

[#42685] [ruby-trunk - Bug #6036][Open] Test failures in Fedora Rawhide/17 — Bohuslav Kabrda <bkabrda@...>

14 messages 2012/02/16

[#42697] [ruby-trunk - Bug #6040][Open] Transcoding test failure: Big5 to UTF8 not defined (MinGW) — Luis Lavena <luislavena@...>

10 messages 2012/02/16

[#42813] [ruby-trunk - Feature #6065][Open] Allow Bignum marshalling/unmarshalling from C API — Martin Bosslet <Martin.Bosslet@...>

22 messages 2012/02/23

[#42815] [ruby-trunk - Bug #6066][Open] Fix "control may reach end of non-void function" warnings for clang — Eric Hodel <[email protected]>

15 messages 2012/02/23

[#42857] [ruby-trunk - Feature #6074][Open] Allow alias arguments to have a comma — Thomas Sawyer <transfire@...>

20 messages 2012/02/24

[#42891] [ruby-trunk - Feature #6083][Open] Hide a Bignum definition — Koichi Sasada <redmine@...>

23 messages 2012/02/25

[#42906] [ruby-trunk - Bug #6085][Open] Treatment of Wrong Number of Arguments — Marc-Andre Lafortune <ruby-core@...>

14 messages 2012/02/25

[#42949] [ruby-trunk - Bug #6089][Open] Test suite fails with OpenSSL 1.0.1 — Vit Ondruch <v.ondruch@...>

13 messages 2012/02/26

[ruby-core:42693] [ruby-trunk - Bug #6039] lambda vs proc; #to_ary w/ splat bug

From: Denis de Bernardy <ddebernardy@...>
Date: 2012-02-16 19:17:27 UTC
List: ruby-core #42693
Issue #6039 has been updated by Denis de Bernardy.


Possibly related: http://bugs.ruby-lang.org/issues/5694
----------------------------------------
Bug #6039: lambda vs proc; #to_ary w/ splat bug
https://bugs.ruby-lang.org/issues/6039

Author: Denis de Bernardy
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: 1.9.3


to_ary apparently gets called in edge cases when a proc has a splat argument:


good = Class.new do
  def to_ary
    [:bad]
  end
end.new

foo = lambda { |*bar| bar.first }
foo.call(good)

foo = lambda { |bar, *baz| bar }
foo.call(good)

foo = proc { |*bar| bar.first }
foo.call(good)

foo = proc { |bar, *baz| bar }
foo.call(good)

>> RUBY_VERSION
=> "1.9.3"
>> good = Class.new do
?>   def to_ary
>>     [:bad]
>>   end
>> end.new
=> #<#<Class:0x00000100a39c50>:0x00000100a399d0>
>> 
?> foo = lambda { |*bar| bar.first }
=> #<Proc:0x00000100a1e248@(irb):324 (lambda)>
>> foo.call(good)
=> #<#<Class:0x00000100a39c50>:0x00000100a399d0>
>> 
?> foo = lambda { |bar, *baz| bar }
=> #<Proc:0x000001009deb48@(irb):327 (lambda)>
>> foo.call(good)
=> #<#<Class:0x00000100a39c50>:0x00000100a399d0>
>> 
?> foo = proc { |*bar| bar.first }
=> #<Proc:0x000001009aed80@(irb):330>
>> foo.call(good)
=> #<#<Class:0x00000100a39c50>:0x00000100a399d0>
>> 
?> foo = proc { |bar, *baz| bar }
=> #<Proc:0x000001010102a0@(irb):333>
>> foo.call(good)
=> :bad



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