From: Bharanee Rathna <deepfryed@...>
Date: 2011-12-07T12:27:57+09:00
Subject: [ruby-core:41516] [ruby-trunk - Bug #5719] Hash::[] can't handle 100000+ args


Issue #5719 has been updated by Bharanee Rathna.


i shall give you four hints: stack, heap, push, pop

ruby's behavior is expected.

you can pass Hash::[] an array instead i think.  

Hash[[[:a, 1], [:b, 2]]] #=> {:a=>1, :b=>2}
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Bug #5719: Hash::[] can't handle 100000+ args
http://redmine.ruby-lang.org/issues/5719

Author: Nick Quaranto
Status: Open
Priority: Normal
Assignee: 
Category: 
Target version: 
ruby -v: -


I couldn't pin down an exact size for when/how this occurs, but I have code that was creating hashes just fine with Hash::[] with 300k+ arguments.

irb(main):056:0> (0...140000).map { |n| [:a, n] }.tap { |a| Hash[*a] }.size
SystemStackError: stack level too deep
	from /Users/qrush/.rbenv/versions/1.9.3-p0/lib/ruby/1.9.1/irb/workspace.rb:80
Maybe IRB bug!
irb(main):057:0> (0...130000).map { |n| [:a, n] }.tap { |a| Hash[*a] }.size
=> 130000



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