Bug #7543: DL::Function#bound? and unbind raise error when Fiddle is available

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: -

[ngoto (Naohisa Goto)]

When Fiddle is available, DL::Function#unbind raises error.

require 'dl'
require 'dl/func'
include DL
f = Function.new(CFunc.new(0, TYPE_INT, 'test'), [TYPE_INT, TYPE_INT])
f.bind { |x,y| x + y }
f.unbind

The above code raises the following error in "f.unbind".
/XXXX/lib/ruby/2.0.0/dl/func.rb:160:in unbind': undefined method ptr' for #<#Class:0x007f8e8f29ae08:0x007f8e8f29ad40> (NoMethodError)
from -:6:in `'

When Fiddle is available, DL::Function#bound? also raises error.

require 'dl'
require 'dl/func'
include DL
f = Function.new(CFunc.new(0, TYPE_INT, 'test'), [TYPE_INT, TYPE_INT])
f.bind { |x,y| x + y }
f.bound?

The above code raises the following error in "f.bound?".
/XXXX/lib/ruby/2.0.0/dl/func.rb:174:in bound?': undefined method ptr' for #<#Class:0x007f6708842d78:0x007f6708842cb0> (NoMethodError)
from -:6:in `'

[ngoto (Naohisa Goto)]

• Subject changed from DL::Function#bound? and unbound raise error when Fiddle is available to DL::Function#bound? and unbind raise error when Fiddle is available

[ngoto (Naohisa Goto)]

• Status changed from Open to Closed
• % Done changed from 0 to 100

This issue was solved with changeset r38324.
Naohisa, thank you for reporting this issue.
Your contribution to Ruby is greatly appreciated.
May Ruby be with you.

---

• ext/dl/lib/dl/func.rb (DL::Function#unbind, #bound?): suppress NoMethodError when Fiddle is available. [ruby-core:50756] [Bug #7543]
• test/dl/test_func.rb (test_bound*, test_unbind*): tests for the above.