lambda_and_threequals.rb

lambda_and_threequals.rb

>> matcher = lambda { |value| puts "value is #{value}"; value == "foo" }
=> #<Proc:0x0000000110219b28@(irb):14>
>> matcher === "foo"
=> false
>> matcher.call("foo")
value is foo
=> true
>> 

When I run it locally, under 1.9.3:

matcher = lambda { |value| puts "value is #{value}"; value == "foo" }
matcher === "foo"               # => true
matcher.call("foo")             # => true
# >> value is foo
# >> value is foo

Ah, silly me, still on 1.8.7 -- Waiting for JRuby to make 1.9 mode default (in the awesomely anticipated 1.7) and that Mountain Lion broke my ability to build 1.8.7

Thanks!

The backports gem might help you out, not sure.