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Bug #13598
closedmutex_m: Missing info in the doc
Status:
Closed
Assignee:
-
Target version:
-
ruby -v:
ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-linux]
Description
The doc for Mutex_m should remind the user of the necessity of calling super() in each class that includes Mutex_m.
The average user will do:
require 'mutex_m'
class A
include Mutex_m
def initialize myval
@myval = myval
# error: no super()
end
def method
@myval
end
end
a = A.new 'abc'
a.mu_synchronize{a.method}
He will get:
NoMethodError: undefined method `synchronize' for nil:NilClass
from /usr/lib64/ruby/2.4.0/mutex_m.rb:74:in `mu_synchronize'
and will lose the rest of the evening trying to understand what went wrong ;-)
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