Sha256: 7c77f6b2f6fe8c61b6f1044665c608ff0e26f73044bd0d8095342d251d06abc4
Contents?: true
Size: 902 Bytes
Versions: 7
Compression:
Stored size: 902 Bytes
Contents
# instance_exec comes with >1.8.7 thankfully
if VERSION <= '1.8.6'
class Object
def metaclass
class << self; self; end
end
module InstanceExecHelper; end
include InstanceExecHelper
# instance_exec method evaluates a block of code relative to the specified object, with parameters whom come from outside the object.
def instance_exec(*args, &block)
begin
old_critical, Thread.critical = Thread.critical, true
n = 0
n += 1 while respond_to?(mname="__instance_exec#{n}")
InstanceExecHelper.module_eval{ define_method(mname, &block) }
ensure
Thread.critical = old_critical
end
begin
ret = send(mname, *args)
ensure
InstanceExecHelper.module_eval{ remove_method(mname) } rescue nil
end
ret
end
end
end
class Object
def metaclass
class << self; self; end
end
end
Version data entries
7 entries across 7 versions & 3 rubygems