Module: Rack::Mount::Mixover

Included in:
Analysis::Frequency, Route, RouteSet
Defined in:
lib/rack/mount/mixover.rb

Overview

A mixin that changes the behavior of include. Instead of modules being chained as a superclass, they are mixed into the objects metaclass. This allows mixins to be stacked ontop of the instance methods.

Defined Under Namespace

Modules: InstanceMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.extended(klass) ⇒ Object 



7
8
9
10
11
 
# File 'lib/rack/mount/mixover.rb', line 7

def self.extended(klass)
  klass.instance_eval do
    @extended_modules = []
  end
end

Instance Method Details

#extended_modules ⇒ Object 



27
28
29
 
# File 'lib/rack/mount/mixover.rb', line 27

def extended_modules
  Thread.current[extended_modules_thread_local_key] || @extended_modules
end

#include(*mod) ⇒ Object

Replaces include with a lazy version.



23
24
25
 
# File 'lib/rack/mount/mixover.rb', line 23

def include(*mod)
  extended_modules.push(*mod)
end

#new(*args, &block) ⇒ Object

:nodoc:



31
32
33
34
35
36
37
 
# File 'lib/rack/mount/mixover.rb', line 31

def new(*args, &block) #:nodoc:
  obj = allocate
  obj.extend(InstanceMethods)
  extended_modules.each { |mod| obj.extend(mod) }
  obj.send(:initialize, *args, &block)
  obj
end

#new_with_module(mod, *args, &block) ⇒ Object

Create a new class temporarily with a module.



48
49
50
51
52
53
 
# File 'lib/rack/mount/mixover.rb', line 48

def new_with_module(mod, *args, &block)
  (Thread.current[extended_modules_thread_local_key] = extended_modules.dup).push(*mod)
  new(*args, &block)
ensure
  Thread.current[extended_modules_thread_local_key] = nil
end

#new_without_module(mod, *args, &block) ⇒ Object

Create a new class without an included module.



40
41
42
43
44
45
 
# File 'lib/rack/mount/mixover.rb', line 40

def new_without_module(mod, *args, &block)
  (Thread.current[extended_modules_thread_local_key] = extended_modules.dup).delete(mod)
  new(*args, &block)
ensure
  Thread.current[extended_modules_thread_local_key] = nil
end