Class: ActionDispatch::MiddlewareStack

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/action_dispatch/middleware/stack.rb

Direct Known Subclasses

ActionController::MiddlewareStack

Defined Under Namespace

Classes: InstrumentationProxy, Middleware

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(*args) {|_self| ... } ⇒ MiddlewareStack

Returns a new instance of MiddlewareStack.

Yields:

  • (_self)

Yield Parameters:



70
71
72
73
# File 'lib/action_dispatch/middleware/stack.rb', line 70

def initialize(*args)
  @middlewares = []
  yield(self) if block_given?
end

Instance Attribute Details

#middlewaresObject

Returns the value of attribute middlewares.



68
69
70
# File 'lib/action_dispatch/middleware/stack.rb', line 68

def middlewares
  @middlewares
end

Instance Method Details

#[](i) ⇒ Object



87
88
89
# File 'lib/action_dispatch/middleware/stack.rb', line 87

def [](i)
  middlewares[i]
end

#build(app = nil, &block) ⇒ Object



130
131
132
133
134
135
136
137
138
139
# File 'lib/action_dispatch/middleware/stack.rb', line 130

def build(app = nil, &block)
  instrumenting = ActiveSupport::Notifications.notifier.listening?(InstrumentationProxy::EVENT_NAME)
  middlewares.freeze.reverse.inject(app || block) do |a, e|
    if instrumenting
      e.build_instrumented(a)
    else
      e.build(a)
    end
  end
end

#delete(target) ⇒ Object



121
122
123
# File 'lib/action_dispatch/middleware/stack.rb', line 121

def delete(target)
  middlewares.delete_if { |m| m.klass == target }
end

#eachObject



75
76
77
# File 'lib/action_dispatch/middleware/stack.rb', line 75

def each
  @middlewares.each { |x| yield x }
end

#initialize_copy(other) ⇒ Object



96
97
98
# File 'lib/action_dispatch/middleware/stack.rb', line 96

def initialize_copy(other)
  self.middlewares = other.middlewares.dup
end

#insert(index, klass, *args, &block) ⇒ Object Also known as: insert_before



100
101
102
103
# File 'lib/action_dispatch/middleware/stack.rb', line 100

def insert(index, klass, *args, &block)
  index = assert_index(index, :before)
  middlewares.insert(index, build_middleware(klass, args, block))
end

#insert_after(index, *args, &block) ⇒ Object



108
109
110
111
# File 'lib/action_dispatch/middleware/stack.rb', line 108

def insert_after(index, *args, &block)
  index = assert_index(index, :after)
  insert(index + 1, *args, &block)
end

#lastObject



83
84
85
# File 'lib/action_dispatch/middleware/stack.rb', line 83

def last
  middlewares.last
end

#sizeObject



79
80
81
# File 'lib/action_dispatch/middleware/stack.rb', line 79

def size
  middlewares.size
end

#swap(target, *args, &block) ⇒ Object



114
115
116
117
118
# File 'lib/action_dispatch/middleware/stack.rb', line 114

def swap(target, *args, &block)
  index = assert_index(target, :before)
  insert(index, *args, &block)
  middlewares.delete_at(index + 1)
end

#unshift(klass, *args, &block) ⇒ Object



91
92
93
# File 'lib/action_dispatch/middleware/stack.rb', line 91

def unshift(klass, *args, &block)
  middlewares.unshift(build_middleware(klass, args, block))
end

#use(klass, *args, &block) ⇒ Object



125
126
127
# File 'lib/action_dispatch/middleware/stack.rb', line 125

def use(klass, *args, &block)
  middlewares.push(build_middleware(klass, args, block))
end