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Class: ActionDispatch::Routing::Mapper::Constraints

Do not use. This class is for internal use only.
Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ::ActionDispatch::Routing::Endpoint
Instance Chain:
self, ::ActionDispatch::Routing::Endpoint
Inherits: ActionDispatch::Routing::Endpoint
Defined in: actionpack/lib/action_dispatch/routing/mapper.rb

Constant Summary

Class Method Summary

Instance Attribute Summary

::ActionDispatch::Routing::Endpoint - Inherited

#dispatcher?, #engine?, #redirect?

Instance Method Summary

::ActionDispatch::Routing::Endpoint - Inherited

#app, #matches?, #rack_app

Constructor Details

.new(app, constraints, strategy) ⇒ Constraints

[ GitHub ] 

  


# File 'actionpack/lib/action_dispatch/routing/mapper.rb', line 35



def initialize(app, constraints, strategy)
  # Unwrap Constraints objects. I don't actually think it's possible to pass a
  # Constraints object to this constructor, but there were multiple places that
  # kept testing children of this object. I **think** they were just being
  # defensive, but I have no idea.
  if app.is_a?(self.class)
    constraints += app.constraints
    app = app.app
  end

  @strategy = strategy

  @app, @constraints, = app, constraints
end


  







Instance Attribute Details



  

    #app   (readonly)
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/routing/mapper.rb', line 30



attr_reader :app, :constraints


  








  

    #constraints   (readonly)
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/routing/mapper.rb', line 30



attr_reader :app, :constraints


  








  

    #dispatcher?  ⇒ Boolean  (readonly)
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/routing/mapper.rb', line 50



def dispatcher?; @strategy == SERVE; end


  







Instance Method Details



  

    #constraint_args(constraint, request)   (private)
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/routing/mapper.rb', line 66



def constraint_args(constraint, request)
  arity = if constraint.respond_to?(:arity)
    constraint.arity
  else
    constraint.method(:call).arity
  end

  if arity < 1
    []
  elsif arity == 1
    [request]
  else
    [request.path_parameters, request]
  end
end


  








  

    #matches?(req)  ⇒ Boolean 
  



  

    
  





  


  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/routing/mapper.rb', line 52



def matches?(req)
  @constraints.all? do |constraint|
    (constraint.respond_to?(:matches?) && constraint.matches?(req)) ||
      (constraint.respond_to?(:call) && constraint.call(*constraint_args(constraint, req)))
  end
end


  








  

    #serve(req)  
  

  [ GitHub ]


  

  


# File 'actionpack/lib/action_dispatch/routing/mapper.rb', line 59



def serve(req)
  return [ 404, { Constants::X_CASCADE => "pass" }, [] ] unless matches?(req)

  @strategy.call @app, req
end