class Rack::Utils::Context

Context allows the use of a compatible middleware at different points in a request handling stack. A compatible middleware must define context which should take the arguments env and app. The first of which would be the request environment. The second of which would be the rack application that the request would be forwarded to.

Attributes

Public Class Methods

new (app_f, app_r) 
# File lib/rack/utils.rb, line 480
def initialize(app_f, app_r)
  raise 'running context does not respond to #context' unless app_f.respond_to? :context
  @for, @app = app_f, app_r
end

Public Instance Methods

call (env) 
# File lib/rack/utils.rb, line 485
def call(env)
  @for.context(env, @app)
end
context (env, app = @app) 
# File lib/rack/utils.rb, line 493
def context(env, app = @app)
  recontext(app).call(env)
end
recontext (app) 
# File lib/rack/utils.rb, line 489
def recontext(app)
  self.class.new(@for, app)
end