Class: Rack::Utils::Context

Relationships & Source Files
Inherits:	Object
Defined in:	lib/rack/utils.rb

Overview

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.

Class Method Summary

.call(env) mod_func
.context(env, app = @app) mod_func
.initialize(app_f, app_r) mod_func
.recontext(app) mod_func
.new(app_f, app_r) constructor private

Constructor Details

.new(app_f, app_r) (private)

[ GitHub ]

# File 'lib/rack/utils.rb', line 474


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

Class Method Details

.call(env) (mod_func)

[ GitHub ]

# File 'lib/rack/utils.rb', line 479


def call(env)
  @for.context(env, @app)
end

.context(env, app = @app) (mod_func)

[ GitHub ]

# File 'lib/rack/utils.rb', line 487


def context(env, app = @app)
  recontext(app).call(env)
end

.initialize(app_f, app_r) (mod_func)

[ GitHub ]

# File 'lib/rack/utils.rb', line 474


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

.recontext(app) (mod_func)

[ GitHub ]

# File 'lib/rack/utils.rb', line 483


def recontext(app)
  self.class.new(@for, app)
end