Class: Rack::Utils::Context
- Defined in:
- lib/vendor/rack-1.5.2/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.
Instance Attribute Summary collapse
-
#app ⇒ Object
readonly
Returns the value of attribute app.
-
#for ⇒ Object
readonly
Returns the value of attribute for.
Instance Method Summary collapse
- #call(env) ⇒ Object
- #context(env, app = @app) ⇒ Object
-
#initialize(app_f, app_r) ⇒ Context
constructor
A new instance of Context.
- #recontext(app) ⇒ Object
Constructor Details
#initialize(app_f, app_r) ⇒ Context
Returns a new instance of Context.
418 419 420 421 |
# File 'lib/vendor/rack-1.5.2/lib/rack/utils.rb', line 418 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 |
Instance Attribute Details
#app ⇒ Object (readonly)
Returns the value of attribute app.
416 417 418 |
# File 'lib/vendor/rack-1.5.2/lib/rack/utils.rb', line 416 def app @app end |
#for ⇒ Object (readonly)
Returns the value of attribute for.
416 417 418 |
# File 'lib/vendor/rack-1.5.2/lib/rack/utils.rb', line 416 def for @for end |
Instance Method Details
#call(env) ⇒ Object
423 424 425 |
# File 'lib/vendor/rack-1.5.2/lib/rack/utils.rb', line 423 def call(env) @for.context(env, @app) end |
#context(env, app = @app) ⇒ Object
431 432 433 |
# File 'lib/vendor/rack-1.5.2/lib/rack/utils.rb', line 431 def context(env, app=@app) recontext(app).call(env) end |
#recontext(app) ⇒ Object
427 428 429 |
# File 'lib/vendor/rack-1.5.2/lib/rack/utils.rb', line 427 def recontext(app) self.class.new(@for, app) end |