Class: Rack::Utils::Context
- Inherits:
-
Object
- Object
- Rack::Utils::Context
- 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.
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.
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# File 'lib/rack/utils.rb', line 272 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.
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# File 'lib/rack/utils.rb', line 270 def app @app end |
#for ⇒ Object (readonly)
Returns the value of attribute for.
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# File 'lib/rack/utils.rb', line 270 def for @for end |
Instance Method Details
#call(env) ⇒ Object
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# File 'lib/rack/utils.rb', line 277 def call(env) @for.context(env, @app) end |
#context(env, app = @app) ⇒ Object
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# File 'lib/rack/utils.rb', line 285 def context(env, app=@app) recontext(app).call(env) end |
#recontext(app) ⇒ Object
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# File 'lib/rack/utils.rb', line 281 def recontext(app) self.class.new(@for, app) end |