Class: Hanami::Utils::Callbacks::Callback

Inherits:

Object

• Object
• Hanami::Utils::Callbacks::Callback

Defined in:

lib/hanami/utils/callbacks.rb

Overview

Proc callback It wraps an object that responds to #call

Since:

• 0.1.0

Direct Known Subclasses

MethodCallback

Instance Attribute Summary

• #callback ⇒ Object readonly

Instance Method Summary

• #call(context, *args) ⇒ void, Object

  Executes the callback within the given context and passing the given arguments.

• #initialize(callback) ⇒ Callback constructor

  Initialize by wrapping the given callback.

Constructor Details

#initialize(callback) ⇒ Callback

Initialize by wrapping the given callback

Parameters:

• callback (Object) —

  the original callback that needs to be wrapped

Since:

• 0.1.0

# File 'lib/hanami/utils/callbacks.rb', line 228

def initialize(callback)
  @callback = callback
end

Instance Attribute Details

#callback ⇒ Object (readonly)

Since:

• 0.1.0

# File 'lib/hanami/utils/callbacks.rb', line 218

def callback
  @callback
end

Instance Method Details

#call(context, *args) ⇒ void, Object

Executes the callback within the given context and passing the given arguments.

Parameters:

• context (Object) —

  the context within we want to execute the callback.

• args (Array) —

  an array of arguments that will be available within the execution.

Returns:

• (void, Object) —

  It may return a value, it depends on the callback.

See Also:

• Hanami::Utils::Callbacks::Chain#run

Since:

• 0.1.0

# File 'lib/hanami/utils/callbacks.rb', line 242

def call(context, *args)
  context.instance_exec(*args, &callback)
end