Class: QED::Advice::Events

Inherits:
Object
  • Object
show all
Defined in:
lib/qed/advice/events.rb

Overview

This class encapsulates advice on symbolic targets, such as Before, After and Upon.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Events

Returns a new instance of Events.



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# File 'lib/qed/advice/events.rb', line 14

def initialize
  @signals = [{}]
end

Instance Attribute Details

#signals ⇒ Object (readonly)

Returns the value of attribute signals.



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# File 'lib/qed/advice/events.rb', line 11

def signals
  @signals
end

Instance Method Details

#add(type, &procedure) ⇒ Object 



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# File 'lib/qed/advice/events.rb', line 19

def add(type, &procedure)
  @signals.last[type.to_sym] = procedure
end

#call(scope, type, *args) ⇒ Object 



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# File 'lib/qed/advice/events.rb', line 24

def call(scope, type, *args)
  
  @signals.each do |set|
    proc = set[type.to_sym]
    #proc.call(*args) if proc
    scope.instance_exec(*args, &proc) if proc
  end
end

#clear(type = nil) ⇒ Object

Clear advice.



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# File 'lib/qed/advice/events.rb', line 44

def clear(type=nil)
  if type
    @signals.each{ |set| set.delete(type.to_sym) }
  else
    @signals = [{}]
  end
end

#reset ⇒ Object

Clear last set of advice.



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# File 'lib/qed/advice/events.rb', line 34

def reset
  @signals.pop
end

#setup ⇒ Object 



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# File 'lib/qed/advice/events.rb', line 39

def setup
  @signals.push {}
end