Class: Calculi::Caller

Inherits:
Object
  • Object
show all
Defined in:
lib/calculi/caller.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(originator, context) ⇒ Caller

Returns a new instance of Caller.



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# File 'lib/calculi/caller.rb', line 13

def initialize(originator, context)
  @originator = originator
  @context    = context
end

Instance Attribute Details

#context ⇒ Object (readonly)

Returns the value of attribute context.



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# File 'lib/calculi/caller.rb', line 8

def context
  @context
end

#originator ⇒ Object (readonly)

Returns the value of attribute originator.



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# File 'lib/calculi/caller.rb', line 4

def originator
  @originator
end

Instance Method Details

#call(other_function_key, *args) ⇒ Object Also known as: [] 



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# File 'lib/calculi/caller.rb', line 18

def call(other_function_key, *args)
  prevent_recursion! other_function_key

  fetch(other_function_key).call(context, *args)
end

#chain(*other_functions) ⇒ Object 



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# File 'lib/calculi/caller.rb', line 26

def chain(*other_functions)
  other_functions.reduce(context) do |last_context, other_function_key|
    other_fn = fetch(other_function_key)

    other_fn.call last_context
  end
end