Class: Fix::Subject

Inherits:
Object
  • Object
show all
Defined in:
lib/fix/subject.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(input, *args) ⇒ Subject

Returns a new instance of Subject.



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# File 'lib/fix/subject.rb', line 5

def initialize input, *args
  @input  = input
  @args   = args
  @error  = nil

  @implemented = nil

  begin
    param_id = 0
    @cache_value = params.inject(input) do |mem, param|
      param_id = param_id.next
      @implemented = mem.respond_to? param.first, false
      mem.public_send(*param)
    end
  rescue => e
    @error = {
      exception:  e,
      param_id:   param_id
    }
  end

  freeze
end

Instance Attribute Details

#error ⇒ Object (readonly)

Returns the value of attribute error.



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# File 'lib/fix/subject.rb', line 3

def error
  @error
end

Instance Method Details

#actual ⇒ Object 



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# File 'lib/fix/subject.rb', line 29

def actual
  if valid?
    @cache_value.public_send(*challenge)
  else
    raise @error.fetch :exception
  end
end

#challenge ⇒ Object 



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# File 'lib/fix/subject.rb', line 41

def challenge
  @args.last
end

#implemented? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/fix/subject.rb', line 45

def implemented?
  @implemented && valid? && @cache_value.respond_to?(challenge.first, false)
end

#params ⇒ Object 



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# File 'lib/fix/subject.rb', line 37

def params
  @args[0..-2]
end