Class: Roodi::Checks::ParameterNumberCheck

Inherits:
Check
  • Object
show all
Defined in:
lib/roodi/checks/parameter_number_check.rb

Constant Summary collapse

DEFAULT_PARAMETER_COUNT = 
3

Instance Method Summary collapse

Methods inherited from Check

#add_error, #errors, #evaluate_node_at_line, #position

Constructor Details

#initialize(options = {}) ⇒ ParameterNumberCheck

Returns a new instance of ParameterNumberCheck.



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# File 'lib/roodi/checks/parameter_number_check.rb', line 11

def initialize(options = {})
  super()
  @parameter_count = options['parameter_count'] || DEFAULT_PARAMETER_COUNT
end

Instance Method Details

#evaluate(node) ⇒ Object 



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# File 'lib/roodi/checks/parameter_number_check.rb', line 20

def evaluate(node)
  method_name = node[1]
  arguments = node[2][1][1]
  parameter_count = arguments.inject(-1) { |count, each| count = count + (each.class == Symbol ? 1 : 0) }
  add_error({ :method => method_name, :parameters => parameter_count }) unless parameter_count <= @parameter_count
end

#interesting_nodes ⇒ Object 



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# File 'lib/roodi/checks/parameter_number_check.rb', line 16

def interesting_nodes
  [:defn]
end