Class: Nitpick::LocalVariableNitpicker

Inherits:
LocalVariableCounter show all
Defined in:
lib/nitpick/local_variable_nitpicker.rb

Instance Attribute Summary

Attributes inherited from Nitpicker

#warnings

Instance Method Summary collapse

Methods inherited from LocalVariableCounter

#call, #initialize, #process_args, #process_block_arg, #process_call, #process_iasgn, #process_lasgn, #process_lvar, #use, #uses

Methods inherited from Nitpicker

#initialize, #process_cfunc, #process_defn, #scan_for, #warn

Constructor Details

This class inherits a constructor from Nitpick::LocalVariableCounter

Instance Method Details

#nitpick! ⇒ Object 



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# File 'lib/nitpick/local_variable_nitpicker.rb', line 3

def nitpick!
  super
  
  @lvars.each do |name, details|
    next if @args.include? name
    next if details[:calls] > 0
    # The first assignment is a use
    next if details[:uses] > 1
    warn Warnings::UnusedVariable.new(name)
  end
end

#process_iter(exp) ⇒ Object 



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# File 'lib/nitpick/local_variable_nitpicker.rb', line 15

def process_iter(exp)
  call = process(exp.shift)
  assignments = process(exp.shift)
  block = process(exp.shift)
  
  scan_for [Warnings::ShadowedVariable],
      :with => [assignments]
      
  s(:iter, call, assignments, block)
end