Class: Rubocop::Cop::Style::VariableInterpolation

Inherits:
Cop
  • Object
show all
Defined in:
lib/rubocop/cop/style/variable_interpolation.rb

Overview

This cop checks for variable interpolation (like "#@ivar").

Constant Summary collapse

MSG = 
'Replace interpolated var %s with expression #{%s}.'

Instance Attribute Summary

Attributes inherited from Cop

#autocorrect, #corrections, #debug, #disabled_lines, #offences

Instance Method Summary collapse

Methods inherited from Cop

#add_offence, all, #autocorrect_action, cop_name, cop_type, #do_autocorrect, #ignore_node, inherited, #initialize, lint?, #name, rails?, style?

Constructor Details

This class inherits a constructor from Rubocop::Cop::Cop

Instance Method Details

#on_dstr(node) ⇒ Object 



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# File 'lib/rubocop/cop/style/variable_interpolation.rb', line 10

def on_dstr(node)
  var_nodes(node.children).each do |v|
    var = (v.type == :nth_ref ? '$' : '') + v.to_a[0].to_s

    if node.loc.expression.source.include?("##{var}")
      add_offence(:convention,
                  v.loc.expression,
                  sprintf(MSG, var, var))
    end
  end
end