Class: Tailor::Rulers::SpacesAfterConditionalRuler

Inherits:
Tailor::Ruler
  • Object
show all
Defined in:
lib/tailor/rulers/spaces_after_conditional_ruler.rb

Instance Attribute Summary

Attributes inherited from Tailor::Ruler

#lexer_observers

Instance Method Summary collapse

Methods inherited from Tailor::Ruler

#add_child_ruler, #problem_type, #problems

Methods included from Logger::Mixin

included

Constructor Details

#initialize(config, options) ⇒ SpacesAfterConditionalRuler

Returns a new instance of SpacesAfterConditionalRuler.



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# File 'lib/tailor/rulers/spaces_after_conditional_ruler.rb', line 7

def initialize(config, options)
  super(config, options)
  add_lexer_observers :nl
end

Instance Method Details

#measure(lexed_line, lineno) ⇒ Object

Checks to see if spacing is present after conditionals

Parameters:

  • lexed_line (Array) —

    The lexed line with a conditional

  • lineno (Fixnum) —

    Line the problem was found on.



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# File 'lib/tailor/rulers/spaces_after_conditional_ruler.rb', line 20

def measure(lexed_line, lineno)

  idx = lexed_line.index do |_, token, name|
    token == :on_kw and %w{if unless case}.include?(name)
  end

  expected_spaces = @config
  spaces = expected_spaces

  if idx
    column = lexed_line[idx].first.last
    pos, token, _ = lexed_line[idx + 1]
    spaces = case token
    when :on_lparen then 0
    when :on_sp
      next_token = lexed_line[idx + 2]
      next_token.first.last - pos.last
    end
  end

  if expected_spaces != spaces
    @problems << Problem.new(problem_type, lineno, column,
      "#{spaces} spaces after conditional at column #{column}, " +
        "expected #{expected_spaces}.", @options[:level])
  end
end

#nl_update(current_lexed_line, lineno, _) ⇒ Object 



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# File 'lib/tailor/rulers/spaces_after_conditional_ruler.rb', line 12

def nl_update(current_lexed_line, lineno, _)
  measure(current_lexed_line, lineno)
end