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Class: RuboCop::Cop::Style::TernaryCorrector

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain:
self, ConditionalCorrectorHelper, ConditionalAssignmentHelper
Inherits: Object
Defined in: lib/rubocop/cop/style/conditional_assignment.rb

Overview

Corrector to correct conditional assignment in ternary conditions.

Class Method Summary

ConditionalCorrectorHelper - Extended

assignment, correct_branches, correct_if_branches, remove_whitespace_in_branches, replace_branch_assignment, white_space_range

ConditionalAssignmentHelper - Extended

end_with_eq?,
expand_elses

elsif branches show up in the node as an else.
expand_when_branches

when nodes contain the entire branch including the condition.
indent, lhs, tail, assignment_rhs_exist?, expand_elsif, lhs_for_casgn, lhs_for_send, setter_method?

Class Method Details

.correct(corrector, node)

[ GitHub ] 

  


# File 'lib/rubocop/cop/style/conditional_assignment.rb', line 503



def correct(corrector, node)
  corrector.replace(node, correction(node))
end


  








  

    .correction(node)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/style/conditional_assignment.rb', line 521



def correction(node)
  "#{lhs(node.if_branch)}#{ternary(node)}"
end


  








  

    .element_assignment?(node)  ⇒ Boolean  (private)
  



  

    
  





  


  [ GitHub ]


  

  


# File 'lib/rubocop/cop/style/conditional_assignment.rb', line 534



def element_assignment?(node)
  node.send_type? && !node.method?(:[]=)
end


  








  

    .extract_branches(node)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/style/conditional_assignment.rb', line 538



def extract_branches(node)
  rhs = node.send_type? ? node.last_argument : node.expression
  condition = rhs.children.first if rhs.begin_type? && rhs.children.one?
  _condition, if_branch, else_branch = *(condition || rhs)

  [if_branch, else_branch]
end


  








  

    .move_assignment_inside_condition(corrector, node)  
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/style/conditional_assignment.rb', line 507



def move_assignment_inside_condition(corrector, node)
  rhs = node.send_type? ? node.last_argument : node.expression
  if_branch, else_branch = extract_branches(node)
  assignment = assignment(node)

  remove_parentheses(corrector, rhs) if Util.parentheses?(rhs)
  corrector.remove(assignment)

  move_branch_inside_condition(corrector, if_branch, assignment)
  move_branch_inside_condition(corrector, else_branch, assignment)
end


  








  

    .move_branch_inside_condition(corrector, branch, assignment)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/style/conditional_assignment.rb', line 551



def move_branch_inside_condition(corrector, branch, assignment)
  corrector.insert_before(branch, assignment.source)
end


  








  

    .remove_parentheses(corrector, node)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/style/conditional_assignment.rb', line 546



def remove_parentheses(corrector, node)
  corrector.remove(node.loc.begin)
  corrector.remove(node.loc.end)
end


  








  

    .ternary(node)   (private)
  

  [ GitHub ]


  

  


# File 'lib/rubocop/cop/style/conditional_assignment.rb', line 525



def ternary(node)
  _variable, *_operator, if_rhs = *node.if_branch
  _else_variable, *_operator, else_rhs = *node.else_branch

  expr = "#{node.condition.source} ? #{if_rhs.source} : #{else_rhs.source}"

  element_assignment?(node.if_branch) ? "(#{expr})" : expr
end