class RuboCop::Cop::Style::CaseCorrector

Corrector to correct conditional assignment in ‘case` statements.

Public Class Methods

correct(corrector, cop, node) click to toggle source
# File lib/rubocop/cop/style/conditional_assignment.rb, line 609
def correct(corrector, cop, node)
  when_branches, else_branch = extract_tail_branches(node)

  corrector.insert_before(node, lhs(else_branch))
  correct_branches(corrector, when_branches)
  replace_branch_assignment(corrector, else_branch)

  corrector.insert_before(node.loc.end, indent(cop, lhs(else_branch)))
end
move_assignment_inside_condition(corrector, node) click to toggle source
# File lib/rubocop/cop/style/conditional_assignment.rb, line 619
def move_assignment_inside_condition(corrector, node)
  column = node.source_range.column
  *_var, condition = *node
  assignment = assignment(node)

  corrector.remove(assignment)

  extract_branches(condition).flatten.each do |branch|
    move_branch_inside_condition(corrector, branch, condition, assignment, column)
  end
end

Private Class Methods

extract_branches(case_node) click to toggle source
# File lib/rubocop/cop/style/conditional_assignment.rb, line 639
def extract_branches(case_node)
  when_branches = if case_node.case_type?
                    expand_when_branches(case_node.when_branches)
                  else
                    expand_when_branches(case_node.in_pattern_branches)
                  end

  [when_branches, case_node.else_branch]
end
extract_tail_branches(node) click to toggle source
# File lib/rubocop/cop/style/conditional_assignment.rb, line 633
def extract_tail_branches(node)
  when_branches, else_branch = extract_branches(node)
  when_branches.map! { |branch| tail(branch) }
  [when_branches, tail(else_branch)]
end
move_branch_inside_condition(corrector, branch, condition, assignment, column) click to toggle source
# File lib/rubocop/cop/style/conditional_assignment.rb, line 649
def move_branch_inside_condition(corrector, branch, condition, assignment, column)
  branch_assignment = tail(branch)
  corrector.insert_before(branch_assignment, assignment.source)

  remove_whitespace_in_branches(corrector, branch, condition, column)

  parent_keyword = branch.parent.loc.keyword
  corrector.remove_preceding(parent_keyword, parent_keyword.column - column)
end