class RuboCop::Cop::Layout::EndAlignment

end
if true
variable =
end)
puts(if true
end
variable = if true
# good
end)
puts(if true
end
variable = if true
# bad
@example EnforcedStyleAlignWith: start_of_line
end
if true
variable =
end
variable = if true
# good
end
variable = if true
# bad
@example EnforcedStyleAlignWith: variable
end
if true
variable =
end
variable = if true
# good
end
variable = if true
# bad
@example EnforcedStyleAlignWith: keyword (default)
start of the line where the matching keyword appears.
If it’s set to ‘start_of_line`, the `end` shall be aligned with the
left-hand-side of the variable assignment, if there is one.
If it’s set to ‘variable` the `end` shall be aligned with the
shall be aligned with the start of the keyword (if, class, etc.).
If it’s set to ‘keyword` (which is the default), the `end`
configuration parameter:
Three modes are supported through the `EnforcedStyleAlignWith`
This cop checks whether the end keywords are aligned properly.

def alignment_node(node)

def alignment_node(node)
  if style == :keyword
    node
  elsif style == :variable
    alignment_node_for_variable_style(node)
  else
    start_line_range(node)
  end
end

def alignment_node_for_variable_style(node)

def alignment_node_for_variable_style(node)
  return node.parent if node.case_type? && node.argument?
  assignment = node.ancestors.find(&:assignment?)
  if assignment && !line_break_before_keyword?(assignment.source_range,
                                               node)
    assignment
  else
    # Fall back to 'keyword' style if this node is not on the RHS of an
    # assignment, or if it is but there's a line break between LHS and
    # RHS.
    node
  end
end

def asgn_variable_align_with(outer_node, inner_node)

def asgn_variable_align_with(outer_node, inner_node)
  expr = outer_node.source_range
  if !line_break_before_keyword?(expr, inner_node)
    range_between(expr.begin_pos, inner_node.loc.keyword.end_pos)
  else
    inner_node.loc.keyword
  end
end

def autocorrect(node)

def autocorrect(node)
  AlignmentCorrector.align_end(processed_source,
                               node,
                               alignment_node(node))
end

def check_asgn_alignment(outer_node, inner_node)

def check_asgn_alignment(outer_node, inner_node)
  align_with = {
    keyword: inner_node.loc.keyword,
    start_of_line: start_line_range(inner_node),
    variable: asgn_variable_align_with(outer_node, inner_node)
  }
  check_end_kw_alignment(inner_node, align_with)
  ignore_node(inner_node)
end

def check_assignment(node, rhs)

def check_assignment(node, rhs)
  # If there are method calls chained to the right hand side of the
  # assignment, we let rhs be the receiver of those method calls before
  # we check if it's an if/unless/while/until.
  return unless (rhs = first_part_of_call_chain(rhs))
  return unless CONDITIONAL_NODES.include?(rhs.type)
  return if rhs.if_type? && rhs.ternary?
  check_asgn_alignment(node, rhs)
end

def check_other_alignment(node)

def check_other_alignment(node)
  align_with = {
    keyword: node.loc.keyword,
    variable: node.loc.keyword,
    start_of_line: start_line_range(node)
  }
  check_end_kw_alignment(node, align_with)
end

def on_case(node)

def on_case(node)
  if node.argument?
    check_asgn_alignment(node.parent, node)
  else
    check_other_alignment(node)
  end
end

def on_class(node)

def on_class(node)
  check_other_alignment(node)
end

def on_if(node)

def on_if(node)
  check_other_alignment(node) unless node.ternary?
end

def on_module(node)

def on_module(node)
  check_other_alignment(node)
end

def on_until(node)

def on_until(node)
  check_other_alignment(node)
end

def on_while(node)

def on_while(node)
  check_other_alignment(node)
end

def start_line_range(node)

def start_line_range(node)
  expr   = node.source_range
  buffer = expr.source_buffer
  source = buffer.source_line(expr.line)
  range  = buffer.line_range(expr.line)
  range_between(range.begin_pos + (source =~ /\S/),
                range.begin_pos + (source =~ /\s*\z/))
end