class RuboCop::Cop::Layout::IndentHash


}
completely: :different
and_now_for_something = {
# align_braces
})
no: :difference
and_in_a_method_call({
}
key: :value
hash = {
# consistent
})
its_like: :this
but_in_a_method_call({
}
key: :value
hash = {
# special_inside_parentheses
styles are ‘consistent’ and ‘align_braces’. Here are examples:
This default style is called ‘special_inside_parentheses’. Alternative
than the start of the line where the opening curly brace is.
Other hash literals shall have their first key indented one step more
inside the opening parenthesis.
their first key indented one step (two spaces) more than the position
same line as the opening parenthesis of the method call, shall have
parentheses, and where the opening curly brace of the hash is on the
By default, Hash literals that are arguments in a method call with
other keys’ indentations are handled by the AlignHash cop.
where the opening brace and the first key are on separate lines. The
This cops checks the indentation of the first key in a hash literal

def base_description(left_parenthesis)

Returns the description of what the correct indentation is based on. 
def base_description(left_parenthesis)
  if style == :align_braces
    'the position of the opening brace'
  elsif left_parenthesis && style == :special_inside_parentheses
    'the first position after the preceding left parenthesis'
  else
    'the start of the line where the left curly brace is'
  end
end

def brace_alignment_style 

def brace_alignment_style
  :align_braces
end

def check(hash_node, left_parenthesis) 

def check(hash_node, left_parenthesis)
  return if ignored_node?(hash_node)
  left_brace = hash_node.loc.begin
  first_pair = hash_node.pairs.first
  if first_pair
    return if first_pair.source_range.line == left_brace.line
    if separator_style?(first_pair)
      check_based_on_longest_key(hash_node.children, left_brace,
                                 left_parenthesis)
    else
      check_first(first_pair, left_brace, left_parenthesis, 0)
    end
  end
  check_right_brace(hash_node.loc.end, left_brace, left_parenthesis)
end

def check_based_on_longest_key(pairs, left_brace, left_parenthesis) 

def check_based_on_longest_key(pairs, left_brace, left_parenthesis)
  key_lengths = pairs.map do |pair|
    pair.children.first.source_range.length
  end
  check_first(pairs.first, left_brace, left_parenthesis,
              key_lengths.max - key_lengths.first)
end

def check_right_brace(right_brace, left_brace, left_parenthesis) 

def check_right_brace(right_brace, left_brace, left_parenthesis)
  # if the right brace is on the same line as the last value, accept
  return if right_brace.source_line[0...right_brace.column] =~ /\S/
  expected_column = base_column(left_brace, left_parenthesis)
  @column_delta = expected_column - right_brace.column
  return if @column_delta.zero?
  msg = if style == :align_braces
          'Indent the right brace the same as the left brace.'
        elsif style == :special_inside_parentheses && left_parenthesis
          'Indent the right brace the same as the first position ' \
          'after the preceding left parenthesis.'
        else
          'Indent the right brace the same as the start of the line ' \
          'where the left brace is.'
        end
  add_offense(right_brace, right_brace, msg)
end

def message(base_description) 

def message(base_description)
  format('Use %d spaces for indentation in a hash, relative to %s.',
         configured_indentation_width, base_description)
end

def on_hash(node) 

def on_hash(node)
  check(node, nil) if node.loc.begin
end

def on_send(node) 

def on_send(node)
  each_argument_node(node, :hash) do |hash_node, left_parenthesis|
    check(hash_node, left_parenthesis)
  end
end

def separator_style?(first_pair) 

def separator_style?(first_pair)
  separator = first_pair.loc.operator
  key = "Enforced#{separator.is?(':') ? 'Colon' : 'HashRocket'}Style"
  config.for_cop('Layout/AlignHash')[key] == 'separator'
end