Class: RuboCop::Cop::Style::InitialIndentation

Inherits:
Cop
  • Object
show all
Defined in:
lib/rubocop/cop/style/initial_indentation.rb

Overview

This cops checks for indentation of the first non-blank non-comment line in a file.

Constant Summary collapse

MSG =
'Indentation of first line in file detected.'

Constants included from Util

Util::ASGN_NODES, Util::BASIC_LITERALS, Util::EQUALS_ASGN_NODES, Util::LITERALS, Util::OPERATOR_METHODS, Util::PROC_NEW_NODE, Util::SHORTHAND_ASGN_NODES

Instance Attribute Summary

Attributes inherited from Cop

#config, #corrections, #offenses, #processed_source

Instance Method Summary collapse

Methods inherited from Cop

#add_offense, all, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, cop_name, #cop_name, cop_type, #correct, #debug?, #details, #display_cop_names?, #display_style_guide?, #excluded_file?, #extra_details?, inherited, #initialize, #join_force?, lint?, match?, #message, non_rails, qualified_cop_name, rails?, #reference_url, #relevant_file?, #style_guide_url

Methods included from NodePattern::Macros

#def_node_matcher, #def_node_search

Methods included from AutocorrectLogic

#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #support_autocorrect?

Methods included from IgnoredNode

#ignore_node, #ignored_node?, #part_of_ignored_node?

Methods included from Util

begins_its_line?, block_length, command?, comment_line?, const_name, directions, first_part_of_call_chain, lambda?, lambda_or_proc?, line_range, move_pos, numeric_range_size, on_node, operator?, parentheses?, proc?, range_with_surrounding_comma, range_with_surrounding_space, source_range, strip_quotes, within_node?

Methods included from PathUtil

hidden?, issue_deprecation_warning, match_path?, relative_path

Constructor Details

This class inherits a constructor from RuboCop::Cop::Cop

Instance Method Details

#autocorrect(range) ⇒ Object


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# File 'lib/rubocop/cop/style/initial_indentation.rb', line 31

def autocorrect(range)
  ->(corrector) { corrector.remove(range) }
end

#investigate(processed_source) ⇒ Object


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# File 'lib/rubocop/cop/style/initial_indentation.rb', line 11

def investigate(processed_source)
  first_token = processed_source.tokens.find do |t|
    !t.text.start_with?('#')
  end
  return unless first_token
  return if first_token.pos.column == 0

  with_space = range_with_surrounding_space(first_token.pos, :left,
                                            nil, !:with_newline)
  # If the file starts with a byte order mark (BOM), the column can be
  # non-zero, but then we find out here if there's no space to the left
  # of the first token.
  return if with_space == first_token.pos

  space = Parser::Source::Range.new(processed_source.buffer,
                                    with_space.begin_pos,
                                    first_token.pos.begin_pos)
  add_offense(space, first_token.pos)
end