Class: RuboCop::Cop::Style::SpaceBeforeBlockBraces

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

Overview

Checks that block braces have or don't have a space before the opening brace depending on configuration.

Constant Summary

Constants included from Util

Util::ASGN_NODES, Util::EQUALS_ASGN_NODES, 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 included from ConfigurableEnforcedStyle

#alternative_style, #both_styles_detected, #correct_style_detected, #opposite_style_detected, #parameter_name, #style, #unrecognized_style_detected

Methods inherited from Cop

#add_offense, all, #autocorrect?, #config_to_allow_offenses, #config_to_allow_offenses=, #cop_config, cop_name, #cop_name, cop_type, #debug?, #display_cop_names?, #exclude_file?, #include_file?, inherited, #initialize, #join_force?, lint?, #message, non_rails, qualified_cop_name, rails?, #relevant_file?, #support_autocorrect?

Methods included from IgnoredNode

#ignore_node, #ignored_node?, #part_of_ignored_node?

Methods included from Util

block_length, command?, comment_line?, const_name, first_part_of_call_chain, lambda?, lambda_or_proc?, line_range, numeric_range_size, on_node, operator?, parentheses?, proc?, range_with_surrounding_space, source_range, strip_quotes

Methods included from PathUtil

match_path?, relative_path

Constructor Details

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

Instance Method Details

#on_block(node) ⇒ Object 



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

def on_block(node)
  return if node.loc.begin.is?('do') # No braces.

  # If braces are on separate lines, and the Blocks cop is enabled,
  # those braces will be changed to do..end by the user or by
  # auto-correct, so reporting space issues is not useful, and it
  # creates auto-correct conflicts.
  if config.for_cop('Style/Blocks')['Enabled'] &&
      Util.block_length(node) > 0
    return
  end

  left_brace = node.loc.begin
  space_plus_brace = range_with_surrounding_space(left_brace)
  used_style =
    space_plus_brace.source.start_with?('{') ? :no_space : :space

  case used_style
  when style  then correct_style_detected
  when :space then space_detected(left_brace, space_plus_brace)
  else             space_missing(left_brace)
  end
end