Class: RuboCop::Cop::Layout::LineContinuationLeadingSpace

Inherits:
Base
  • Object
show all
Extended by:
AutoCorrector
Includes:
RangeHelp
Defined in:
lib/rubocop/cop/layout/line_continuation_leading_space.rb

Overview

Checks that strings broken over multiple lines (by a backslash) contain trailing spaces instead of leading spaces (default) or leading spaces instead of trailing spaces.

Examples:

EnforcedStyle: trailing (default)

# bad
'this text contains a lot of' \
'               spaces'

# good
'this text contains a lot of               ' \
'spaces'

# bad
'this text is too' \
' long'

# good
'this text is too ' \
'long'

EnforcedStyle: leading

# bad
'this text contains a lot of               ' \
'spaces'

# good
'this text contains a lot of' \
'               spaces'

# bad
'this text is too ' \
'long'

# good
'this text is too' \
' long'

Constant Summary

Constants included from RangeHelp

RangeHelp::BYTE_ORDER_MARK, RangeHelp::NOT_GIVEN

Constants inherited from Base

Base::RESTRICT_ON_SEND

Instance Attribute Summary

Attributes inherited from Base

#config, #processed_source

Class Method Summary collapse

Instance Method Summary collapse

Methods included from AutoCorrector

support_autocorrect?

Methods inherited from Base

#active_support_extensions_enabled?, #add_global_offense, #add_offense, #always_autocorrect?, badge, #begin_investigation, callbacks_needed, #callbacks_needed, #config_to_allow_offenses, #config_to_allow_offenses=, #contextual_autocorrect?, #cop_config, cop_name, #cop_name, department, documentation_url, exclude_from_registry, #excluded_file?, #external_dependency_checksum, inherited, #initialize, #inspect, joining_forces, lint?, match?, #offenses, #on_investigation_end, #on_new_investigation, #on_other_file, #parse, #parser_engine, #ready, #relevant_file?, requires_gem, #string_literals_frozen_by_default?, support_autocorrect?, support_multiple_source?, #target_gem_version, #target_rails_version, #target_ruby_version

Methods included from ExcludeLimit

#exclude_limit

Methods included from AutocorrectLogic

#autocorrect?, #autocorrect_enabled?, #autocorrect_requested?, #autocorrect_with_disable_uncorrectable?, #correctable?, #disable_uncorrectable?, #safe_autocorrect?

Methods included from IgnoredNode

#ignore_node, #ignored_node?, #part_of_ignored_node?

Methods included from Util

silence_warnings

Constructor Details

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

Class Method Details

.autocorrect_incompatible_with ⇒ Object

When both cops are activated and run in the same iteration of the correction loop, ‘Style/StringLiterals` undoes the moving of spaces that `Layout/LineContinuationLeadingSpace` performs. This is because `Style/StringLiterals` takes the original string content and transforms it, rather than just modifying the delimiters, in order to handle escaping for quotes within the string.

[View source]

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# File 'lib/rubocop/cop/layout/line_continuation_leading_space.rb', line 59

def self.autocorrect_incompatible_with
  [Style::StringLiterals]
end

Instance Method Details

#on_dstr(node) ⇒ Object

[View source]

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# File 'lib/rubocop/cop/layout/line_continuation_leading_space.rb', line 63

def on_dstr(node)
  # Quick check if we possibly have line continuations.
  return unless node.source.include?('\\')

  end_of_first_line = node.source_range.begin_pos - node.source_range.column

  lines = raw_lines(node)
  lines.each_cons(2).with_index(node.first_line) do |(raw_line_one, raw_line_two), line_num|
    end_of_first_line += raw_line_one.length

    next unless continuation?(raw_line_one, line_num, node)

    investigate(raw_line_one, raw_line_two, end_of_first_line)
  end
end