Class: RuboCop::Cop::Style::OperatorMethodCall

Inherits:
Base
  • Object
show all
Extended by:
AutoCorrector
Defined in:
lib/rubocop/cop/style/operator_method_call.rb

Overview

Checks for redundant dot before operator method call. The target operator methods are ‘|`, `^`, `&`, “<=>“, `==`, `===`, `=~`, `>`, `>=`, `<`, “<=“, `<<`, `>>`, `+`, `-`, `*`, `/`, `%`, `**`, `~`, `!`, `!=`, and `!~`.

Examples:


# bad
foo.+ bar
foo.& bar

# good
foo + bar
foo & bar

Constant Summary collapse

MSG = 
'Redundant dot detected.'
RESTRICT_ON_SEND = 
%i[| ^ & <=> == === =~ > >= < <= << >> + - * / % ** ~ ! != !~].freeze
INVALID_SYNTAX_ARG_TYPES = 
%i[
  splat kwsplat forwarded_args forwarded_restarg forwarded_kwrestarg block_pass
].freeze

Instance Attribute Summary

Attributes inherited from Base

#config, #processed_source

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?, autocorrect_incompatible_with, 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?, #message, #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_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

Instance Method Details

#on_send(node) ⇒ Object

rubocop:disable Metrics/AbcSize, Metrics/CyclomaticComplexity



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# File 'lib/rubocop/cop/style/operator_method_call.rb', line 30

def on_send(node)
  return unless (dot = node.loc.dot)
  return if node.receiver.const_type? || !node.arguments.one?

  _lhs, _op, rhs = *node
  if !rhs || method_call_with_parenthesized_arg?(rhs) || invalid_syntax_argument?(rhs)
    return
  end

  add_offense(dot) do |corrector|
    wrap_in_parentheses_if_chained(corrector, node)
    corrector.replace(dot, ' ')

    selector = node.loc.selector
    corrector.insert_after(selector, ' ') if insert_space_after?(node)
  end
end