Class: RuboCop::Cop::Style::CollectionMethods

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

Overview

Enforces the use of consistent method names from the Enumerable module.

You can customize the mapping from undesired method to desired method.

e.g. to use ‘detect` over `find`:

Style/CollectionMethods:
  PreferredMethods:
    find: detect

Examples:

# These examples are based on the default mapping for `PreferredMethods`.

# bad
items.collect
items.collect!
items.collect_concat
items.inject
items.detect
items.find_all
items.member?

# good
items.map
items.map!
items.flat_map
items.reduce
items.find
items.select
items.include?

Constant Summary collapse

MSG = 
'Prefer `%<prefer>s` over `%<current>s`.'

Constants inherited from Base

Base::RESTRICT_ON_SEND

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?, #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_block(node) ⇒ Object Also known as: on_numblock 



49
50
51
 
# File 'lib/rubocop/cop/style/collection_methods.rb', line 49

def on_block(node)
  check_method_node(node.send_node)
end

#on_send(node) ⇒ Object 



55
56
57
58
59
 
# File 'lib/rubocop/cop/style/collection_methods.rb', line 55

def on_send(node)
  return unless implicit_block?(node)

  check_method_node(node)
end