Class: RuboCop::Cop::Style::RedundantCondition

Inherits:
Base
  • Object
show all
Extended by:
AutoCorrector
Includes:
AllowedMethods, CommentsHelp, RangeHelp
Defined in:
lib/rubocop/cop/style/redundant_condition.rb

Overview

Checks for unnecessary conditional expressions.

NOTE: Since the intention of the comment cannot be automatically determined, autocorrection is not applied when a comment is used, as shown below:

source,ruby

if b

# Important note. b

else

c

end

Examples:

# bad a = b ? b : c # good a = b || c # bad if b b else c end # good b || c # good if b b elsif cond c end # bad a.nil? ? true : a # good a.nil? || a # bad if a.nil? true else a end # good a.nil? || a

AllowedMethods: [‘nonzero?’] (default)

# good num.nonzero? ? true : false

Constant Summary collapse

MSG = 
'Use double pipes `||` instead.'
REDUNDANT_CONDITION = 
'This condition is not needed.'
ARGUMENT_WITH_OPERATOR_TYPES = 
%i[  splat block_pass forwarded_restarg forwarded_kwrestarg forwarded_args ].freeze

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

Instance Method Summary collapse

Methods included from AutoCorrector

support_autocorrect?

Methods included from CommentsHelp

#comments_contain_disables?, #comments_in_range, #contains_comments?, #source_range_with_comment

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_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

Instance Method Details

#on_if(node) ⇒ Object 

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# File 'lib/rubocop/cop/style/redundant_condition.rb', line 77 def on_if(node) return if node.modifier_form? || node.elsif_conditional? || !offense?(node) message = message(node) add_offense(range_of_offense(node), message: message) do |corrector| autocorrect(corrector, node) end end