source stringclasses 1
value | repo stringlengths 5 63 | repo_url stringlengths 24 82 | path stringlengths 5 167 | language stringclasses 1
value | license stringclasses 5
values | stars int64 10 51.4k | ref stringclasses 23
values | size_bytes int64 200 258k | text stringlengths 137 258k |
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github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/correctors/string_literal_corrector.rb | Ruby | mit | 12,856 | master | 500 | # frozen_string_literal: true
module RuboCop
module Cop
# This autocorrects string literals
class StringLiteralCorrector
extend Util
class << self
def correct(corrector, node, style)
return if node.dstr_type?
str = node.str_content
if style == :single_quote... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/correctors/space_corrector.rb | Ruby | mit | 12,856 | master | 1,578 | # frozen_string_literal: true
module RuboCop
module Cop
# This autocorrects whitespace
class SpaceCorrector
extend SurroundingSpace
class << self
attr_reader :processed_source
def empty_corrections(processed_source, corrector, empty_config,
left_tok... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/correctors/empty_line_corrector.rb | Ruby | mit | 12,856 | master | 561 | # frozen_string_literal: true
module RuboCop
module Cop
# This class does empty line autocorrection
class EmptyLineCorrector
class << self
def correct(corrector, node)
offense_style, range = node
case offense_style
when :no_empty_lines
corrector.remove... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/correctors/lambda_literal_to_method_corrector.rb | Ruby | mit | 12,856 | master | 3,622 | # frozen_string_literal: true
module RuboCop
module Cop
# This class autocorrects lambda literal to method notation.
class LambdaLiteralToMethodCorrector
def initialize(block_node)
@block_node = block_node
@method = block_node.send_node
@arguments = block_node.arguments
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/correctors/punctuation_corrector.rb | Ruby | mit | 12,856 | master | 627 | # frozen_string_literal: true
module RuboCop
module Cop
# This autocorrects punctuation
class PunctuationCorrector
class << self
def remove_space(corrector, space_before)
corrector.remove(space_before)
end
def add_space(corrector, token)
corrector.replace(to... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/correctors/parentheses_corrector.rb | Ruby | mit | 12,856 | master | 2,943 | # frozen_string_literal: true
module RuboCop
module Cop
# This autocorrects parentheses
class ParenthesesCorrector
class << self
include RangeHelp
COMMA_REGEXP = /(?<=\))\s*,/.freeze
def correct(corrector, node)
buffer = node.source_range.source_buffer
corr... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/correctors/percent_literal_corrector.rb | Ruby | mit | 12,856 | master | 3,918 | # frozen_string_literal: true
module RuboCop
module Cop
# This autocorrects percent literals
class PercentLiteralCorrector
include Util
attr_reader :config, :preferred_delimiters
def initialize(config, preferred_delimiters)
@config = config
@preferred_delimiters = preferre... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/correctors/if_then_corrector.rb | Ruby | mit | 12,856 | master | 1,611 | # frozen_string_literal: true
module RuboCop
module Cop
# This class autocorrects `if...then` structures to a multiline `if` statement
class IfThenCorrector
DEFAULT_INDENTATION_WIDTH = 2
def initialize(if_node, indentation: nil)
@if_node = if_node
@indentation = indentation || DE... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/correctors/alignment_corrector.rb | Ruby | mit | 12,856 | master | 4,544 | # frozen_string_literal: true
module RuboCop
module Cop
# This class does autocorrection of nodes that should just be moved to
# the left or to the right, amount being determined by the instance
# variable column_delta.
class AlignmentCorrector
extend RangeHelp
extend Alignment
cla... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/correctors/ordered_gem_corrector.rb | Ruby | mit | 12,856 | master | 1,222 | # frozen_string_literal: true
module RuboCop
module Cop
# This autocorrects gem dependency order
class OrderedGemCorrector
class << self
include OrderedGemNode
include RangeHelp
attr_reader :processed_source, :comments_as_separators
def correct(processed_source, node,
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/bundler/gem_comment.rb | Ruby | mit | 12,856 | master | 5,435 | # frozen_string_literal: true
module RuboCop
module Cop
module Bundler
# Each gem in the Gemfile should have a comment explaining
# its purpose in the project, or the reason for its version
# or source.
#
# The optional "OnlyFor" configuration array
# can be used to only regis... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/bundler/ordered_gems.rb | Ruby | mit | 12,856 | master | 1,849 | # frozen_string_literal: true
module RuboCop
module Cop
module Bundler
# Gems should be alphabetically sorted within groups.
#
# @example
# # bad
# gem 'rubocop'
# gem 'rspec'
#
# # good
# gem 'rspec'
# gem 'rubocop'
#
# # good... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/bundler/gem_filename.rb | Ruby | mit | 12,856 | master | 3,413 | # frozen_string_literal: true
module RuboCop
module Cop
module Bundler
# Verifies that a project contains Gemfile or gems.rb file and correct
# associated lock file based on the configuration.
#
# @example EnforcedStyle: Gemfile (default)
# # bad
# Project contains gems.rb... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/bundler/duplicated_group.rb | Ruby | mit | 12,856 | master | 3,636 | # frozen_string_literal: true
module RuboCop
module Cop
module Bundler
# A Gem group, or a set of groups, should be listed only once in a Gemfile.
#
# For example, if the values of `source`, `git`, `platforms`, or `path`
# surrounding `group` are different, no offense will be registered:
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/bundler/gem_version.rb | Ruby | mit | 12,856 | master | 3,449 | # frozen_string_literal: true
module RuboCop
module Cop
module Bundler
# Enforce that Gem version specifications or a commit reference (branch,
# ref, or tag) are either required or forbidden.
#
# @example EnforcedStyle: required (default)
# # bad
# gem 'rubocop'
#
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/bundler/duplicated_gem.rb | Ruby | mit | 12,856 | master | 2,814 | # frozen_string_literal: true
module RuboCop
module Cop
module Bundler
# A Gem's requirements should be listed only once in a Gemfile.
#
# @example
# # bad
# gem 'rubocop'
# gem 'rubocop'
#
# # bad
# group :development do
# gem 'rubocop'
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/bundler/insecure_protocol_source.rb | Ruby | mit | 12,856 | master | 2,903 | # frozen_string_literal: true
module RuboCop
module Cop
module Bundler
# Passing symbol arguments to `source` (e.g. `source :rubygems`) is
# deprecated because they default to using HTTP requests. Instead, specify
# `'https://rubygems.org'` if possible, or `'http://rubygems.org'` if not.
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/empty_file.rb | Ruby | mit | 12,856 | master | 1,048 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Enforces that Ruby source files are not empty.
#
# @example
# # bad
# # Empty file
#
# # good
# # File containing non commented source lines
#
# @example AllowComments: true (... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/circular_argument_reference.rb | Ruby | mit | 12,856 | master | 2,720 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for circular argument references in optional keyword
# arguments and optional ordinal arguments.
#
# NOTE: This syntax was made invalid on Ruby 2.7 - Ruby 3.3 but is allowed
# again since Ruby 3.4.
#
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/regexp_as_condition.rb | Ruby | mit | 12,856 | master | 905 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for regexp literals used as `match-current-line`.
# If a regexp literal is in condition, the regexp matches `$_` implicitly.
#
# @example
# # bad
# if /foo/
# do_something
# end
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/require_range_parentheses.rb | Ruby | mit | 12,856 | master | 1,432 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks that a range literal is enclosed in parentheses when the end of the range is
# at a line break.
#
# NOTE: The following is maybe intended for `(42..)`. But, compatible is `42..do_something`.
# So, this cop ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/safe_navigation_with_empty.rb | Ruby | mit | 12,856 | master | 1,352 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks to make sure safe navigation isn't used with `empty?` in
# a conditional.
#
# While the safe navigation operator is generally a good idea, when
# checking `foo&.empty?` in a conditional, `foo` being `nil` w... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/unified_integer.rb | Ruby | mit | 12,856 | master | 922 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for using Fixnum or Bignum constant.
#
# @example
#
# # bad
# 1.is_a?(Fixnum)
# 1.is_a?(Bignum)
#
# # good
# 1.is_a?(Integer)
class UnifiedInteger < Base
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/non_deterministic_require_order.rb | Ruby | mit | 12,856 | master | 6,240 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# `Dir[...]` and `Dir.glob(...)` do not make any guarantees about
# the order in which files are returned. The final order is
# determined by the operating system and file system.
# This means that using them in cases whe... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/multiple_comparison.rb | Ruby | mit | 12,856 | master | 1,510 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# In math and Python, we can use `x < y < z` style comparison to compare
# multiple value. However, we can't use the comparison in Ruby. However,
# the comparison is not syntax error. This cop checks the bad usage of
# co... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/redundant_cop_disable_directive.rb | Ruby | mit | 12,856 | master | 12,972 | # frozen_string_literal: true
# The Lint/RedundantCopDisableDirective cop needs to be disabled so as
# to be able to provide a (bad) example of a redundant disable.
# rubocop:disable Lint/RedundantCopDisableDirective
module RuboCop
module Cop
module Lint
# Detects instances of rubocop:disable comments that... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/rescue_exception.rb | Ruby | mit | 12,856 | master | 880 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for `rescue` blocks targeting the `Exception` class.
#
# @example
#
# # bad
# begin
# do_something
# rescue Exception
# handle_exception
# end
#
# ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/duplicate_methods.rb | Ruby | mit | 12,856 | master | 13,252 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for duplicated instance (or singleton) method
# definitions.
#
# NOTE: Aliasing a method to itself is allowed, as it indicates that
# the developer intends to suppress Ruby's method redefinition warnings.
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/uri_regexp.rb | Ruby | mit | 12,856 | master | 1,858 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Identifies places where `URI.regexp` is obsolete and should not be used.
#
# For Ruby 3.3 or lower, use `URI::DEFAULT_PARSER.make_regexp`.
# For Ruby 3.4 or higher, use `URI::RFC2396_PARSER.make_regexp`.
#
#... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/else_layout.rb | Ruby | mit | 12,856 | master | 3,120 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for odd `else` block layout - like
# having an expression on the same line as the `else` keyword,
# which is usually a mistake.
#
# Its autocorrection tweaks layout to keep the syntax. So, this autocorrecti... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/to_enum_arguments.rb | Ruby | mit | 12,856 | master | 3,061 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Ensures that `to_enum`/`enum_for`, called for the current method,
# has correct arguments.
#
# @example
# # bad
# def foo(x, y = 1)
# return to_enum(__callee__, x) # `y` is missing
# en... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/percent_string_array.rb | Ruby | mit | 12,856 | master | 2,149 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for quotes and commas in %w, e.g. `%w('foo', "bar")`
#
# It is more likely that the additional characters are unintended (for
# example, mistranslating an array of literals to percent string notation)
# rat... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/hash_compare_by_identity.rb | Ruby | mit | 12,856 | master | 1,484 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Prefer using `Hash#compare_by_identity` rather than using `object_id`
# for hash keys.
#
# This cop looks for hashes being keyed by objects' `object_id`, using
# one of these methods: `key?`, `has_key?`, `fetch`, ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/empty_when.rb | Ruby | mit | 12,856 | master | 1,382 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for the presence of `when` branches without a body.
#
# @example
#
# # bad
# case foo
# when bar
# do_something
# when baz
# end
#
# # good
# ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/empty_in_pattern.rb | Ruby | mit | 12,856 | master | 1,461 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for the presence of `in` pattern branches without a body.
#
# @example
#
# # bad
# case condition
# in [a]
# do_something
# in [a, b]
# end
#
# # go... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/suppressed_exception_in_number_conversion.rb | Ruby | mit | 12,856 | master | 3,554 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for cases where exceptions unrelated to the numeric constructors `Integer()`,
# `Float()`, `BigDecimal()`, `Complex()`, and `Rational()` may be unintentionally swallowed.
#
# @safety
# The cop is unsafe f... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/redundant_safe_navigation.rb | Ruby | mit | 12,856 | master | 8,559 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for redundant safe navigation calls.
# Use cases where a constant, named in camel case for classes and modules is `nil` are rare,
# and an offense is not detected when the receiver is a constant. The detection also app... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/shared_mutable_default.rb | Ruby | mit | 12,856 | master | 2,675 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for `Hash` creation with a mutable default value.
# Creating a `Hash` in such a way will share the default value
# across all keys, causing unexpected behavior when modifying it.
#
# For example, when the `... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/redundant_cop_enable_directive.rb | Ruby | mit | 12,856 | master | 3,915 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Detects instances of rubocop:enable comments that can be
# removed.
#
# When comment enables all cops at once `rubocop:enable all`
# that cop checks whether any cop was actually enabled.
#
# @example
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/cop_directive_syntax.rb | Ruby | mit | 12,856 | master | 3,112 | # frozen_string_literal: true
# rubocop:disable Lint/RedundantCopDisableDirective
# rubocop:disable Style/DoubleCopDisableDirective
module RuboCop
module Cop
module Lint
# Checks that `# rubocop:enable ...` and `# rubocop:disable ...` statements
# are strictly formatted.
#
# A comment can... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/return_in_void_context.rb | Ruby | mit | 12,856 | master | 1,417 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for the use of a return with a value in a context
# where the value will be ignored. (initialize and setter methods)
#
# @example
#
# # bad
# def initialize
# foo
# retur... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/float_out_of_range.rb | Ruby | mit | 12,856 | master | 692 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Identifies `Float` literals which are, like, really really really
# really really really really really big. Too big. No-one needs Floats
# that big. If you need a float that big, something is wrong with you.
#
# @... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/ambiguous_operator.rb | Ruby | mit | 12,856 | master | 3,278 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for ambiguous operators in the first argument of a
# method invocation without parentheses.
#
# @example
#
# # bad
#
# # The `*` is interpreted as a splat operator but it could possibl... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/inherit_exception.rb | Ruby | mit | 12,856 | master | 2,970 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Looks for error classes inheriting from `Exception`.
# It is configurable to suggest using either `StandardError` (default) or
# `RuntimeError` instead.
#
# @safety
# This cop's autocorrection is unsafe be... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/suppressed_exception.rb | Ruby | mit | 12,856 | master | 2,721 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for `rescue` blocks with no body.
#
# @example
#
# # bad
# def some_method
# do_something
# rescue
# end
#
# # bad
# begin
# do_something
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/redundant_regexp_quantifiers.rb | Ruby | mit | 12,856 | master | 3,789 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for redundant quantifiers inside `Regexp` literals.
#
# It is always allowed when interpolation is used in a regexp literal,
# because it's unknown what kind of string will be expanded as a result:
#
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/parentheses_as_grouped_expression.rb | Ruby | mit | 12,856 | master | 2,283 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for space between the name of a called method and a left
# parenthesis.
#
# @example
#
# # bad
# do_something (foo)
#
# # good
# do_something(foo)
# do_somethin... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/ambiguous_block_association.rb | Ruby | mit | 12,856 | master | 3,195 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for ambiguous block association with method
# when param passed without parentheses.
#
# This cop can customize allowed methods with `AllowedMethods`.
# By default, there are no methods to allowed.
#
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/symbol_conversion.rb | Ruby | mit | 12,856 | master | 5,793 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for uses of literal strings converted to
# a symbol where a literal symbol could be used instead.
#
# There are two possible styles for this cop.
# `strict` (default) will register an offense for any incorr... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/next_without_accumulator.rb | Ruby | mit | 12,856 | master | 1,458 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Don't omit the accumulator when calling `next` in a `reduce` block.
#
# @example
#
# # bad
# result = (1..4).reduce(0) do |acc, i|
# next if i.odd?
# acc + i
# end
#
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/empty_interpolation.rb | Ruby | mit | 12,856 | master | 1,035 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for empty interpolation.
#
# @example
#
# # bad
# "result is #{}"
#
# # good
# "result is #{some_result}"
class EmptyInterpolation < Base
include Interpolation
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/constant_definition_in_block.rb | Ruby | mit | 12,856 | master | 2,662 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Do not define constants within a block, since the block's scope does not
# isolate or namespace the constant in any way.
#
# If you are trying to define that constant once, define it outside of
# the block instead... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/empty_conditional_body.rb | Ruby | mit | 12,856 | master | 4,112 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for the presence of `if`, `elsif` and `unless` branches without a body.
#
# NOTE: empty `else` branches are handled by `Style/EmptyElse`.
#
# @example
# # bad
# if condition
# end
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/require_parentheses.rb | Ruby | mit | 12,856 | master | 1,766 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for expressions where there is a call to a predicate
# method with at least one argument, where no parentheses are used around
# the parameter list, and a boolean operator, && or ||, is used in the
# last argumen... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/safe_navigation_consistency.rb | Ruby | mit | 12,856 | master | 5,519 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks that if safe navigation is used in an `&&` or `||` condition,
# consistent and appropriate safe navigation, without excess or deficiency,
# is used for all method calls on the same object.
#
# @safety
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/rescue_type.rb | Ruby | mit | 12,856 | master | 2,091 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for arguments to `rescue` that will result in a `TypeError`
# if an exception is raised.
#
# @example
# # bad
# begin
# bar
# rescue nil
# baz
# end
#
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/shadowing_outer_local_variable.rb | Ruby | mit | 12,856 | master | 3,812 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for the use of local variable names from an outer scope
# in block arguments or block-local variables. This mirrors the warning
# given by `ruby -cw` prior to Ruby 2.6:
# "shadowing outer local variable - foo".
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/shadowed_argument.rb | Ruby | mit | 12,856 | master | 5,242 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for shadowed arguments.
#
# This cop has `IgnoreImplicitReferences` configuration option.
# It means argument shadowing is used in order to pass parameters
# to zero arity `super` when `IgnoreImplicitRefere... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/loop.rb | Ruby | mit | 12,856 | master | 2,030 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for uses of `begin...end while/until something`.
#
# @safety
# The cop is unsafe because behavior can change in some cases, including
# if a local variable inside the loop body is accessed outside of it... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/interpolation_check.rb | Ruby | mit | 12,856 | master | 2,416 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for interpolation in a single quoted string.
#
# @safety
# This cop's autocorrection is unsafe because although it always replaces single quotes as
# if it were miswritten double quotes, it is not alway... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/shadowed_exception.rb | Ruby | mit | 12,856 | master | 5,509 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for a rescued exception that get shadowed by a
# less specific exception being rescued before a more specific
# exception is rescued.
#
# An exception is considered shadowed if it is rescued after its
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/nested_percent_literal.rb | Ruby | mit | 12,856 | master | 2,010 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for nested percent literals.
#
# @example
#
# # bad
#
# # The percent literal for nested_attributes is parsed as four tokens,
# # yielding the array [:name, :content, :"%i[incorrectl... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/missing_cop_enable_directive.rb | Ruby | mit | 12,856 | master | 3,826 | # frozen_string_literal: true
# rubocop:disable Lint/RedundantCopDisableDirective
module RuboCop
module Cop
module Lint
# Checks that there is an `# rubocop:enable ...` statement
# after a `# rubocop:disable ...` statement. This will prevent leaving
# cop disables on wide ranges of code, that l... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/binary_operator_with_identical_operands.rb | Ruby | mit | 12,856 | master | 2,039 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for places where binary operator has identical operands.
#
# It covers comparison operators: `==`, `===`, `=~`, `>`, `>=`, `<`, ``<=``;
# bitwise operators: `|`, `^`, `&`;
# boolean operators: `&&`, `||`
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/underscore_prefixed_variable_name.rb | Ruby | mit | 12,856 | master | 2,156 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for underscore-prefixed variables that are actually
# used.
#
# Since block keyword arguments cannot be arbitrarily named at call
# sites, the `AllowKeywordBlockArguments` will allow use of underscore-
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/empty_block.rb | Ruby | mit | 12,856 | master | 2,739 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for blocks without a body.
# Such empty blocks are typically an oversight or we should provide a comment
# to clarify what we're aiming for.
#
# Empty lambdas and procs are ignored by default.
#
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/or_assignment_to_constant.rb | Ruby | mit | 12,856 | master | 1,097 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for unintended or-assignment to a constant.
#
# Constants should always be assigned in the same location. And its value
# should always be the same. If constants are assigned in multiple
# locations, the re... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/big_decimal_new.rb | Ruby | mit | 12,856 | master | 1,094 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# `BigDecimal.new()` is deprecated since BigDecimal 1.3.3.
# This cop identifies places where `BigDecimal.new()`
# can be replaced by `BigDecimal()`.
#
# @example
# # bad
# BigDecimal.new(123.456, 3)... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/percent_symbol_array.rb | Ruby | mit | 12,856 | master | 1,721 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for colons and commas in %i, e.g. `%i(:foo, :bar)`
#
# It is more likely that the additional characters are unintended (for
# example, mistranslating an array of literals to percent string notation)
# rathe... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/each_with_object_argument.rb | Ruby | mit | 12,856 | master | 1,171 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks if each_with_object is called with an immutable
# argument. Since the argument is the object that the given block shall
# make calls on to build something based on the enumerable that
# each_with_object iterates ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/non_local_exit_from_iterator.rb | Ruby | mit | 12,856 | master | 2,851 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for non-local exits from iterators without a return
# value. It registers an offense under these conditions:
#
# * No value is returned,
# * the block is preceded by a method chain,
# * the block has ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/disjunctive_assignment_in_constructor.rb | Ruby | mit | 12,856 | master | 3,044 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks constructors for disjunctive assignments (`||=`) that should
# be plain assignments.
#
# So far, this cop is only concerned with disjunctive assignment of
# instance variables.
#
# In ruby, an i... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/constant_overwritten_in_rescue.rb | Ruby | mit | 12,856 | master | 1,461 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for overwriting an exception with an exception result by use ``rescue =>``.
#
# You intended to write as `rescue StandardError`.
# However, you have written `rescue => StandardError`.
# In that case, the re... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/useless_rescue.rb | Ruby | mit | 12,856 | master | 2,428 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for useless ``rescue``s, which only reraise rescued exceptions.
#
# @example
# # bad
# def foo
# do_something
# rescue
# raise
# end
#
# # bad
# ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/literal_in_interpolation.rb | Ruby | mit | 12,856 | master | 7,190 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for interpolated literals.
#
# NOTE: Array literals interpolated in regexps are not handled by this cop, but
# by `Lint/ArrayLiteralInRegexp` instead.
#
# @example
#
# # bad
# "r... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/redundant_require_statement.rb | Ruby | mit | 12,856 | master | 2,894 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for unnecessary `require` statement.
#
# The following features are unnecessary `require` statement because
# they are already loaded. e.g. Ruby 2.2:
#
# ruby -ve 'p $LOADED_FEATURES.reject { |featu... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/useless_default_value_argument.rb | Ruby | mit | 12,856 | master | 2,952 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for usage of method `fetch` or `Array.new` with default value argument
# and block. In such cases, block will always be used as default value.
#
# This cop emulates Ruby warning "block supersedes default value ar... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/duplicate_require.rb | Ruby | mit | 12,856 | master | 1,609 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for duplicate ``require``s and ``require_relative``s.
#
# @safety
# This cop's autocorrection is unsafe because it may break the dependency order
# of `require`.
#
# @example
# # bad... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/useless_assignment.rb | Ruby | mit | 12,856 | master | 8,485 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for every useless assignment to local variable in every
# scope.
# The basic idea for this cop was from the warning of `ruby -cw`:
#
# [source,console]
# ----
# assigned but unused variable - fo... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/redundant_with_index.rb | Ruby | mit | 12,856 | master | 2,194 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for redundant `with_index`.
#
# @example
# # bad
# ary.each_with_index do |v|
# v
# end
#
# # good
# ary.each do |v|
# v
# end
#
# ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/duplicate_case_condition.rb | Ruby | mit | 12,856 | master | 912 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks that there are no repeated conditions
# used in case 'when' expressions.
#
# @example
#
# # bad
# case x
# when 'first'
# do_something
# when 'first'
# do... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/non_atomic_file_operation.rb | Ruby | mit | 12,856 | master | 6,262 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for non-atomic file operation.
# And then replace it with a nearly equivalent and atomic method.
#
# These can cause problems that are difficult to reproduce,
# especially in cases of frequent file operatio... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/unused_method_argument.rb | Ruby | mit | 12,856 | master | 4,279 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for unused method arguments.
#
# @example
# # bad
# def some_method(used, unused, _unused_but_allowed)
# puts used
# end
#
# # good
# def some_method(used, _unuse... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/duplicate_branch.rb | Ruby | mit | 12,856 | master | 5,287 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks that there are no repeated bodies
# within `if/unless`, `case-when`, `case-in` and `rescue` constructs.
#
# With `IgnoreLiteralBranches: true`, branches are not registered
# as offenses if they return a bas... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/erb_new_arguments.rb | Ruby | mit | 12,856 | master | 5,763 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Emulates the following Ruby warnings in Ruby 2.6.
#
# [source,console]
# ----
# $ cat example.rb
# ERB.new('hi', nil, '-', '@output_buffer')
# $ ruby -rerb example.rb
# example.rb:1: warning: Pas... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/useless_or.rb | Ruby | mit | 12,856 | master | 3,897 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for useless OR (`||` and `or`) expressions.
#
# Some methods always return a truthy value, even when called
# on `nil` (e.g. `nil.to_i` evaluates to `0`). Therefore, OR expressions
# appended after these me... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/no_return_in_begin_end_blocks.rb | Ruby | mit | 12,856 | master | 1,576 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for the presence of a `return` inside a `begin..end` block
# in assignment contexts.
# In this situation, the `return` will result in an exit from the current
# method, possibly leading to unexpected behavior.
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/ambiguous_range.rb | Ruby | mit | 12,856 | master | 3,546 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for ambiguous ranges.
#
# Ranges have quite low precedence, which leads to unexpected behavior when
# using a range with other operators. This cop avoids that by making ranges
# explicit by requiring parent... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/format_parameter_mismatch.rb | Ruby | mit | 12,856 | master | 5,752 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# This lint sees if there is a mismatch between the number of
# expected fields for format/sprintf/#% and what is actually
# passed as arguments.
#
# In addition, it checks whether different formats are used in the ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/void.rb | Ruby | mit | 12,856 | master | 10,550 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for operators, variables, literals, lambda, proc and nonmutating
# methods used in void context.
#
# `each` blocks are allowed to prevent false positives.
# For example, the expression inside the `each` blo... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/unescaped_bracket_in_regexp.rb | Ruby | mit | 12,856 | master | 2,379 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for Regexpes (both literals and via `Regexp.new` / `Regexp.compile`)
# that contain unescaped `]` characters.
#
# It emulates the following Ruby warning:
#
# [source,ruby]
# ----
# $ ruby ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/unreachable_code.rb | Ruby | mit | 12,856 | master | 4,038 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for unreachable code.
# The check are based on the presence of flow of control
# statement in non-final position in `begin` (implicit) blocks.
#
# @example
#
# # bad
# def some_method
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/lambda_without_literal_block.rb | Ruby | mit | 12,856 | master | 1,577 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks uses of lambda without a literal block.
# It emulates the following warning in Ruby 3.0:
#
# $ ruby -vwe 'lambda(&proc {})'
# ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [x86_64-darwin19]
# -e... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/flip_flop.rb | Ruby | mit | 12,856 | master | 917 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Looks for uses of flip-flop operator
# based on the Ruby Style Guide.
#
# Here is the history of flip-flops in Ruby.
# flip-flop operator is deprecated in Ruby 2.6.0 and
# the deprecation has been reverted b... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/it_without_arguments_in_block.rb | Ruby | mit | 12,856 | master | 1,445 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Emulates the following Ruby warning in Ruby 3.3.
#
# [source,ruby]
# ----
# $ ruby -e '0.times { it }'
# -e:1: warning: `it` calls without arguments will refer to the first block param in Ruby 3.4;
# u... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/empty_class.rb | Ruby | mit | 12,856 | master | 2,199 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for classes and metaclasses without a body.
# Such empty classes and metaclasses are typically an oversight or we should provide a comment
# to be clearer what we're aiming for.
#
# @example
# # bad... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/numbered_parameter_assignment.rb | Ruby | mit | 12,856 | master | 1,577 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for uses of numbered parameter assignment.
# It emulates the following warning in Ruby 2.7:
#
# $ ruby -ve '_1 = :value'
# ruby 2.7.2p137 (2020-10-01 revision 5445e04352) [x86_64-darwin19]
# -e:... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/useless_else_without_rescue.rb | Ruby | mit | 12,856 | master | 1,014 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for useless `else` in `begin..end` without `rescue`.
#
# NOTE: This syntax is no longer valid on Ruby 2.6 or higher.
#
# @example
#
# # bad
# begin
# do_something
# e... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/out_of_range_regexp_ref.rb | Ruby | mit | 12,856 | master | 3,842 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Looks for references of `Regexp` captures that are out of range
# and thus always returns nil.
#
# @safety
# This cop is unsafe because it is naive in how it determines what
# references are available ba... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/constant_reassignment.rb | Ruby | mit | 12,856 | master | 5,732 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for constant reassignments.
#
# Emulates Ruby's runtime warning "already initialized constant X"
# when a constant is reassigned in the same file and namespace.
#
# The cop tracks constants defined vi... |
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