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 |
|---|---|---|---|---|---|---|---|---|---|
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/incompatible_io_select_with_fiber_scheduler.rb | Ruby | mit | 12,856 | master | 2,668 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for `IO.select` that is incompatible with Fiber Scheduler since Ruby 3.0.
#
# When an array of IO objects waiting for an exception (the third argument of `IO.select`)
# is used as an argument, there is no alterna... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/empty_expression.rb | Ruby | mit | 12,856 | master | 709 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for the presence of empty expressions.
#
# @example
#
# # bad
#
# foo = ()
# if ()
# bar
# end
#
# # good
#
# foo = (some_expression)
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/ambiguous_regexp_literal.rb | Ruby | mit | 12,856 | master | 2,511 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for ambiguous regexp literals in the first argument of
# a method invocation without parentheses.
#
# @example
#
# # bad
#
# # This is interpreted as a method invocation with a regexp ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/debugger.rb | Ruby | mit | 12,856 | master | 4,283 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for debug calls (such as `debugger` or `binding.pry`) that should
# not be kept for production code.
#
# The cop can be configured using `DebuggerMethods`. By default, a number of gems
# debug entrypoints a... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/redundant_splat_expansion.rb | Ruby | mit | 12,856 | master | 6,200 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for unneeded usages of splat expansion.
#
# @example
#
# # bad
# a = *[1, 2, 3]
# a = *'a'
# a = *1
# ['a', 'b', *%w(c d e), 'f', 'g']
#
# # good
# c ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/unreachable_loop.rb | Ruby | mit | 12,856 | master | 5,929 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for loops that will have at most one iteration.
#
# A loop that can never reach the second iteration is a possible error in the code.
# In rare cases where only one iteration (or at most one iteration) is intende... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/numeric_operation_with_constant_result.rb | Ruby | mit | 12,856 | master | 2,863 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Certain numeric operations have a constant result, usually 0 or 1.
# Multiplying a number by 0 will always return 0.
# Dividing a number by itself or raising it to the power of 0 will always return 1.
# As such, they ca... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/redundant_type_conversion.rb | Ruby | mit | 12,856 | master | 8,866 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for redundant uses of `to_s`, `to_sym`, `to_i`, `to_f`, `to_d`, `to_r`, `to_c`,
# `to_a`, `to_h`, and `to_set`.
#
# When one of these methods is called on an object of the same type, that object
# is return... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/implicit_string_concatenation.rb | Ruby | mit | 12,856 | master | 3,477 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for implicit string concatenation of string literals
# which are on the same line.
#
# @example
#
# # bad
# array = ['Item 1' 'Item 2']
#
# # good
# array = ['Item 1Ite... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/unreachable_pattern_branch.rb | Ruby | mit | 12,856 | master | 3,040 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for unreachable `in` pattern branches in `case...in` statements.
#
# An `in` branch is unreachable when a previous branch uses an unguarded
# catch-all pattern that matches any value unconditionally. Any `in` bra... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/nested_method_definition.rb | Ruby | mit | 12,856 | master | 3,620 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for nested method definitions.
#
# @example
#
# # bad
#
# # `bar` definition actually produces methods in the same scope
# # as the outer `foo` method. Furthermore, the `bar` method
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/mixed_case_range.rb | Ruby | mit | 12,856 | master | 3,618 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for mixed-case character ranges since they include likely unintended characters.
#
# Offenses are registered for regexp character classes like `/[A-z]/`
# as well as range objects like `('A'..'z')`.
#
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/struct_new_override.rb | Ruby | mit | 12,856 | master | 3,144 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks unexpected overrides of the `Struct` built-in methods
# via `Struct.new`.
#
# @example
# # bad
# Bad = Struct.new(:members, :clone, :count)
# b = Bad.new([], true, 1)
# b.members #... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/ineffective_access_modifier.rb | Ruby | mit | 12,856 | master | 3,469 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for `private` or `protected` access modifiers which are
# applied to a singleton method. These access modifiers do not make
# singleton methods private/protected. `private_class_method` can be
# used for that.
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/redundant_string_coercion.rb | Ruby | mit | 12,856 | master | 1,865 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for string conversion in string interpolation, `print`, `puts`, and `warn` arguments,
# which is redundant.
#
# @example
#
# # bad
# "result is #{something.to_s}"
# print something.t... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/script_permission.rb | Ruby | mit | 12,856 | master | 2,074 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks if a file which has a shebang line as
# its first line is granted execute permission.
#
# @example
# # bad
#
# # A file which has a shebang line as its first line is not
# # granted ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/useless_numeric_operation.rb | Ruby | mit | 12,856 | master | 2,064 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Certain numeric operations have no impact, being:
# Adding or subtracting 0, multiplying or dividing by 1 or raising to the power of 1.
# These are probably leftover from debugging, or are mistakes.
#
# @example
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/safe_navigation_chain.rb | Ruby | mit | 12,856 | master | 4,562 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# The safe navigation operator returns nil if the receiver is
# nil. If you chain an ordinary method call after a safe
# navigation operator, it raises NoMethodError. We should use a
# safe navigation operator after a saf... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/to_json.rb | Ruby | mit | 12,856 | master | 1,306 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks to make sure `#to_json` includes an optional argument.
# When overriding `#to_json`, callers may invoke JSON
# generation via `JSON.generate(your_obj)`. Since `JSON#generate` allows
# for an optional argument, yo... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/ordered_magic_comments.rb | Ruby | mit | 12,856 | master | 2,381 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks the proper ordering of magic comments and whether
# a magic comment is not placed before a shebang.
#
# @safety
# This cop's autocorrection is unsafe because file encoding may change.
#
# @exa... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/duplicate_magic_comment.rb | Ruby | mit | 12,856 | master | 1,848 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for duplicated magic comments.
#
# @example
#
# # bad
#
# # encoding: ascii
# # encoding: ascii
#
# # good
#
# # encoding: ascii
#
# # bad
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/array_literal_in_regexp.rb | Ruby | mit | 12,856 | master | 3,999 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for an array literal interpolated inside a regexp.
#
# When interpolating an array literal, it is converted to a string. This means
# that when inside a regexp, it acts as a character class but with additional
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/uri_escape_unescape.rb | Ruby | mit | 12,856 | master | 2,824 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Identifies places where `URI.escape` can be replaced by
# `CGI.escape`, `URI.encode_www_form`, or `URI.encode_www_form_component`
# depending on your specific use case.
# Also this cop identifies places where `URI.unesc... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/constant_resolution.rb | Ruby | mit | 12,856 | master | 2,531 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks that certain constants are fully qualified.
#
# This is not enabled by default because it would mark a lot of offenses
# unnecessarily.
#
# Generally, gems should fully qualify all constants to avoid ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/deprecated_constants.rb | Ruby | mit | 12,856 | master | 3,134 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for deprecated constants.
#
# It has `DeprecatedConstants` config. If there is an alternative method, you can set
# alternative value as `Alternative`. And you can set the deprecated version as
# `Deprecate... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/syntax.rb | Ruby | mit | 12,856 | master | 2,457 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Repacks Parser's diagnostics/errors
# into RuboCop's offenses.
class Syntax < Base
LEVELS = %i[error fatal].freeze
def on_other_file
add_offense_from_error(processed_source.parser_error) if processe... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/useless_access_modifier.rb | Ruby | mit | 12,856 | master | 10,313 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for redundant access modifiers, including those with no
# code, those which are repeated, those which are on top-level, and
# leading `public` modifiers in a class or module body.
# Conditionally-defined methods ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/raise_exception.rb | Ruby | mit | 12,856 | master | 3,562 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for `raise` or `fail` statements which raise `Exception` or
# `Exception.new`. Use `StandardError` or a specific exception class instead.
#
# If you have defined your own namespaced `Exception` class, it is possi... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/empty_ensure.rb | Ruby | mit | 12,856 | master | 909 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for empty `ensure` blocks.
#
# @example
#
# # bad
# def some_method
# do_something
# ensure
# end
#
# # bad
# begin
# do_something
#... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/identity_comparison.rb | Ruby | mit | 12,856 | master | 1,657 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Prefer `equal?` over `==` when comparing `object_id`.
#
# `Object#equal?` is provided to compare objects for identity, and in contrast
# `Object#==` is provided for the purpose of doing value comparison.
#
#... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/rand_one.rb | Ruby | mit | 12,856 | master | 925 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for `rand(1)` calls.
# Such calls always return `0`.
#
# @example
#
# # bad
# rand 1
# Kernel.rand(-1)
# rand 1.0
# rand(-1.0)
#
# # good
# 0 # ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/deprecated_class_methods.rb | Ruby | mit | 12,856 | master | 3,730 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for uses of the deprecated class method usages.
#
# @example
#
# # bad
# File.exists?(some_path)
# Dir.exists?(some_path)
# iterator?
# attr :name, true
# attr :nam... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/useless_defined.rb | Ruby | mit | 12,856 | master | 1,863 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for calls to `defined?` with strings or symbols as the argument.
# Such calls will always return `'expression'`, you probably meant to
# check for the existence of a constant, method, or variable instead.
#
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/useless_ruby2_keywords.rb | Ruby | mit | 12,856 | master | 3,792 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Looks for `ruby2_keywords` calls for methods that do not need it.
#
# `ruby2_keywords` should only be called on methods that accept an argument splat
# (`\*args`) but do not explicit keyword arguments (`k:` or `k: true`... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/heredoc_method_call_position.rb | Ruby | mit | 12,856 | master | 4,129 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for the ordering of a method call where
# the receiver of the call is a HEREDOC.
#
# @example
# # bad
# <<-SQL
# bar
# SQL
# .strip_indent
#
# <<-SQL
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/redundant_dir_glob_sort.rb | Ruby | mit | 12,856 | master | 1,754 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Sort globbed results by default in Ruby 3.0.
# This cop checks for redundant `sort` method to `Dir.glob` and `Dir[]`.
#
# @safety
# This cop is unsafe, in case of having a file and a directory with
# ide... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/missing_super.rb | Ruby | mit | 12,856 | master | 4,954 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for the presence of constructors and lifecycle callbacks
# without calls to `super`.
#
# This cop does not consider `method_missing` (and `respond_to_missing?`)
# because in some cases it makes sense to ove... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/duplicate_regexp_character_class_element.rb | Ruby | mit | 12,856 | master | 2,342 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for duplicate elements in `Regexp` character classes.
#
# @example
#
# # bad
# r = /[xyx]/
#
# # bad
# r = /[0-9x0-9]/
#
# # good
# r = /[xy]/
#
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/boolean_symbol.rb | Ruby | mit | 12,856 | master | 1,574 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for `:true` and `:false` symbols.
# In most cases it would be a typo.
#
# @safety
# Autocorrection is unsafe for this cop because code relying
# on `:true` or `:false` symbols will break when thos... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/ambiguous_operator_precedence.rb | Ruby | mit | 12,856 | master | 3,152 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Looks for expressions containing multiple binary operators
# where precedence is ambiguous due to lack of parentheses. For example,
# in `1 + 2 * 3`, the multiplication will happen before the addition, but
# lexically i... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/duplicate_match_pattern.rb | Ruby | mit | 12,856 | master | 2,914 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks that there are no repeated patterns used in `in` keywords.
#
# @example
#
# # bad
# case x
# in 'first'
# do_something
# in 'first'
# do_something_else
# ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/mixed_regexp_capture_types.rb | Ruby | mit | 12,856 | master | 928 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Do not mix named captures and numbered captures in a `Regexp` literal
# because numbered capture is ignored if they're mixed.
# Replace numbered captures with non-capturing groupings or
# named captures.
#
#... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/trailing_comma_in_attribute_declaration.rb | Ruby | mit | 12,856 | master | 1,407 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for trailing commas in attribute declarations, such as
# `#attr_reader`. Leaving a trailing comma will nullify the next method
# definition by overriding it with a getter method.
#
# @example
#
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/refinement_import_methods.rb | Ruby | mit | 12,856 | master | 1,544 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks if `include` or `prepend` is called in `refine` block.
# These methods are deprecated and should be replaced with `Refinement#import_methods`.
#
# It emulates deprecation warnings in Ruby 3.1. Functionality has b... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/unused_block_argument.rb | Ruby | mit | 12,856 | master | 4,681 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for unused block arguments.
#
# @example
# # bad
# do_something do |used, unused|
# puts used
# end
#
# do_something do |bar|
# puts :foo
# end
#
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/data_define_override.rb | Ruby | mit | 12,856 | master | 2,352 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks unexpected overrides of the `Data` built-in methods
# via `Data.define`.
#
# @example
# # bad
# Bad = Data.define(:members, :clone, :to_s)
# b = Bad.new(members: [], clone: true, to_s: 'ba... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/send_with_mixin_argument.rb | Ruby | mit | 12,856 | master | 2,561 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for `send`, `public_send`, and `__send__` methods
# when using mix-in.
#
# `include` and `prepend` methods were private methods until Ruby 2.0,
# they were mixed-in via `send` method. This cop uses Ruby 2.1... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/useless_constant_scoping.rb | Ruby | mit | 12,856 | master | 2,148 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for useless constant scoping. Private constants must be defined using
# `private_constant`. Even if `private` access modifier is used, it is public scope despite
# its appearance.
#
# It does not support au... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/duplicate_hash_key.rb | Ruby | mit | 12,856 | master | 834 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for duplicated keys in hash literals.
# This cop considers both primitive types and constants for the hash keys.
#
# This cop mirrors a warning in Ruby 2.2.
#
# @example
#
# # bad
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/useless_setter_call.rb | Ruby | mit | 12,856 | master | 4,787 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for setter call to local variable as the final
# expression of a function definition.
#
# @safety
# There are edge cases in which the local variable references a
# value that is also accessible ou... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/duplicate_elsif_condition.rb | Ruby | mit | 12,856 | master | 902 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks that there are no repeated conditions used in if 'elsif'.
#
# @example
# # bad
# if x == 1
# do_something
# elsif x == 1
# do_something_else
# end
#
# #... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/duplicate_rescue_exception.rb | Ruby | mit | 12,856 | master | 1,125 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks that there are no repeated exceptions
# used in 'rescue' expressions.
#
# @example
# # bad
# begin
# something
# rescue FirstException
# handle_exception
# resc... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/hash_new_with_keyword_arguments_as_default.rb | Ruby | mit | 12,856 | master | 1,723 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for the deprecated use of keyword arguments as a default in `Hash.new`.
#
# This usage raises a warning in Ruby 3.3 and results in an error in Ruby 3.4.
# In Ruby 3.4, keyword arguments will instead be used to ch... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/useless_times.rb | Ruby | mit | 12,856 | master | 3,404 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for uses of `Integer#times` that will never yield
# (when the integer ``<= 0``) or that will only ever yield once
# (`1.times`).
#
# @safety
# This cop is unsafe as `times` returns its receiver, whi... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/self_assignment.rb | Ruby | mit | 12,856 | master | 4,588 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for self-assignments.
#
# @example
# # bad
# foo = foo
# foo, bar = foo, bar
# Foo = Foo
# hash['foo'] = hash['foo']
# obj.attr = obj.attr
#
# # good
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/literal_as_condition.rb | Ruby | mit | 12,856 | master | 8,579 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for literals used as the conditions or as
# operands in and/or expressions serving as the conditions of
# if/while/until/case-when/case-in.
#
# NOTE: Literals in `case-in` condition where the match variable... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/unexpected_block_arity.rb | Ruby | mit | 12,856 | master | 2,858 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for a block that is known to need more positional
# block arguments than are given (by default this is configured for
# `Enumerable` methods needing 2 arguments). Optional arguments are allowed,
# although they d... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/ensure_return.rb | Ruby | mit | 12,856 | master | 1,218 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for `return` from an `ensure` block.
# `return` from an ensure block is a dangerous code smell as it
# will take precedence over any exception being raised,
# and the exception will be silently thrown away as if ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/duplicate_set_element.rb | Ruby | mit | 12,856 | master | 2,470 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for duplicate literal, constant, or variable elements in `Set` and `SortedSet`.
#
# @example
#
# # bad
# Set[:foo, :bar, :foo]
#
# # good
# Set[:foo, :bar]
#
# ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/number_conversion.rb | Ruby | mit | 12,856 | master | 6,278 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Warns the usage of unsafe number conversions. Unsafe
# number conversion can cause unexpected error if auto type conversion
# fails. Cop prefer parsing with number class instead.
#
# Conversion with `Integer`, `Fl... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/literal_assignment_in_condition.rb | Ruby | mit | 12,856 | master | 2,297 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for literal assignments in the conditions of `if`, `while`, and `until`.
# It emulates the following Ruby warning:
#
# [source,console]
# ----
# $ ruby -we 'if x = true; end'
# -e:1: warning: fo... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/top_level_return_with_argument.rb | Ruby | mit | 12,856 | master | 1,351 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for top level return with arguments. If there is a
# top-level return statement with an argument, then the argument is
# always ignored. This is detected automatically since Ruby 2.7.
#
# @example
# ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/deprecated_open_ssl_constant.rb | Ruby | mit | 12,856 | master | 4,367 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Algorithmic constants for `OpenSSL::Cipher` and `OpenSSL::Digest`
# deprecated since OpenSSL version 2.2.0. Prefer passing a string
# instead.
#
# @example
#
# # bad
# OpenSSL::Cipher::AES.ne... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/unmodified_reduce_accumulator.rb | Ruby | mit | 12,856 | master | 7,844 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Looks for `reduce` or `inject` blocks where the value returned (implicitly or
# explicitly) does not include the accumulator. A block is considered valid as
# long as at least one return value includes the accumulator.
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/assignment_in_condition.rb | Ruby | mit | 12,856 | master | 3,116 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for assignments in the conditions of
# if/while/until.
#
# `AllowSafeAssignment` option for safe assignment.
# By safe assignment we mean putting parentheses around
# an assignment to indicate "I know... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/useless_method_definition.rb | Ruby | mit | 12,856 | master | 1,973 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for useless method definitions, specifically: empty constructors
# and methods just delegating to `super`.
#
# @safety
# This cop is unsafe as it can register false positives for cases when an empty
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/require_relative_self_path.rb | Ruby | mit | 12,856 | master | 1,380 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for uses a file requiring itself with `require_relative`.
#
# @example
#
# # bad
#
# # foo.rb
# require_relative 'foo'
# require_relative 'bar'
#
# # good
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/triple_quotes.rb | Ruby | mit | 12,856 | master | 2,079 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for "triple quotes" (strings delimited by any odd number
# of quotes greater than 1).
#
# Ruby allows multiple strings to be implicitly concatenated by just
# being adjacent in a statement (ie. `"foo""bar" ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/float_comparison.rb | Ruby | mit | 12,856 | master | 4,069 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for the presence of precise comparison of floating point numbers.
#
# Floating point values are inherently inaccurate, and comparing them for exact equality
# is almost never the desired semantics. Comparison via... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/ambiguous_assignment.rb | Ruby | mit | 12,856 | master | 1,309 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for mistyped shorthand assignments.
#
# @example
# # bad
# x =- y
# x =+ y
# x =* y
# x =! y
#
# # good
# x -= y # or x = -y
# x += y # or x = +y
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/redundant_with_object.rb | Ruby | mit | 12,856 | master | 1,999 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
# Checks for redundant `with_object`.
#
# @example
# # bad
# ary.each_with_object([]) do |v|
# v
# end
#
# # good
# ary.each do |v|
# v
# end
#
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/lint/utils/nil_receiver_checker.rb | Ruby | mit | 12,856 | master | 4,442 | # frozen_string_literal: true
module RuboCop
module Cop
module Lint
module Utils
# Utility class that checks if the receiver can't be nil.
class NilReceiverChecker
NIL_METHODS = (nil.methods + %i[!]).to_set.freeze
def initialize(receiver, additional_nil_methods)
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/variable_force/variable_table.rb | Ruby | mit | 12,856 | master | 3,831 | # frozen_string_literal: true
module RuboCop
module Cop
class VariableForce
# A VariableTable manages the lifetime of all scopes and local variables
# in a program.
# This holds scopes as stack structure, provides a way to add local
# variables to current scope, and find local variables b... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/variable_force/branch.rb | Ruby | mit | 12,856 | master | 9,271 | # frozen_string_literal: true
module RuboCop
module Cop
class VariableForce
# Namespace for branch classes for each control structure.
module Branch
def self.of(target_node, scope: nil)
([target_node] + target_node.ancestors).each do |node|
return nil unless node.parent
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/variable_force/variable.rb | Ruby | mit | 12,856 | master | 4,153 | # frozen_string_literal: true
module RuboCop
module Cop
class VariableForce
# A Variable represents existence of a local variable.
# This holds a variable declaration node and some states of the variable.
class Variable
VARIABLE_DECLARATION_TYPES = (VARIABLE_ASSIGNMENT_TYPES + ARGUMENT_... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/variable_force/scope.rb | Ruby | mit | 12,856 | master | 2,997 | # frozen_string_literal: true
module RuboCop
module Cop
class VariableForce
# A Scope represents a context of local variable visibility.
# This is a place where local variables belong to.
# A scope instance holds a scope node and variable entries.
class Scope
OUTER_SCOPE_CHILD_IND... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/variable_force/branchable.rb | Ruby | mit | 12,856 | master | 585 | # frozen_string_literal: true
module RuboCop
module Cop
class VariableForce
# Mix-in module for classes which own a node and need branch information
# of the node. The user classes must implement #node and #scope.
module Branchable
def branch
return @branch if instance_variabl... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/variable_force/reference.rb | Ruby | mit | 12,856 | master | 1,311 | # frozen_string_literal: true
module RuboCop
module Cop
class VariableForce
# This class represents each reference of a variable.
class Reference
include Branchable
VARIABLE_REFERENCE_TYPES = (
[VARIABLE_REFERENCE_TYPE] + OPERATOR_ASSIGNMENT_TYPES + [ZERO_ARITY_SUPER_TYPE, ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/variable_force/assignment.rb | Ruby | mit | 12,856 | master | 4,336 | # frozen_string_literal: true
module RuboCop
module Cop
class VariableForce
# This class represents each assignment of a variable.
class Assignment
include Branchable
MULTIPLE_LEFT_HAND_SIDE_TYPE = :mlhs
attr_reader :node, :variable, :referenced, :references, :reassigned
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/utils/format_string.rb | Ruby | mit | 12,856 | master | 4,207 | # frozen_string_literal: true
module RuboCop
module Cop
module Utils
# Parses {Kernel#sprintf} format strings.
class FormatString
# Escaping the `#` in `INTERPOLATION` and `TEMPLATE_NAME` is necessary to
# avoid a bug in Ruby 3.2.0
# See: https://bugs.ruby-lang.org/issues/1937... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/trailing_whitespace.rb | Ruby | mit | 12,856 | master | 3,602 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Looks for trailing whitespace in the source code.
#
# @example
# # The line in this example contains spaces after the 0.
# # bad
# x = 0
#
# # The line in this example ends directly aft... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/space_around_operators.rb | Ruby | mit | 12,856 | master | 9,313 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks that operators have space around them, except for ** which
# should or shouldn't have surrounding space depending on configuration.
# It allows vertical alignment consisting of one or more whitespace
# around o... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/line_end_string_concatenation_indentation.rb | Ruby | mit | 12,856 | master | 4,173 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks the indentation of the next line after a line that ends with a string
# literal and a backslash.
#
# If `EnforcedStyle: aligned` is set, the concatenated string parts shall be aligned with the
# first par... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/condition_position.rb | Ruby | mit | 12,856 | master | 1,368 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks for conditions that are not on the same line as
# if/while/until.
#
# @example
#
# # bad
# if
# some_condition
# do_something
# end
#
# # good
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/empty_lines_around_attribute_accessor.rb | Ruby | mit | 12,856 | master | 3,724 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks for a newline after an attribute accessor or a group of them.
# `alias` syntax and `alias_method`, `public`, `protected`, and `private` methods are allowed
# by default. These are customizable with `AllowAliasSyntax`... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/else_alignment.rb | Ruby | mit | 12,856 | master | 4,387 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks the alignment of else keywords. Normally they should
# be aligned with an if/unless/while/until/begin/def/rescue keyword, but there
# are special cases when they should follow the same rules as the
# alignment ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/trailing_empty_lines.rb | Ruby | mit | 12,856 | master | 3,534 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Looks for trailing blank lines and a final newline in the
# source code.
#
# @example EnforcedStyle: final_newline (default)
# # `final_newline` looks for one newline at the end of files.
#
# # b... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/indentation_width.rb | Ruby | mit | 12,856 | master | 15,443 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks for indentation that doesn't use the specified number of spaces.
# The indentation width can be configured using the `Width` setting. The default width is 2.
# The block body indentation for method chain blocks can b... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/space_in_lambda_literal.rb | Ruby | mit | 12,856 | master | 2,277 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks for spaces between `->` and opening parameter
# parenthesis (`(`) in lambda literals.
#
# @example EnforcedStyle: require_no_space (default)
# # bad
# a = -> (x, y) { x + y }
#
# #... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/end_of_line.rb | Ruby | mit | 12,856 | master | 3,103 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks for Windows-style line endings in the source code.
#
# @example EnforcedStyle: native (default)
# # The `native` style means that CR+LF (Carriage Return + Line Feed) is
# # enforced on Windows, and LF... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/space_before_brackets.rb | Ruby | mit | 12,856 | master | 966 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks for space between the name of a receiver and a left
# brackets.
#
# @example
#
# # bad
# collection [index_or_key]
#
# # good
# collection[index_or_key]
#
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/multiline_assignment_layout.rb | Ruby | mit | 12,856 | master | 3,445 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks whether the multiline assignments have a newline
# after the assignment operator.
#
# @example EnforcedStyle: new_line (default)
# # bad
# foo = if expression
# 'bar'
# end
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/space_before_first_arg.rb | Ruby | mit | 12,856 | master | 2,322 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks that exactly one space is used between a method name and the
# first argument for method calls without parentheses.
#
# Alternatively, extra spaces can be added to align the argument with
# something on a... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/space_inside_reference_brackets.rb | Ruby | mit | 12,856 | master | 4,301 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks that reference brackets have or don't have
# surrounding space depending on configuration.
#
# @example EnforcedStyle: no_space (default)
# # The `no_space` style enforces that reference brackets have
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/single_line_block_chain.rb | Ruby | mit | 12,856 | master | 2,118 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks if method calls are chained onto single line blocks. It considers that a
# line break before the dot improves the readability of the code.
#
# @example
# # bad
# example.select { |item| item.con... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/empty_lines_around_arguments.rb | Ruby | mit | 12,856 | master | 1,991 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks if empty lines exist around the arguments
# of a method invocation.
#
# @example
# # bad
# do_something(
# foo
#
# )
#
# process(bar,
#
# ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/empty_lines.rb | Ruby | mit | 12,856 | master | 1,903 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks for two or more consecutive blank lines.
#
# @example
#
# # bad - It has two empty lines.
# some_method
# # one empty line
# # two empty lines
# some_method
#
... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/first_parameter_indentation.rb | Ruby | mit | 12,856 | master | 2,910 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks the indentation of the first parameter in a method
# definition. Parameters after the first one are checked by
# `Layout/ParameterAlignment`, not by this cop.
#
# For indenting the first argument of metho... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/space_after_colon.rb | Ruby | mit | 12,856 | master | 1,329 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks for colon (`:`) not followed by some kind of space.
# N.B. this cop does not handle spaces after a ternary operator, which are
# instead handled by `Layout/SpaceAroundOperators`.
#
# @example
# # ... |
github | rubocop/rubocop | https://github.com/rubocop/rubocop | lib/rubocop/cop/layout/closing_heredoc_indentation.rb | Ruby | mit | 12,856 | master | 3,031 | # frozen_string_literal: true
module RuboCop
module Cop
module Layout
# Checks the indentation of here document closings.
#
# @example
#
# # bad
# class Foo
# def bar
# <<~SQL
# 'Hi'
# SQL
# end
# end
#
... |
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