Showing 2,171 of 2,171 total issues
Redundant self
detected. Open
self._validate_callbacks.select do |callback|
- Read upRead up
- Exclude checks
This cop checks for redundant uses of self
.
The usage of self
is only needed when:
Sending a message to same object with zero arguments in presence of a method name clash with an argument or a local variable.
Calling an attribute writer to prevent an local variable assignment.
Note, with using explicit self you can only send messages with public or protected scope, you cannot send private messages this way.
Note we allow uses of self
with operators because it would be awkward
otherwise.
Example:
# bad
def foo(bar)
self.baz
end
# good
def foo(bar)
self.bar # Resolves name clash with the argument.
end
def foo
bar = 1
self.bar # Resolves name clash with the local variable.
end
def foo
%w[x y z].select do |bar|
self.bar == bar # Resolves name clash with argument of the block.
end
end
Use the lambda
method for multiline lambdas. Open
scope :with_links, -> context do
- Read upRead up
- Exclude checks
This cop (by default) checks for uses of the lambda literal syntax for single line lambdas, and the method call syntax for multiline lambdas. It is configurable to enforce one of the styles for both single line and multiline lambdas as well.
Example: EnforcedStyle: linecountdependent (default)
# bad
f = lambda { |x| x }
f = ->(x) do
x
end
# good
f = ->(x) { x }
f = lambda do |x|
x
end
Example: EnforcedStyle: lambda
# bad
f = ->(x) { x }
f = ->(x) do
x
end
# good
f = lambda { |x| x }
f = lambda do |x|
x
end
Example: EnforcedStyle: literal
# bad
f = lambda { |x| x }
f = lambda do |x|
x
end
# good
f = ->(x) { x }
f = ->(x) do
x
end
Use the lambda
method for multiline lambdas. Open
scope :with_descriptions, -> context do
- Read upRead up
- Exclude checks
This cop (by default) checks for uses of the lambda literal syntax for single line lambdas, and the method call syntax for multiline lambdas. It is configurable to enforce one of the styles for both single line and multiline lambdas as well.
Example: EnforcedStyle: linecountdependent (default)
# bad
f = lambda { |x| x }
f = ->(x) do
x
end
# good
f = ->(x) { x }
f = lambda do |x|
x
end
Example: EnforcedStyle: lambda
# bad
f = ->(x) { x }
f = ->(x) do
x
end
# good
f = lambda { |x| x }
f = lambda do |x|
x
end
Example: EnforcedStyle: literal
# bad
f = lambda { |x| x }
f = lambda do |x|
x
end
# good
f = ->(x) { x }
f = ->(x) do
x
end
Missing top-level module documentation comment. Open
module WithLocaleNames
- Read upRead up
- Exclude checks
This cop checks for missing top-level documentation of classes and modules. Classes with no body are exempt from the check and so are namespace modules - modules that have nothing in their bodies except classes, other modules, or constant definitions.
The documentation requirement is annulled if the class or module has a "#:nodoc:" comment next to it. Likewise, "#:nodoc: all" does the same for all its children.
Example:
# bad
class Person
# ...
end
# good
# Description/Explanation of Person class
class Person
# ...
end
Space missing after semicolon. Open
super ;end ;end
- Read upRead up
- Exclude checks
Checks for semicolon (;) not followed by some kind of space.
Example:
# bad
x = 1;y = 2
# good
x = 1; y = 2
Use the lambda
method for multiline lambdas. Open
scope :with_pure_links, -> do
- Read upRead up
- Exclude checks
This cop (by default) checks for uses of the lambda literal syntax for single line lambdas, and the method call syntax for multiline lambdas. It is configurable to enforce one of the styles for both single line and multiline lambdas as well.
Example: EnforcedStyle: linecountdependent (default)
# bad
f = lambda { |x| x }
f = ->(x) do
x
end
# good
f = ->(x) { x }
f = lambda do |x|
x
end
Example: EnforcedStyle: lambda
# bad
f = ->(x) { x }
f = ->(x) do
x
end
# good
f = lambda { |x| x }
f = lambda do |x|
x
end
Example: EnforcedStyle: literal
# bad
f = lambda { |x| x }
f = lambda do |x|
x
end
# good
f = ->(x) { x }
f = ->(x) do
x
end
Use 3 (not -1) spaces for indenting an expression spanning multiple lines. Open
.order( :describable_type )
- Read upRead up
- Exclude checks
This cop checks the indentation of the method name part in method calls that span more than one line.
Example: EnforcedStyle: aligned
# bad
while myvariable
.b
# do something
end
# good
while myvariable
.b
# do something
end
# good
Thing.a
.b
.c
Example: EnforcedStyle: indented
# good
while myvariable
.b
# do something
end
Example: EnforcedStyle: indentedrelativeto_receiver
# good
while myvariable
.a
.b
# do something
end
# good
myvariable = Thing
.a
.b
.c
Space inside parentheses detected. Open
alphabeth_codes = Languageble.alphabeth_list_for( language_codes ).flatten
- Read upRead up
- Exclude checks
Checks for spaces inside ordinary round parentheses.
Example:
# bad
f( 3)
g = (a + 3 )
# good
f(3)
g = (a + 3)
Do not use space inside array brackets. Open
language_codes = [ context[:locales] ].flatten
- Read upRead up
- Exclude checks
Checks that brackets used for array literals have or don't have surrounding space depending on configuration.
Example: EnforcedStyle: space
# The `space` style enforces that array literals have
# surrounding space.
# bad
array = [a, b, c, d]
# good
array = [ a, b, c, d ]
Example: EnforcedStyle: no_space
# The `no_space` style enforces that array literals have
# no surrounding space.
# bad
array = [ a, b, c, d ]
# good
array = [a, b, c, d]
Example: EnforcedStyle: compact
# The `compact` style normally requires a space inside
# array brackets, with the exception that successive left
# or right brackets are collapsed together in nested arrays.
# bad
array = [ a, [ b, c ] ]
# good
array = [ a, [ b, c ]]
Redundant self
detected. Open
selector = self.select_values.dup
- Read upRead up
- Exclude checks
This cop checks for redundant uses of self
.
The usage of self
is only needed when:
Sending a message to same object with zero arguments in presence of a method name clash with an argument or a local variable.
Calling an attribute writer to prevent an local variable assignment.
Note, with using explicit self you can only send messages with public or protected scope, you cannot send private messages this way.
Note we allow uses of self
with operators because it would be awkward
otherwise.
Example:
# bad
def foo(bar)
self.baz
end
# good
def foo(bar)
self.bar # Resolves name clash with the argument.
end
def foo
bar = 1
self.bar # Resolves name clash with the local variable.
end
def foo
%w[x y z].select do |bar|
self.bar == bar # Resolves name clash with argument of the block.
end
end
Space found before semicolon. Open
rel && rel.merge(and_rel) || and_rel ;end;end
- Read upRead up
- Exclude checks
Checks for semicolon (;) preceded by space.
Example:
# bad
x = 1 ; y = 2
# good
x = 1; y = 2
Prefer single-quoted strings when you don't need string interpolation or special symbols. Open
selector.concat [ "language_names.text AS _language", "alphabeth_names.text AS _alphabeth" ]
- Read upRead up
- Exclude checks
Checks if uses of quotes match the configured preference.
Example: EnforcedStyle: single_quotes (default)
# bad
"No special symbols"
"No string interpolation"
"Just text"
# good
'No special symbols'
'No string interpolation'
'Just text'
"Wait! What's #{this}!"
Example: EnforcedStyle: double_quotes
# bad
'Just some text'
'No special chars or interpolation'
# good
"Just some text"
"No special chars or interpolation"
"Every string in #{project} uses double_quotes"
Do not use spaces between ->
and opening brace in lambda literals Open
scope :with_descriptions, -> context do
join_name = table.table_alias || table.name
language_codes = [context[:locales]].flatten
alphabeth_codes = Languageble.alphabeth_list_for(language_codes).flatten
selector = self.select_values.dup
- Read upRead up
- Exclude checks
This cop checks for spaces between -> and opening parameter brace in lambda literals.
Example: EnforcedStyle: requirenospace (default)
# bad
a = -> (x, y) { x + y }
# good
a = ->(x, y) { x + y }
Example: EnforcedStyle: require_space
# bad
a = ->(x, y) { x + y }
# good
a = -> (x, y) { x + y }
unexpected token error
(Using Ruby 2.1 parser; configure using TargetRubyVersion
parameter, under AllCops
) Open
@language ||= titles.first&.language_code || descriptions.first&.language_code
- Exclude checks
*' interpreted as argument prefix
(Using Ruby 2.1 parser; configure using
TargetRubyVersionparameter, under
AllCops`) Open
self.thumb_url = File.join *[image.asset_host.to_s, image.store_dir, "thumb_" + image.filename]
- Exclude checks
Do not use space inside reference brackets. Open
digits + firsts[ 0...4 - digits.size ].join
- Read upRead up
- Exclude checks
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
# no surrounding space.
# bad
hash[ :key ]
array[ index ]
# good
hash[:key]
array[index]
Example: EnforcedStyle: space
# The `space` style enforces that reference brackets have
# surrounding space.
# bad
hash[:key]
array[index]
# good
hash[ :key ]
array[ index ]
Space missing after semicolon. Open
self.default_key = key ;end
- Read upRead up
- Exclude checks
Checks for semicolon (;) not followed by some kind of space.
Example:
# bad
x = 1;y = 2
# good
x = 1; y = 2
Align .map
with .gsub
on line 17. Open
.map do |x|
- Read upRead up
- Exclude checks
This cop checks the indentation of the method name part in method calls that span more than one line.
Example: EnforcedStyle: aligned
# bad
while myvariable
.b
# do something
end
# good
while myvariable
.b
# do something
end
# good
Thing.a
.b
.c
Example: EnforcedStyle: indented
# good
while myvariable
.b
# do something
end
Example: EnforcedStyle: indentedrelativeto_receiver
# good
while myvariable
.a
.b
# do something
end
# good
myvariable = Thing
.a
.b
.c
Do not use space inside reference brackets. Open
last = words[ 1 ].gsub( /[аеёиоуъыьэюя]+/, '' )[ 0...3 ]
- Read upRead up
- Exclude checks
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
# no surrounding space.
# bad
hash[ :key ]
array[ index ]
# good
hash[:key]
array[index]
Example: EnforcedStyle: space
# The `space` style enforces that reference brackets have
# surrounding space.
# bad
hash[:key]
array[index]
# good
hash[ :key ]
array[ index ]
Extra empty line detected at class body end. Open
validates_presence_of :order ;end
- Read upRead up
- Exclude checks
This cops checks if empty lines around the bodies of classes match the configuration.
Example: EnforcedStyle: empty_lines
# good
class Foo
def bar
# ...
end
end
Example: EnforcedStyle: emptylinesexcept_namespace
# good
class Foo
class Bar
# ...
end
end
Example: EnforcedStyle: emptylinesspecial
# good
class Foo
def bar; end
end
Example: EnforcedStyle: noemptylines (default)
# good
class Foo
def bar
# ...
end
end