Showing 4 of 4 total issues
Method included
has 48 lines of code (exceeds 25 allowed). Consider refactoring. Open
Open
def included(base)
base.class_eval do
AttrMemoized::LOCK.synchronize do
@attr_memoized_mutex ||= Mutex.new
end
Method attr_memoized
has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring. Open
Open
def attr_memoized(*attributes, **opts)
attributes = Array[*attributes]
callable = attributes.pop
unless SUPPORTED_INIT_TYPES.include?(callable.class)
raise ArgumentError, "Invalid argument #{callable} to attr_memoized. Expecting one of: #{SUPPORTED_INIT_TYPES.map(&:to_s)}"
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Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
Freeze mutable objects assigned to constants. Open
Open
VERSION = '0.3.1'
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- Exclude checks
This cop checks whether some constant value isn't a mutable literal (e.g. array or hash).
Example:
# bad
CONST = [1, 2, 3]
# good
CONST = [1, 2, 3].freeze
Use yield
instead of block.call
. Open
Open
block.call
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- Exclude checks
This cop identifies the use of a &block
parameter and block.call
where yield
would do just as well.
Example:
# bad
def method(&block)
block.call
end
def another(&func)
func.call 1, 2, 3
end
# good
def method
yield
end
def another
yield 1, 2, 3
end