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stdlib/promise.rb

Summary

Maintainability
B
4 hrs
Test Coverage

Method >> has a Cognitive Complexity of 22 (exceeds 5 allowed). Consider refactoring.
Open

  def >>(promise)
    @next << promise

    if exception?
      promise.reject(@delayed[0])
Severity: Minor
Found in stdlib/promise.rb - About 3 hrs to fix

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

Avoid deeply nested control flow statements.
Open

        promise.reject(@delayed ? @delayed[0] : error)
Severity: Major
Found in stdlib/promise.rb - About 45 mins to fix

    Method reject has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
    Open

      def reject(value = nil)
    if realized?
      raise ArgumentError, 'the promise has already been realized'
    end
    Severity: Minor
    Found in stdlib/promise.rb - About 35 mins to fix

    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

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