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ruby-concurrency/concurrent-ruby

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lib/concurrent-ruby/concurrent/thread_safe/util/striped64.rb

Summary

Maintainability
B
5 hrs
Test Coverage

Method retry_update has a Cognitive Complexity of 24 (exceeds 5 allowed). Consider refactoring.
Open

        def retry_update(x, hash_code, was_uncontended) # :yields: current_value
          hash     = hash_code
          collided = false # True if last slot nonempty
          while true
            if current_cells = cells
Severity: Minor
Found in lib/concurrent-ruby/concurrent/thread_safe/util/striped64.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

Method retry_update has 32 lines of code (exceeds 25 allowed). Consider refactoring.
Open

        def retry_update(x, hash_code, was_uncontended) # :yields: current_value
          hash     = hash_code
          collided = false # True if last slot nonempty
          while true
            if current_cells = cells
Severity: Minor
Found in lib/concurrent-ruby/concurrent/thread_safe/util/striped64.rb - About 1 hr to fix

    Method try_initialize_cells has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
    Open

            def try_initialize_cells(x, hash)
          if free? && !cells
            try_in_busy do
              unless cells # Recheck under lock
                new_cells = PowerOfTwoTuple.new(2)
    Severity: Minor
    Found in lib/concurrent-ruby/concurrent/thread_safe/util/striped64.rb - About 25 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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