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lgierth/promise.rb

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Showing 5 of 5 total issues

Class Promise has 23 methods (exceeds 20 allowed). Consider refactoring.
Open

class Promise
  Error = Class.new(RuntimeError)
  BrokenError = Class.new(Error)

  include Promise::Progress
Severity: Minor
Found in lib/promise.rb - About 2 hrs to fix

    Method fulfill has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
    Open

      def fulfill(value = nil)
    return self unless pending?

    if value.is_a?(Promise)
      case value.state
    Severity: Minor
    Found in lib/promise.rb - About 55 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

    Identical blocks of code found in 2 locations. Consider refactoring.
    Open

      Promise.all([
                Promise.all([
                              Promise.resolve(1),
                              Promise.resolve(2),
                              Promise.resolve(3)
    Severity: Minor
    Found in benchmark/run.rb and 1 other location - About 50 mins to fix
    benchmark/run.rb on lines 29..45

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 43.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

    Identical blocks of code found in 2 locations. Consider refactoring.
    Open

        Promise.all([
                  Promise.all([
                                Promise.resolve(1),
                                Promise.resolve(2),
                                Promise.resolve(3)
    Severity: Minor
    Found in benchmark/run.rb and 1 other location - About 50 mins to fix
    benchmark/run.rb on lines 6..22

    Duplicated Code

    Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

    Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

    When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

    Tuning

    This issue has a mass of 43.

    We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

    The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

    If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

    See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

    Refactorings

    Further Reading

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

      def reason_coercion(reason)
    case reason
    when Exception
      reason.set_backtrace(caller) unless reason.backtrace
    when Class
    Severity: Minor
    Found in lib/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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