enclose-io/compiler

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current/deps/v8/tools/perf-compare.py

Summary

Maintainability
F
3 wks
Test Coverage

File perf-compare.py has 386 lines of code (exceeds 250 allowed). Consider refactoring.
Open

#!/usr/bin/env python
# Copyright 2017 the V8 project authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
'''
Severity: Minor
Found in current/deps/v8/tools/perf-compare.py - About 5 hrs to fix

    Function Render has a Cognitive Complexity of 28 (exceeds 5 allowed). Consider refactoring.
    Open

    def Render(args):
      benchmark_suites = {}
      run_names = OrderedDict()
    
      for json_file_list in args.json_file_list:
    Severity: Minor
    Found in current/deps/v8/tools/perf-compare.py - About 4 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

    Function ComputeProbability has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
    Open

      def ComputeProbability(z):
        if z > 2.575829: # p 0.005: two sided < 0.01
          return 0
        if z > 2.326348: # p 0.010
          return 0.01
    Severity: Minor
    Found in current/deps/v8/tools/perf-compare.py - About 1 hr 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

    Function Compare has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
    Open

      def Compare(self, other):
        if self.units_ != other.units_:
          print ("Incompatible units: %s and %s" % (self.units_, other.units_))
          sys.exit(1)
    
    
    Severity: Minor
    Found in current/deps/v8/tools/perf-compare.py - 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

    Avoid too many return statements within this function.
    Open

          return 0.06
    Severity: Major
    Found in current/deps/v8/tools/perf-compare.py - About 30 mins to fix

      Avoid too many return statements within this function.
      Open

            return 0.07
      Severity: Major
      Found in current/deps/v8/tools/perf-compare.py - About 30 mins to fix

        Avoid too many return statements within this function.
        Open

              return 0.10
        Severity: Major
        Found in current/deps/v8/tools/perf-compare.py - About 30 mins to fix

          Avoid too many return statements within this function.
          Open

                return 0.08
          Severity: Major
          Found in current/deps/v8/tools/perf-compare.py - About 30 mins to fix

            Avoid too many return statements within this function.
            Open

                return 0.20 # two sided p >= 0.20
            Severity: Major
            Found in current/deps/v8/tools/perf-compare.py - About 30 mins to fix

              Avoid too many return statements within this function.
              Open

                    return 0.04
              Severity: Major
              Found in current/deps/v8/tools/perf-compare.py - About 30 mins to fix

                Avoid too many return statements within this function.
                Open

                      return 0.05
                Severity: Major
                Found in current/deps/v8/tools/perf-compare.py - About 30 mins to fix

                  Avoid too many return statements within this function.
                  Open

                        return 0.09
                  Severity: Major
                  Found in current/deps/v8/tools/perf-compare.py - About 30 mins to fix

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

                    Severity: Major
                    Found in current/deps/v8/tools/perf-compare.py and 1 other location - About 3 wks to fix
                    lts/deps/v8/tools/perf-compare.py on lines 0..486

                    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 2367.

                    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

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