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lib/spoon/util/ast_extensions.rb

Summary

Maintainability
A
2 hrs
Test Coverage

Cyclomatic complexity for to_op is too high. [8/6]
Open

      def to_op
        str = trim

        return "..." if str == ".." || str == "to"
        return "!" if str == "not"
Severity: Minor
Found in lib/spoon/util/ast_extensions.rb by rubocop

This cop checks that the cyclomatic complexity of methods is not higher than the configured maximum. The cyclomatic complexity is the number of linearly independent paths through a method. The algorithm counts decision points and adds one.

An if statement (or unless or ?:) increases the complexity by one. An else branch does not, since it doesn't add a decision point. The && operator (or keyword and) can be converted to a nested if statement, and ||/or is shorthand for a sequence of ifs, so they also add one. Loops can be said to have an exit condition, so they add one.

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

      def to_op
        str = trim

        return "..." if str == ".." || str == "to"
        return "!" if str == "not"
Severity: Minor
Found in lib/spoon/util/ast_extensions.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

Avoid too many return statements within this method.
Open

        return "!=" if str == "isnt"
Severity: Major
Found in lib/spoon/util/ast_extensions.rb - About 30 mins to fix

    Avoid too many return statements within this method.
    Open

            return str
    Severity: Major
    Found in lib/spoon/util/ast_extensions.rb - About 30 mins to fix

      Avoid too many return statements within this method.
      Open

              return  "==" if str == "is"
      Severity: Major
      Found in lib/spoon/util/ast_extensions.rb - About 30 mins to fix

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