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25 mins
Test Coverage

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

      def check_name(name, forbidden: [])
        raise CompileError, "capture name can't be empty" if name.nil? or name.empty?
        raise CompileError, "capture name must start with underscore or lower case letter" unless name =~ /^[a-z_]/
        raise CompileError, "capture name can't be #{name}" if Array(forbidden).include? name
        raise CompileError, "can't use the same capture name twice" if names.include? name
Severity: Minor
Found in mustermann/lib/mustermann/ast/validation.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"

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