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bbatsov/rubocop

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lib/rubocop/cop/style/map_compact_with_conditional_block.rb

Summary

Maintainability
A
2 hrs
Test Coverage

Method on_send has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.
Open

        def on_send(node)
          map_candidate = node.children.first
          if (block_argument, condition, return_value = conditional_block(map_candidate))
            return unless node.method?(:compact) && node.arguments.empty?
Severity: Minor
Found in lib/rubocop/cop/style/map_compact_with_conditional_block.rb - 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

Method inspect has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
Open

        def inspect(node, block_argument_node, condition_node, return_value_node, range)
          return unless returns_block_argument?(block_argument_node, return_value_node)
          return if condition_node.parent.elsif?

          method = truthy_branch?(return_value_node) ? 'select' : 'reject'
Severity: Minor
Found in lib/rubocop/cop/style/map_compact_with_conditional_block.rb - About 45 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

Method inspect has 5 arguments (exceeds 4 allowed). Consider refactoring.
Open

        def inspect(node, block_argument_node, condition_node, return_value_node, range)
Severity: Minor
Found in lib/rubocop/cop/style/map_compact_with_conditional_block.rb - About 35 mins to fix

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