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HHRy/prawn-graph

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lib/prawn/graph/calculations/layout_calculator.rb

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Cyclomatic complexity for calculate_width_and_height_of_canvas is too high. [7/6]
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        def calculate_width_and_height_of_canvas
          if @canvas_width.zero? && @canvas_height.zero?
            @canvas_width   = BigDecimal(bounds[0], 10) 
            @canvas_height  = BigDecimal(bounds[1], 10) 
          elsif !@canvas_width.zero? && @canvas_height.zero?
Severity: Minor
Found in lib/prawn/graph/calculations/layout_calculator.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.

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