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SciRuby/nmatrix

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lib/nmatrix/blas.rb

Summary

Maintainability
D
2 days
Test Coverage

Method gemm has a Cognitive Complexity of 34 (exceeds 5 allowed). Consider refactoring.
Open

    def gemm(a, b, c = nil, alpha = 1.0, beta = 0.0,
             transpose_a = false, transpose_b = false, m = nil,
             n = nil, k = nil, lda = nil, ldb = nil, ldc = nil)

      raise(ArgumentError, 'Expected dense NMatrices as first two arguments.') \
Severity: Minor
Found in lib/nmatrix/blas.rb - About 5 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

Method gemv has a Cognitive Complexity of 24 (exceeds 5 allowed). Consider refactoring.
Open

    def gemv(a, x, y = nil, alpha = 1.0, beta = 0.0,
             transpose_a = false, m = nil, n = nil, lda = nil,
             incx = nil, incy = nil)
      raise(ArgumentError, 'Expected dense NMatrices as first two arguments.') \
       unless a.is_a?(NMatrix) and x.is_a?(NMatrix) and \
Severity: Minor
Found in lib/nmatrix/blas.rb - About 3 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

Method gemm has 13 arguments (exceeds 4 allowed). Consider refactoring.
Open

    def gemm(a, b, c = nil, alpha = 1.0, beta = 0.0,
             transpose_a = false, transpose_b = false, m = nil,
             n = nil, k = nil, lda = nil, ldb = nil, ldc = nil)
Severity: Major
Found in lib/nmatrix/blas.rb - About 1 hr to fix

    Method cblas_trmm has 12 arguments (exceeds 4 allowed). Consider refactoring.
    Open

        def cblas_trmm(order, side, uplo, trans_a, diag, m, n, alpha, a, lda, b, ldb)
    Severity: Major
    Found in lib/nmatrix/blas.rb - About 1 hr to fix

      Method cblas_syrk has 11 arguments (exceeds 4 allowed). Consider refactoring.
      Open

          def cblas_syrk(order, uplo, trans, n, k, alpha, a, lda, beta, c, ldc)
      Severity: Major
      Found in lib/nmatrix/blas.rb - About 1 hr to fix

        Method gemv has 11 arguments (exceeds 4 allowed). Consider refactoring.
        Open

            def gemv(a, x, y = nil, alpha = 1.0, beta = 0.0,
             transpose_a = false, m = nil, n = nil, lda = nil,
             incx = nil, incy = nil)
        Severity: Major
        Found in lib/nmatrix/blas.rb - About 1 hr to fix

          Method cblas_herk has 11 arguments (exceeds 4 allowed). Consider refactoring.
          Open

              def cblas_herk(order, uplo, trans, n, k, alpha, a, lda, beta, c, ldc)
          Severity: Major
          Found in lib/nmatrix/blas.rb - About 1 hr to fix

            Method gemm has 33 lines of code (exceeds 25 allowed). Consider refactoring.
            Open

                def gemm(a, b, c = nil, alpha = 1.0, beta = 0.0,
             transpose_a = false, transpose_b = false, m = nil,
             n = nil, k = nil, lda = nil, ldb = nil, ldc = nil)

      raise(ArgumentError, 'Expected dense NMatrices as first two arguments.') \
            Severity: Minor
            Found in lib/nmatrix/blas.rb - About 1 hr to fix

              Method rot has 8 arguments (exceeds 4 allowed). Consider refactoring.
              Open

                  def rot(x, y, c, s, incx = 1, incy = 1, n = nil, in_place=false)
              Severity: Major
              Found in lib/nmatrix/blas.rb - About 1 hr to fix

                Method rot has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
                Open

                    def rot(x, y, c, s, incx = 1, incy = 1, n = nil, in_place=false)
      raise(ArgumentError, 'Expected dense NMatrices as first two arguments.') \
       unless x.is_a?(NMatrix) and y.is_a?(NMatrix) \
       and x.stype == :dense and y.stype == :dense
                Severity: Minor
                Found in lib/nmatrix/blas.rb - 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

                Method rot! has 7 arguments (exceeds 4 allowed). Consider refactoring.
                Open

                    def rot!(x, y, c, s, incx = 1, incy = 1, n = nil)
                Severity: Major
                Found in lib/nmatrix/blas.rb - About 50 mins to fix

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

                      def nrm2(x, incx = 1, n = nil)
      n ||= x.size / incx
      raise(ArgumentError, "Expected dense NMatrix for arg 0") \
       unless x.is_a?(NMatrix)
                  Severity: Minor
                  Found in lib/nmatrix/blas.rb and 1 other location - About 55 mins to fix
                  lib/nmatrix/blas.rb on lines 299..306

                  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 46.

                  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

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

                      def asum(x, incx = 1, n = nil)
      n ||= x.size / incx
      raise(ArgumentError, "Expected dense NMatrix for arg 0") \
       unless x.is_a?(NMatrix)
                  Severity: Minor
                  Found in lib/nmatrix/blas.rb and 1 other location - About 55 mins to fix
                  lib/nmatrix/blas.rb on lines 326..333

                  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 46.

                  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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