deeplearning4j/deeplearning4j

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nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/autodiff/samediff/transform/GraphTransformUtil.java

Summary

Maintainability
D
2 days
Test Coverage

Method replaceSubgraphsMatching has a Cognitive Complexity of 80 (exceeds 5 allowed). Consider refactoring.
Open

    public static SameDiff replaceSubgraphsMatching(@NonNull SameDiff sd, @NonNull SubGraphPredicate p, @NonNull SubGraphProcessor processor) {
        //Make a copy so that if the transform fails part way through, we don't leave user with broken graph
        sd = sd.dup();

        List<SubGraph> subgraphs = getSubgraphsMatching(sd, p);

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 replaceSubgraphsMatching has 83 lines of code (exceeds 25 allowed). Consider refactoring.
Open

    public static SameDiff replaceSubgraphsMatching(@NonNull SameDiff sd, @NonNull SubGraphPredicate p, @NonNull SubGraphProcessor processor) {
        //Make a copy so that if the transform fails part way through, we don't leave user with broken graph
        sd = sd.dup();

        List<SubGraph> subgraphs = getSubgraphsMatching(sd, p);

    Avoid deeply nested control flow statements.
    Open

                            if (!allSubGraphFns.contains(df)) {
                                newInputsForOps.add(s);
                            }

      Avoid deeply nested control flow statements.
      Open

                              while ((idx = inputsToOp.indexOf(oldOutVarName)) >= 0) {
                                  //Previous Op.inputs = {oldVarName, ...} - now {newVarName, ...}
                                  inputsToOp.set(idx, newOutVarName);
                              }

        Avoid deeply nested control flow statements.
        Open

                                if (allSubGraphFns.contains(df)) {
                                    newInputsForOp.remove(opName);
                                }

          Avoid deeply nested control flow statements.
          Open

                                  while ((idx = controlDeps.indexOf(oldOutVarName)) >= 0) {
                                      //Previous Op.inputs = {oldVarName, ...} - now {newVarName, ...}
                                      controlDeps.set(idx, newOutVarName);
                                  }

            Avoid deeply nested control flow statements.
            Open

                                    while ((idx = cds.indexOf(oldOutVarName)) > 0) {
                                        cds.set(idx, newOutVarName);
                                    }

              Avoid deeply nested control flow statements.
              Open

                                      while ((idx = cds.indexOf(oldOutVarName)) > 0) {
                                          cds.set(idx, newOutVarName);
                                      }

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

                                    if (v.getControlDeps() != null) {
                                        List<String> cds = v.getControlDeps();
                                        //Control dependency oldOutput -> v exists, replace it
                                        int idx;
                                        while ((idx = cds.indexOf(oldOutVarName)) > 0) {
                nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/autodiff/samediff/transform/GraphTransformUtil.java on lines 91..97

                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 58.

                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

                                    if (v.getControlDepsForVar() != null) {
                                        List<String> cds = v.getControlDepsForVar();
                                        int idx;
                                        while ((idx = cds.indexOf(oldOutVarName)) > 0) {
                                            cds.set(idx, newOutVarName);
                nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/autodiff/samediff/transform/GraphTransformUtil.java on lines 99..106

                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 58.

                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

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

                                    if (inputsToOp != null) {
                                        int idx;
                                        while ((idx = inputsToOp.indexOf(oldOutVarName)) >= 0) {
                                            //Previous Op.inputs = {oldVarName, ...} - now {newVarName, ...}
                                            inputsToOp.set(idx, newOutVarName);
                nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/autodiff/samediff/transform/GraphTransformUtil.java on lines 121..127

                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

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

                                    if (controlDeps != null) {
                                        int idx;
                                        while ((idx = controlDeps.indexOf(oldOutVarName)) >= 0) {
                                            //Previous Op.inputs = {oldVarName, ...} - now {newVarName, ...}
                                            controlDeps.set(idx, newOutVarName);
                nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/autodiff/samediff/transform/GraphTransformUtil.java on lines 111..117

                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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