hackedteam/core-blackberry

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bb-tools/proguard4.7/src/proguard/optimize/peephole/InstructionSequenceReplacer.java

Summary

Maintainability
D
1 day
Test Coverage

Method visitAnyInstruction has a Cognitive Complexity of 18 (exceeds 5 allowed). Consider refactoring.
Open

    public void visitAnyInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, Instruction instruction)
    {
        // Reset the instruction sequence matcher if the instruction is a branch
        // target or if it has already been modified.
        if (branchTargetFinder.isTarget(offset) ||

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

File InstructionSequenceReplacer.java has 262 lines of code (exceeds 250 allowed). Consider refactoring.
Open

/*
 * ProGuard -- shrinking, optimization, obfuscation, and preverification
 *             of Java bytecode.
 *
 * Copyright (c) 2002-2011 Eric Lafortune (eric@graphics.cornell.edu)

    Method visitAnyInstruction has 43 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

        public void visitAnyInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, Instruction instruction)
        {
            // Reset the instruction sequence matcher if the instruction is a branch
            // target or if it has already been modified.
            if (branchTargetFinder.isTarget(offset) ||

      Method argumentAsString has 32 lines of code (exceeds 25 allowed). Consider refactoring.
      Open

              private String argumentAsString(ProgramClass programClass,
                                              int          valueType,
                                              int          argument)
              {
                  switch (valueType)

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

                public void visitVariableInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, VariableInstruction variableInstruction)

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

                  public void visitConstantInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, ConstantInstruction constantInstruction)

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

                    public void visitSimpleInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, SimpleInstruction simpleInstruction)

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

                      public void visitBranchInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, BranchInstruction branchInstruction)

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

                    public void visitAnyInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, Instruction instruction)

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

                          public void visitLookUpSwitchInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, LookUpSwitchInstruction lookUpSwitchInstruction)

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

                            public void visitTableSwitchInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, TableSwitchInstruction tableSwitchInstruction)

                      Identical blocks of code found in 4 locations. Consider refactoring.
                      Open

                                      case INT_STRING:
                                          return Integer.toString(instructionSequenceMatcher.wasConstant(argument) ?
                                              ((IntegerConstant)(programClass.getConstant(instructionSequenceMatcher.matchedConstantIndex(argument)))).getValue() :
                                              instructionSequenceMatcher.matchedArgument(argument));
                      bb-tools/proguard4.7/src/proguard/optimize/peephole/InstructionSequenceReplacer.java on lines 396..399
                      bb-tools/proguard4.7/src/proguard/optimize/peephole/InstructionSequenceReplacer.java on lines 401..404
                      bb-tools/proguard4.7/src/proguard/optimize/peephole/InstructionSequenceReplacer.java on lines 406..409

                      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 42.

                      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 4 locations. Consider refactoring.
                      Open

                                      case DOUBLE_STRING:
                                          return Double.toString(instructionSequenceMatcher.wasConstant(argument) ?
                                              ((DoubleConstant)(programClass.getConstant(instructionSequenceMatcher.matchedConstantIndex(argument)))).getValue() :
                                              instructionSequenceMatcher.matchedArgument(argument));
                      bb-tools/proguard4.7/src/proguard/optimize/peephole/InstructionSequenceReplacer.java on lines 391..394
                      bb-tools/proguard4.7/src/proguard/optimize/peephole/InstructionSequenceReplacer.java on lines 396..399
                      bb-tools/proguard4.7/src/proguard/optimize/peephole/InstructionSequenceReplacer.java on lines 401..404

                      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 42.

                      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 4 locations. Consider refactoring.
                      Open

                                      case LONG_STRING:
                                          return Long.toString(instructionSequenceMatcher.wasConstant(argument) ?
                                              ((LongConstant)(programClass.getConstant(instructionSequenceMatcher.matchedConstantIndex(argument)))).getValue() :
                                              instructionSequenceMatcher.matchedArgument(argument));
                      bb-tools/proguard4.7/src/proguard/optimize/peephole/InstructionSequenceReplacer.java on lines 391..394
                      bb-tools/proguard4.7/src/proguard/optimize/peephole/InstructionSequenceReplacer.java on lines 401..404
                      bb-tools/proguard4.7/src/proguard/optimize/peephole/InstructionSequenceReplacer.java on lines 406..409

                      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 42.

                      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 4 locations. Consider refactoring.
                      Open

                                      case FLOAT_STRING:
                                          return Float.toString(instructionSequenceMatcher.wasConstant(argument) ?
                                              ((FloatConstant)(programClass.getConstant(instructionSequenceMatcher.matchedConstantIndex(argument)))).getValue() :
                                              instructionSequenceMatcher.matchedArgument(argument));
                      bb-tools/proguard4.7/src/proguard/optimize/peephole/InstructionSequenceReplacer.java on lines 391..394
                      bb-tools/proguard4.7/src/proguard/optimize/peephole/InstructionSequenceReplacer.java on lines 396..399
                      bb-tools/proguard4.7/src/proguard/optimize/peephole/InstructionSequenceReplacer.java on lines 406..409

                      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 42.

                      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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