Package edu.umd.cs.findbugs.detect
Class IncompatMask
- java.lang.Object
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- All Implemented Interfaces:
Detector
,Priorities
,org.apache.bcel.classfile.Visitor
public class IncompatMask extends OpcodeStackDetector
Find comparisons involving values computed with bitwise operations whose outcomes are fixed at compile time.- Author:
- Tom Truscott <[email protected]>, Tagir Valeev
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Nested Class Summary
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Nested classes/interfaces inherited from class edu.umd.cs.findbugs.bcel.OpcodeStackDetector
OpcodeStackDetector.WithCustomJumpInfo
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Field Summary
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Fields inherited from class edu.umd.cs.findbugs.bcel.OpcodeStackDetector
stack
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Fields inherited from class edu.umd.cs.findbugs.visitclass.DismantleBytecode
codeBytes, lineNumberTable, M_BR, M_CP, M_INT, M_PAD, M_R, M_UINT
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Fields inherited from interface edu.umd.cs.findbugs.Priorities
EXP_PRIORITY, HIGH_PRIORITY, IGNORE_PRIORITY, LOW_PRIORITY, NORMAL_PRIORITY
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Constructor Summary
Constructors Constructor Description IncompatMask(BugReporter bugReporter)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
afterOpcode(int seen)
Note that stack might be TOP when this method is called.void
sawOpcode(int seen)
By default, this method will not be called when stack is TOP.void
visit(org.apache.bcel.classfile.Code obj)
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Methods inherited from class edu.umd.cs.findbugs.bcel.OpcodeStackDetector
beforeOpcode, getStack, isUsingCustomUserValue, visitCode
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Methods inherited from class edu.umd.cs.findbugs.BytecodeScanningDetector
getClassContext, report, shouldVisitCode, visitClassContext
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Methods inherited from class edu.umd.cs.findbugs.visitclass.DismantleBytecode
areOppositeBranches, atCatchBlock, getBranchFallThrough, getBranchOffset, getBranchTarget, getClassConstantOperand, getClassDescriptorOperand, getCodeByte, getConstantRefOperand, getDefaultSwitchOffset, getDottedClassConstantOperand, getFieldDescriptorOperand, getIntConstant, getLongConstant, getMaxPC, getMethodDescriptorOperand, getNameConstantOperand, getNextCodeByte, getNextOpcode, getNextPC, getOpcode, getPC, getPrevOpcode, getRefConstantOperand, getRefFieldIsStatic, getRegisterOperand, getSigConstantOperand, getStringConstantOperand, getSwitchLabels, getSwitchOffsets, getXClassOperand, getXFieldOperand, getXMethodOperand, isBranch, isMethodCall, isRegisterLoad, isRegisterStore, isRegisterStore, isReturn, isShift, isSwitch, isWideOpcode, printOpCode, sawBranchTo, sawClass, sawDouble, sawField, sawFloat, sawIMethod, sawInt, sawLong, sawMethod, sawRegister, sawString
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Methods inherited from class edu.umd.cs.findbugs.visitclass.AnnotationVisitor
getAnnotationParameterAsString, getAnnotationParameterAsStringArray, visitAnnotation, visitAnnotation, visitParameterAnnotation, visitParameterAnnotation, visitSyntheticParameterAnnotation
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Methods inherited from class edu.umd.cs.findbugs.visitclass.PreorderVisitor
amVisitingMainMethod, asUnsignedByte, doVisitMethod, getClassDescriptor, getClassName, getCode, getConstantPool, getDottedClassName, getDottedFieldSig, getDottedMethodSig, getDottedSuperclassName, getField, getFieldDescriptor, getFieldIsStatic, getFieldName, getFieldSig, getFullyQualifiedFieldName, getFullyQualifiedMethodName, getMethod, getMethodDescriptor, getMethodName, getMethodSig, getMethodVisitOrder, getNumberArguments, getNumberMethodArguments, getPackageName, getSizeOfSurroundingTryBlock, getSizeOfSurroundingTryBlock, getSourceFile, getStringFromIndex, getSuperclassName, getSurroundingCaughtExceptions, getSurroundingCaughtExceptions, getSurroundingTryBlock, getSurroundingTryBlock, getThisClass, getXClass, getXField, getXMethod, hasInterestingClass, hasInterestingMethod, isVisitMethodsInCallOrder, setupVisitorForClass, setVisitMethodsInCallOrder, shouldVisit, toString, visitAfter, visitAfter, visitAnnotationDefault, visitAnnotationEntry, visitBootstrapMethods, visitConstantInvokeDynamic, visitConstantMethodHandle, visitConstantMethodType, visitConstantModule, visitConstantPackage, visitConstantPool, visitEnclosingMethod, visitingField, visitingMethod, visitInnerClasses, visitJavaClass, visitLineNumberTable, visitLocalVariableTable, visitMethodParameters, visitParameterAnnotationEntry, visitStackMap, visitStackMapEntry
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Methods inherited from class edu.umd.cs.findbugs.visitclass.BetterVisitor
clone, report, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit, visitCodeException, visitConstantClass, visitConstantDouble, visitConstantFieldref, visitConstantFloat, visitConstantInteger, visitConstantInterfaceMethodref, visitConstantLong, visitConstantMethodref, visitConstantNameAndType, visitConstantString, visitConstantUtf8, visitConstantValue, visitDeprecated, visitExceptionTable, visitField, visitInnerClass, visitLineNumber, visitLocalVariable, visitLocalVariableTypeTable, visitMethod, visitSignature, visitSourceFile, visitSynthetic, visitUnknown
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Constructor Detail
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IncompatMask
public IncompatMask(BugReporter bugReporter)
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Method Detail
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visit
public void visit(org.apache.bcel.classfile.Code obj)
- Overrides:
visit
in classDismantleBytecode
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sawOpcode
public void sawOpcode(int seen)
Description copied from class:OpcodeStackDetector
By default, this method will not be called when stack is TOP. To change this behavior, override
#beforeOpcode(int)
and change to return true even if stack is TOP.see Using FindBugs for Research to learn lattice and what TOP means.
- Specified by:
sawOpcode
in classOpcodeStackDetector
- See Also:
OpcodeStackDetector.beforeOpcode(int)
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afterOpcode
public void afterOpcode(int seen)
Description copied from class:OpcodeStackDetector
Note that stack might be TOP when this method is called.
- Overrides:
afterOpcode
in classOpcodeStackDetector
- See Also:
OpcodeStackDetector.sawOpcode(int)
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