Package edu.umd.cs.findbugs.detect
Class FindReturnRef
- java.lang.Object
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- All Implemented Interfaces:
Detector
,Priorities
,org.apache.bcel.classfile.Visitor
public class FindReturnRef extends OpcodeStackDetector
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Nested Class Summary
Nested Classes Modifier and Type Class Description private static class
FindReturnRef.CaptureKind
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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 FindReturnRef(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.private FindReturnRef.CaptureKind
getPotentialCapture(OpcodeStack.Item top)
private boolean
isFieldOf(XField field, ClassDescriptor klass)
private boolean
nonPublicFieldOperand()
void
sawOpcode(int seen)
By default, this method will not be called when stack is TOP.void
visit(org.apache.bcel.classfile.Code obj)
void
visit(org.apache.bcel.classfile.JavaClass obj)
void
visit(org.apache.bcel.classfile.Method obj)
void
visitAfter(org.apache.bcel.classfile.JavaClass 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, getSurroundingCaughtExceptionTypes, getSurroundingTryBlock, getSurroundingTryBlock, getThisClass, getXClass, getXField, getXMethod, hasInterestingClass, hasInterestingMethod, isVisitMethodsInCallOrder, setupVisitorForClass, setVisitMethodsInCallOrder, shouldVisit, toString, 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, 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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Field Detail
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check
boolean check
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publicClass
boolean publicClass
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staticMethod
boolean staticMethod
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parameterCount
int parameterCount
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fieldUnderClone
private XField fieldUnderClone
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paramUnderClone
private OpcodeStack.Item paramUnderClone
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fieldCloneUnderCast
private XField fieldCloneUnderCast
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paramCloneUnderCast
private OpcodeStack.Item paramCloneUnderCast
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bufferFieldUnderDuplication
private XField bufferFieldUnderDuplication
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bufferParamUnderDuplication
private OpcodeStack.Item bufferParamUnderDuplication
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fieldUnderWrapToBuffer
private XField fieldUnderWrapToBuffer
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paramUnderWrapToBuffer
private OpcodeStack.Item paramUnderWrapToBuffer
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bufferFieldDuplicates
private java.util.Map<OpcodeStack.Item,XField> bufferFieldDuplicates
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bufferParamDuplicates
private java.util.Map<OpcodeStack.Item,OpcodeStack.Item> bufferParamDuplicates
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arrayFieldsWrappedToBuffers
private java.util.Map<OpcodeStack.Item,XField> arrayFieldsWrappedToBuffers
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arrayParamsWrappedToBuffers
private java.util.Map<OpcodeStack.Item,OpcodeStack.Item> arrayParamsWrappedToBuffers
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arrayFieldClones
private java.util.Map<OpcodeStack.Item,XField> arrayFieldClones
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arrayParamClones
private java.util.Map<OpcodeStack.Item,OpcodeStack.Item> arrayParamClones
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bugAccumulator
private final BugAccumulator bugAccumulator
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BUFFER_CLASS_MATCHER
private static final java.util.regex.Matcher BUFFER_CLASS_MATCHER
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DUPLICATE_METHODS_SIGNATURE_MATCHER
private static final java.util.regex.Matcher DUPLICATE_METHODS_SIGNATURE_MATCHER
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WRAP_METHOD_SIGNATURE_MATCHER
private static final java.util.regex.Matcher WRAP_METHOD_SIGNATURE_MATCHER
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Constructor Detail
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FindReturnRef
public FindReturnRef(BugReporter bugReporter)
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Method Detail
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visit
public void visit(org.apache.bcel.classfile.JavaClass obj)
- Overrides:
visit
in classBetterVisitor
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visitAfter
public void visitAfter(org.apache.bcel.classfile.JavaClass obj)
- Overrides:
visitAfter
in classPreorderVisitor
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visit
public void visit(org.apache.bcel.classfile.Method obj)
- Overrides:
visit
in classBetterVisitor
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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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nonPublicFieldOperand
private boolean nonPublicFieldOperand()
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getPotentialCapture
private FindReturnRef.CaptureKind getPotentialCapture(OpcodeStack.Item top)
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isFieldOf
private boolean isFieldOf(XField field, ClassDescriptor klass)
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