Package edu.umd.cs.findbugs.ba

Class TargetEnumeratingVisitor

java.lang.Object
org.apache.bcel.generic.EmptyVisitor
edu.umd.cs.findbugs.ba.TargetEnumeratingVisitor
All Implemented Interfaces:
EdgeTypes, org.apache.bcel.generic.Visitor, org.apache.bcel.generic.VisitorSupportsInvokeDynamic
public class TargetEnumeratingVisitor extends org.apache.bcel.generic.EmptyVisitor implements EdgeTypes
Visitor to find all of the targets of an instruction whose InstructionHandle is given. Note that we don't consider exception edges.
Author:
David Hovemeyer, Chadd Williams

  • Field Summary

    Fields inherited from interface edu.umd.cs.findbugs.ba.EdgeTypes

    BACKEDGE_SOURCE_EDGE, BACKEDGE_TARGET_EDGE, CHECKED_EXCEPTIONS_FLAG, EXIT_EDGE, EXPLICIT_EXCEPTIONS_FLAG, FALL_THROUGH_EDGE, GOTO_EDGE, HANDLED_EXCEPTION_EDGE, IFCMP_EDGE, JSR_EDGE, RET_EDGE, RETURN_EDGE, START_EDGE, SWITCH_DEFAULT_EDGE, SWITCH_EDGE, UNHANDLED_EXCEPTION_EDGE, UNKNOWN_EDGE

  • Constructor Summary

    Constructors
    Constructor
    Description
    TargetEnumeratingVisitor(org.apache.bcel.generic.InstructionHandle handle, org.apache.bcel.generic.ConstantPoolGen constPoolGen)
    Constructor.

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    instructionIsExit()
    Is the analyzed instruction an exit (call to System.exit())?
    boolean
    instructionIsReturn()
    Is the analyzed instruction a method return?
    boolean
    instructionIsThrow()
    Is the analyzed instruction an explicit throw?
    boolean
    isEndOfBasicBlock()
    Is the instruction the end of a basic block?
    Iterator<Target>
    targetIterator()
    Iterate over Target objects representing control flow targets and their edge types.
    void
    visitATHROW(org.apache.bcel.generic.ATHROW ins)
     
    void
    visitGotoInstruction(org.apache.bcel.generic.GotoInstruction ins)
     
    void
    visitIfInstruction(org.apache.bcel.generic.IfInstruction ins)
     
    void
    visitINVOKESTATIC(org.apache.bcel.generic.INVOKESTATIC ins)
     
    void
    visitReturnInstruction(org.apache.bcel.generic.ReturnInstruction ins)
     
    void
    visitSelect(org.apache.bcel.generic.Select ins)
     

    Methods inherited from class org.apache.bcel.generic.EmptyVisitor

    visitAALOAD, visitAASTORE, visitACONST_NULL, visitAllocationInstruction, visitALOAD, visitANEWARRAY, visitARETURN, visitArithmeticInstruction, visitArrayInstruction, visitARRAYLENGTH, visitASTORE, visitBALOAD, visitBASTORE, visitBIPUSH, visitBranchInstruction, visitBREAKPOINT, visitCALOAD, visitCASTORE, visitCHECKCAST, visitConstantPushInstruction, visitConversionInstruction, visitCPInstruction, visitD2F, visitD2I, visitD2L, visitDADD, visitDALOAD, visitDASTORE, visitDCMPG, visitDCMPL, visitDCONST, visitDDIV, visitDLOAD, visitDMUL, visitDNEG, visitDREM, visitDRETURN, visitDSTORE, visitDSUB, visitDUP, visitDUP_X1, visitDUP_X2, visitDUP2, visitDUP2_X1, visitDUP2_X2, visitExceptionThrower, visitF2D, visitF2I, visitF2L, visitFADD, visitFALOAD, visitFASTORE, visitFCMPG, visitFCMPL, visitFCONST, visitFDIV, visitFieldInstruction, visitFieldOrMethod, visitFLOAD, visitFMUL, visitFNEG, visitFREM, visitFRETURN, visitFSTORE, visitFSUB, visitGETFIELD, visitGETSTATIC, visitGOTO, visitGOTO_W, visitI2B, visitI2C, visitI2D, visitI2F, visitI2L, visitI2S, visitIADD, visitIALOAD, visitIAND, visitIASTORE, visitICONST, visitIDIV, visitIF_ACMPEQ, visitIF_ACMPNE, visitIF_ICMPEQ, visitIF_ICMPGE, visitIF_ICMPGT, visitIF_ICMPLE, visitIF_ICMPLT, visitIF_ICMPNE, visitIFEQ, visitIFGE, visitIFGT, visitIFLE, visitIFLT, visitIFNE, visitIFNONNULL, visitIFNULL, visitIINC, visitILOAD, visitIMPDEP1, visitIMPDEP2, visitIMUL, visitINEG, visitINSTANCEOF, visitINVOKEDYNAMIC, visitInvokeInstruction, visitINVOKEINTERFACE, visitINVOKESPECIAL, visitINVOKEVIRTUAL, visitIOR, visitIREM, visitIRETURN, visitISHL, visitISHR, visitISTORE, visitISUB, visitIUSHR, visitIXOR, visitJSR, visitJSR_W, visitJsrInstruction, visitL2D, visitL2F, visitL2I, visitLADD, visitLALOAD, visitLAND, visitLASTORE, visitLCMP, visitLCONST, visitLDC, visitLDC2_W, visitLDIV, visitLLOAD, visitLMUL, visitLNEG, visitLoadClass, visitLoadInstruction, visitLocalVariableInstruction, visitLOOKUPSWITCH, visitLOR, visitLREM, visitLRETURN, visitLSHL, visitLSHR, visitLSTORE, visitLSUB, visitLUSHR, visitLXOR, visitMONITORENTER, visitMONITOREXIT, visitMULTIANEWARRAY, visitNEW, visitNEWARRAY, visitNOP, visitPOP, visitPOP2, visitPopInstruction, visitPushInstruction, visitPUTFIELD, visitPUTSTATIC, visitRET, visitRETURN, visitSALOAD, visitSASTORE, visitSIPUSH, visitStackConsumer, visitStackInstruction, visitStackProducer, visitStoreInstruction, visitSWAP, visitTABLESWITCH, visitTypedInstruction, visitUnconditionalBranch, visitVariableLengthInstruction

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • TargetEnumeratingVisitor

      public TargetEnumeratingVisitor(org.apache.bcel.generic.InstructionHandle handle, org.apache.bcel.generic.ConstantPoolGen constPoolGen)
      Constructor.
      Parameters:
      handle - the handle of the instruction whose targets should be enumerated
      constPoolGen - the ConstantPoolGen object for the class

  • Method Details

    • isEndOfBasicBlock

      public boolean isEndOfBasicBlock()
      Is the instruction the end of a basic block?

    • instructionIsReturn

      public boolean instructionIsReturn()
      Is the analyzed instruction a method return?

    • instructionIsThrow

      public boolean instructionIsThrow()
      Is the analyzed instruction an explicit throw?

    • instructionIsExit

      public boolean instructionIsExit()
      Is the analyzed instruction an exit (call to System.exit())?

    • targetIterator

      public Iterator<Target> targetIterator()
      Iterate over Target objects representing control flow targets and their edge types.

    • visitGotoInstruction

      public void visitGotoInstruction(org.apache.bcel.generic.GotoInstruction ins)
      Specified by:
      visitGotoInstruction in interface org.apache.bcel.generic.Visitor
      Overrides:
      visitGotoInstruction in class org.apache.bcel.generic.EmptyVisitor

    • visitIfInstruction

      public void visitIfInstruction(org.apache.bcel.generic.IfInstruction ins)
      Specified by:
      visitIfInstruction in interface org.apache.bcel.generic.Visitor
      Overrides:
      visitIfInstruction in class org.apache.bcel.generic.EmptyVisitor

    • visitSelect

      public void visitSelect(org.apache.bcel.generic.Select ins)
      Specified by:
      visitSelect in interface org.apache.bcel.generic.Visitor
      Overrides:
      visitSelect in class org.apache.bcel.generic.EmptyVisitor

    • visitReturnInstruction

      public void visitReturnInstruction(org.apache.bcel.generic.ReturnInstruction ins)
      Specified by:
      visitReturnInstruction in interface org.apache.bcel.generic.Visitor
      Overrides:
      visitReturnInstruction in class org.apache.bcel.generic.EmptyVisitor

    • visitATHROW

      public void visitATHROW(org.apache.bcel.generic.ATHROW ins)
      Specified by:
      visitATHROW in interface org.apache.bcel.generic.Visitor
      Overrides:
      visitATHROW in class org.apache.bcel.generic.EmptyVisitor

    • visitINVOKESTATIC

      public void visitINVOKESTATIC(org.apache.bcel.generic.INVOKESTATIC ins)
      Specified by:
      visitINVOKESTATIC in interface org.apache.bcel.generic.Visitor
      Overrides:
      visitINVOKESTATIC in class org.apache.bcel.generic.EmptyVisitor