Java Doc for Instruction.java in  » Code-Analyzer » javapathfinder » gov » nasa » jpf » jvm » bytecode » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Code Analyzer » javapathfinder » gov.nasa.jpf.jvm.bytecode 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   gov.nasa.jpf.jvm.bytecode.Instruction

All known Subclasses:   gov.nasa.jpf.jvm.bytecode.DSUB,  gov.nasa.jpf.jvm.bytecode.FREM,  gov.nasa.jpf.jvm.bytecode.F2I,  gov.nasa.jpf.jvm.bytecode.DNEG,  gov.nasa.jpf.jvm.bytecode.LocalVariableInstruction,  gov.nasa.jpf.jvm.bytecode.LSUB,  gov.nasa.jpf.jvm.bytecode.I2L,  gov.nasa.jpf.jvm.bytecode.ATHROW,  gov.nasa.jpf.jvm.bytecode.LDC2_W,  gov.nasa.jpf.jvm.bytecode.ArrayInstruction,  gov.nasa.jpf.jvm.bytecode.LOR,  gov.nasa.jpf.jvm.bytecode.IfInstruction,  gov.nasa.jpf.jvm.bytecode.L2D,  gov.nasa.jpf.jvm.bytecode.ISHR,  gov.nasa.jpf.jvm.bytecode.SIPUSH,  gov.nasa.jpf.jvm.bytecode.ReturnInstruction,  gov.nasa.jpf.jvm.bytecode.SWAP,  gov.nasa.jpf.jvm.bytecode.ARRAYLENGTH,  gov.nasa.jpf.jvm.bytecode.I2D,  gov.nasa.jpf.jvm.bytecode.LNEG,  gov.nasa.jpf.jvm.bytecode.FSUB,  gov.nasa.jpf.jvm.bytecode.JSR_W,  gov.nasa.jpf.jvm.bytecode.LCMP,  gov.nasa.jpf.jvm.bytecode.DUP_X2,  gov.nasa.jpf.jvm.bytecode.DDIV,  gov.nasa.jpf.jvm.bytecode.NEWARRAY,  gov.nasa.jpf.jvm.bytecode.DCONST,  gov.nasa.jpf.jvm.bytecode.DCMPG,  gov.nasa.jpf.jvm.bytecode.ACONST_NULL,  gov.nasa.jpf.jvm.bytecode.BIPUSH,  gov.nasa.jpf.jvm.bytecode.ISUB,  gov.nasa.jpf.jvm.bytecode.FDIV,  gov.nasa.jpf.jvm.bytecode.LSHL,  gov.nasa.jpf.jvm.bytecode.NOP,  gov.nasa.jpf.jvm.bytecode.MULTIANEWARRAY,  gov.nasa.jpf.jvm.bytecode.DUP2_X1,  gov.nasa.jpf.jvm.bytecode.I2C,  gov.nasa.jpf.jvm.bytecode.F2L,  gov.nasa.jpf.jvm.bytecode.CHECKCAST,  gov.nasa.jpf.jvm.bytecode.ISHL,  gov.nasa.jpf.jvm.bytecode.LDC_W,  gov.nasa.jpf.jvm.bytecode.I2S,  gov.nasa.jpf.jvm.bytecode.NEW,  gov.nasa.jpf.jvm.bytecode.LAND,  gov.nasa.jpf.jvm.bytecode.MONITOREXIT,  gov.nasa.jpf.jvm.bytecode.ANEWARRAY,  gov.nasa.jpf.jvm.bytecode.IXOR,  gov.nasa.jpf.jvm.bytecode.LREM,  gov.nasa.jpf.jvm.bytecode.DADD,  gov.nasa.jpf.jvm.bytecode.InvokeInstruction,  gov.nasa.jpf.jvm.bytecode.LADD,  gov.nasa.jpf.jvm.bytecode.IREM,  gov.nasa.jpf.jvm.bytecode.INSTANCEOF,  gov.nasa.jpf.jvm.bytecode.JSR,  gov.nasa.jpf.jvm.bytecode.ICONST,  gov.nasa.jpf.jvm.bytecode.I2F,  gov.nasa.jpf.jvm.bytecode.FCMPG,  gov.nasa.jpf.jvm.bytecode.IINC,  gov.nasa.jpf.jvm.bytecode.DUP_X1,  gov.nasa.jpf.jvm.bytecode.DUP2_X2,  gov.nasa.jpf.jvm.bytecode.LDIV,  gov.nasa.jpf.jvm.bytecode.D2L,  gov.nasa.jpf.jvm.bytecode.POP2,  gov.nasa.jpf.jvm.bytecode.D2F,  gov.nasa.jpf.jvm.bytecode.LMUL,  gov.nasa.jpf.jvm.bytecode.INEG,  gov.nasa.jpf.jvm.bytecode.RET,  gov.nasa.jpf.jvm.bytecode.D2I,  gov.nasa.jpf.jvm.bytecode.DUP2,  gov.nasa.jpf.jvm.bytecode.FCMPL,  gov.nasa.jpf.jvm.bytecode.LUSHR,  gov.nasa.jpf.jvm.bytecode.IOR,  gov.nasa.jpf.jvm.bytecode.L2F,  gov.nasa.jpf.jvm.bytecode.F2D,  gov.nasa.jpf.jvm.bytecode.POP,  gov.nasa.jpf.jvm.bytecode.IMUL,  gov.nasa.jpf.jvm.bytecode.LSHR,  gov.nasa.jpf.jvm.bytecode.IUSHR,  gov.nasa.jpf.jvm.bytecode.IADD,  gov.nasa.jpf.jvm.bytecode.FNEG,  gov.nasa.jpf.jvm.bytecode.DMUL,  gov.nasa.jpf.jvm.bytecode.DREM,  gov.nasa.jpf.jvm.bytecode.LOOKUPSWITCH,  gov.nasa.jpf.jvm.bytecode.MONITORENTER,  gov.nasa.jpf.jvm.bytecode.FADD,  gov.nasa.jpf.jvm.bytecode.L2I,  gov.nasa.jpf.jvm.bytecode.LDC,  gov.nasa.jpf.jvm.bytecode.LXOR,  gov.nasa.jpf.jvm.bytecode.I2B,  gov.nasa.jpf.jvm.bytecode.IDIV,  gov.nasa.jpf.jvm.bytecode.FieldInstruction,  gov.nasa.jpf.jvm.bytecode.DCMPL,  gov.nasa.jpf.jvm.bytecode.TABLESWITCH,  gov.nasa.jpf.jvm.bytecode.GOTO,  gov.nasa.jpf.jvm.bytecode.DUP,  gov.nasa.jpf.jvm.bytecode.FCONST,  gov.nasa.jpf.jvm.bytecode.LCONST,  gov.nasa.jpf.jvm.bytecode.FMUL,  gov.nasa.jpf.jvm.bytecode.IAND,
Instruction
abstract public class Instruction (Code)
common root of all JPF bytecode instruction classes


Field Summary
protected static  ListUnimplemented
    
protected  StringasString
    
protected  booleanisObservable
    
protected  MethodInfomi
    
protected  intoffset
    
protected  intposition
    


Method Summary
public  booleanMethodexamine(ThreadInfo th)
    
public static  Instructioncreate(InstructionHandle h, int o, MethodInfo m, ConstantPool cp)
    
public  booleanexamine(SystemState ss, KernelState ks, ThreadInfo th)
    
public  booleanexamineAbstraction(SystemState ss, KernelState ks, ThreadInfo th)
    
abstract public  Instructionexecute(SystemState ss, KernelState ks, ThreadInfo th)
    
abstract public  intgetByteCode()
    
public  MethodInfogetMethod()
    
public  StringgetMnemonic()
    
public  InstructiongetNext()
    
 InstructiongetNext(ThreadInfo th)
     this is returning the next Instruction to execute, to be called after we executed ourselves. Be aware of that we might have had exceptions caused by our execution, i.e.
public  intgetOffset()
    
public  intgetPosition()
    
public  InstructiongetPrev()
    
public  StringgetSourceLocation()
    
protected  voidinit(InstructionHandle h, int o, MethodInfo m, ConstantPool cp)
    
public  booleanisBackJump()
    
public  booleanisDeterministic(SystemState ss, KernelState ks, ThreadInfo ti)
    
public  booleanisExecutable(SystemState ss, KernelState ks, ThreadInfo th)
    
public  booleanisFirstInstruction()
    
public  booleanisObservable()
    
public  booleanisSchedulingRelevant(SystemState ss, KernelState ks, ThreadInfo ti)
    
public  booleanisVisible(SystemState ss, KernelState ks, ThreadInfo th)
    
public  voidsetContext(String className, String methodName, int lineNumber, int offset)
    
public  voidsetObservable()
    
abstract protected  voidsetPeer(org.apache.bcel.generic.Instruction i, ConstantPool cp)
    
public  StringtoString()
    

Field Detail
Unimplemented
protected static List Unimplemented(Code)



asString
protected String asString(Code)



isObservable
protected boolean isObservable(Code)



mi
protected MethodInfo mi(Code)
NOTE - this is the method this instruction belongs to! <2do> pcm - Seems nobody has noticed this gets shadowed all over the place by local vars with a different meaning (InvokeInstruction)



offset
protected int offset(Code)



position
protected int position(Code)





Method Detail
Methodexamine
public boolean Methodexamine(ThreadInfo th)(Code)



create
public static Instruction create(InstructionHandle h, int o, MethodInfo m, ConstantPool cp)(Code)



examine
public boolean examine(SystemState ss, KernelState ks, ThreadInfo th)(Code)



examineAbstraction
public boolean examineAbstraction(SystemState ss, KernelState ks, ThreadInfo th)(Code)



execute
abstract public Instruction execute(SystemState ss, KernelState ks, ThreadInfo th)(Code)



getByteCode
abstract public int getByteCode()(Code)



getMethod
public MethodInfo getMethod()(Code)



getMnemonic
public String getMnemonic()(Code)



getNext
public Instruction getNext()(Code)



getNext
Instruction getNext(ThreadInfo th)(Code)
this is returning the next Instruction to execute, to be called after we executed ourselves. Be aware of that we might have had exceptions caused by our execution, i.e. we can't simply assume it's the next insn following us (we have to acquire the 'current' insn after our exec from the ThreadInfo). To make it even more interesting, the ThreadInfo might return null because we might have run into a System.exit, which purges all stacks. It's questionable if it's the right way to handle this by just returning our own successor, and rely on ThreadInfo.executeXXMethod to catch this, but it seems to be the smallest change pcm - this is hackish control in case of System.exit



getOffset
public int getOffset()(Code)



getPosition
public int getPosition()(Code)



getPrev
public Instruction getPrev()(Code)



getSourceLocation
public String getSourceLocation()(Code)



init
protected void init(InstructionHandle h, int o, MethodInfo m, ConstantPool cp)(Code)



isBackJump
public boolean isBackJump()(Code)
answer if this is a potential loop closing jump



isDeterministic
public boolean isDeterministic(SystemState ss, KernelState ks, ThreadInfo ti)(Code)



isExecutable
public boolean isExecutable(SystemState ss, KernelState ks, ThreadInfo th)(Code)



isFirstInstruction
public boolean isFirstInstruction()(Code)



isObservable
public boolean isObservable()(Code)



isSchedulingRelevant
public boolean isSchedulingRelevant(SystemState ss, KernelState ks, ThreadInfo ti)(Code)



isVisible
public boolean isVisible(SystemState ss, KernelState ks, ThreadInfo th)(Code)



setContext
public void setContext(String className, String methodName, int lineNumber, int offset)(Code)



setObservable
public void setObservable()(Code)



setPeer
abstract protected void setPeer(org.apache.bcel.generic.Instruction i, ConstantPool cp)(Code)



toString
public String toString()(Code)



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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