gov.nasa.jpf.jvm.bytecode

Class LDC2_W

java.lang.Object

gov.nasa.jpf.vm.Instruction

gov.nasa.jpf.jvm.JVMInstruction

gov.nasa.jpf.jvm.bytecode.LDC2_W

All Implemented Interfaces:

InstructionVisitorAcceptor, Cloneable

public class LDC2_W
extends JVMInstruction

Push long or double from runtime constant pool (wide index) ... => ..., value

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LDC2_W.Type

Field Summary

Fields

Modifier and Type	Field and Description
protected LDC2_W.Type	type
protected long	value

Fields inherited from class gov.nasa.jpf.vm.Instruction

attr, insnIndex, mi, position

Constructor Summary

Constructors

Constructor and Description
LDC2_W(double d)
LDC2_W(long l)

Method Summary

Methods

Modifier and Type	Method and Description
void	accept(InstructionVisitor insVisitor)
Instruction	execute(ThreadInfo ti) this is the real workhorse returns next instruction to enter in this thread <2do> it's unfortunate we roll every side effect into this method, because it diminishes the value of the 'executeInstruction' notification: all insns that require some sort of late binding (InvokeVirtual, GetField, ..) are not yet fully analyzable (e.g.
int	getByteCode()
double	getDoubleValue()
int	getLength() return the length in bytes of this instruction.
LDC2_W.Type	getType()
long	getValue()

Methods inherited from class gov.nasa.jpf.vm.Instruction

addAttr, attrIterator, attrIterator, cleanupTransients, getAttr, getAttr, getFileLocation, getFilePos, getInstructionIndex, getLineNumber, getMethodInfo, getMnemonic, getNext, getNext, getNextAttr, getPosition, getPrev, getSourceLine, getSourceLocation, getSourceOrLocation, hasAttr, hasAttr, init, isBackJump, isCompleted, isExtendedInstruction, isFirstInstruction, isSchedulingRelevant, removeAttr, replaceAttr, requiresClinitExecution, setAttr, setContext, setLocation, setMethodInfo, toString, typeSafeClone

Methods inherited from class java.lang.Object

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

Field Detail

type

protected LDC2_W.Type type

value

protected long value

Constructor Detail

LDC2_W

public LDC2_W(long l)

LDC2_W

public LDC2_W(double d)

Method Detail

execute

public Instruction execute(ThreadInfo ti)

Description copied from class: Instruction

this is the real workhorse returns next instruction to enter in this thread <2do> it's unfortunate we roll every side effect into this method, because it diminishes the value of the 'executeInstruction' notification: all insns that require some sort of late binding (InvokeVirtual, GetField, ..) are not yet fully analyzable (e.g. the callee of InvokeVirtuals is not known yet), putting the burden of duplicating the related code of enter() in the listener. It would be better if we factor this 'prepareExecution' out of enter()

Specified by:

execute in class Instruction

getLength

public int getLength()

Description copied from class: Instruction

return the length in bytes of this instruction. override if this is not 1

Overrides:

getLength in class Instruction

getByteCode

public int getByteCode()

Specified by:

getByteCode in class Instruction

getType

public LDC2_W.Type getType()

getDoubleValue

public double getDoubleValue()

getValue

public long getValue()

accept

public void accept(InstructionVisitor insVisitor)