Package ghidra.program.model.pcode

Class VarnodeAST

java.lang.Object

ghidra.program.model.pcode.Varnode

ghidra.program.model.pcode.VarnodeAST

public class VarnodeAST
extends Varnode

This type of Varnode is a node in an Abstract Syntax Tree It keeps track of its defining PcodeOp (in-edge) and PcodeOps which use it (out-edges)

Constructor Summary

Constructors

Constructor	Description
VarnodeAST(Address a, int sz, int id)

Method Summary

Modifier and Type	Method	Description
void	addDescendant(PcodeOp op)
void	descendReplace(VarnodeAST vn)	Replace all of parameter vn's references with this
boolean	equals(java.lang.Object o)
PcodeOp	getDef()
java.util.Iterator<PcodeOp>	getDescendants()
HighVariable	getHigh()
short	getMergeGroup()
Address	getPCAddress()	Get the address where this varnode is defined or NO_ADDRESS if this varnode is an input
int	getUniqueId()
int	hashCode()
boolean	isAddrTied()
boolean	isFree()
boolean	isInput()
boolean	isPersistent()
boolean	isUnaffected()
void	removeDescendant(PcodeOp op)
void	setAddrtied(boolean val)
void	setDef(PcodeOp op)
void	setFree(boolean val)
void	setHigh(HighVariable hi)
void	setInput(boolean val)
void	setMergeGroup(short val)
void	setPersistent(boolean val)
void	setUnaffected(boolean val)

Methods inherited from class ghidra.program.model.pcode.Varnode

buildXML, contains, getAddress, getLoneDescend, getOffset, getSize, getSpace, getWordOffset, intersects, intersects, isAddress, isConstant, isHash, isRegister, isUnique, readXML, toString, toString, trim

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

VarnodeAST

public VarnodeAST(Address a,
                  int sz,
                  int id)

Method Detail

isFree

public boolean isFree()

Overrides:

isFree in class Varnode

isInput

public boolean isInput()

Overrides:

isInput in class Varnode

Returns:

is input to a pcode op

isPersistent

public boolean isPersistent()

Overrides:

isPersistent in class Varnode

Returns:

is persistent

isAddrTied

public boolean isAddrTied()

Overrides:

isAddrTied in class Varnode

Returns:

is mapped to an address

isUnaffected

public boolean isUnaffected()

Overrides:

isUnaffected in class Varnode

getDef

public PcodeOp getDef()

Overrides:

getDef in class Varnode

Returns:

get the pcode op this varnode belongs to

getDescendants

public java.util.Iterator<PcodeOp> getDescendants()

Overrides:

getDescendants in class Varnode

Returns:

iterator to all PcodeOp s that take this as input

getPCAddress

public Address getPCAddress()

Description copied from class: Varnode

Get the address where this varnode is defined or NO_ADDRESS if this varnode is an input

Overrides:

getPCAddress in class Varnode

Returns:

the address

getHigh

public HighVariable getHigh()

Overrides:

getHigh in class Varnode

Returns:

the high level variable this varnode represents

getUniqueId

public int getUniqueId()

getMergeGroup

public short getMergeGroup()

Overrides:

getMergeGroup in class Varnode

Returns:

the index of the group, within the high containing this, that are forced merged with this

setAddrtied

public void setAddrtied(boolean val)

setInput

public void setInput(boolean val)

setPersistent

public void setPersistent(boolean val)

setUnaffected

public void setUnaffected(boolean val)

setFree

public void setFree(boolean val)

setDef

public void setDef(PcodeOp op)

setMergeGroup

public void setMergeGroup(short val)

setHigh

public void setHigh(HighVariable hi)

addDescendant

public void addDescendant(PcodeOp op)

removeDescendant

public void removeDescendant(PcodeOp op)

descendReplace

public void descendReplace(VarnodeAST vn)

Replace all of parameter vn's references with this

Parameters:

vn - Varnode whose references will get replaced

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class Varnode

hashCode

public int hashCode()

Overrides:

hashCode in class Varnode