Package com.tonic.analysis.ssa.ir

Class FieldAccessInstruction

java.lang.Object

com.tonic.analysis.ssa.ir.IRInstruction

com.tonic.analysis.ssa.ir.FieldAccessInstruction

public class FieldAccessInstruction
extends IRInstruction

A static or instance field load or store, distinguished by its AccessMode.

Method Summary

Modifier and Type	Method	Description
<T> T	accept(IRVisitor<T> visitor)	Accepts a visitor for this instruction.
IRInstruction	copyWithNewOperands(SSAValue newResult, List<Value> newOperands)	Creates a copy of this instruction with new result and operands.
static FieldAccessInstruction	createLoad(SSAValue result, String owner, String name, String descriptor, Value objectRef)	Creates an instance field load.
static FieldAccessInstruction	createStaticLoad(SSAValue result, String owner, String name, String descriptor)	Creates a static field load.
static FieldAccessInstruction	createStaticStore(String owner, String name, String descriptor, Value value)	Creates a static field store.
static FieldAccessInstruction	createStore(String owner, String name, String descriptor, Value objectRef, Value value)	Creates an instance field store.
String	getDescriptor()
AccessMode	getMode()
String	getName()
Value	getObjectRef()
List<Value>	getOperands()	Gets the operands used by this instruction.
String	getOwner()
Value	getValue()
boolean	isLoad()
boolean	isStatic()
boolean	isStore()
void	replaceOperand(Value oldValue, Value newValue)	Replaces an operand value with a new value.
String	toString()

Methods inherited from class com.tonic.analysis.ssa.ir.IRInstruction

equals, getBlock, getBytecodeOffset, getId, getResult, getResultType, hashCode, hasResult, isPhi, isTerminator, replaceTarget, resetIdCounter, setBlock, setBytecodeOffset, setResult

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Method Detail

createLoad

public static FieldAccessInstruction createLoad(SSAValue result,
                                                String owner,
                                                String name,
                                                String descriptor,
                                                Value objectRef)

Creates an instance field load.

Parameters:

result - the SSA value receiving the field value

owner - the internal name of the declaring class

name - the field name

descriptor - the field descriptor

objectRef - the receiver object

Returns:

the load instruction

createStaticLoad

public static FieldAccessInstruction createStaticLoad(SSAValue result,
                                                      String owner,
                                                      String name,
                                                      String descriptor)

Creates a static field load.

Parameters:

result - the SSA value receiving the field value

owner - the internal name of the declaring class

name - the field name

descriptor - the field descriptor

Returns:

the load instruction

createStore

public static FieldAccessInstruction createStore(String owner,
                                                 String name,
                                                 String descriptor,
                                                 Value objectRef,
                                                 Value value)

Creates an instance field store.

Parameters:

owner - the internal name of the declaring class

name - the field name

descriptor - the field descriptor

objectRef - the receiver object

value - the value to store

Returns:

the store instruction

createStaticStore

public static FieldAccessInstruction createStaticStore(String owner,
                                                       String name,
                                                       String descriptor,
                                                       Value value)

Creates a static field store.

Parameters:

owner - the internal name of the declaring class

name - the field name

descriptor - the field descriptor

value - the value to store

Returns:

the store instruction

getMode

public AccessMode getMode()

Returns:

the mode

getOwner

public String getOwner()

Returns:

the owner

getName

public String getName()

Returns:

the name

getDescriptor

public String getDescriptor()

Returns:

the descriptor

isStatic

public boolean isStatic()

Returns:

whether static

getObjectRef

public Value getObjectRef()

Returns:

the object ref

getValue

public Value getValue()

Returns:

the value

isLoad

public boolean isLoad()

Returns:

true if this access is a load

isStore

public boolean isStore()

Returns:

true if this access is a store

getOperands

public List<Value> getOperands()

Description copied from class: IRInstruction

Gets the operands used by this instruction.

Specified by:

getOperands in class IRInstruction

Returns:

list of operand values

replaceOperand

public void replaceOperand(Value oldValue,
                           Value newValue)

Description copied from class: IRInstruction

Replaces an operand value with a new value.

Specified by:

replaceOperand in class IRInstruction

Parameters:

oldValue - the value to replace

newValue - the replacement value

accept

public <T> T accept(IRVisitor<T> visitor)

Description copied from class: IRInstruction

Accepts a visitor for this instruction.

Specified by:

accept in class IRInstruction

Type Parameters:

T - the return type

Parameters:

visitor - the visitor to accept

Returns:

the visitor result

copyWithNewOperands

public IRInstruction copyWithNewOperands(SSAValue newResult,
                                         List<Value> newOperands)

Description copied from class: IRInstruction

Creates a copy of this instruction with new result and operands.

Overrides:

copyWithNewOperands in class IRInstruction

Parameters:

newResult - the new result value (may be null)

newOperands - the new operand values

Returns:

a copy of this instruction, or null if copying not supported

toString

public String toString()

Overrides:

toString in class Object