Class SSAAbstractUnaryInstruction

java.lang.Object

com.ibm.wala.ssa.SSAInstruction

com.ibm.wala.ssa.SSAAbstractUnaryInstruction

Direct Known Subclasses:

JavaScriptTypeOfInstruction, PrototypeLookup, SSALoadIndirectInstruction, SSAUnaryOpInstruction

public abstract class SSAAbstractUnaryInstruction
extends SSAInstruction

Nested Class Summary

Nested classes/interfaces inherited from class SSAInstruction

SSAInstruction.IVisitor, SSAInstruction.Visitor

Field Summary

Fields

Modifier and Type	Field	Description
protected final int	result
protected final int	val

Fields inherited from class SSAInstruction

NO_INDEX

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SSAAbstractUnaryInstruction(int iindex, int result, int val)

Method Summary

Modifier and Type	Method	Description
int	getDef()
int	getDef(int i)	Return the ith def
int	getNumberOfDefs()
int	getNumberOfUses()
int	getUse(int j)
boolean	hasDef()	Does this instruction define a normal value, as distinct from a set of exceptions possibly thrown by it (e.g.
int	hashCode()
boolean	isFallThrough()

Methods inherited from class SSAInstruction

copyForSSA, equals, getExceptionTypes, getValueString, iIndex, isPEI, setInstructionIndex, toString, toString, visit

Methods inherited from class Object

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

Field Details

result

protected final int result

val

protected final int val

Constructor Details

SSAAbstractUnaryInstruction

protected SSAAbstractUnaryInstruction(int iindex,
 int result,
 int val)

Method Details

hasDef

public boolean hasDef()

Description copied from class: SSAInstruction

Does this instruction define a normal value, as distinct from a set of exceptions possibly thrown by it (e.g. for invoke instructions).

Overrides:

hasDef in class SSAInstruction

Returns:

true if the instruction does define a proper value.

See Also:

• SSAInstruction.getDef()

getDef

public int getDef()

Overrides:

getDef in class SSAInstruction

getDef

public int getDef(int i)

Description copied from class: SSAInstruction

Return the ith def

Overrides:

getDef in class SSAInstruction

Parameters:

i - number of the def, starting at 0.

getNumberOfDefs

public int getNumberOfDefs()

Overrides:

getNumberOfDefs in class SSAInstruction

See Also:

• SSAInstruction.getNumberOfUses()

getNumberOfUses

public int getNumberOfUses()

Overrides:

getNumberOfUses in class SSAInstruction

getUse

public int getUse(int j)

Overrides:

getUse in class SSAInstruction

Returns:

value number representing the jth use in this instruction. -1 means TOP (i.e., the value doesn't matter)

hashCode

public int hashCode()

Specified by:

hashCode in class SSAInstruction

isFallThrough

public boolean isFallThrough()

Specified by:

isFallThrough in class SSAInstruction

Returns:

true iff this instruction may fall through to the next