Class SSAAbstractThrowInstruction

java.lang.Object

com.ibm.wala.ssa.SSAInstruction

com.ibm.wala.ssa.SSAAbstractThrowInstruction

Direct Known Subclasses:

SSAThrowInstruction

public abstract class SSAAbstractThrowInstruction
extends SSAInstruction

An instruction which unconditionally throws an exception

Nested Class Summary

Nested classes/interfaces inherited from class SSAInstruction

SSAInstruction.IVisitor, SSAInstruction.Visitor

Modifier and Type	Class	Description
static interface	SSAInstruction.IVisitor	This interface is used by Instruction.visit to dispatch based on the instruction type.
static class	SSAInstruction.Visitor	A base visitor implementation that does nothing.

Field Summary

Fields inherited from class SSAInstruction

NO_INDEX

Modifier and Type	Field	Description
static final int	NO_INDEX

Constructor Summary

Constructors

Constructor	Description
SSAAbstractThrowInstruction(int iindex, int exception)

Method Summary

Modifier and Type	Method	Description
int	getException()
int	getNumberOfUses()
int	getUse(int j)
int	hashCode()
boolean	isFallThrough()
boolean	isPEI()
String	toString(SymbolTable symbolTable)

Methods inherited from class SSAInstruction

copyForSSA, equals, getDef, getDef, getExceptionTypes, getNumberOfDefs, getValueString, hasDef, iIndex, setInstructionIndex, toString, visit

Modifier and Type	Method	Description
abstract SSAInstruction	copyForSSA(SSAInstructionFactory insts, int[] defs, int[] uses)	This method is meant to be used during SSA conversion for an IR that is not in SSA form.
final boolean	equals(Object obj)	We assume these instructions are canonical and managed by a governing IR object.
int	getDef()
int	getDef(int i)	Return the ith def
Collection<TypeReference>	getExceptionTypes()	This method should never return null.
int	getNumberOfDefs()
protected String	getValueString(SymbolTable symbolTable, int valueNumber)
boolean	hasDef()	Does this instruction define a normal value, as distinct from a set of exceptions possibly thrown by it (e.g.
int	iIndex()
void	setInstructionIndex(int instructionIndex)
String	toString()
abstract void	visit(SSAInstruction.IVisitor v)	Apply an IVisitor to this instruction.

Methods inherited from class Object

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

Constructor Details

SSAAbstractThrowInstruction

public SSAAbstractThrowInstruction(int iindex,
 int exception)

Method Details

toString

public String toString(SymbolTable symbolTable)

Specified by:

toString in class SSAInstruction

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

isPEI

public boolean isPEI()

Overrides:

isPEI in class SSAInstruction

Returns:

true iff this instruction may throw an exception.

isFallThrough

public boolean isFallThrough()

Specified by:

isFallThrough in class SSAInstruction

Returns:

true iff this instruction may fall through to the next

getException

public int getException()

Returns:

value number of the thrown exception object.