Class AstConsumeInstruction

java.lang.Object

com.ibm.wala.ssa.SSAInstruction

com.ibm.wala.cast.ir.ssa.AstConsumeInstruction

Direct Known Subclasses:

AstEchoInstruction, AstYieldInstruction

public abstract class AstConsumeInstruction
extends SSAInstruction

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

Modifier and Type	Field	Description
protected final int[]	rvals

Fields inherited from class SSAInstruction

NO_INDEX

Modifier and Type	Field	Description
static final int	NO_INDEX

Constructor Summary

Constructors

Constructor	Description
AstConsumeInstruction(int iindex, int[] rvals)

Method Summary

Modifier and Type	Method	Description
int	getDef(int i)	Return the ith def
Collection<TypeReference>	getExceptionTypes()	This method should never return null.
int	getNumberOfUses()
int	getUse(int i)
int	hashCode()
boolean	isFallThrough()

Methods inherited from class SSAInstruction

copyForSSA, equals, getDef, getNumberOfDefs, getValueString, hasDef, iIndex, isPEI, setInstructionIndex, toString, 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	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()
boolean	isPEI()
void	setInstructionIndex(int instructionIndex)
String	toString()
abstract String	toString(SymbolTable symbolTable)
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

Field Details

rvals

protected final int[] rvals

Constructor Details

AstConsumeInstruction

public AstConsumeInstruction(int iindex,
 int[] rvals)

Method Details

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.

getNumberOfUses

public int getNumberOfUses()

Overrides:

getNumberOfUses in class SSAInstruction

getUse

public int getUse(int i)

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

getExceptionTypes

public Collection<TypeReference> getExceptionTypes()

Description copied from class: SSAInstruction

This method should never return null.

Overrides:

getExceptionTypes in class SSAInstruction

Returns:

the set of exception types that an instruction might throw ... disregarding athrows and invokes.