Class ProgramCounter

java.lang.Object

com.ibm.wala.classLoader.ProgramCounter

Direct Known Subclasses:

CallSiteReference, NewSiteReference

public class ProgramCounter
extends Object

Simple object that represents a program counter value (i.e., an instruction in the bytecode)

Field Summary

Fields

Modifier and Type	Field	Description
static final int	NO_SOURCE_LINE_NUMBER	A constant indicating no source line number information is available.

Constructor Summary

Constructors

Constructor	Description
ProgramCounter(int programCounter)

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)	A Program Counter value is enough to uniquely identify a call site reference within a method.
int	getProgramCounter()	Return the program counter (index into the method's bytecode) for this call site.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

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

Field Details

NO_SOURCE_LINE_NUMBER

public static final int NO_SOURCE_LINE_NUMBER

A constant indicating no source line number information is available.

See Also:

• Constant Field Values

Constructor Details

ProgramCounter

public ProgramCounter(int programCounter)

Parameters:

programCounter - Index into bytecode describing this instruction

Method Details

getProgramCounter

public int getProgramCounter()

Return the program counter (index into the method's bytecode) for this call site.

Returns:

the program counter (index into the method's bytecode) for this call site.

equals

public boolean equals(Object obj)

A Program Counter value is enough to uniquely identify a call site reference within a method.

Note: must use these objects with extreme care; this only works if you never mix ProgramLocations from different methods in the same collection.

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object