com.oracle.graal.compiler.common.util

Class BitMap2D

java.lang.Object

com.oracle.graal.compiler.common.util.BitMap2D

public final class BitMap2D
extends Object

This class implements a two-dimensional bitmap.

Field Summary

Fields

Modifier and Type	Field and Description
private int	bitsPerSlot
private BitSet	map

Constructor Summary

Constructors

Constructor and Description
BitMap2D(int sizeInSlots, int bitsPerSlot)

Method Summary

Modifier and Type	Method and Description
boolean	at(int slotIndex, int bitWithinSlotIndex)
void	atPutGrow(int slotIndex, int bitWithinSlotIndex, boolean value)
private int	bitIndex(int slotIndex, int bitWithinSlotIndex)
void	clear()
void	clearBit(int slotIndex, int bitWithinSlotIndex)
boolean	isValidIndex(int slotIndex, int bitWithinSlotIndex)
void	setBit(int slotIndex, int bitWithinSlotIndex)
int	sizeInBits()
int	sizeInSlots()
private boolean	verifyBitWithinSlotIndex(int index)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

map

private BitSet map

bitsPerSlot

private final int bitsPerSlot

Constructor Detail

BitMap2D

public BitMap2D(int sizeInSlots,
                int bitsPerSlot)

Method Detail

bitIndex

private int bitIndex(int slotIndex,
                     int bitWithinSlotIndex)

verifyBitWithinSlotIndex

private boolean verifyBitWithinSlotIndex(int index)

sizeInBits

public int sizeInBits()

sizeInSlots

public int sizeInSlots()

isValidIndex

public boolean isValidIndex(int slotIndex,
                            int bitWithinSlotIndex)

at

public boolean at(int slotIndex,
                  int bitWithinSlotIndex)

setBit

public void setBit(int slotIndex,
                   int bitWithinSlotIndex)

clearBit

public void clearBit(int slotIndex,
                     int bitWithinSlotIndex)

atPutGrow

public void atPutGrow(int slotIndex,
                      int bitWithinSlotIndex,
                      boolean value)

clear

public void clear()