jdk.internal.jvmci.hotspot

Class HotSpotConstantPool.Cache

java.lang.Object

jdk.internal.jvmci.hotspot.HotSpotConstantPool.Cache

Enclosing class:

HotSpotConstantPool

private final class HotSpotConstantPool.Cache
extends Object

Represents a ConstantPoolCache. The cache needs to be lazy since the constant pool cache is created when the methods of this class are rewritten and rewriting happens when the class is linked.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private class	HotSpotConstantPool.Cache.Entry Represents a ConstantPoolCacheEntry.

Field Summary

Fields

Modifier and Type	Field and Description
private long	address

Constructor Summary

Constructors

Constructor and Description
Cache()

Method Summary

Modifier and Type	Method and Description
int	constantPoolCacheIndexToConstantPoolIndex(int index) Maps the constant pool cache index back to a constant pool index.
boolean	exists() Returns whether a constant pool cache for this constant pool exists.
HotSpotConstantPool.Cache.Entry	getEntryAt(int index) Get the constant pool cache entry at index index.
private void	queryAddress() Queries the current value of ConstantPool::_cache if the current address is null.

Methods inherited from class java.lang.Object

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

Field Detail

address

private long address

Constructor Detail

Cache

public Cache()

Method Detail

queryAddress

private void queryAddress()

Queries the current value of ConstantPool::_cache if the current address is null.

exists

public boolean exists()

Returns whether a constant pool cache for this constant pool exists.

Returns:

true if it exists, false otherwise

getEntryAt

public HotSpotConstantPool.Cache.Entry getEntryAt(int index)

Get the constant pool cache entry at index index.

Parameters:

index - index of entry to return

Returns:

constant pool cache entry at given index

constantPoolCacheIndexToConstantPoolIndex

public int constantPoolCacheIndexToConstantPoolIndex(int index)

Maps the constant pool cache index back to a constant pool index. See ConstantPool::remap_instruction_operand_from_cache.

Parameters:

index - the constant pool cache index

Returns:

constant pool index