Package org.mozilla.javascript

Class EmbeddedSlotMap

java.lang.Object

org.mozilla.javascript.EmbeddedSlotMap

All Implemented Interfaces:

java.lang.Iterable<ScriptableObject.Slot>, SlotMap

public class EmbeddedSlotMap
extends java.lang.Object
implements SlotMap

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	EmbeddedSlotMap.Iter

Field Summary

Fields

Modifier and Type	Field	Description
private int	count
private ScriptableObject.Slot	firstAdded
private static int	INITIAL_SLOT_SIZE
private ScriptableObject.Slot	lastAdded
private ScriptableObject.Slot[]	slots

Constructor Summary

Constructors

Constructor	Description
EmbeddedSlotMap()

Method Summary

Modifier and Type	Method	Description
private static void	addKnownAbsentSlot(ScriptableObject.Slot[] addSlots, ScriptableObject.Slot slot)	Add slot with keys that are known to absent from the table.
void	addSlot(ScriptableObject.Slot newSlot)	Insert a new slot to the map.
private static void	copyTable(ScriptableObject.Slot[] oldSlots, ScriptableObject.Slot[] newSlots)
private ScriptableObject.Slot	createSlot(java.lang.Object key, int indexOrHash, ScriptableObject.SlotAccess accessType, ScriptableObject.Slot existingSlot)
ScriptableObject.Slot	get(java.lang.Object key, int index, ScriptableObject.SlotAccess accessType)	Locate the slot with given name or index.
private static int	getSlotIndex(int tableSize, int indexOrHash)
private void	insertNewSlot(ScriptableObject.Slot newSlot)
boolean	isEmpty()	Return whether the map is empty.
java.util.Iterator<ScriptableObject.Slot>	iterator()
ScriptableObject.Slot	query(java.lang.Object key, int index)	Locate the slot with the given name or index.
void	remove(java.lang.Object key, int index)	Remove the slot at either "key" or "index".
int	size()	Return the size of the map.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

slots

private ScriptableObject.Slot[] slots

firstAdded

private ScriptableObject.Slot firstAdded

lastAdded

private ScriptableObject.Slot lastAdded

count

private int count

INITIAL_SLOT_SIZE

private static final int INITIAL_SLOT_SIZE

See Also:

Constant Field Values

Constructor Detail

EmbeddedSlotMap

public EmbeddedSlotMap()

Method Detail

size

public int size()

Description copied from interface: SlotMap

Return the size of the map.

Specified by:

size in interface SlotMap

isEmpty

public boolean isEmpty()

Description copied from interface: SlotMap

Return whether the map is empty.

Specified by:

isEmpty in interface SlotMap

iterator

public java.util.Iterator<ScriptableObject.Slot> iterator()

Specified by:

iterator in interface java.lang.Iterable<ScriptableObject.Slot>

query

public ScriptableObject.Slot query(java.lang.Object key,
                                   int index)

Locate the slot with the given name or index.

Specified by:

query in interface SlotMap

get

public ScriptableObject.Slot get(java.lang.Object key,
                                 int index,
                                 ScriptableObject.SlotAccess accessType)

Locate the slot with given name or index. Depending on the accessType parameter and the current slot status, a new slot may be allocated.

Specified by:

get in interface SlotMap

Parameters:

key - either a String or a Symbol object that identifies the property

index - index or 0 if slot holds property name.

createSlot

private ScriptableObject.Slot createSlot(java.lang.Object key,
                                         int indexOrHash,
                                         ScriptableObject.SlotAccess accessType,
                                         ScriptableObject.Slot existingSlot)

addSlot

public void addSlot(ScriptableObject.Slot newSlot)

Description copied from interface: SlotMap

Insert a new slot to the map. Both "name" and "indexOrHash" must be populated. Note that ScriptableObject generally adds slots via the "get" method.

Specified by:

addSlot in interface SlotMap

insertNewSlot

private void insertNewSlot(ScriptableObject.Slot newSlot)

remove

public void remove(java.lang.Object key,
                   int index)

Description copied from interface: SlotMap

Remove the slot at either "key" or "index".

Specified by:

remove in interface SlotMap

copyTable

private static void copyTable(ScriptableObject.Slot[] oldSlots,
                              ScriptableObject.Slot[] newSlots)

addKnownAbsentSlot

private static void addKnownAbsentSlot(ScriptableObject.Slot[] addSlots,
                                       ScriptableObject.Slot slot)

Add slot with keys that are known to absent from the table. This is an optimization to use when inserting into empty table, after table growth or during deserialization.

getSlotIndex

private static int getSlotIndex(int tableSize,
                                int indexOrHash)