Module org.htmlunit.corejs

Package org.htmlunit.corejs.javascript

Class SlotMapOwner<T extends PropHolder<T>>

java.lang.Object

org.htmlunit.corejs.javascript.SlotMapOwner<T>

All Implemented Interfaces:

PropHolder<T>

Direct Known Subclasses:

ScopeObject, ScriptableObject

public abstract class SlotMapOwner<T extends PropHolder<T>>
extends Object
implements PropHolder<T>

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	isSealed

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SlotMapOwner()
protected	SlotMapOwner(int capacity)
protected	SlotMapOwner(SlotMap<T> map)

Method Summary

Modifier and Type	Method	Description
final Object	associateValue(Object key, Object value)	Associate arbitrary application-specific value with this object.
protected void	checkNotSealed(Object key, int index)
protected void	copyAssociatedValue(SlotMapOwner<T> other)
protected static <T extends PropHolder<T>> SlotMap<T>	createSlotMap(int initialSize)
protected static <T extends PropHolder<T>, O extends ScriptableObject> SlotMap<T>	createSlotMap(CompactSlot<?,T,O> slot0, CompactSlot<?,T,O> slot1, CompactSlot<?,T,O> slot2, CompactSlot<?,T,O> slot3)
void	defineProperty(String propertyName, Object value, int attributes)	Define a JavaScript property.
void	defineProperty(Symbol key, Object value, int attributes)	A version of defineProperty that uses a Symbol key.
void	delete(int index)
void	delete(String name)
void	delete(Symbol key)
Object	get(int index, T start)	Returns the value of the indexed property or NOT_FOUND.
Object	get(String name, T start)	Returns the value of the named property or NOT_FOUND.
Object	get(Symbol key, T start)	Another version of Get that supports Symbol keyed properties.
final Object	getAssociatedValue(Object key)	Get arbitrary application-specific value associated with this object.
int	getAttributes(int index)	Get the attributes of an indexed property.
final int	getAttributes(int index, Scriptable start)	Deprecated. Use getAttributes(int index).
int	getAttributes(String name)	Get the attributes of a named property.
final int	getAttributes(String name, Scriptable start)	Deprecated. Use getAttributes(String name).
int	getAttributes(Symbol sym)
Object[]	getIds()	Returns an array of ids for the properties of the object.
abstract T	getThis()
boolean	has(int index, T start)	Returns true if the property index is defined.
boolean	has(String name, T start)	Returns true if the named property is defined.
boolean	has(Symbol key, T start)	A version of "has" that supports symbols.
final boolean	isSealed()	Return true if this object is sealed.
void	put(int index, T start, Object value)
void	put(String name, T start, Object value)
void	put(Symbol name, T start, Object value)
protected void	readMaps(ObjectInputStream in)
void	sealObject()
void	setAttributes(int index, int attributes)	Set the attributes of an indexed property.
void	setAttributes(int index, Scriptable start, int attributes)	Deprecated. Use setAttributes(int index, int attributes).
void	setAttributes(String name, int attributes)	Set the attributes of a named property.
final void	setAttributes(String name, Scriptable start, int attributes)	Deprecated. Use setAttributes(String name, int attributes).
void	setAttributes(Symbol key, int attributes)	Set attributes of a Symbol-keyed property.
protected void	writeMaps(ObjectOutputStream out)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.htmlunit.corejs.javascript.PropHolder

getAncestor

Field Details

isSealed

protected boolean isSealed

Constructor Details

SlotMapOwner

protected SlotMapOwner()

SlotMapOwner

protected SlotMapOwner(int capacity)

SlotMapOwner

protected SlotMapOwner(SlotMap<T> map)

Method Details

createSlotMap

protected static <T extends PropHolder<T>>
SlotMap<T> createSlotMap(int initialSize)

createSlotMap

protected static <T extends PropHolder<T>,
O extends ScriptableObject>
SlotMap<T> createSlotMap(CompactSlot<?,T,O> slot0,
 CompactSlot<?,T,O> slot1,
 CompactSlot<?,T,O> slot2,
 CompactSlot<?,T,O> slot3)

has

public boolean has(String name,
 T start)

Returns true if the named property is defined.

Specified by:

has in interface PropHolder<T extends PropHolder<T>>

Parameters:

name - the name of the property

start - the object in which the lookup began

Returns:

true if and only if the property was found in the object

has

public boolean has(int index,
 T start)

Returns true if the property index is defined.

Specified by:

has in interface PropHolder<T extends PropHolder<T>>

Parameters:

index - the numeric index for the property

start - the object in which the lookup began

Returns:

true if and only if the property was found in the object

has

public boolean has(Symbol key,
 T start)

A version of "has" that supports symbols.

Specified by:

has in interface PropHolder<T extends PropHolder<T>>

get

public Object get(String name,
 T start)

Returns the value of the named property or NOT_FOUND.

If the property was created using defineProperty, the appropriate getter method is called.

Specified by:

get in interface PropHolder<T extends PropHolder<T>>

Parameters:

name - the name of the property

start - the object in which the lookup began

Returns:

the value of the property (may be null), or NOT_FOUND

get

public Object get(int index,
 T start)

Returns the value of the indexed property or NOT_FOUND.

Specified by:

get in interface PropHolder<T extends PropHolder<T>>

Parameters:

index - the numeric index for the property

start - the object in which the lookup began

Returns:

the value of the property (may be null), or NOT_FOUND

get

public Object get(Symbol key,
 T start)

Another version of Get that supports Symbol keyed properties.

Specified by:

get in interface PropHolder<T extends PropHolder<T>>

put

public void put(String name,
 T start,
 Object value)

Specified by:

put in interface PropHolder<T extends PropHolder<T>>

put

public void put(int index,
 T start,
 Object value)

Specified by:

put in interface PropHolder<T extends PropHolder<T>>

put

public void put(Symbol name,
 T start,
 Object value)

Specified by:

put in interface PropHolder<T extends PropHolder<T>>

delete

public void delete(String name)

Specified by:

delete in interface PropHolder<T extends PropHolder<T>>

delete

public void delete(int index)

Specified by:

delete in interface PropHolder<T extends PropHolder<T>>

delete

public void delete(Symbol key)

Specified by:

delete in interface PropHolder<T extends PropHolder<T>>

getAssociatedValue

public final Object getAssociatedValue(Object key)

Get arbitrary application-specific value associated with this object.

Parameters:

key - key object to select particular value.

See Also:

• associateValue(Object key, Object value)

copyAssociatedValue

protected void copyAssociatedValue(SlotMapOwner<T> other)

associateValue

public final Object associateValue(Object key,
 Object value)

Associate arbitrary application-specific value with this object. Value can only be associated with the given object and key only once. The method ignores any subsequent attempts to change the already associated value.

The associated values are not serialized.

Parameters:

key - key object to select particular value.

value - the value to associate

Returns:

the passed value if the method is called first time for the given key or old value for any subsequent calls.

See Also:

• getAssociatedValue(Object key)

isSealed

public final boolean isSealed()

Return true if this object is sealed.

Returns:

true if sealed, false otherwise.

Since:

1.4R3

See Also:

• sealObject()

sealObject

public void sealObject()

checkNotSealed

protected void checkNotSealed(Object key,
 int index)

getAttributes

@Deprecated
public final int getAttributes(String name,
 Scriptable start)

Deprecated.

Use getAttributes(String name). The engine always ignored the start argument.

getAttributes

@Deprecated
public final int getAttributes(int index,
 Scriptable start)

Deprecated.

Use getAttributes(int index). The engine always ignored the start argument.

setAttributes

@Deprecated
public final void setAttributes(String name,
 Scriptable start,
 int attributes)

Deprecated.

Use setAttributes(String name, int attributes). The engine always ignored the start argument.

setAttributes

@Deprecated
public void setAttributes(int index,
 Scriptable start,
 int attributes)

Deprecated.

Use setAttributes(int index, int attributes). The engine always ignored the start argument.

getAttributes

public int getAttributes(String name)

Get the attributes of a named property.

The property is specified by name as defined for has.

Parameters:

name - the identifier for the property

Returns:

the bitset of attributes

Throws:

EvaluatorException - if the named property is not found

See Also:

• Scriptable.has(String, Scriptable)
• ScriptableObject.READONLY
• ScriptableObject.DONTENUM
• ScriptableObject.PERMANENT
• ScriptableObject.EMPTY

getAttributes

public int getAttributes(int index)

Get the attributes of an indexed property.

Parameters:

index - the numeric index for the property

Returns:

the bitset of attributes

Throws:

EvaluatorException - if the named property is not found is not found

See Also:

• Scriptable.has(String, Scriptable)
• ScriptableObject.READONLY
• ScriptableObject.DONTENUM
• ScriptableObject.PERMANENT
• ScriptableObject.EMPTY

getAttributes

public int getAttributes(Symbol sym)

setAttributes

public void setAttributes(String name,
 int attributes)

Set the attributes of a named property.

The property is specified by name as defined for has.

The possible attributes are READONLY, DONTENUM, and PERMANENT. Combinations of attributes are expressed by the bitwise OR of attributes. EMPTY is the state of no attributes set. Any unused bits are reserved for future use.

Parameters:

name - the name of the property

attributes - the bitset of attributes

Throws:

EvaluatorException - if the named property is not found

See Also:

• Scriptable.has(String, Scriptable)
• ScriptableObject.READONLY
• ScriptableObject.DONTENUM
• ScriptableObject.PERMANENT
• ScriptableObject.EMPTY

setAttributes

public void setAttributes(int index,
 int attributes)

Set the attributes of an indexed property.

Parameters:

index - the numeric index for the property

attributes - the bitset of attributes

Throws:

EvaluatorException - if the named property is not found

See Also:

• Scriptable.has(String, Scriptable)
• ScriptableObject.READONLY
• ScriptableObject.DONTENUM
• ScriptableObject.PERMANENT
• ScriptableObject.EMPTY

setAttributes

public void setAttributes(Symbol key,
 int attributes)

Set attributes of a Symbol-keyed property.

writeMaps

protected void writeMaps(ObjectOutputStream out)
                  throws IOException

Throws:

IOException

readMaps

protected void readMaps(ObjectInputStream in)
                 throws IOException,
ClassNotFoundException

Throws:

IOException

ClassNotFoundException

defineProperty

public void defineProperty(String propertyName,
 Object value,
 int attributes)

Define a JavaScript property.

Creates the property with an initial value and sets its attributes.

Parameters:

propertyName - the name of the property to define.

value - the initial value of the property

attributes - the attributes of the JavaScript property

See Also:

• Scriptable.put(String, Scriptable, Object)

defineProperty

public void defineProperty(Symbol key,
 Object value,
 int attributes)

A version of defineProperty that uses a Symbol key.

Parameters:

key - symbol of the property to define.

value - the initial value of the property

attributes - the attributes of the JavaScript property

getIds

public Object[] getIds()

Returns an array of ids for the properties of the object.

Any properties with the attribute DONTENUM are not listed.

Specified by:

getIds in interface PropHolder<T extends PropHolder<T>>

Returns:

an array of java.lang.Objects with an entry for every listed property. Properties accessed via an integer index will have a corresponding Integer entry in the returned array. Properties accessed by a String will have a String entry in the returned array.

getThis

public abstract T getThis()