Package org.htmlunit.corejs.javascript

Class AbstractEcmaObjectOperations

java.lang.Object

org.htmlunit.corejs.javascript.AbstractEcmaObjectOperations

class AbstractEcmaObjectOperations
extends Object

Abstract Object Operations as defined by EcmaScript

See Also:

• Abstract Operations - Operations on Objects

  Notes

  • all methods are to deviate from the method signature defined in the EcmaScript specification, by taking an additional 1st parameter of type Context: (downstream) methods may need the Context object to read flags and we want to avoid having to look up the current context (for performance reasons)
  • all methods that implement an Abstract Operation as defined by EcmaScript are to be package-scopes methods, to prevent them from being used directly by 3rd party code, which would hamper evolving them over time to adept to newer EcmaScript specifications
  • a link to the method specification of the specific (EcmaScript) version implemented will be put in the JavaDoc of each method that implements an Abstract Operations

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static enum	AbstractEcmaObjectOperations.INTEGRITY_LEVEL

Constructor Summary

Constructors

Constructor	Description
AbstractEcmaObjectOperations()

Method Summary

Modifier and Type	Method	Description
(package private) static List<Object>	createListFromArrayLike(Context cx, Scriptable o, Predicate<Object> elementTypesPredicate, String msg)	CreateListFromArrayLike ( obj [ , elementTypes ] )
(package private) static boolean	hasOwnProperty(Context cx, Object o, Object property)	Implementation of Abstract Object operation HasOwnProperty as defined by EcmaScript
(package private) static boolean	isCompatiblePropertyDescriptor(boolean extensible, ScriptableObject desc, ScriptableObject current)	IsCompatiblePropertyDescriptor ( Extensible, Desc, Current )
(package private) static long	lengthOfArrayLike(Context cx, Scriptable o)	LengthOfArrayLike ( obj )
(package private) static void	put(Context cx, Scriptable o, int p, Object v, boolean isThrow)	Set ( O, P, V, Throw)
(package private) static void	put(Context cx, Scriptable o, String p, Object v, boolean isThrow)	Set ( O, P, V, Throw)
(package private) static boolean	setIntegrityLevel(Context cx, Object o, AbstractEcmaObjectOperations.INTEGRITY_LEVEL level)	Implementation of Abstract Object operation setIntegrityLevel as defined by EcmaScript
(package private) static Constructable	speciesConstructor(Context cx, Scriptable s, Constructable defaultConstructor)	Implement the ECMAScript abstract operation "SpeciesConstructor" defined in section 7.2.33 of ECMA262.
(package private) static boolean	testIntegrityLevel(Context cx, Object o, AbstractEcmaObjectOperations.INTEGRITY_LEVEL level)	Implementation of Abstract Object operation testIntegrityLevel as defined by EcmaScript
(package private) static boolean	validateAndApplyPropertyDescriptor(Scriptable o, Scriptable p, boolean extensible, ScriptableObject desc, ScriptableObject current)	ValidateAndApplyPropertyDescriptor ( O, P, extensible, Desc, current )

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractEcmaObjectOperations

AbstractEcmaObjectOperations()

Method Details

hasOwnProperty

static boolean hasOwnProperty(Context cx,
 Object o,
 Object property)

Implementation of Abstract Object operation HasOwnProperty as defined by EcmaScript

Parameters:

cx -

o -

property -

Returns:

boolean

See Also:

testIntegrityLevel

static boolean testIntegrityLevel(Context cx,
 Object o,
 AbstractEcmaObjectOperations.INTEGRITY_LEVEL level)

Implementation of Abstract Object operation testIntegrityLevel as defined by EcmaScript

Parameters:

cx -

o -

level -

Returns:

boolean

See Also:

• TestIntegrityLevel

setIntegrityLevel

static boolean setIntegrityLevel(Context cx,
 Object o,
 AbstractEcmaObjectOperations.INTEGRITY_LEVEL level)

Implementation of Abstract Object operation setIntegrityLevel as defined by EcmaScript

Parameters:

cx -

o -

level -

Returns:

boolean

See Also:

• SetIntegrityLevel

speciesConstructor

static Constructable speciesConstructor(Context cx,
 Scriptable s,
 Constructable defaultConstructor)

Implement the ECMAScript abstract operation "SpeciesConstructor" defined in section 7.2.33 of ECMA262.

Parameters:

cx - context

s - the object for which we will find the "species constructor" as per the spec

defaultConstructor - as per the spec, the value that will be returned if there is no constructor on "s" or if the "species" symbol is not set.

See Also:

put

static void put(Context cx,
 Scriptable o,
 String p,
 Object v,
 boolean isThrow)

Set ( O, P, V, Throw)

https://262.ecma-international.org/12.0/#sec-set-o-p-v-throw

put

static void put(Context cx,
 Scriptable o,
 int p,
 Object v,
 boolean isThrow)

Set ( O, P, V, Throw)

https://262.ecma-international.org/12.0/#sec-set-o-p-v-throw

createListFromArrayLike

static List<Object> createListFromArrayLike(Context cx,
 Scriptable o,
 Predicate<Object> elementTypesPredicate,
 String msg)

CreateListFromArrayLike ( obj [ , elementTypes ] )

https://262.ecma-international.org/12.0/#sec-createlistfromarraylike

lengthOfArrayLike

static long lengthOfArrayLike(Context cx,
 Scriptable o)

LengthOfArrayLike ( obj )

https://262.ecma-international.org/12.0/#sec-lengthofarraylike

isCompatiblePropertyDescriptor

static boolean isCompatiblePropertyDescriptor(boolean extensible,
 ScriptableObject desc,
 ScriptableObject current)

IsCompatiblePropertyDescriptor ( Extensible, Desc, Current )

https://262.ecma-international.org/12.0/#sec-iscompatiblepropertydescriptor

validateAndApplyPropertyDescriptor

static boolean validateAndApplyPropertyDescriptor(Scriptable o,
 Scriptable p,
 boolean extensible,
 ScriptableObject desc,
 ScriptableObject current)

ValidateAndApplyPropertyDescriptor ( O, P, extensible, Desc, current )

https://262.ecma-international.org/12.0/#sec-validateandapplypropertydescriptor