C# Class Jurassic.Library.ObjectInstance

Inheritance: System.Runtime.Serialization.IDeserializationCallback

显示文件 Open project: paulbartrum/jurassic Class Usage Examples

Private Properties

Property	Type	Description
AddProperty	bool
CreateRawObject	ObjectInstance
CreateRootObject	ObjectInstance
FastSetProperties	void
FastSetProperty	void
GetDeclarativeProperties	List
GetNamedPropertyValue	object
GetPrimitiveValue	object
GetPrimitiveValuePreES6	object
GetPropertyValue	object
HasOwnProperty	bool
InitializePrototypeProperties	void
IsPrototypeOf	bool
PropertyIsEnumerable	bool
ToLocaleString	string
ToStringJS	string
ValueOf	ObjectInstance
__STUB__HasOwnProperty	object
__STUB__IsPrototypeOf	object
__STUB__PropertyIsEnumerable	object
__STUB__ToLocaleString	object
__STUB__ToStringJS	object
__STUB__ValueOf	object

Public Methods

Method	Description
CallMemberFunction ( string functionName ) : object	Calls the function with the given name. The function must exist on this object or an exception will be thrown.
DefineProperty ( object key, PropertyDescriptor descriptor, bool throwOnError ) : bool	Defines or redefines the value and attributes of a property. The prototype chain is not searched so if the property exists but only in the prototype chain a new property will be created.
Delete ( object key, bool throwOnError ) : bool	Deletes the property with the given name.
Delete ( uint index, bool throwOnError ) : bool	Deletes the property with the given array index.
GetOwnPropertyDescriptor ( object key ) : PropertyDescriptor	Gets a descriptor for the property with the given name. The prototype chain is not searched.
GetOwnPropertyDescriptor ( uint index ) : PropertyDescriptor	Gets a descriptor for the property with the given array index. The prototype chain is not searched.
GetPropertyValue ( object key ) : object	Gets the value of the property with the given name. The prototype chain is searched if the property does not exist directly on this object.
GetPropertyValue ( uint index ) : object	Gets the value of the property with the given array index. The prototype chain is searched if the property does not exist directly on this object.
HasProperty ( object key ) : bool	Determines if a property with the given name exists.
InlineGetPropertyValue ( string name, int &cachedIndex, object &cacheKey ) : object	Gets the value of the given property plus the information needed to speed up access to the property in future.
InlineSetPropertyValue ( string name, object value, bool throwOnError, int &cachedIndex, object &cacheKey ) : void	Sets the value of the given property plus retrieves the information needed to speed up access to the property in future. If a property with the given name does not exist, or exists in the prototype chain (and is not a setter) then a new property is created.
InlineSetPropertyValueIfExists ( string name, object value, bool throwOnError, int &cachedIndex, object &cacheKey ) : bool	Sets the value of the given property plus retrieves the information needed to speed up access to the property in future. If a property with the given name exists, but only in the prototype chain, then a new property is created (unless the property is a setter, in which case the setter is called and no property is created). If the property does not exist at all, then no property is created and the method returns `false`.
SetPropertyValue ( object key, object value, bool throwOnError ) : void	Sets the value of the property with the given name. If a property with the given name does not exist, or exists in the prototype chain (and is not a setter) then a new property is created.
SetPropertyValue ( uint index, object value, bool throwOnError ) : void	Sets the value of the property with the given array index. If a property with the given index does not exist, or exists in the prototype chain (and is not a setter) then a new property is created.
SetPropertyValueIfExists ( object key, object value, bool throwOnError ) : bool	Sets the value of the given property. If a property with the given name exists, but only in the prototype chain, then a new property is created (unless the property is a setter, in which case the setter is called and no property is created). If the property does not exist at all, then no property is created and the method returns `false`. This method is used to set the value of a variable reference within a with statement.
ToString ( ) : string	Returns a string representing this object.
TryCallMemberFunction ( object &result, object key ) : bool	Calls the function with the given name.
this ( int index ) : object	Gets or sets the value of an array-indexed property.
this ( object key ) : object	Gets or sets the value of a named property.
this ( uint index ) : object	Gets or sets the value of an array-indexed property.

Protected Methods

Method	Description
GetMissingPropertyValue ( object key ) : object	Retrieves the value of a property which doesn't exist on the object. This method can be overridden to effectively construct properties on the fly. The default behavior is to return `undefined`. When overriding, call the base class implementation only if you want to revert to the default behavior.
ObjectInstance ( ObjectInstance prototype ) : System	Called by derived classes to create a new object instance.
ObjectInstance ( ScriptEngine engine ) : System	Creates an Object with the default prototype.
ObjectInstance ( ScriptEngine engine, ObjectInstance prototype ) : System	Called by derived classes to create a new object instance.
PopulateFields ( ) : void	Populates the object with properties by searching a .NET type for fields marked with the [JSField] attribute. Should be called only once at startup.
PopulateFields ( Type type ) : void	Populates the object with properties by searching a .NET type for fields marked with the [JSField] attribute. Should be called only once at startup.
PopulateFunctions ( ) : void	Populates the object with functions by searching a .NET type for methods marked with the [JSFunction] attribute. Should be called only once at startup. Also automatically populates properties marked with the [JSProperty] attribute.
PopulateFunctions ( Type type ) : void	Populates the object with functions by searching a .NET type for methods marked with the [JSFunction] attribute. Should be called only once at startup. Also automatically populates properties marked with the [JSProperty] attribute.
PopulateFunctions ( Type type, BindingFlags bindingFlags ) : void	Populates the object with functions by searching a .NET type for methods marked with the [JSFunction] attribute. Should be called only once at startup. Also automatically populates properties marked with the [JSProperty] attribute.

Private Methods

Method	Description
AddProperty ( object key, object value, PropertyAttributes attributes, bool throwOnError ) : bool	Adds a property to this object. The property must not already exist.
CreateRawObject ( ObjectInstance prototype ) : ObjectInstance	Creates an Object instance (use ObjectConstructor.Construct rather than this).
CreateRootObject ( ScriptEngine engine ) : ObjectInstance	Creates an Object with no prototype to serve as the base prototype of all objects.
FastSetProperties ( IEnumerable properties ) : void	Sets up multiple properties at once.
FastSetProperty ( object key, object value, PropertyAttributes attributes = PropertyAttributes.Sealed, bool overwriteAttributes = false ) : void	Sets a property value and attributes, or adds a new property if it doesn't already exist. Any existing attributes are ignored (and not modified).
GetDeclarativeProperties ( ScriptEngine engine ) : List
GetNamedPropertyValue ( object key, ObjectInstance thisValue ) : object	Gets the value of the property with the given name. The name cannot be an array index. The prototype chain is searched if the property does not exist directly on this object.
GetPrimitiveValue ( PrimitiveTypeHint typeHint ) : object	Returns a primitive value that represents the current object. Used by the addition and equality operators.
GetPrimitiveValuePreES6 ( PrimitiveTypeHint typeHint ) : object	Returns a primitive value that represents the current object, without using the @@toPrimitive symbol.
GetPropertyValue ( uint index, ObjectInstance thisValue ) : object	Gets the value of the property with the given array index. The prototype chain is searched if the property does not exist directly on this object.
HasOwnProperty ( ScriptEngine engine, object thisObject, object key ) : bool
InitializePrototypeProperties ( ObjectInstance obj, ObjectConstructor constructor ) : void	Initializes the prototype properties.
IsPrototypeOf ( ScriptEngine engine, object thisObject, object obj ) : bool
PropertyIsEnumerable ( ScriptEngine engine, object thisObject, object key ) : bool
ToLocaleString ( ) : string
ToStringJS ( ScriptEngine engine, object thisObject ) : string
ValueOf ( ) : ObjectInstance
__STUB__HasOwnProperty ( ScriptEngine engine, object thisObj, object args ) : object
__STUB__IsPrototypeOf ( ScriptEngine engine, object thisObj, object args ) : object
__STUB__PropertyIsEnumerable ( ScriptEngine engine, object thisObj, object args ) : object
__STUB__ToLocaleString ( ScriptEngine engine, object thisObj, object args ) : object
__STUB__ToStringJS ( ScriptEngine engine, object thisObj, object args ) : object
__STUB__ValueOf ( ScriptEngine engine, object thisObj, object args ) : object

Method Details

CallMemberFunction() public method

Calls the function with the given name. The function must exist on this object or an exception will be thrown.

public CallMemberFunction ( string functionName ) : object
functionName	string	The name of the function to call.
return	object

DefineProperty() public method

Defines or redefines the value and attributes of a property. The prototype chain is not searched so if the property exists but only in the prototype chain a new property will be created.

public DefineProperty ( object key, PropertyDescriptor descriptor, bool throwOnError ) : bool
key	object	The property key of the property to modify.
descriptor	PropertyDescriptor	The property value and attributes.
throwOnError	bool	true to throw an exception if the property could not /// be set. This can happen if the property is not configurable or the object is sealed.
return	bool

Delete() public method

Deletes the property with the given name.

public Delete ( object key, bool throwOnError ) : bool
key	object	The property key of the property to delete.
throwOnError	bool	true to throw an exception if the property could not /// be set because the property was marked as non-configurable.
return	bool

Delete() public method

Deletes the property with the given array index.

public Delete ( uint index, bool throwOnError ) : bool
index	uint	The array index of the property to delete.
throwOnError	bool	true to throw an exception if the property could not /// be set because the property was marked as non-configurable.
return	bool

GetMissingPropertyValue() protected method

Retrieves the value of a property which doesn't exist on the object. This method can be overridden to effectively construct properties on the fly. The default behavior is to return undefined.

When overriding, call the base class implementation only if you want to revert to the default behavior.

protected GetMissingPropertyValue ( object key ) : object
key	object	The property key of the missing property.
return	object

GetOwnPropertyDescriptor() public method

Gets a descriptor for the property with the given name.

The prototype chain is not searched.

public GetOwnPropertyDescriptor ( object key ) : PropertyDescriptor
key	object	The property key (either a string or a Symbol).
return	PropertyDescriptor

GetOwnPropertyDescriptor() public method

Gets a descriptor for the property with the given array index.

The prototype chain is not searched.

public GetOwnPropertyDescriptor ( uint index ) : PropertyDescriptor
index	uint	The array index of the property.
return	PropertyDescriptor

GetPropertyValue() public method

Gets the value of the property with the given name.

The prototype chain is searched if the property does not exist directly on this object.

public GetPropertyValue ( object key ) : object
key	object	The property key (either a string or a Symbol).
return	object

GetPropertyValue() public method

Gets the value of the property with the given array index.

The prototype chain is searched if the property does not exist directly on this object.

public GetPropertyValue ( uint index ) : object
index	uint	The array index of the property.
return	object

HasProperty() public method

Determines if a property with the given name exists.

public HasProperty ( object key ) : bool
key	object	The property key (either a string or a Symbol).
return	bool

InlineGetPropertyValue() public method

Gets the value of the given property plus the information needed to speed up access to the property in future.

public InlineGetPropertyValue ( string name, int &cachedIndex, object &cacheKey ) : object
name	string	The name of the property.
cachedIndex	int	Set to a zero-based index that can be used to get or set the /// property value in future (provided the cache key doesn't change).
cacheKey	object	Set to a value that can be compared with the CacheKey property /// to determine if the cached index needs to be refreshed. Can be set to null to /// prohibit caching.
return	object

InlineSetPropertyValue() public method

Sets the value of the given property plus retrieves the information needed to speed up access to the property in future. If a property with the given name does not exist, or exists in the prototype chain (and is not a setter) then a new property is created.

public InlineSetPropertyValue ( string name, object value, bool throwOnError, int &cachedIndex, object &cacheKey ) : void
name	string	The name of the property to set.
value	object	The desired value of the property.
throwOnError	bool	true to throw an exception if the property could not /// be set (i.e. if the property is read-only or if the object is not extensible and a new /// property needs to be created).
cachedIndex	int	Set to a zero-based index that can be used to get or set the /// property value in future (provided the cache key doesn't change).
cacheKey	object	Set to a value that can be compared with the CacheKey property /// to determine if the cached index needs to be refreshed. Can be set to null to /// prohibit caching.
return	void

InlineSetPropertyValueIfExists() public method

Sets the value of the given property plus retrieves the information needed to speed up access to the property in future. If a property with the given name exists, but only in the prototype chain, then a new property is created (unless the property is a setter, in which case the setter is called and no property is created). If the property does not exist at all, then no property is created and the method returns false.

public InlineSetPropertyValueIfExists ( string name, object value, bool throwOnError, int &cachedIndex, object &cacheKey ) : bool
name	string	The name of the property to set.
value	object	The desired value of the property. This must be a javascript /// primitive (double, string, etc) or a class derived from .
throwOnError	bool	true to throw an exception if the property could not /// be set (i.e. if the property is read-only or if the object is not extensible and a new /// property needs to be created).
cachedIndex	int	Set to a zero-based index that can be used to get or set the /// property value in future (provided the cache key doesn't change).
cacheKey	object	Set to a value that can be compared with the CacheKey property /// to determine if the cached index needs to be refreshed. Can be set to null to /// prohibit caching.
return	bool

ObjectInstance() protected method

Called by derived classes to create a new object instance.

protected ObjectInstance ( ObjectInstance prototype ) : System
prototype	ObjectInstance	The next object in the prototype chain. Cannot be null.
return	System

ObjectInstance() protected method

Creates an Object with the default prototype.

protected ObjectInstance ( ScriptEngine engine ) : System
engine	ScriptEngine	The script engine associated with this object.
return	System

ObjectInstance() protected method

Called by derived classes to create a new object instance.

protected ObjectInstance ( ScriptEngine engine, ObjectInstance prototype ) : System
engine	ScriptEngine	The script engine associated with this object.
prototype	ObjectInstance	The next object in the prototype chain. Can be null.
return	System

PopulateFields() protected method

Populates the object with properties by searching a .NET type for fields marked with the [JSField] attribute. Should be called only once at startup.

protected PopulateFields ( ) : void
return	void

PopulateFields() protected method

Populates the object with properties by searching a .NET type for fields marked with the [JSField] attribute. Should be called only once at startup.

protected PopulateFields ( Type type ) : void
type	System.Type	The type to search for fields.
return	void

PopulateFunctions() protected method

Populates the object with functions by searching a .NET type for methods marked with the [JSFunction] attribute. Should be called only once at startup. Also automatically populates properties marked with the [JSProperty] attribute.

protected PopulateFunctions ( ) : void
return	void

PopulateFunctions() protected method

protected PopulateFunctions ( Type type ) : void
type	System.Type	The type to search for methods.
return	void

PopulateFunctions() protected method

protected PopulateFunctions ( Type type, BindingFlags bindingFlags ) : void
type	System.Type	The type to search for methods.
bindingFlags	BindingFlags	The binding flags to use to search for properties and methods.
return	void

SetPropertyValue() public method

Sets the value of the property with the given name. If a property with the given name does not exist, or exists in the prototype chain (and is not a setter) then a new property is created.

public SetPropertyValue ( object key, object value, bool throwOnError ) : void
key	object	The property key of the property to set.
value	object	The value to set the property to. This must be a javascript /// primitive (double, string, etc) or a class derived from .
throwOnError	bool	true to throw an exception if the property could not /// be set (i.e. if the property is read-only or if the object is not extensible and a new /// property needs to be created).
return	void

SetPropertyValue() public method

Sets the value of the property with the given array index. If a property with the given index does not exist, or exists in the prototype chain (and is not a setter) then a new property is created.

public SetPropertyValue ( uint index, object value, bool throwOnError ) : void
index	uint	The array index of the property to set.
value	object	The value to set the property to. This must be a javascript /// primitive (double, string, etc) or a class derived from .
throwOnError	bool	true to throw an exception if the property could not /// be set. This can happen if the property is read-only or if the object is sealed.
return	void

SetPropertyValueIfExists() public method

Sets the value of the given property. If a property with the given name exists, but only in the prototype chain, then a new property is created (unless the property is a setter, in which case the setter is called and no property is created). If the property does not exist at all, then no property is created and the method returns false. This method is used to set the value of a variable reference within a with statement.

public SetPropertyValueIfExists ( object key, object value, bool throwOnError ) : bool
key	object	The property key (either a string or a Symbol). Cannot be an array index.
value	object	The desired value of the property. This must be a javascript /// primitive (double, string, etc) or a class derived from .
throwOnError	bool	true to throw an exception if the property could not /// be set (i.e. if the property is read-only or if the object is not extensible and a new /// property needs to be created).
return	bool

ToString() public method

Returns a string representing this object.

public ToString ( ) : string
return	string

TryCallMemberFunction() public method

Calls the function with the given name.

public TryCallMemberFunction ( object &result, object key ) : bool
result	object	The result of calling the function.
key	object	The name or symbol of the function to call.
return	bool

this() public method

Gets or sets the value of an array-indexed property.

public this ( int index ) : object
index	int	The index of the property to retrieve.
return	object

this() public method

Gets or sets the value of a named property.

public this ( object key ) : object
key	object	The property key (either a string or a Symbol).
return	object

this() public method

Gets or sets the value of an array-indexed property.

public this ( uint index ) : object
index	uint	The index of the property to retrieve.
return	object