Class

JavaScriptCoreValue

Description [src]

class JavaScriptCore.Value : GObject.Object {
  parent: GObject,
  priv: JSCValuePrivate*
}

JSCValue represents a reference to a value in a JSCContext. The JSCValue protects the referenced value from being garbage collected.

Hierarchy

Ancestors

GObject

Constructors

jsc_value_new_array

Create a new JSCValue referencing an array with the given items. If first_item_type is G_TYPE_NONE an empty array is created.

jsc_value_new_array_buffer

Creates a new %ArrayBuffer from existing data in memory.

Available since: 2.38

jsc_value_new_array_from_garray

Create a new JSCValue referencing an array with the items from array. If array is NULL or empty a new empty array will be created. Elements of array should be pointers to a JSCValue.

jsc_value_new_array_from_strv

Create a new JSCValue referencing an array of strings with the items from strv. If array is NULL or empty a new empty array will be created.

jsc_value_new_from_json

Create a new JSCValue referencing a new value created by parsing json.

Available since: 2.28

Create a function in context. If name is NULL an anonymous function will be created. When the function is called by JavaScript or jsc_value_function_call(), callback is called receiving the function parameters and then user_data as last parameter. When the function is cleared in context, destroy_notify is called with user_data as parameter.

jsc_value_new_function_variadic

Create a function in context. If name is NULL an anonymous function will be created. When the function is called by JavaScript or jsc_value_function_call(), callback is called receiving an GPtrArray of JSCValues with the arguments and then user_data as last parameter. When the function is cleared in context, destroy_notify is called with user_data as parameter.

jsc_value_new_functionv

Create a function in context. If name is NULL an anonymous function will be created. When the function is called by JavaScript or jsc_value_function_call(), callback is called receiving the function parameters and then user_data as last parameter. When the function is cleared in context, destroy_notify is called with user_data as parameter.

jsc_value_new_null

Create a new JSCValue referencing null in context.

jsc_value_new_number

Create a new JSCValue from number.

jsc_value_new_object

Create a new JSCValue from instance. If instance is NULL a new empty object is created. When instance is provided, jsc_class must be provided too. jsc_class takes ownership of instance that will be freed by the GDestroyNotify passed to jsc_context_register_class().

jsc_value_new_string

Create a new JSCValue from string. If you need to create a JSCValue from a string containing null characters, use jsc_value_new_string_from_bytes() instead.

jsc_value_new_string_from_bytes

Create a new JSCValue from bytes.

jsc_value_new_typed_array

Create a new typed array containing a given amount of elements.

Available since: 2.38

jsc_value_new_undefined

Create a new JSCValue referencing undefined in context.

Instance methods

jsc_value_array_buffer_get_data

Gets a pointer to memory that contains the array buffer data.

Available since: 2.38

jsc_value_array_buffer_get_size

Gets the size in bytes of the array buffer.

Available since: 2.38

jsc_value_constructor_call

Invoke new with constructor referenced by value. If first_parameter_type is G_TYPE_NONE no parameters will be passed to the constructor.

jsc_value_constructor_callv

Invoke new with constructor referenced by value. If n_parameters is 0 no parameters will be passed to the constructor.

jsc_value_function_call

Call function referenced by value, passing the given parameters. If first_parameter_type is G_TYPE_NONE no parameters will be passed to the function.

jsc_value_function_callv

Call function referenced by value, passing the given parameters. If n_parameters is 0 no parameters will be passed to the function.

jsc_value_get_context

Get the JSCContext in which value was created.

jsc_value_is_array

Get whether the value referenced by value is an array.

jsc_value_is_array_buffer

Check whether the value is an %ArrayBuffer.

Available since: 2.38

jsc_value_is_boolean

Get whether the value referenced by value is a boolean.

jsc_value_is_constructor

Get whether the value referenced by value is a constructor.

jsc_value_is_function

Get whether the value referenced by value is a function.

jsc_value_is_null

Get whether the value referenced by value is null.

jsc_value_is_number

Get whether the value referenced by value is a number.

jsc_value_is_object

Get whether the value referenced by value is an object.

jsc_value_is_string

Get whether the value referenced by value is a string.

jsc_value_is_typed_array

Determines whether a value is a typed array.

Available since: 2.38

jsc_value_is_undefined

Get whether the value referenced by value is undefined.

jsc_value_new_typed_array_with_buffer

Create a new typed array value with elements from an array buffer.

Available since: 2.38

jsc_value_object_define_property_accessor

Define or modify a property with property_name in object referenced by value. When the property value needs to be getted or set, getter and setter callbacks will be called. When the property is cleared in the JSCClass context, destroy_notify is called with user_data as parameter. This is equivalent to JavaScript Object.defineProperty() when used with an accessor descriptor.

jsc_value_object_define_property_data

Define or modify a property with property_name in object referenced by value. This is equivalent to JavaScript Object.defineProperty() when used with a data descriptor.

jsc_value_object_delete_property

Try to delete property with name from value. This function will return FALSE if the property was defined without JSC_VALUE_PROPERTY_CONFIGURABLE flag.

jsc_value_object_enumerate_properties

Get the list of property names of value. Only properties defined with JSC_VALUE_PROPERTY_ENUMERABLE flag will be collected.

jsc_value_object_get_property

Get property with name from value.

jsc_value_object_get_property_at_index

Get property at index from value.

jsc_value_object_has_property

Get whether value has property with name.

jsc_value_object_invoke_method

Invoke method with name on object referenced by value, passing the given parameters. If first_parameter_type is G_TYPE_NONE no parameters will be passed to the method. The object instance will be handled automatically even when the method is a custom one registered with jsc_class_add_method(), so it should never be passed explicitly as parameter of this function.

jsc_value_object_invoke_methodv

Invoke method with name on object referenced by value, passing the given parameters. If n_parameters is 0 no parameters will be passed to the method. The object instance will be handled automatically even when the method is a custom one registered with jsc_class_add_method(), so it should never be passed explicitly as parameter of this function.

jsc_value_object_is_instance_of

Get whether the value referenced by value is an instance of class name.

jsc_value_object_set_property

Set property with name on value.

jsc_value_object_set_property_at_index

Set property at index on value.

jsc_value_to_boolean

Convert value to a boolean.

jsc_value_to_double

Convert value to a double.

jsc_value_to_int32

Convert value to a #gint32.

jsc_value_to_json

Create a JSON string of value serialization. If indent is 0, the resulting JSON will not contain newlines. The size of the indent is clamped to 10 spaces.

Available since: 2.28

jsc_value_to_string

Convert value to a string. Use jsc_value_to_string_as_bytes() instead, if you need to handle strings containing null characters.

jsc_value_to_string_as_bytes

Convert value to a string and return the results as GBytes. This is needed to handle strings with null characters.

jsc_value_typed_array_get_buffer

Obtain the %ArrayBuffer for the memory region of the typed array elements.

Available since: 2.38

jsc_value_typed_array_get_data

Obtains a pointer to the memory region that holds the elements of the typed array; modifications done to them will be visible to JavaScript code. If length is not NULL, the number of elements contained in the typed array are also stored in the pointed location.

Available since: 2.38

Methods inherited from GObject (43)

Please see GObject for a full list of methods.

Properties

JavaScriptCore.Value:context

The JSCContext in which the value was created.

Signals

Signals inherited from GObject (1)

GObject.Object::notify

The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.

Class structure

struct JavaScriptCoreValueClass {
  GObjectClass parent_class;
  void (* _jsc_reserved0) (
void
  );
  void (* _jsc_reserved1) (
void
  );
  void (* _jsc_reserved2) (
void
  );
  void (* _jsc_reserved3) (
void
  );
  
}

Class members

`parent_class`	`GObjectClass`
	No description available.
`_jsc_reserved0`	`void (* _jsc_reserved0) ( void )`
	No description available.
`_jsc_reserved1`	`void (* _jsc_reserved1) ( void )`
	No description available.
`_jsc_reserved2`	`void (* _jsc_reserved2) ( void )`
	No description available.
`_jsc_reserved3`	`void (* _jsc_reserved3) ( void )`
	No description available.