Namespace

JavaScriptCore – 4.1

The JavaScriptCore library

Version2.42.5
AuthorsThe WebKit GTK and WPE teams
LicenseBSD, LGPL-2.1
Websitehttps://webkit.org
Source

Build

C headersjsc/jsc.h
pkg-config filesjavascriptcoregtk-4.1

Dependencies

GObject—2.0 The base type system library
Browse documentation

Additional documentation

Classes

Class

A JSSClass represents a custom JavaScript class registered by the user in a JSCContext. It allows to create new JavaScripts objects whose instances are created by the user using this API. It’s possible to add constructors, properties and methods for a JSSClass by providing GCallbacks to implement them.

Context

JSCContext represents a JavaScript execution context, where all operations take place and where the values will be associated.

Exception

JSCException represents a JavaScript exception.

Value

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

VirtualMachine

JSCVirtualMachine represents a group of JSCContexts. It allows concurrent JavaScript execution by creating a different instance of JSCVirtualMachine in each thread.

WeakValue

JSCWeakValue represents a weak reference to a value in a JSCContext. It can be used to keep a reference to a JavaScript value without protecting it from being garbage collected and without referencing the JSCContext either.

Structs

ClassVTable

Virtual table for a JSCClass. This can be optionally used when registering a JSCClass in a JSCContext to provide a custom implementation for the class. All virtual functions are optional and can be set to NULL to fallback to the default implementation.

Enumerations

CheckSyntaxMode

Enum values to specify a mode to check for syntax errors in jsc_context_check_syntax().

CheckSyntaxResult

Enum values to specify the result of jsc_context_check_syntax().

OptionType

Enum values for options types.

since: 2.24

TypedArrayType

Possible types of the elements contained in a typed array.

since: 2.38

Bitfields

ValuePropertyFlags

Flags used when defining properties with jsc_value_object_define_property_data() and jsc_value_object_define_property_accessor().

Callbacks

ClassDeletePropertyFunction

The type of delete_property in JSCClassVTable. This is only required when you need to handle external properties not added to the prototype.

ClassEnumeratePropertiesFunction

The type of enumerate_properties in JSCClassVTable. This is only required when you need to handle external properties not added to the prototype.

ClassGetPropertyFunction

The type of get_property in JSCClassVTable. This is only required when you need to handle external properties not added to the prototype.

ClassHasPropertyFunction

The type of has_property in JSCClassVTable. This is only required when you need to handle external properties not added to the prototype.

ClassSetPropertyFunction

The type of set_property in JSCClassVTable. This is only required when you need to handle external properties not added to the prototype.

ExceptionHandler

Function used to handle JavaScript exceptions in a JSCContext.

OptionsFunc

Function used to iterate options.

since: 2.24

Functions

get_major_version

Returns the major version number of the JavaScriptCore library. (e.g. in JavaScriptCore version 1.8.3 this is 1.)

get_micro_version

Returns the micro version number of the JavaScriptCore library. (e.g. in JavaScriptCore version 1.8.3 this is 3.)

get_minor_version

Returns the minor version number of the JavaScriptCore library. (e.g. in JavaScriptCore version 1.8.3 this is 8.)

options_foreach

Iterates all available options calling function for each one. Iteration can stop early if function returns FALSE.

since: 2.24

options_get_boolean

Get option as a #gboolean value.

since: 2.24

options_get_double

Get option as a #gdouble value.

since: 2.24

options_get_int

Get option as a #gint value.

since: 2.24

options_get_option_group

Create a GOptionGroup to handle JSCOptions as command line arguments. The options will be exposed as command line arguments with the form —jsc-<option>=<value>. Each entry in the returned GOptionGroup is configured to apply the corresponding option during command line parsing. Applications only need to pass the returned group to g_option_context_add_group(), and the rest will be taken care for automatically.

since: 2.24

options_get_range_string

Get option as a range string. The string must be in the format [!]<low>[:<high>] where low and high are #guint values. Values between low and high (both included) will be considered in the range, unless ! is used to invert the range.

since: 2.24

options_get_size

Get option as a #gsize value.

since: 2.24

options_get_string

Get option as a string.

since: 2.24

options_get_uint

Get option as a #guint value.

since: 2.24

options_set_boolean

Set option as a #gboolean value.

since: 2.24

options_set_double

Set option as a #gdouble value.

since: 2.24

options_set_int

Set option as a #gint value.

since: 2.24

options_set_range_string

Set option as a range string. The string must be in the format [!]<low>[:<high>] where low and high are #guint values. Values between low and high (both included) will be considered in the range, unless ! is used to invert the range.

since: 2.24

options_set_size

Set option as a #gsize value.

since: 2.24

options_set_string

Set option as a string.

since: 2.24

options_set_uint

Set option as a #guint value.

since: 2.24

Function Macros

CHECK_VERSION

Check the version of JSC header files at compile time.

DECLARE_FINAL_TYPE

Constants

MAJOR_VERSION

Like jsc_get_major_version(), but from the headers used at application compile time, rather than from the library linked against at application run time.

MICRO_VERSION

Like jsc_get_micro_version(), but from the headers used at application compile time, rather than from the library linked against at application run time.

MINOR_VERSION

Like jsc_get_minor_version(), but from the headers used at application compile time, rather than from the library linked against at application run time.

OPTIONS_USE_DFG

Allows the DFG JIT to be used if TRUE. Option type: JSC_OPTION_BOOLEAN Default value: TRUE.

OPTIONS_USE_FTL

Allows the FTL JIT to be used if TRUE. Option type: JSC_OPTION_BOOLEAN Default value: TRUE.

OPTIONS_USE_JIT

Allows the executable pages to be allocated for JIT and thunks if TRUE. Option type: JSC_OPTION_BOOLEAN Default value: TRUE.

OPTIONS_USE_LLINT

Allows the LLINT to be used if TRUE. Option type: JSC_OPTION_BOOLEAN Default value: TRUE.