shaka::impl Namespace Reference

Classes
struct	_callable_identifier
struct	_generic_converter_identifier
struct	_number_identifier
struct	_SelectSpecialTypes
struct	_SelectSpecialTypes< T, util::enable_if_t< std::is_base_of< GenericConverter, T >::value > >
struct	_SelectSpecialTypes< T, util::enable_if_t< util::is_callable< T >::value > >
struct	_SelectSpecialTypes< T, util::enable_if_t< util::is_number< T >::value > >
struct	CallAndSetReturn
struct	CallAndSetReturn< void >
struct	CallHelper
struct	CallHelper< ArgCount, ArgCount >
struct	ConvertHelper
struct	ConvertHelper< bool, void >
struct	ConvertHelper< Func, _callable_identifier >
struct	ConvertHelper< Handle< JsObject >, void >
struct	ConvertHelper< Number, _number_identifier >
struct	ConvertHelper< Player::LogLevel >
struct	ConvertHelper< RefPtr< T > >
struct	ConvertHelper< ReturnVal< T >, void >
struct	ConvertHelper< shaka::BufferedInfo, void >
struct	ConvertHelper< shaka::BufferedRange, void >
struct	ConvertHelper< shaka::DrmInfo, void >
struct	ConvertHelper< shaka::InitDataOverride, void >
struct	ConvertHelper< shaka::LanguageRole, void >
struct	ConvertHelper< shaka::optional< T >, void >
struct	ConvertHelper< shaka::StateChange, void >
struct	ConvertHelper< shaka::Stats, void >
struct	ConvertHelper< shaka::StoredContent, void >
struct	ConvertHelper< shaka::Track, void >
struct	ConvertHelper< shaka::TrackChoice, void >
struct	ConvertHelper< shaka::variant< Types... > >
struct	ConvertHelper< std::string, void >
struct	ConvertHelper< std::unordered_map< Key, Value >, void >
struct	ConvertHelper< std::vector< T >, void >
struct	ConvertHelper< T *, void >
struct	ConvertHelper< T, _generic_converter_identifier >
class	EnumConverter
class	FieldConverter
class	FieldConverterBase
struct	FutureResolver
struct	FutureResolver< void >
struct	get_construct_index
struct	get_create_type
struct	get_create_type< This, decltype(void(&This::Create))>
struct	get_max_size
struct	get_max_size< T, Rest... >
struct	get_max_size<>
struct	get_type_at
struct	get_type_at< 0, T, Choices... >
struct	get_type_at< I, T, Choices... >
struct	get_type_index
struct	get_type_index< T, A, Choices... >
struct	get_type_index< T, T, Choices... >
struct	HandleSetReturn
struct	HandleSetReturn< ExceptionOr< T > >
struct	HandleSetReturn< ExceptionOr< void > >
class	IndexerHandler
class	IndexerHandlerImpl
struct	InternalCallbackData
struct	InternalCallbackDataBase
struct	is_variant
struct	is_variant< variant< Choices... > >
class	JsCallback
class	JsConstructor
struct	JsConstructorCreateOrThrow
struct	JsConstructorCreateOrThrow< This, This *(*)(Args...)>
struct	JsConstructorCreateOrThrow< This, void >
struct	NumberEnumConverter
class	PendingTask
class	PendingTaskBase
class	StringEnumConverter
struct	ThrowError
class	union_
class	union_< T >

Typedefs
template<size_t I, typename... Choices>
using	get_type_at_t = typename get_type_at< I, Choices... >::type
template<size_t I, typename... Choices>
using	get_const_reference_at_t = typename std::add_lvalue_reference< typename std::add_const< typename get_type_at< I, Choices... >::type >::type >::type
template<typename Func >
using	RetOf = typename std::result_of< Func()>::type
template<typename T >
using	RawType = typename std::remove_cv< typename std::remove_reference< T >::type >::type

Functions
bool	ConstructWrapperObject (const CallbackArguments &arguments, BackingObject *that)
template<typename T , typename Arg >
ReturnVal< JsValue >	CreateInternalData (T **extra_data, Arg &&arg)
template<typename Func >
ReturnVal< JsFunction >	CreateJsFunctionFromCallback (const std::string &target, const std::string &name, Func &&callback, bool is_member_func)

Variables
constexpr const char *	kHiddenPropertyName = "$__shaka_extra_data"

Typedef Documentation

get_const_reference_at_t

template<size_t I, typename... Choices>

using shaka::impl::get_const_reference_at_t = typedef typename std::add_lvalue_reference<typename std::add_const< typename get_type_at<I, Choices...>::type>::type>::type

Definition at line 74 of file variant.h.

get_type_at_t

template<size_t I, typename... Choices>

using shaka::impl::get_type_at_t = typedef typename get_type_at<I, Choices...>::type

Definition at line 69 of file variant.h.

RawType

template<typename T >

using shaka::impl::RawType = typedef typename std::remove_cv<typename std::remove_reference<T>::type>::type

Careful, thar be magic here. Only read if you are familiar with template metaprogramming.

This file defines several functions that are used to convert a C++ function to a V8 function. A V8 function accepts a single argument that defines the array of arguments, some internal state, and the return value. This is not convenient with C++ code that accepts positional arguments and returns the value.

First, this checks each argument that is passed in. It tries to convert the argument to the expected type, throwing a JavaScript exception if it cannot do so. Then it calls the C++ function. Finally, if needed, converts the return value and passes back to JavaScript.

These methods all return a boolean. They should return |true| when JavaScript returns normally, or |false| if an exception is thrown.

Definition at line 70 of file register_member.h.

RetOf

template<typename Func >

using shaka::impl::RetOf = typedef typename std::result_of<Func()>::type

Definition at line 47 of file task_runner.h.

Function Documentation

ConstructWrapperObject()

bool shaka::impl::ConstructWrapperObject	(	const CallbackArguments &	arguments,
		BackingObject *	that
	)

This is called when defining a JavaScript constructor. This sets up the resulting JavaScript object and links it to the given backing object.

In V8, the JavaScript object is already created for us (stored in |arguments.This()|). All we need to do is connect it to the backing object by setting its internal fields.

In JSC, this creates a new JavaScript object using |This| to get the correct type. This method then sets the return value of the JavaScript function so the object is passed to JavaScript.

Parameters

arguments	The arguments (including |this| and the return value) to the JavaScript function.
that	The backing object to wrap.

Definition at line 23 of file register_member.cc.

CreateInternalData()

template<typename T , typename Arg >

ReturnVal<JsValue> shaka::impl::CreateInternalData	(	T **	extra_data,
		Arg &&	arg
	)

Creates extra data of the given type that will be passed to the callbacks when it is called. This allows us to pass internal data to specific function objects.

Definition at line 351 of file register_member.h.

CreateJsFunctionFromCallback()

template<typename Func >

ReturnVal<JsFunction> shaka::impl::CreateJsFunctionFromCallback	(	const std::string &	target,
		const std::string &	name,
		Func &&	callback,
		bool	is_member_func
	)

Definition at line 557 of file register_member.h.

Variable Documentation

kHiddenPropertyName

constexpr const char* shaka::impl::kHiddenPropertyName = "$__shaka_extra_data"

Definition at line 319 of file register_member.h.