59 // Called when ToLocalChecked is called on an empty Local.
64  * A stack-allocated class that governs a number of local handles.
65  * After a handle scope has been created, all local handles will be
72  * After the handle scope of a local handle has been deleted the
115   // Local::New uses CreateHandle with an Isolate* parameter.
117   friend class Local;  variable
136  * There are two types of handles: local and persistent handles.
138  * Local handles are light-weight and transient and typically used in local
141  * inside of the HandleScope active during their creation. For passing a local
150  * handle (for instance, to extract the Object* from a Local<Object>); the value
155 class Local {
157   V8_INLINE Local() : val_(nullptr) {}  in Local()  function
159   V8_INLINE Local(Local<S> that) : val_(reinterpret_cast<T*>(*that)) {  in Local()  function
162      * handles. For example, converting from a Local<String> to a  in Local()
163      * Local<Number>.  in Local()
193   V8_INLINE bool operator==(const Local<S>& that) const {
221   V8_INLINE bool operator!=(const Local<S>& that) const {
231    * Cast a handle to a subclass, e.g. Local<Value> to Local<Object>.
236   V8_INLINE static Local<T> Cast(Local<S> that) {  in Cast()
240     if (that.IsEmpty()) return Local<T>();  in Cast()
242     return Local<T>(T::Cast(*that));  in Cast()
246    * Calling this is equivalent to Local<S>::Cast().
251   V8_INLINE Local<S> As() const {  in As()
252     return Local<S>::Cast(*this);  in As()
256    * Create a local handle for the content of another handle.
257    * The referee is kept alive by the local handle even when
260   V8_INLINE static Local<T> New(Isolate* isolate, Local<T> that) {  in New()
264   V8_INLINE static Local<T> New(Isolate* isolate,  in New()
269   V8_INLINE static Local<T> New(Isolate* isolate,  in New()
284   friend class Local;  variable
298   friend Local<Primitive> Undefined(Isolate* isolate);
299   friend Local<Primitive> Null(Isolate* isolate);
300   friend Local<Boolean> True(Isolate* isolate);
301   friend Local<Boolean> False(Isolate* isolate);
317   explicit V8_INLINE Local(T* that) : val_(that) {}  in Local()  function
318   V8_INLINE static Local<T> New(Isolate* isolate, T* that) {  in New()
319     if (that == nullptr) return Local<T>();  in New()
322     return Local<T>(reinterpret_cast<T*>(HandleScope::CreateHandle(  in New()
329 // Handle is an alias for Local for historical reasons.
331 using Handle = Local<T>;
335  * A MaybeLocal<> is a wrapper around Local<> that enforces a check whether
336  * the Local<> is empty before it can be used.
349   V8_INLINE MaybeLocal(Local<S> that) : val_(reinterpret_cast<T*>(*that)) {  in MaybeLocal()
356    * Converts this MaybeLocal<> to a Local<>. If this MaybeLocal<> is empty,
360   V8_WARN_UNUSED_RESULT V8_INLINE bool ToLocal(Local<S>* out) const {  in ToLocal()
366    * Converts this MaybeLocal<> to a Local<>. If this MaybeLocal<> is empty,
369   V8_INLINE Local<T> ToLocalChecked() {  in ToLocalChecked()
371     return Local<T>(val_);  in ToLocalChecked()
375    * Converts this MaybeLocal<> to a Local<>, using a default value if this
379   V8_INLINE Local<S> FromMaybe(Local<S> default_value) const {  in FromMaybe()
380     return IsEmpty() ? default_value : Local<S>(val_);  in FromMaybe()
401   V8_INLINE Local<T> Escape(Local<T> value) {  in Escape()
404     return Local<T>(reinterpret_cast<T*>(slot));  in Escape()
409     return Escape(value.FromMaybe(Local<T>()));  in EscapeMaybe()