v8
4.5.103 (node 4.8.7)
V8 is Google's open source JavaScript engine
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#include <v8.h>
Public Member Functions | |
V8_INLINE | Local () |
template<class S > | |
V8_INLINE | Local (Local< S > that) |
V8_INLINE bool | IsEmpty () const |
V8_INLINE void | Clear () |
V8_INLINE T * | operator-> () const |
V8_INLINE T * | operator* () const |
template<class S > | |
V8_INLINE bool | operator== (const Local< S > &that) const |
template<class S > | |
V8_INLINE bool | operator== (const PersistentBase< S > &that) const |
template<class S > | |
V8_INLINE bool | operator!= (const Local< S > &that) const |
template<class S > | |
V8_INLINE bool | operator!= (const Persistent< S > &that) const |
template<class S > | |
V8_INLINE Local< S > | As () |
Static Public Member Functions | |
template<class S > | |
static V8_INLINE Local< T > | Cast (Local< S > that) |
static V8_INLINE Local< T > | New (Isolate *isolate, Local< T > that) |
static V8_INLINE Local< T > | New (Isolate *isolate, const PersistentBase< T > &that) |
Friends | |
class | Utils |
template<class F > | |
class | Eternal |
template<class F > | |
class | PersistentBase |
template<class F , class M > | |
class | Persistent |
template<class F > | |
class | Local |
template<class F > | |
class | MaybeLocal |
template<class F > | |
class | FunctionCallbackInfo |
template<class F > | |
class | PropertyCallbackInfo |
class | String |
class | Object |
class | Context |
template<class F > | |
class | internal::CustomArguments |
class | HandleScope |
class | EscapableHandleScope |
template<class F1 , class F2 , class F3 > | |
class | PersistentValueMapBase |
template<class F1 , class F2 > | |
class | PersistentValueVector |
Local< Primitive > | Undefined (Isolate *isolate) |
Local< Primitive > | Null (Isolate *isolate) |
Local< Boolean > | True (Isolate *isolate) |
Local< Boolean > | False (Isolate *isolate) |
An object reference managed by the v8 garbage collector.
All objects returned from v8 have to be tracked by the garbage collector so that it knows that the objects are still alive. Also, because the garbage collector may move objects, it is unsafe to point directly to an object. Instead, all objects are stored in handles which are known by the garbage collector and updated whenever an object moves. Handles should always be passed by value (except in cases like out-parameters) and they should never be allocated on the heap.
There are two types of handles: local and persistent handles. Local handles are light-weight and transient and typically used in local operations. They are managed by HandleScopes. Persistent handles can be used when storing objects across several independent operations and have to be explicitly deallocated when they're no longer used.
It is safe to extract the object stored in the handle by dereferencing the handle (for instance, to extract the Object* from a Local<Object>); the value will still be governed by a handle behind the scenes and the same rules apply to these values as to their handles.
Definition at line 212 of file v8.h.
Referenced by Extension::GetNativeFunctionTemplate(), Value::ToBoolean(), Value::ToDetailString(), Value::ToInt32(), Value::ToInteger(), Value::ToNumber(), Value::ToObject(), Value::ToString(), and Value::ToUint32().
Definition at line 288 of file v8.h.
References Local< T >::Local.
Definition at line 278 of file v8.h.
References Local< T >::Local.
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Returns true if the handle is empty.
Definition at line 227 of file v8.h.
Referenced by ScriptOrigin::ScriptOrigin().
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Definition at line 236 of file v8.h.
Referenced by Eternal< T >::Get().
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Definition at line 234 of file v8.h.
Referenced by Context::Scope::Scope(), ScriptOrigin::ScriptOrigin(), Script::V8_DEPRECATED(), and Context::Scope::~Scope().
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Definition at line 8116 of file v8.h.
Referenced by Boolean::New().
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Definition at line 306 of file v8.h.
Referenced by Local< T >::As(), FunctionCallbackInfo< T >::Callee(), Local< T >::Cast(), FunctionCallbackInfo< T >::Data(), PropertyCallbackInfo< T >::Data(), String::Empty(), EscapableHandleScope::Escape(), MaybeLocal< T >::FromMaybe(), PersistentValueMapBase< K, V, Traits >::Get(), Eternal< T >::Get(), PersistentValueVector< V, Traits >::Get(), Context::GetEmbedderData(), Object::GetInternalField(), Extension::GetNativeFunctionTemplate(), FunctionCallbackInfo< T >::Holder(), PropertyCallbackInfo< T >::Holder(), PersistentValueMapBase< K, V, Traits >::PersistentValueReference::NewLocal(), FunctionCallbackInfo< T >::operator[](), PersistentValueMap< K, V, Traits >::SetUnique(), GlobalValueMap< K, V, Traits >::SetUnique(), FunctionCallbackInfo< T >::This(), PropertyCallbackInfo< T >::This(), Value::ToBoolean(), Value::ToDetailString(), Value::ToInt32(), Value::ToInteger(), MaybeLocal< T >::ToLocalChecked(), Value::ToNumber(), Value::ToObject(), Value::ToString(), and Value::ToUint32().
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Definition at line 305 of file v8.h.
Referenced by Persistent< T, M >::As(), and Persistent< T, M >::Cast().
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Definition at line 304 of file v8.h.
Referenced by Global< T >::Global(), and Persistent< T, M >::Persistent().
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Definition at line 8107 of file v8.h.
Referenced by Boolean::New().