v8 13.6.233 (node 24.1.0)
V8 is Google's open source JavaScript engine
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Data Structures | Public Member Functions | Protected Member Functions | Static Protected Member Functions
PersistentValueMapBase< K, V, Traits > Class Template Reference

#include <v8-util.h>

Inheritance diagram for PersistentValueMapBase< K, V, Traits >:
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Data Structures

class  PersistentValueReference
 

Public Member Functions

Isolate * GetIsolate ()
 
size_t Size ()
 
bool IsWeak ()
 
Local< V > Get (const K &key)
 
bool Contains (const K &key)
 
bool SetReturnValue (const K &key, ReturnValue< Value > returnValue)
 
Global< V > Remove (const K &key)
 
void Clear ()
 
PersistentValueReference GetReference (const K &key)
 

Protected Member Functions

 PersistentValueMapBase (Isolate *isolate)
 
 PersistentValueMapBase (Isolate *isolate, const char *label)
 
 ~PersistentValueMapBase ()
 
Isolate * isolate ()
 
Traits::Impl * impl ()
 
void RemoveWeak (const K &key)
 
void AnnotateStrongRetainer (Global< V > *persistent)
 

Static Protected Member Functions

static V * FromVal (PersistentContainerValue v)
 
static PersistentContainerValue ClearAndLeak (Global< V > *persistent)
 
static PersistentContainerValue Leak (Global< V > *persistent)
 
static Global< V > Release (PersistentContainerValue v)
 

Detailed Description

template<typename K, typename V, typename Traits>
class v8::PersistentValueMapBase< K, V, Traits >

A map wrapper that allows using Global as a mapped value. C++11 embedders don't need this class, as they can use Global directly in std containers.

The map relies on a backing map, whose type and accessors are described by the Traits class. The backing map will handle values of type PersistentContainerValue, with all conversion into and out of V8 handles being transparently handled by this class.

Definition at line 166 of file v8-util.h.

Constructor & Destructor Documentation

◆ PersistentValueMapBase() [1/2]

template<typename K, typename V, typename Traits>
PersistentValueMapBase ( Isolate * isolate)
inlineexplicitprotected

Definition at line 291 of file v8-util.h.

Referenced by GlobalValueMap< K, V, DefaultGlobalMapTraits< K, V > >::GlobalValueMap(), GlobalValueMap< K, V, DefaultGlobalMapTraits< K, V > >::GlobalValueMap(), PersistentValueMap< K, V, DefaultPersistentValueMapTraits< K, V > >::PersistentValueMap(), and PersistentValueMap< K, V, DefaultPersistentValueMapTraits< K, V > >::PersistentValueMap().

◆ PersistentValueMapBase() [2/2]

template<typename K, typename V, typename Traits>
PersistentValueMapBase ( Isolate * isolate,
const char * label )
inlineprotected

Definition at line 293 of file v8-util.h.

◆ ~PersistentValueMapBase()

template<typename K, typename V, typename Traits>
~PersistentValueMapBase ( )
inlineprotected

Definition at line 296 of file v8-util.h.

Member Function Documentation

◆ AnnotateStrongRetainer()

template<typename K, typename V, typename Traits>
void AnnotateStrongRetainer ( Global< V > * persistent)
inlineprotected

Definition at line 338 of file v8-util.h.

Referenced by GlobalValueMap< K, V, DefaultGlobalMapTraits< K, V > >::SetUnique(), and PersistentValueMap< K, V, DefaultPersistentValueMapTraits< K, V > >::SetUnique().

◆ Clear()

template<typename K, typename V, typename Traits>
void Clear ( )
inline

Traverses the map repeatedly, in case side effects of disposal cause insertions.

Definition at line 218 of file v8-util.h.

Referenced by PersistentValueReference< K, V, Traits >::~PersistentValueMapBase().

◆ ClearAndLeak()

template<typename K, typename V, typename Traits>
static PersistentContainerValue ClearAndLeak ( Global< V > * persistent)
inlinestaticprotected

Definition at line 306 of file v8-util.h.

Referenced by GlobalValueMap< K, V, DefaultGlobalMapTraits< K, V > >::SetUnique(), and PersistentValueMap< K, V, DefaultPersistentValueMapTraits< K, V > >::SetUnique().

◆ Contains()

template<typename K, typename V, typename Traits>
bool Contains ( const K & key)
inline

Check whether a value is contained in the map.

Definition at line 194 of file v8-util.h.

◆ FromVal()

template<typename K, typename V, typename Traits>
static V * FromVal ( PersistentContainerValue v)
inlinestaticprotected

Definition at line 301 of file v8-util.h.

Referenced by PersistentValueReference< K, V, Traits >::Get().

◆ Get()

template<typename K, typename V, typename Traits>
Local< V > Get ( const K & key)
inline

Get value stored in map.

Definition at line 183 of file v8-util.h.

◆ GetIsolate()

template<typename K, typename V, typename Traits>
Isolate * GetIsolate ( )
inline

Definition at line 168 of file v8-util.h.

◆ GetReference()

template<typename K, typename V, typename Traits>
PersistentValueReference GetReference ( const K & key)
inline

Get a reference to a map value. This enables fast, repeated access to a value stored in the map while the map remains unchanged.

Careful: This is potentially unsafe, so please use with care. The value will become invalid if the value for this key changes in the underlying map, as a result of Set or Remove for the same key; as a result of the weak callback for the same key; or as a result of calling Clear() or destruction of the map.

Definition at line 286 of file v8-util.h.

◆ impl()

template<typename K, typename V, typename Traits>
Traits::Impl * impl ( )
inlineprotected

Definition at line 299 of file v8-util.h.

Referenced by GlobalValueMap< K, V, DefaultGlobalMapTraits< K, V > >::SetUnique(), and PersistentValueMap< K, V, DefaultPersistentValueMapTraits< K, V > >::SetUnique().

◆ isolate()

template<typename K, typename V, typename Traits>
Isolate * isolate ( )
inlineprotected

Definition at line 298 of file v8-util.h.

Referenced by GlobalValueMap< K, V, DefaultGlobalMapTraits< K, V > >::GlobalValueMap(), GlobalValueMap< K, V, DefaultGlobalMapTraits< K, V > >::GlobalValueMap(), PersistentValueMapBase< K, V, Traits >::PersistentValueReference::NewLocal(), PersistentValueMap< K, V, DefaultPersistentValueMapTraits< K, V > >::PersistentValueMap(), PersistentValueMap< K, V, DefaultPersistentValueMapTraits< K, V > >::PersistentValueMap(), GlobalValueMap< K, V, DefaultGlobalMapTraits< K, V > >::Set(), PersistentValueMap< K, V, DefaultPersistentValueMapTraits< K, V > >::Set(), GlobalValueMap< K, V, DefaultGlobalMapTraits< K, V > >::SetUnique(), PersistentValueMap< K, V, DefaultPersistentValueMapTraits< K, V > >::SetUnique(), StdGlobalValueMap< K, V, Traits >::StdGlobalValueMap(), and StdPersistentValueMap< K, V, Traits >::StdPersistentValueMap().

◆ IsWeak()

template<typename K, typename V, typename Traits>
bool IsWeak ( )
inline

Return whether the map holds weak persistents.

Definition at line 178 of file v8-util.h.

◆ Leak()

template<typename K, typename V, typename Traits>
static PersistentContainerValue Leak ( Global< V > * persistent)
inlinestaticprotected

Definition at line 312 of file v8-util.h.

Referenced by GlobalValueMap< K, V, DefaultGlobalMapTraits< K, V > >::Set(), and PersistentValueMap< K, V, DefaultPersistentValueMapTraits< K, V > >::Set().

◆ Release()

template<typename K, typename V, typename Traits>
static Global< V > Release ( PersistentContainerValue v)
inlinestaticprotected

Return a container value as Global and make sure the weak callback is properly disposed of. All remove functionality should go through this.

Definition at line 321 of file v8-util.h.

Referenced by PersistentValueReference< K, V, Traits >::Clear(), PersistentValueReference< K, V, Traits >::Remove(), GlobalValueMap< K, V, DefaultGlobalMapTraits< K, V > >::SetUnique(), and PersistentValueMap< K, V, DefaultPersistentValueMapTraits< K, V > >::SetUnique().

◆ Remove()

template<typename K, typename V, typename Traits>
Global< V > Remove ( const K & key)
inline

Return value for key and remove it from the map.

Definition at line 210 of file v8-util.h.

◆ RemoveWeak()

template<typename K, typename V, typename Traits>
void RemoveWeak ( const K & key)
inlineprotected

Definition at line 331 of file v8-util.h.

◆ SetReturnValue()

template<typename K, typename V, typename Traits>
bool SetReturnValue ( const K & key,
ReturnValue< Value > returnValue )
inline

Get value stored in map and set it in returnValue. Return true if a value was found.

Definition at line 202 of file v8-util.h.

◆ Size()

template<typename K, typename V, typename Traits>
size_t Size ( )
inline

Return size of the map.

Definition at line 173 of file v8-util.h.

The documentation for this class was generated from the following files: