/// <summary>
/// Creates a new <c>Object</c> that stores some external data
/// </summary>
/// <remarks>
/// Requires an active script context.
/// </remarks>
/// <param name="data">External data that the object will represent. May be null.</param>
/// <param name="finalizer">The callback for when the object is finalized. May be null.</param>
/// <returns>The new <c>Object</c></returns>
public static JsValue CreateExternalObject(IntPtr data, JsFinalizeCallback finalizer)
{
JsValue reference;
JsErrorHelpers.ThrowIfError(NativeMethods.JsCreateExternalObject(data, finalizer, out reference));
return(reference);
}
static JavaScriptEngine()
{
NativeCallback = NativeCallbackThunk;
NativeCallbackPtr = Marshal.GetFunctionPointerForDelegate(NativeCallback);
FinalizerCallback = FinalizerCallbackThunk;
FinalizerCallbackPtr = Marshal.GetFunctionPointerForDelegate(FinalizerCallback);
}
static JavaScriptEngine()
{
NativeCallback = NativeCallbackThunk;
NativeCallbackPtr = Marshal.GetFunctionPointerForDelegate(NativeCallback);
FinalizerCallback = FinalizerCallbackThunk;
FinalizerCallbackPtr = Marshal.GetFunctionPointerForDelegate(FinalizerCallback);
}
/// <summary>
/// Disposes a type mapper
/// </summary>
public void Dispose()
{
if (_disposedFlag.Set())
{
var lazyEmbeddedObjects = _lazyEmbeddedObjects;
if (lazyEmbeddedObjects != null)
{
if (lazyEmbeddedObjects.Count > 0)
{
foreach (EmbeddedObjectKey key in lazyEmbeddedObjects.Keys)
{
Lazy <EmbeddedObject> lazyEmbeddedObject;
if (lazyEmbeddedObjects.TryGetValue(key, out lazyEmbeddedObject))
{
lazyEmbeddedObject.Value?.Dispose();
}
}
lazyEmbeddedObjects.Clear();
}
_lazyEmbeddedObjects = null;
}
_embeddedObjectFinalizeCallback = null;
var lazyEmbeddedTypes = _lazyEmbeddedTypes;
if (lazyEmbeddedTypes != null)
{
if (lazyEmbeddedTypes.Count > 0)
{
foreach (string key in lazyEmbeddedTypes.Keys)
{
Lazy <EmbeddedType> lazyEmbeddedType;
if (lazyEmbeddedTypes.TryGetValue(key, out lazyEmbeddedType))
{
lazyEmbeddedType.Value?.Dispose();
}
}
lazyEmbeddedTypes.Clear();
}
_lazyEmbeddedTypes = null;
}
_embeddedTypeFinalizeCallback = null;
}
}
/// <summary>
/// Creates a JavaScript value from an host object if the it does not already exist
/// </summary>
/// <param name="obj">Instance of host type</param>
/// <returns>JavaScript value created from an host object</returns>
public JsValue GetOrCreateScriptObject(object obj)
{
if (!_embeddedObjectStorageInitialized)
{
lock (_embeddedObjectStorageInitializationSynchronizer)
{
if (!_embeddedObjectStorageInitialized)
{
_lazyEmbeddedObjects = new ConcurrentDictionary <EmbeddedObjectKey, Lazy <EmbeddedObject> >();
_embeddedObjectFinalizeCallback = EmbeddedObjectFinalizeCallback;
_embeddedObjectStorageInitialized = true;
}
}
}
var embeddedObjectKey = new EmbeddedObjectKey(obj);
EmbeddedObject embeddedObject = _lazyEmbeddedObjects.GetOrAdd(
embeddedObjectKey,
key => new Lazy <EmbeddedObject>(() => CreateEmbeddedObjectOrFunction(obj))
).Value;
return(embeddedObject.ScriptValue);
}
/// <summary>
/// Creates a JavaScript value from an host type if the it does not already exist
/// </summary>
/// <param name="type">Host type</param>
/// <returns>JavaScript value created from an host type</returns>
public JsValue GetOrCreateScriptType(Type type)
{
if (!_embeddedTypeStorageInitialized)
{
lock (_embeddedTypeStorageInitializationSynchronizer)
{
if (!_embeddedTypeStorageInitialized)
{
_lazyEmbeddedTypes = new ConcurrentDictionary <string, Lazy <EmbeddedType> >();
_embeddedTypeFinalizeCallback = EmbeddedTypeFinalizeCallback;
_embeddedTypeStorageInitialized = true;
}
}
}
string embeddedTypeKey = type.AssemblyQualifiedName;
EmbeddedType embeddedType = _lazyEmbeddedTypes.GetOrAdd(
embeddedTypeKey,
key => new Lazy <EmbeddedType>(() => CreateEmbeddedType(type))
).Value;
return(embeddedType.ScriptValue);
}
public static extern JsErrorCode JsCreateCustomExternalObject(IntPtr data, ulong inlineSlotSize, JsTraceCallback traceCallback, JsFinalizeCallback finalizeCallback, ref JsGetterSetterInterceptor getterSetterInterceptor, JsValueRef prototype, out JsValueRef @object);
public static extern JsErrorCode JsCreateTracedExternalObject(IntPtr data, ulong inlineSlotSize, JsTraceCallback traceCallback, JsFinalizeCallback finalizeCallback, JsValueRef prototype, out JsValueRef @object);
public static extern JsErrorCode JsCreateExternalObjectWithPrototype(IntPtr data, JsFinalizeCallback finalizeCallback, JsValueRef prototype, out JsValueRef @object);
public static extern JsErrorCode JsCreateExternalArrayBuffer(IntPtr data, uint byteLength, JsFinalizeCallback finalizeCallback, IntPtr callbackState, out JsValueRef result);
public static extern JsErrorCode JsCreateExternalObject(IntPtr data, JsFinalizeCallback finalizeCallback, out JsValueRef @object);
internal static extern JsErrorCode JsCreateExternalObject(IntPtr data, JsFinalizeCallback finalizeCallback, out JsValue obj);
