public static CreateExternalObject ( |
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data | External data that the object will represent. May be null | |
finalizer | JsObjectFinalizeCallback | The callback for when the object is finalized. May be null. |
return |
private EmbeddedObject CreateEmbeddedFunction(Delegate del) { JsNativeFunction nativeFunction = (callee, isConstructCall, args, argCount, callbackData) => { #if NET40 MethodInfo method = del.Method; #else MethodInfo method = del.GetMethodInfo(); #endif ParameterInfo[] parameters = method.GetParameters(); object[] processedArgs = GetHostItemMemberArguments(args, parameters.Length); ReflectionHelpers.FixArgumentTypes(ref processedArgs, parameters); object result; try { result = del.DynamicInvoke(processedArgs); } catch (Exception e) { JsValue undefinedValue = JsValue.Undefined; Exception exception = UnwrapException(e); var wrapperException = exception as WrapperException; JsValue errorValue = wrapperException != null? CreateErrorFromWrapperException(wrapperException) : JsErrorHelpers.CreateError(string.Format( Strings.Runtime_HostDelegateInvocationFailed, exception.Message)) ; JsContext.SetException(errorValue); return(undefinedValue); } JsValue resultValue = MapToScriptType(result); return(resultValue); }; GCHandle delHandle = GCHandle.Alloc(del); IntPtr delPtr = GCHandle.ToIntPtr(delHandle); JsValue objValue = JsValue.CreateExternalObject(delPtr, _embeddedObjectFinalizeCallback); JsValue functionValue = JsValue.CreateFunction(nativeFunction); SetNonEnumerableProperty(functionValue, ExternalObjectPropertyName, objValue); var embeddedObject = new EmbeddedObject(del, functionValue, new List <JsNativeFunction> { nativeFunction }); return(embeddedObject); }
private EmbeddedObject CreateEmbeddedObject(object obj) { GCHandle objHandle = GCHandle.Alloc(obj); IntPtr objPtr = GCHandle.ToIntPtr(objHandle); JsValue objValue = JsValue.CreateExternalObject(objPtr, _embeddedObjectFinalizeCallback); var embeddedObject = new EmbeddedObject(obj, objValue); ProjectFields(embeddedObject); ProjectProperties(embeddedObject); ProjectMethods(embeddedObject); FreezeObject(objValue); return(embeddedObject); }
private EmbeddedType CreateEmbeddedType(Type type) { #if NET40 Type typeInfo = type; #else TypeInfo typeInfo = type.GetTypeInfo(); #endif string typeName = type.FullName; BindingFlags defaultBindingFlags = ReflectionHelpers.GetDefaultBindingFlags(true); ConstructorInfo[] constructors = type.GetConstructors(defaultBindingFlags); JsNativeFunction nativeConstructorFunction = (callee, isConstructCall, args, argCount, callbackData) => { object result; JsValue resultValue; object[] processedArgs = GetHostItemMemberArguments(args); if (processedArgs.Length == 0 && typeInfo.IsValueType) { result = Activator.CreateInstance(type); resultValue = MapToScriptType(result); return(resultValue); } if (constructors.Length == 0) { CreateAndSetError(string.Format(Strings.Runtime_HostTypeConstructorNotFound, typeName)); return(JsValue.Undefined); } var bestFitConstructor = (ConstructorInfo)ReflectionHelpers.GetBestFitMethod( constructors, processedArgs); if (bestFitConstructor == null) { CreateAndSetReferenceError(string.Format( Strings.Runtime_SuitableConstructorOfHostTypeNotFound, typeName)); return(JsValue.Undefined); } ReflectionHelpers.FixArgumentTypes(ref processedArgs, bestFitConstructor.GetParameters()); try { result = bestFitConstructor.Invoke(processedArgs); } catch (Exception e) { Exception exception = UnwrapException(e); var wrapperException = exception as WrapperException; JsValue errorValue = wrapperException != null? CreateErrorFromWrapperException(wrapperException) : JsErrorHelpers.CreateError(string.Format( Strings.Runtime_HostTypeConstructorInvocationFailed, typeName, exception.Message)) ; JsErrorHelpers.SetException(errorValue); return(JsValue.Undefined); } resultValue = MapToScriptType(result); return(resultValue); }; GCHandle embeddedTypeHandle = GCHandle.Alloc(type); IntPtr embeddedTypePtr = GCHandle.ToIntPtr(embeddedTypeHandle); JsValue objValue = JsValue.CreateExternalObject(embeddedTypePtr, _embeddedTypeFinalizeCallback); JsValue typeValue = JsValue.CreateFunction(nativeConstructorFunction); SetNonEnumerableProperty(typeValue, ExternalObjectPropertyName, objValue); var embeddedType = new EmbeddedType(type, typeValue, new List <JsNativeFunction> { nativeConstructorFunction }); ProjectFields(embeddedType); ProjectProperties(embeddedType); ProjectMethods(embeddedType); FreezeObject(typeValue); return(embeddedType); }