private void ProjectMethods(JsValue target, Type type, bool instance) { string typeName = type.FullName; BindingFlags defaultBindingFlags = ReflectionHelpers.GetDefaultBindingFlags(instance); MethodInfo[] methods = type.GetMethods(defaultBindingFlags); IEnumerable <IGrouping <string, MethodInfo> > methodGroups = methods.GroupBy(m => m.Name); foreach (IGrouping <string, MethodInfo> methodGroup in methodGroups) { string methodName = methodGroup.Key; MethodInfo[] methodCandidates = methodGroup.ToArray(); JsNativeFunction nativeFunction = (callee, isConstructCall, args, argCount, callbackData) => { JsValue thisValue = args[0]; JsValue undefinedValue = JsValue.Undefined; object thisObj = null; if (instance) { if (!thisValue.HasExternalData) { JsValue errorValue = JsErrorHelpers.CreateTypeError( string.Format(Strings.Runtime_InvalidThisContextForHostObjectMethod, methodName)); JsErrorHelpers.SetException(errorValue); return(undefinedValue); } thisObj = MapToHostType(thisValue); } object[] processedArgs = MapToHostType(args.Skip(1).ToArray()); var bestFitMethod = (MethodInfo)ReflectionHelpers.GetBestFitMethod( methodCandidates, processedArgs); if (bestFitMethod == null) { JsValue errorValue = JsErrorHelpers.CreateReferenceError( string.Format(Strings.Runtime_SuitableMethodOfHostObjectNotFound, methodName)); JsErrorHelpers.SetException(errorValue); return(undefinedValue); } ReflectionHelpers.FixArgumentTypes(ref processedArgs, bestFitMethod.GetParameters()); object result; try { result = bestFitMethod.Invoke(thisObj, processedArgs); } catch (Exception e) { string errorMessage = instance ? string.Format( Strings.Runtime_HostObjectMethodInvocationFailed, methodName, e.Message) : string.Format( Strings.Runtime_HostTypeMethodInvocationFailed, methodName, typeName, e.Message) ; JsValue errorValue = JsErrorHelpers.CreateError(errorMessage); JsErrorHelpers.SetException(errorValue); return(undefinedValue); } JsValue resultValue = MapToScriptType(result); return(resultValue); }; _nativeFunctions.Add(nativeFunction); JsValue methodValue = JsValue.CreateFunction(nativeFunction); target.SetProperty(methodName, methodValue, true); } }
private void ProjectProperties(JsValue target, Type type, bool instance) { string typeName = type.FullName; BindingFlags defaultBindingFlags = ReflectionHelpers.GetDefaultBindingFlags(instance); PropertyInfo[] properties = type.GetProperties(defaultBindingFlags); foreach (PropertyInfo property in properties) { string propertyName = property.Name; JsValue descriptorValue = JsValue.CreateObject(); descriptorValue.SetProperty("enumerable", JsValue.True, true); if (property.GetGetMethod() != null) { JsNativeFunction nativeFunction = (callee, isConstructCall, args, argCount, callbackData) => { JsValue thisValue = args[0]; JsValue undefinedValue = JsValue.Undefined; object thisObj = null; if (instance) { if (!thisValue.HasExternalData) { JsValue errorValue = JsErrorHelpers.CreateTypeError( string.Format(Strings.Runtime_InvalidThisContextForHostObjectProperty, propertyName)); JsErrorHelpers.SetException(errorValue); return(undefinedValue); } thisObj = MapToHostType(thisValue); } object result; try { result = property.GetValue(thisObj, new object[0]); } catch (Exception e) { string errorMessage = instance ? string.Format( Strings.Runtime_HostObjectPropertyGettingFailed, propertyName, e.Message) : string.Format( Strings.Runtime_HostTypePropertyGettingFailed, propertyName, typeName, e.Message) ; JsValue errorValue = JsErrorHelpers.CreateError(errorMessage); JsErrorHelpers.SetException(errorValue); return(undefinedValue); } JsValue resultValue = MapToScriptType(result); return(resultValue); }; _nativeFunctions.Add(nativeFunction); JsValue getMethodValue = JsValue.CreateFunction(nativeFunction); descriptorValue.SetProperty("get", getMethodValue, true); } if (property.GetSetMethod() != null) { JsNativeFunction nativeFunction = (callee, isConstructCall, args, argCount, callbackData) => { JsValue thisValue = args[0]; JsValue undefinedValue = JsValue.Undefined; object thisObj = null; if (instance) { if (!thisValue.HasExternalData) { JsValue errorValue = JsErrorHelpers.CreateTypeError( string.Format(Strings.Runtime_InvalidThisContextForHostObjectProperty, propertyName)); JsErrorHelpers.SetException(errorValue); return(undefinedValue); } thisObj = MapToHostType(thisValue); } object value = MapToHostType(args.Skip(1).First()); ReflectionHelpers.FixPropertyValueType(ref value, property); try { property.SetValue(thisObj, value, new object[0]); } catch (Exception e) { string errorMessage = instance ? string.Format( Strings.Runtime_HostObjectPropertySettingFailed, propertyName, e.Message) : string.Format( Strings.Runtime_HostTypePropertySettingFailed, propertyName, typeName, e.Message) ; JsValue errorValue = JsErrorHelpers.CreateError(errorMessage); JsErrorHelpers.SetException(errorValue); return(undefinedValue); } return(undefinedValue); }; _nativeFunctions.Add(nativeFunction); JsValue setMethodValue = JsValue.CreateFunction(nativeFunction); descriptorValue.SetProperty("set", setMethodValue, true); } target.DefineProperty(propertyName, descriptorValue); } }