static FormatterCache()
{
var ti = typeof(T);
if (ti.IsNullable())
{
#if NET40
ti = ti.GenericTypeArguments()[0];
#else
ti = ti.GenericTypeArguments[0];
#endif
var innerFormatter = DynamicUnionResolver.Instance.GetFormatterDynamic(ti);
if (innerFormatter == null)
{
return;
}
formatter = (IMessagePackFormatter <T>)ActivatorUtils.CreateInstance(typeof(StaticNullableFormatter <>).GetCachedGenericType(ti), new object[] { innerFormatter });
return;
}
var formatterTypeInfo = BuildType(typeof(T));
if (formatterTypeInfo == null)
{
return;
}
formatter = (IMessagePackFormatter <T>)ActivatorUtils.FastCreateInstance(formatterTypeInfo.AsType());
}
private object GetValue(object obj, int index)
{
PropertyInfo prop;
FieldInfo field;
if ((prop = members[index] as PropertyInfo) != null)
{
if (obj == null)
{
// ## 苦竹 修改 ##
//return Helpers.IsValueType(prop.PropertyType) ? Activator.CreateInstance(prop.PropertyType) : null;
return(Helpers.IsValueType(prop.PropertyType) ? ActivatorUtils.FastCreateInstance(prop.PropertyType) : null);
}
return(prop.GetValue(obj, null));
}
else if ((field = members[index] as FieldInfo) != null)
{
if (obj == null)
{
// ## 苦竹 修改 ##
//return Helpers.IsValueType(field.FieldType) ? Activator.CreateInstance(field.FieldType) : null;
return(Helpers.IsValueType(field.FieldType) ? ActivatorUtils.FastCreateInstance(field.FieldType) : null);
}
return(field.GetValue(obj));
}
else
{
throw new InvalidOperationException();
}
}
static FormatterCache()
{
var ti = typeof(T);
if (ti.IsNullable())
{
// build underlying type and use wrapped formatter.
#if NET40
ti = ti.GenericTypeArguments()[0];
#else
ti = ti.GenericTypeArguments[0];
#endif
if (!ti.IsEnum)
{
return;
}
var innerFormatter = DynamicEnumAsStringResolver.Instance.GetFormatterDynamic(ti);
if (innerFormatter == null)
{
return;
}
formatter = (IMessagePackFormatter <T>)ActivatorUtils.CreateInstance(typeof(StaticNullableFormatter <>).GetCachedGenericType(ti), new object[] { innerFormatter });
return;
}
else if (!ti.IsEnum)
{
return;
}
formatter = (IMessagePackFormatter <T>)(object) new EnumAsStringFormatter <T>();
}
static FormatterCache()
{
#if UNITY_WSA && !NETFX_CORE
var attr = (MessagePackFormatterAttribute)typeof(T).GetCustomAttributes(typeof(MessagePackFormatterAttribute), true).FirstOrDefault();
#else
var attr = typeof(T).GetCustomAttributeX <MessagePackFormatterAttribute>();
#endif
if (attr == null)
{
return;
}
if (attr.FormatterType == MessagePackSerializer.Typeless.TypelessFormatterType ||
attr.FormatterType == MessagePackSerializer.Typeless.DefaultTypelessFormatterType)
{
formatter = (IMessagePackFormatter <T>)MessagePackSerializer.Typeless.TypelessFormatter;
}
else
{
if (attr.Arguments == null)
{
formatter = (IMessagePackFormatter <T>)ActivatorUtils.FastCreateInstance(attr.FormatterType);
}
else
{
formatter = (IMessagePackFormatter <T>)ActivatorUtil.CreateInstance(attr.FormatterType, attr.Arguments);
}
}
}
public void CreateInstanceAutoFillGenericParameters_GenericTypeWithBaseClassConstraintPassed_ExceptionThrown()
{
Assert.Throws <ArgumentException>(() =>
{
ActivatorUtils.CreateInstanceAutoFillGenericParameters(typeof(GenericClassWithBaseClassConstraint <>));
});
}
public static object FromObjectDictionary(this IReadOnlyDictionary <string, object> values, Type type)
{
var alreadyDict = type == typeof(IReadOnlyDictionary <string, object>);
#endif
if (alreadyDict)
{
return(true);
}
if (!toObjectMapCache.TryGetValue(type, out var def))
{
toObjectMapCache[type] = def = CreateObjectDictionaryDefinition(type);
}
var to = ActivatorUtils.FastCreateInstance(type); //type.CreateInstance();
foreach (var entry in values)
{
if (!def.FieldsMap.TryGetValue(entry.Key, out var fieldDef) &&
!def.FieldsMap.TryGetValue(entry.Key.ToPascalCase(), out fieldDef) ||
entry.Value == null)
{
continue;
}
fieldDef.SetValue(to, entry.Value);
}
return(to);
}
public Activity <TInstance> GetActivity <TActivity, TInstance>(BehaviorContext <TInstance> context)
where TActivity : class, Activity <TInstance>
{
var lifetimeScope = context.GetPayload <ILifetimeScope>();
return(ActivatorUtils.GetOrCreateInstance <TActivity>(lifetimeScope));
}
/// <summary>
/// Inits the plug-in with configured factory data.
/// </summary>
/// <param name="factoryData">Retrieved factory settings.
/// This parameter is null if no configuration at all
/// was found.</param>
public void Init(string factoryData)
{
String loggerTypeName;
try
{
// load the factoryData XML
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(factoryData);
// obtain the logger element and inspect the 'type' attribute
XmlElement loggerElement = (XmlElement)xmlDoc.GetElementsByTagName("logger")[0];
XmlAttribute loggerTypeAttribute = loggerElement.Attributes[0];
loggerTypeName = loggerTypeAttribute.Value;
}
catch (Exception e)
{
DiagnosticLogger.Error(e, "An exception was thrown while trying to parse the given XML configuration [{0}]",
factoryData);
return;
}
ILogger logger = ActivatorUtils.Instantiate <ILogger>(loggerTypeName, DiagnosticLogger);
if (logger != null)
{
Logger = logger;
}
}
static FormatterCache()
{
var ti = typeof(T);
if (ti.IsNullable())
{
// build underlying type and use wrapped formatter.
ti = ti.GenericTypeArguments[0];
if (!ti.IsEnum)
{
return;
}
var innerFormatter = DynamicEnumResolver.Instance.GetFormatterDynamic(ti);
if (innerFormatter == null)
{
return;
}
formatter = (IMessagePackFormatter <T>)ActivatorUtils.CreateInstance(typeof(StaticNullableFormatter <>).GetCachedGenericType(ti), new object[] { innerFormatter });
return;
}
else if (!ti.IsEnum)
{
return;
}
var formatterTypeInfo = BuildType(typeof(T));
formatter = (IMessagePackFormatter <T>)ActivatorUtils.FastCreateInstance(formatterTypeInfo.AsType());
}
public T GetService <T>(PipeContext context)
where T : class
{
var lifetimeScope = context.GetPayload <ILifetimeScope>();
return(ActivatorUtils.GetOrCreateInstance <T>(lifetimeScope));
}
/// <summary>
/// Creates a new instance of type.
/// First looks at JsConfig.ModelFactory before falling back to CreateInstance
/// </summary>
public static object New(this Type type)
{
//var factoryFn = JsConfig.ModelFactory(type) ?? GetConstructorMethod(type);
//return factoryFn();
var factoryFn = JsConfig.ModelFactory(type);
return(factoryFn != null?factoryFn() : ActivatorUtils.FastCreateInstance(type));
}
public static object ConvertFromCollection(object enumerable)
{
var to = ActivatorUtils.FastCreateInstance <ICollection <T> >(typeof(TCollection));
var from = (IEnumerable <T>)enumerable;
foreach (var item in from)
{
to.Add(item);
}
return(to);
}
public static IDictionary ParseIDictionary(StringSegment value, Type dictType)
{
if (!value.HasValue)
{
return(null);
}
var index = VerifyAndGetStartIndex(value, dictType);
var valueParseMethod = Serializer.GetParseStringSegmentFn(typeof(object));
if (valueParseMethod == null)
{
return(null);
}
//var to = (IDictionary)dictType.CreateInstance();
var to = ActivatorUtils.FastCreateInstance <IDictionary>(dictType);
if (JsonTypeSerializer.IsEmptyMap(value, index))
{
return(to);
}
var valueLength = value.Length;
while (index < valueLength)
{
var keyValue = Serializer.EatMapKey(value, ref index);
Serializer.EatMapKeySeperator(value, ref index);
var elementStartIndex = index;
var elementValue = Serializer.EatTypeValue(value, ref index);
if (!keyValue.HasValue)
{
continue;
}
var mapKey = valueParseMethod(keyValue);
if (elementStartIndex < valueLength)
{
Serializer.EatWhitespace(value, ref elementStartIndex);
to[mapKey] = DeserializeType <TSerializer> .ParsePrimitive(elementValue.Value, value.GetChar(elementStartIndex));
}
else
{
to[mapKey] = valueParseMethod(elementValue);
}
Serializer.EatItemSeperatorOrMapEndChar(value, ref index);
}
return(to);
}
public static object CreateInstance(Type type, params object[] args)
{
if (null == args || 0u > (uint)args.Length)
{
return(ActivatorUtils.FastCreateInstance(type));
}
else
{
return(Activator.CreateInstance(type, args));
}
}
public static object CreateInstance(this Type type)
{
if (type == null)
{
return(null);
}
//var ctorFn = GetConstructorMethod(type);
//return ctorFn();
return(ActivatorUtils.FastCreateInstance(type));
}
public static T CreateInstance <T>(this Type type)
{
if (type == null)
{
return(default(T));
}
//var ctorFn = GetConstructorMethod(type);
//return (T)ctorFn();
return((T)ActivatorUtils.FastCreateInstance(type));
}
public static object CreateInstance(string typeName)
{
if (string.IsNullOrWhiteSpace(typeName))
{
return(null);
}
//var ctorFn = GetConstructorMethod(typeName);
//return ctorFn();
return(ActivatorUtils.FastCreateInstance(typeName));
}
internal static object GetFormatter(Type t)
{
#if !TEST40
if (typeof(ITestMessage).GetTypeInfo().IsAssignableFrom(t.GetTypeInfo()))
#else
if (typeof(ITestMessage).IsAssignableFrom(t))
#endif
{
return(ActivatorUtils.FastCreateInstance(typeof(TestMessageFormatter <>).GetCachedGenericType(t)));
}
return(null);
}
private Func <ServiceResolver, object> ResolveManyEnumerableService(ManyEnumerableServiceDefintion manyEnumerableServiceDefintion)
{
var elementDefinitions = manyEnumerableServiceDefintion.ServiceDefinitions.ToArray();
var elementType = manyEnumerableServiceDefintion.ElementType;
return(resolver =>
{
var length = elementDefinitions.Length;
var instance = Array.CreateInstance(elementType, length);
for (var i = 0; i < length; i++)
{
instance.SetValue(resolver.ResolveDefinition(elementDefinitions[i]), i);
}
return ActivatorUtils.CreateManyEnumerable(elementType, instance);
});
}
public override ValueSerializer BuildSerializer(Serializer serializer, Type type,
CachedReadConcurrentDictionary <Type, ValueSerializer> typeMapping)
{
var preserveObjectReferences = serializer.Options.PreserveObjectReferences;
var ser = new ObjectSerializer(type);
typeMapping.TryAdd(type, ser);
var elementSerializer = serializer.GetSerializerByType(typeof(DictionaryEntry));
ObjectReader reader = (stream, session) =>
{
var instance = ActivatorUtils.FastCreateInstance(type) as IDictionary <string, object>;
if (preserveObjectReferences)
{
session.TrackDeserializedObject(instance);
}
var count = stream.ReadInt32(session);
for (var i = 0; i < count; i++)
{
var entry = (KeyValuePair <string, object>)stream.ReadObject(session);
instance.Add(entry);
}
return(instance);
};
ObjectWriter writer = (stream, obj, session) =>
{
if (preserveObjectReferences)
{
session.TrackSerializedObject(obj);
}
var dict = obj as IDictionary <string, object>;
// ReSharper disable once PossibleNullReferenceException
Int32Serializer.WriteValueImpl(stream, dict.Count, session);
foreach (var item in dict)
{
stream.WriteObject(item, typeof(DictionaryEntry), elementSerializer,
serializer.Options.PreserveObjectReferences, session);
// elementSerializer.WriteValue(stream,item,session);
}
};
ser.Initialize(reader, writer);
return(ser);
}
public void CreateInstanceFromTypeNameTest()
{
var dllname = "Generated.dll";
MakeDll(dllname);
File.Exists(dllname).Should().BeTrue();
var asmName = Path.GetFileNameWithoutExtension(dllname);
var xelement = new XElement("Ftp", new XAttribute("Class", $"X2, {asmName}"));
var result = ActivatorUtils.CreateInstanceFromTypeName <I1>(xelement);
result.Should().NotBeNull();
(result is I1).Should().BeTrue();
File.Delete(dllname);
File.Exists(dllname).Should().BeFalse();
}
public void CreateInstanceFromTypeNameTestOtherDir()
{
var otherDirname = "Other";
var dllNameOtherDir = Path.Combine(otherDirname, "Generated2.dll");
MakeDll(dllNameOtherDir);
var asmName = Path.GetFileNameWithoutExtension(dllNameOtherDir);
var xelement = new XElement("Ftp", new XAttribute("Class", $"X2, {asmName}"));
var result = ActivatorUtils.CreateInstanceFromTypeName <I1>(xelement);
result.Should().BeNull();
var xelementWithExtraPath = new XElement("Ftp", new XAttribute("Class", $"X2, {asmName}"), new XAttribute("ExtraPaths", otherDirname));
result = ActivatorUtils.CreateInstanceFromTypeName <I1>(xelementWithExtraPath);
result.Should().NotBeNull();
(result is I1).Should().BeTrue();
}
static FormatterCache()
{
Interlocked.CompareExchange(ref s_isFreezed, Locked, Unlocked);
var formatters = Volatile.Read(ref s_formatters);
foreach (var item in formatters)
{
foreach (var implInterface in item.GetType().GetTypeInfo().ImplementedInterfaces)
{
#if NET40
if (implInterface.IsGenericType && implInterface.GenericTypeArguments()[0] == typeof(T))
#else
if (implInterface.IsGenericType && implInterface.GenericTypeArguments[0] == typeof(T))
#endif
{
Formatter = (IMessagePackFormatter <T>)item;
return;
}
}
}
var resolvers = Volatile.Read(ref s_resolvers);
foreach (var item in resolvers)
{
var f = item.GetFormatter <T>();
if (f != null)
{
Formatter = f;
return;
}
}
{
var f = MessagePackStandardResolver.TypelessObjectResolver.GetFormatter <T>();
if (f != null)
{
Formatter = f;
return;
}
}
Formatter = ActivatorUtils.FastCreateInstance <IMessagePackFormatter <T> >(typeof(DynamicProxyFormatter <>).GetCachedGenericType(typeof(T)));
}
/// <summary>
/// Creates a factory based on a given configuration.
/// If the factory provides invalid information, an error is logged through
/// the internal logger, and a <see cref="NOPLoggerFactory"/> returned.
/// </summary>
/// <param name="factoryConfiguration">The configuration that provides type
/// information for the <see cref="ILoggerFactory"/> that is being created.</param>
/// <returns>Factory instance.</returns>
private ILoggerFactory CreateFactoryInstance(FactoryConfigurationElement factoryConfiguration)
{
ILoggerFactory factory = ActivatorUtils.Instantiate <ILoggerFactory>(factoryConfiguration.Type);
IConfigurableLoggerFactory cf = factory as IConfigurableLoggerFactory;
// If the factory is configurable, invoke its Init method
if (cf != null)
{
cf.Init(factoryConfiguration.FactoryData);
}
else
{
if (!string.IsNullOrEmpty(factoryConfiguration.FactoryData))
{
throw new ConfigurationErrorsException("Factory " + factoryConfiguration.Type + " does not implement IConfigurableLoggerFactory.");
}
}
return(factory);
}
object CreateInstance(ProtoReader source, bool includeLocalCallback)
{
//Helpers.DebugWriteLine("* creating : " + forType.FullName);
object obj;
if (factory != null)
{
obj = InvokeCallback(factory, null, source.Context);
}
else if (useConstructor)
{
if (!hasConstructor)
{
TypeModel.ThrowCannotCreateInstance(constructType);
}
// ## 苦竹 修改 ##
// obj = Activator.CreateInstance(constructType
//#if !(CF || SILVERLIGHT || WINRT || PORTABLE || NETSTANDARD1_3 || NETSTANDARD1_4)
// , nonPublic: true
//#endif
// );
obj = ActivatorUtils.FastCreateInstance(constructType);
}
else
{
obj = BclHelpers.GetUninitializedObject(constructType);
}
ProtoReader.NoteObject(obj, source);
if (baseCtorCallbacks != null)
{
for (int i = 0; i < baseCtorCallbacks.Length; i++)
{
InvokeCallback(baseCtorCallbacks[i], obj, source.Context);
}
}
if (includeLocalCallback && callbacks != null)
{
InvokeCallback(callbacks.BeforeDeserialize, obj, source.Context);
}
return(obj);
}
/// <summary>
/// Creates a factory based on a given configuration.
/// If the factory provides invalid information, an error is logged through
/// the internal logger, and a <see cref="NullLoggerFactory"/> returned.
/// </summary>
/// <param name="factoryConfiguration">The configuration that provides type
/// information for the <see cref="ILoggerFactory"/> that is being created.</param>
/// <returns>Factory instance.</returns>
private ILoggerFactory CreateFactoryInstance(FactoryConfigurationElement factoryConfiguration)
{
ILoggerFactory factory = ActivatorUtils.Instantiate <ILoggerFactory>(
factoryConfiguration.Type, DiagnosticLogger);
//if the factory is configurable, invoke its Init method
IConfigurableLoggerFactory cf = factory as IConfigurableLoggerFactory;
if (cf != null)
{
cf.Init(factoryConfiguration.FactoryData);
}
if (factory == null)
{
factory = NullLoggerFactory.Instance;
}
return(factory);
}
public override object Read(object untyped, ProtoReader source)
{
TDictionary typed = AppendToCollection ? ((TDictionary)untyped) : null;
//if (typed == null) typed = (TDictionary)Activator.CreateInstance(concreteType);
if (typed == null)
{
typed = (TDictionary)ActivatorUtils.FastCreateInstance(concreteType);
}
do
{
var key = DefaultKey;
var value = DefaultValue;
SubItemToken token = ProtoReader.StartSubItem(source);
int field;
while ((field = source.ReadFieldHeader()) > 0)
{
switch (field)
{
case 1:
key = (TKey)keyTail.Read(null, source);
break;
case 2:
value = (TValue)Tail.Read(Tail.RequiresOldValue ? (object)value : null, source);
break;
default:
source.SkipField();
break;
}
}
ProtoReader.EndSubItem(token, source);
typed[key] = value;
} while (source.TryReadFieldHeader(fieldNumber));
return(typed);
}
public static object ParseTuple(Type tupleType, StringSegment value)
{
var index = 0;
Serializer.EatMapStartChar(value, ref index);
if (JsonTypeSerializer.IsEmptyMap(value, index))
{
//return tupleType.CreateInstance();
return(ActivatorUtils.FastCreateInstance(tupleType));
}
var genericArgs = tupleType.GetGenericArguments();
var argValues = new object[genericArgs.Length];
var valueLength = value.Length;
while (index < valueLength)
{
var keyValue = Serializer.EatMapKey(value, ref index);
Serializer.EatMapKeySeperator(value, ref index);
var elementValue = Serializer.EatValue(value, ref index);
if (!keyValue.HasValue)
{
continue;
}
var keyIndex = keyValue.Substring("Item".Length).ToInt() - 1;
var parseFn = Serializer.GetParseStringSegmentFn(genericArgs[keyIndex]);
argValues[keyIndex] = parseFn(elementValue);
Serializer.EatItemSeperatorOrMapEndChar(value, ref index);
}
var ctor = tupleType.GetConstructors()
.First(x => x.GetParameters().Length == genericArgs.Length);
return(ctor.Invoke(argValues));
}
public static ICollection <T> CreateAndPopulate <T>(Type ofCollectionType, T[] withItems)
{
if (withItems == null)
{
return(null);
}
if (ofCollectionType == null)
{
return(new List <T>(withItems));
}
var genericType = ofCollectionType.FirstGenericType();
var genericTypeDefinition = genericType != null
? genericType.GetGenericTypeDefinition()
: null;
if (genericTypeDefinition == typeof(HashSet <>))
{
return(new HashSet <T>(withItems));
}
if (genericTypeDefinition == typeof(LinkedList <>))
{
return(new LinkedList <T>(withItems));
}
//var collection = (ICollection<T>)ofCollectionType.CreateInstance();
var collection = ActivatorUtils.FastCreateInstance <ICollection <T> >(ofCollectionType);
foreach (var item in withItems)
{
collection.Add(item);
}
return(collection);
}
public static Expression GetNewExpression(Type type)
{
if (type.IsValueType)
{
var x = Expression.Constant(ActivatorUtils.FastCreateInstance(type));
var convert = Expression.Convert(x, typeof(object));
return(convert);
}
//#if SERIALIZATION
var defaultCtor = type.GetConstructor(new Type[] { });
var il = defaultCtor?.GetMethodBody()?.GetILAsByteArray();
var sideEffectFreeCtor = il != null && il.Length <= 8; //this is the size of an empty ctor
if (sideEffectFreeCtor)
{
//the ctor exists and the size is empty. lets use the New operator
return(Expression.New(defaultCtor));
}
//#endif
var emptyObjectMethod = typeof(TypeEx).GetMethod(nameof(TypeEx.GetEmptyObject));
var emptyObject = Expression.Call(null, emptyObjectMethod, type.ToConstant());
return(emptyObject);
}
