/// <summary>
/// Gets the serializer for the specified <see cref="Type"/>.
/// </summary>
/// <param name="targetType">Type of the serialization target.</param>
/// <param name="providerParameter">A provider specific parameter. See remarks section of <see cref="GetSerializer{T}(Object)"/> for details.</param>
/// <returns>
/// <see cref="MessagePackSerializer"/>.
/// If there is exiting one, returns it.
/// Else the new instance will be created.
/// If the platform supports async/await programming model, return type is <c>IAsyncMessagePackSingleObjectSerializer</c>.
/// </returns>
/// <exception cref="ArgumentNullException">
/// <paramref name="targetType"/> is <c>null</c>.
/// </exception>
/// <remarks>
/// Although <see cref="GetSerializer{T}(Object)"/> is preferred,
/// this method can be used from non-generic type or methods.
/// </remarks>
public MessagePackSerializer GetSerializer( Type targetType, object providerParameter )
{
if ( targetType == null )
{
throw new ArgumentNullException( "targetType" );
}
#if DEBUG
Contract.Ensures( Contract.Result<MessagePackSerializer>() != null );
#endif // DEBUG
#if UNITY
try
{
#endif // UNITY
return SerializerGetter.Instance.Get( this, targetType, providerParameter );
#if UNITY
}
catch ( Exception ex )
{
AotHelper.HandleAotError( targetType, ex );
throw;
}
#endif // UNITY
}
public static MessagePackSerializer <T> Create <T>()
{
#if DEBUG
Contract.Ensures(Contract.Result <MessagePackSerializer <T> >() != null);
#endif // DEBUG
return(Create <T>(SerializationContext.Default));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that the unpacking collection is too large to represents in the current runtime environment.
/// </summary>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
public static Exception NewIsTooLargeCollection()
{
#if DEBUG
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new MessageNotSupportedException("The collection which has more than Int32.MaxValue items is not supported."));
}
/// <summary>
/// Creates new <see cref="SerializerEmitter"/> which corresponds to the specified <see cref="EmitterFlavor"/>.
/// </summary>
/// <param name="context">The <see cref="SerializationContext"/>.</param>
/// <param name="specification">The specification of the serializer.</param>
/// <returns>New <see cref="SerializerEmitter"/> which corresponds to the specified <see cref="EmitterFlavor"/>.</returns>
public SerializerEmitter CreateEnumEmitter(SerializationContext context, SerializerSpecification specification)
{
Contract.Requires(context != null);
Contract.Requires(specification != null);
Contract.Ensures(Contract.Result <SerializerEmitter>() != null);
return(new SerializerEmitter(context, this._module, specification, this._isDebuggable));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that the underlying stream is not correct semantically because failed to unpack items count of array/map.
/// </summary>
/// <param name="innerException">The inner exception for the debug. The value is implementation specific.</param>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
public static Exception NewIsIncorrectStream(Exception innerException)
{
#if DEBUG
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new SerializationException("Failed to unpack items count of the collection.", innerException));
}
public static Exception NewUnexpectedEndOfStream()
{
#if DEBUG
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new SerializationException("Stream unexpectedly ends."));
}
public static Exception NewIsNotMapHeader()
{
#if DEBUG
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new SerializationException("Unpacker is not in the map header. The stream may not be map."));
}
/// <summary>
/// Creates new <see cref="SerializerEmitter"/> which corresponds to the specified <see cref="EmitterFlavor"/>.
/// </summary>
/// <param name="specification">The specification of the serializer.</param>
/// <param name="baseClass">Type of the base class of the serializer.</param>
/// <returns>New <see cref="SerializerEmitter"/> which corresponds to the specified <see cref="EmitterFlavor"/>.</returns>
public SerializerEmitter CreateObjectEmitter(SerializerSpecification specification, Type baseClass)
{
Contract.Requires(specification != null);
Contract.Requires(baseClass != null);
Contract.Ensures(Contract.Result <SerializerEmitter>() != null);
return(new SerializerEmitter(this._module, specification, baseClass, this._isDebuggable));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that the unpacking collection value is not a collection.
/// </summary>
/// <param name="memberName">The name of the member.</param>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
public static Exception NewStreamDoesNotContainCollectionForMember(string memberName)
{
#if DEBUG
Contract.Requires(!String.IsNullOrEmpty(memberName));
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new SerializationException(String.Format(CultureInfo.CurrentCulture, "Cannot deserialize member '{0}' because the underlying stream does not contain collection.", memberName)));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that target type is not serializable because it does not have public default constructor.
/// </summary>
/// <param name="type">The target type.</param>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
internal static Exception NewTargetDoesNotHavePublicDefaultConstructor(Type type)
{
#if !UNITY
Contract.Requires(type != null);
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // !UNITY
return(new SerializationException(String.Format(CultureInfo.CurrentCulture, "Type '{0}' does not have default (parameterless) public constructor.", type)));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that the member cannot be <c>null</c> or the unpacking value cannot be nil because nil value is explicitly prohibitted.
/// </summary>
/// <param name="memberName">The name of the member.</param>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
public static Exception NewNullIsProhibited(string memberName)
{
#if DEBUG
Contract.Requires(!String.IsNullOrEmpty(memberName));
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new SerializationException(String.Format(CultureInfo.CurrentCulture, "The member '{0}' cannot be nil.", memberName)));
}
public static Exception NewMissingItem(int index) // For compatibility only.
{
#if DEBUG
Contract.Requires(index >= 0);
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new InvalidMessagePackStreamException(String.Format(CultureInfo.CurrentCulture, "Items at index '{0}' is missing.", index)));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that value type cannot be <c>null</c> on deserialization.
/// </summary>
/// <param name="type">The target type.</param>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
public static Exception NewValueTypeCannotBeNull(Type type)
{
#if DEBUG
Contract.Requires(type != null);
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new SerializationException(String.Format(CultureInfo.CurrentCulture, "Cannot be null '{0}' type value.", type)));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that target collection type does not declare appropriate Add(T) method.
/// </summary>
/// <param name="type">The target type.</param>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
public static Exception NewMissingAddMethod(Type type)
{
#if DEBUG
Contract.Requires(type != null);
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new SerializationException(String.Format(CultureInfo.CurrentCulture, "Type '{0}' does not have appropriate Add method.", type)));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that required field is not found on the unpacking stream.
/// </summary>
/// <param name="name">The name of the property.</param>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
public static Exception NewMissingProperty(string name)
{
#if DEBUG
Contract.Requires(!String.IsNullOrEmpty(name));
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new SerializationException(String.Format(CultureInfo.CurrentCulture, "Property '{0}' is missing.", name)));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that target type is not serializable because it does not have both of public default constructor and public constructor with an Int32 parameter.
/// </summary>
/// <param name="type">The target type.</param>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
internal static Exception NewTargetDoesNotHavePublicDefaultConstructorNorInitialCapacity(Type type)
{
#if DEBUG
Contract.Requires(type != null);
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new SerializationException(String.Format(CultureInfo.CurrentCulture, "Type '{0}' does not have both of default (parameterless) public constructor and public constructor with an Int32 parameter.", type)));
}
public static Exception NewTupleCardinarityIsNotMatch(int expectedTupleCardinality, int actualArrayLength)
{
#if DEBUG
Contract.Requires(expectedTupleCardinality > 0);
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new SerializationException(String.Format(CultureInfo.CurrentCulture, "The length of array ({0}) does not match to tuple cardinality ({1}).", actualArrayLength, expectedTupleCardinality)));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that operation is not supported because <paramref name="type"/> cannot be instanciated.
/// </summary>
/// <param name="type">Type.</param>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
public static Exception NewNotSupportedBecauseCannotInstanciateAbstractType(Type type)
{
#if DEBUG
Contract.Requires(type != null);
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new NotSupportedException(String.Format(CultureInfo.CurrentCulture, "This operation is not supported because '{0}' cannot be instanciated.", type)));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that value type cannot serialize.
/// </summary>
/// <param name="type">The target type.</param>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
public static Exception NewTypeCannotSerialize(Type type)
{
#if !UNITY
Contract.Requires(type != null);
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // !UNITY
return(new SerializationException(String.Format(CultureInfo.CurrentCulture, "Cannot serialize '{0}' type.", type)));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that the unpacking value cannot be nil because the target member is read only and its type is collection.
/// </summary>
/// <param name="memberName">The name of the member.</param>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
public static Exception NewReadOnlyMemberItemsMustNotBeNull(string memberName)
{
#if DEBUG
Contract.Requires(!String.IsNullOrEmpty(memberName));
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new SerializationException(String.Format(CultureInfo.CurrentCulture, "The member '{0}' cannot be nil because it is read only member.", memberName)));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that the unpacking array size is not expected length.
/// </summary>
/// <param name="expectedLength">Expected, required for deserialization array length.</param>
/// <param name="actualLength">Actual array length.</param>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
public static Exception NewUnexpectedArrayLength(int expectedLength, int actualLength)
{
#if DEBUG
Contract.Requires(expectedLength >= 0);
Contract.Requires(actualLength >= 0);
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new SerializationException(String.Format(CultureInfo.CurrentCulture, "The MessagePack stream is invalid. Expected array length is {0}, but actual is {1}.", expectedLength, actualLength)));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that value type cannot deserialize.
/// </summary>
/// <param name="type">The target type.</param>
/// <param name="memberName">The name of deserializing member.</param>
/// <param name="inner">The inner exception.</param>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
public static Exception NewTypeCannotDeserialize(Type type, string memberName, Exception inner)
{
#if !UNITY
Contract.Requires(type != null);
Contract.Requires(!String.IsNullOrEmpty(memberName));
Contract.Requires(inner != null);
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // !UNITY
return(new SerializationException(String.Format(CultureInfo.CurrentCulture, "Cannot deserialize member '{1}' of type '{0}'.", type, memberName), inner));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that value type cannot be <c>null</c> on deserialization.
/// </summary>
/// <param name="name">The name of the member.</param>
/// <param name="memberType">The type of the member.</param>
/// <param name="declaringType">The type that declares the member.</param>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
public static Exception NewValueTypeCannotBeNull(string name, Type memberType, Type declaringType)
{
#if DEBUG
Contract.Requires(!String.IsNullOrEmpty(name));
Contract.Requires(memberType != null);
Contract.Requires(declaringType != null);
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new SerializationException(String.Format(CultureInfo.CurrentCulture, "Member '{0}' of type '{1}' cannot be null because it is value type('{2}').", name, declaringType, memberType)));
}
/// <summary>
/// <strong>This is intended to MsgPack for CLI internal use. Do not use this type from application directly.</strong>
/// Returns new exception to notify that it is failed to deserialize member.
/// </summary>
/// <param name="targetType">Deserializing type.</param>
/// <param name="memberName">The name of the deserializing member.</param>
/// <param name="inner">The exception which caused current error.</param>
/// <returns><see cref="Exception"/> instance. It will not be <c>null</c>.</returns>
public static Exception NewFailedToDeserializeMember(Type targetType, string memberName, Exception inner)
{
#if DEBUG
Contract.Requires(targetType != null);
Contract.Requires(!String.IsNullOrEmpty(memberName));
Contract.Requires(inner != null);
Contract.Ensures(Contract.Result <Exception>() != null);
#endif // DEBUG
return(new SerializationException(String.Format(CultureInfo.CurrentCulture, "Cannot deserialize member '{0}' of type '{1}'.", memberName, targetType), inner));
}
/// <summary>
/// Gets the serializer for the specified <see cref="Type"/>.
/// </summary>
/// <param name="targetType">Type of the serialization target.</param>
/// <param name="providerParameter">A provider specific parameter. See remarks section of <see cref="GetSerializer{T}(Object)"/> for details.</param>
/// <returns>
/// <see cref="IMessagePackSingleObjectSerializer"/>.
/// If there is exiting one, returns it.
/// Else the new instance will be created.
/// </returns>
/// <exception cref="ArgumentNullException">
/// <paramref name="targetType"/> is <c>null</c>.
/// </exception>
/// <remarks>
/// Although <see cref="GetSerializer{T}(Object)"/> is preferred,
/// this method can be used from non-generic type or methods.
/// </remarks>
public IMessagePackSingleObjectSerializer GetSerializer( Type targetType, object providerParameter )
{
if ( targetType == null )
{
throw new ArgumentNullException( "targetType" );
}
#if !UNITY
Contract.Ensures( Contract.Result<IMessagePackSerializer>() != null );
#endif // !UNITY
return SerializerGetter.Instance.Get( this, targetType, providerParameter );
}
public static MessagePackSerializer Create(Type targetType, SerializationContext context)
{
if (targetType == null)
{
throw new ArgumentNullException("targetType");
}
if (context == null)
{
throw new ArgumentNullException("context");
}
#if DEBUG
Contract.Ensures(Contract.Result <MessagePackSerializer>() != null);
#endif // DEBUG
#if AOT
return(CreateInternal(context, targetType, null));
#else
// MPS.Create should always return new instance, and creator delegate should be cached for performance.
#if NETSTANDARD1_1 || NETSTANDARD1_3
var factory =
_creatorCache.GetOrAdd(
targetType,
type =>
// Utilize covariance of delegate.
Metadata._MessagePackSerializer.Create1_Method.MakeGenericMethod(type).CreateDelegate(
typeof(Func <SerializationContext, MessagePackSerializer>)
) as Func <SerializationContext, MessagePackSerializer>
);
#elif SILVERLIGHT || NET35
Func <SerializationContext, MessagePackSerializer> factory;
lock ( _syncRoot )
{
_creatorCache.TryGetValue(targetType, out factory);
}
if (factory == null)
{
// Utilize covariance of delegate.
factory =
Delegate.CreateDelegate(
typeof(Func <SerializationContext, MessagePackSerializer>),
Metadata._MessagePackSerializer.Create1_Method.MakeGenericMethod(targetType)
) as Func <SerializationContext, MessagePackSerializer>;
Contract.Assert(factory != null);
lock ( _syncRoot )
{
_creatorCache[targetType] = factory;
}
}
#else
var factory =
_creatorCache.GetOrAdd(
targetType,
type =>
// Utilize covariance of delegate.
Delegate.CreateDelegate(
typeof(Func <SerializationContext, MessagePackSerializer>),
Metadata._MessagePackSerializer.Create1_Method.MakeGenericMethod(type)
) as Func <SerializationContext, MessagePackSerializer>
);
#endif // NETSTANDARD1_1 || NETSTANDARD1_3
return(factory(context));
#endif // AOT
}
internal static MessagePackSerializer <T> CreateInternal <T>(SerializationContext context, PolymorphismSchema schema)
{
#if DEBUG
Contract.Ensures(Contract.Result <MessagePackSerializer <T> >() != null);
#endif // DEBUG
#if DEBUG && !AOT && !SILVERLIGHT && !NETSTANDARD1_1
SerializerDebugging.TraceEmitEvent(
"SerializationContext::CreateInternal<{0}>(@{1}, {2})",
typeof(T),
context.GetHashCode(),
schema == null ? "null" : schema.DebugString
);
#endif // DEBUG && !AOT && !SILVERLIGHT && !NETSTANDARD1_1
Type concreteType = null;
CollectionTraits collectionTraits =
#if AOT
typeof(T).GetCollectionTraits(CollectionTraitOptions.None, context.CompatibilityOptions.AllowNonCollectionEnumerableTypes);
#else
typeof(T).GetCollectionTraits(CollectionTraitOptions.Full, context.CompatibilityOptions.AllowNonCollectionEnumerableTypes);
#endif // AOT
if (typeof(T).GetIsAbstract() || typeof(T).GetIsInterface())
{
// Abstract collection types will be handled correctly.
if (collectionTraits.CollectionType != CollectionKind.NotCollection)
{
concreteType = context.DefaultCollectionTypes.GetConcreteType(typeof(T));
}
if (concreteType == null)
{
// return null for polymoirphic provider.
return(null);
}
ValidateType(concreteType);
}
else
{
ValidateType(typeof(T));
}
#if FEATURE_EMIT
ISerializerBuilder builder;
switch (context.SerializerOptions.EmitterFlavor)
{
#if !NETSTANDARD1_3
case EmitterFlavor.CodeDomBased:
{
#if DEBUG
if (!SerializerDebugging.OnTheFlyCodeGenerationEnabled)
{
throw new NotSupportedException(
String.Format(
CultureInfo.CurrentCulture,
"Flavor '{0:G}'({0:D}) is not supported for serializer instance creation.",
context.SerializerOptions.EmitterFlavor
)
);
}
builder = new CodeDomSerializerBuilder(typeof(T), collectionTraits);
break;
#else // DEBUG
throw new NotSupportedException();
#endif // DEBUG
}
#endif // !NETSTANDARD1_3
case EmitterFlavor.FieldBased:
{
builder = new AssemblyBuilderSerializerBuilder(typeof(T), collectionTraits);
break;
}
default: // EmitterFlavor.ReflectionBased
{
#endif // FEATURE_EMIT
return
(GenericSerializer.TryCreateAbstractCollectionSerializer(context, typeof(T), concreteType, schema) as MessagePackSerializer <T>
?? CreateReflectionInternal <T>(context, concreteType ?? typeof(T), schema));
#if FEATURE_EMIT
}
}
return((MessagePackSerializer <T>)builder.BuildSerializerInstance(context, concreteType, schema == null ? null : schema.FilterSelf()));
#endif // FEATURE_EMIT
}
/// <summary>
/// Gets the <see cref="MessagePackSerializer{T}"/> with this instance.
/// </summary>
/// <typeparam name="T">Type of serialization/deserialization target.</typeparam>
/// <param name="providerParameter">A provider specific parameter. See remarks section for details.</param>
/// <returns>
/// <see cref="MessagePackSerializer{T}"/>.
/// If there is exiting one, returns it.
/// Else the new instance will be created.
/// </returns>
/// <remarks>
/// <para>
/// This method automatically register new instance via <see cref="SerializerRepository.Register{T}(MessagePackSerializer{T})"/>.
/// </para>
/// <para>
/// Currently, only following provider parameters are supported.
/// <list type="table">
/// <listheader>
/// <term>Target type</term>
/// <description>Provider parameter</description>
/// </listheader>
/// <item>
/// <term><see cref="EnumMessagePackSerializer{TEnum}"/> or its descendants.</term>
/// <description><see cref="EnumSerializationMethod"/>. The returning instance corresponds to this value for serialization.</description>
/// </item>
/// </list>
/// <note><c>null</c> is valid value for <paramref name="providerParameter"/> and it indeicates default behavior of parameter.</note>
/// </para>
/// </remarks>
public MessagePackSerializer<T> GetSerializer<T>( object providerParameter )
{
#if !UNITY
Contract.Ensures( Contract.Result<MessagePackSerializer<T>>() != null );
#endif // !UNITY
var schema = providerParameter as PolymorphismSchema;
// Explicitly generated serializer should always used, so get it first.
MessagePackSerializer<T> serializer = this._serializers.Get<T>( this, providerParameter );
if ( serializer != null )
{
return serializer;
}
object aquiredLock = null;
bool lockTaken = false;
try
{
try { }
finally
{
var newLock = new object();
#if SILVERLIGHT || NETFX_35 || UNITY
Monitor.Enter( newLock );
try
{
lock ( this._typeLock )
{
lockTaken = !this._typeLock.TryGetValue( typeof( T ), out aquiredLock );
if ( lockTaken )
{
aquiredLock = newLock;
this._typeLock.Add( typeof( T ), newLock );
}
}
#else
bool newLockTaken = false;
try
{
Monitor.Enter( newLock, ref newLockTaken );
aquiredLock = this._typeLock.GetOrAdd( typeof( T ), _ => newLock );
lockTaken = newLock == aquiredLock;
#endif // if SILVERLIGHT || NETFX_35 || UNITY
}
finally
{
#if SILVERLIGHT || NETFX_35 || UNITY
if ( !lockTaken )
#else
if ( !lockTaken && newLockTaken )
#endif // if SILVERLIGHT || NETFX_35 || UNITY
{
// Release the lock which failed to become 'primary' lock.
Monitor.Exit( newLock );
}
}
}
if ( Monitor.TryEnter( aquiredLock ) )
{
// Decrement monitor counter.
Monitor.Exit( aquiredLock );
#if DEBUG && !NETFX_40 && !NETFX_35 && !SILVERLIGHT && !UNITY
Contract.Assert( Monitor.IsEntered( aquiredLock ), "Monitor.IsEntered(aquiredLock)" );
#endif // DEBUG && !NETFX_40 && !NETFX_35 !SILVERLIGHT && && !UNITY
if ( lockTaken )
{
// First try to create generic serializer w/o code generation.
serializer = GenericSerializer.Create<T>( this, schema );
if ( serializer == null )
{
#if !XAMIOS && !XAMDROID && !UNITY
if ( this.IsRuntimeGenerationDisabled )
{
#endif // !XAMIOS && !XAMDROID && !UNITY
// On debugging, or AOT only envs, use reflection based aproach.
serializer =
this.GetSerializerWithoutGeneration<T>( schema )
?? this.OnResolveSerializer<T>( schema )
?? MessagePackSerializer.CreateReflectionInternal<T>( this, this.EnsureConcreteTypeRegistered( typeof( T ) ), schema );
#if !XAMIOS && !XAMDROID && !UNITY
}
else
{
// This thread creating new type serializer.
serializer = this.OnResolveSerializer<T>( schema ) ?? MessagePackSerializer.CreateInternal<T>( this, schema );
}
#endif // !XAMIOS && !XAMDROID && !UNITY
}
}
else
{
// This thread owns existing lock -- thus, constructing self-composite type.
// Prevent release owned lock.
aquiredLock = null;
return new LazyDelegatingMessagePackSerializer<T>( this, providerParameter );
}
// Some types always have to use provider.
MessagePackSerializerProvider provider;
var asEnumSerializer = serializer as ICustomizableEnumSerializer;
if ( asEnumSerializer != null )
{
#if DEBUG && !UNITY
Contract.Assert( typeof( T ).GetIsEnum(), typeof( T ) + " is not enum but generated serializer is ICustomizableEnumSerializer" );
#endif // DEBUG && !UNITY
provider = new EnumMessagePackSerializerProvider( typeof( T ), asEnumSerializer );
}
else
{
#if DEBUG && !UNITY
Contract.Assert( !typeof( T ).GetIsEnum(), typeof( T ) + " is enum but generated serializer is not ICustomizableEnumSerializer : " + ( serializer == null ? "null" : serializer.GetType().FullName ) );
#endif // DEBUG && !UNITY
// Creates provider even if no schema -- the schema might be specified future for the type.
// It is OK to use polymorphic provider for value type.
#if !UNITY
provider = new PolymorphicSerializerProvider<T>( serializer );
#else
provider = new PolymorphicSerializerProvider<T>( this, serializer );
#endif // !UNITY
}
#if !UNITY
Type nullableType;
MessagePackSerializerProvider nullableSerializerProvider;
SerializerRepository.GetNullableCompanion(
typeof( T ),
this,
serializer,
out nullableType,
out nullableSerializerProvider
);
this._serializers.Register(
typeof( T ),
provider,
nullableType,
nullableSerializerProvider,
SerializerRegistrationOptions.WithNullable
);
#else
this._serializers.Register(
typeof( T ),
provider,
null,
null,
SerializerRegistrationOptions.None
);
#endif // !UNITY
}
else
{
// Wait creation by other thread.
// Acquire as 'waiting' lock.
Monitor.Enter( aquiredLock );
}
// Re-get to avoid duplicated registration and handle provider parameter or get the one created by prececing thread.
// If T is null and schema is not provided or default schema is provided, then exception will be thrown here from the new provider.
return this._serializers.Get<T>( this, providerParameter );
}
finally
{
if ( lockTaken )
{
#if SILVERLIGHT || NETFX_35 || UNITY
lock ( this._typeLock )
{
this._typeLock.Remove( typeof( T ) );
}
#else
object dummy;
this._typeLock.TryRemove( typeof( T ), out dummy );
#endif // if SILVERLIGHT || NETFX_35 || UNITY
}
if ( aquiredLock != null )
{
// Release primary lock or waiting lock.
Monitor.Exit( aquiredLock );
#if DEBUG && !NETFX_40 && !NETFX_35 && !SILVERLIGHT && !UNITY
Contract.Assert( !Monitor.IsEntered( aquiredLock ), "!Monitor.IsEntered(aquiredLock)" );
#endif // DEBUG && !NETFX_40 && !NETFX_35 && !SILVERLIGHT && !UNITY
}
}
}
/// <summary>
/// Gets the <see cref="MessagePackSerializer{T}"/> with this instance.
/// </summary>
/// <typeparam name="T">Type of serialization/deserialization target.</typeparam>
/// <param name="providerParameter">A provider specific parameter. See remarks section for details.</param>
/// <returns>
/// <see cref="MessagePackSerializer{T}"/>.
/// If there is exiting one, returns it.
/// Else the new instance will be created.
/// </returns>
/// <remarks>
/// <para>
/// This method automatically register new instance via <see cref="SerializerRepository.Register{T}(MessagePackSerializer{T})"/>.
/// </para>
/// <para>
/// Currently, only following provider parameters are supported.
/// <list type="table">
/// <listheader>
/// <term>Target type</term>
/// <description>Provider parameter</description>
/// </listheader>
/// <item>
/// <term><see cref="EnumMessagePackSerializer{TEnum}"/> or its descendants.</term>
/// <description><see cref="EnumSerializationMethod"/>. The returning instance corresponds to this value for serialization.</description>
/// </item>
/// </list>
/// <note><c>null</c> is valid value for <paramref name="providerParameter"/> and it indeicates default behavior of parameter.</note>
/// </para>
/// </remarks>
public MessagePackSerializer<T> GetSerializer<T>( object providerParameter )
{
#if DEBUG
Contract.Ensures( Contract.Result<MessagePackSerializer<T>>() != null );
#endif // DEBUG
// Explicitly generated serializer should always used, so get it first.
MessagePackSerializer<T> serializer = this._serializers.Get<T>( this, providerParameter );
if ( serializer != null )
{
return serializer;
}
bool lockTaken = false;
lock ( this._generationLock )
{
// Re-get to check because other thread might create the serializer when I wait the lock.
serializer = this._serializers.Get<T>( this, providerParameter );
if ( serializer != null )
{
return serializer;
}
try
{
try { }
finally
{
#if !FEATURE_CONCURRENT
lock ( this._typeLock )
{
var typeLock = new object();
object aquiredLock;
lockTaken = !this._typeLock.TryGetValue( typeof( T ), out aquiredLock );
if ( lockTaken )
{
this._typeLock.Add( typeof( T ), typeLock );
}
}
#else
var typeLock = new object();
var aquiredTypeLock = this._typeLock.GetOrAdd( typeof( T ), _ => typeLock );
lockTaken = typeLock == aquiredTypeLock;
#endif // !FEATURE_CONCURRENT
}
if ( lockTaken )
{
// First try to create generic serializer w/o code generation.
var schema = ( providerParameter ?? PolymorphismSchema.Create( typeof( T ), null ) ) as PolymorphismSchema;
serializer = GenericSerializer.Create<T>( this, schema );
if ( serializer == null )
{
#if !UNITY
if ( !this._serializerGeneratorOptions.CanRuntimeCodeGeneration )
{
#endif // !UNITY
// On debugging, or AOT only envs, use reflection based aproach.
serializer =
this.GetSerializerWithoutGeneration<T>( schema )
?? this.OnResolveSerializer<T>( schema )
?? MessagePackSerializer.CreateReflectionInternal<T>( this, this.EnsureConcreteTypeRegistered( typeof( T ) ), schema );
#if !UNITY
}
else
{
// This thread creating new type serializer.
serializer = this.OnResolveSerializer<T>( schema ) ?? MessagePackSerializer.CreateInternal<T>( this, schema );
}
#endif // !UNITY
}
}
else
{
// This thread owns existing lock -- thus, constructing self-composite type.
return new LazyDelegatingMessagePackSerializer<T>( this, providerParameter );
}
// Some types always have to use provider.
MessagePackSerializerProvider provider;
var asEnumSerializer = serializer as ICustomizableEnumSerializer;
if ( asEnumSerializer != null )
{
#if DEBUG
Contract.Assert( typeof( T ).GetIsEnum(), typeof( T ) + " is not enum but generated serializer is ICustomizableEnumSerializer" );
#endif // DEBUG
provider = new EnumMessagePackSerializerProvider( typeof( T ), asEnumSerializer );
}
else
{
#if DEBUG
Contract.Assert( !typeof( T ).GetIsEnum(), typeof( T ) + " is enum but generated serializer is not ICustomizableEnumSerializer : " + ( serializer == null ? "null" : serializer.GetType().FullName ) );
#endif // DEBUG
// Creates provider even if no schema -- the schema might be specified future for the type.
// It is OK to use polymorphic provider for value type.
#if !UNITY
provider = new PolymorphicSerializerProvider<T>( serializer );
#else
provider = new PolymorphicSerializerProvider<T>( this, serializer );
#endif // !UNITY
}
#if !UNITY
Type nullableType;
MessagePackSerializerProvider nullableSerializerProvider;
SerializerRepository.GetNullableCompanion(
typeof( T ),
this,
serializer,
out nullableType,
out nullableSerializerProvider
);
this._serializers.Register(
typeof( T ),
provider,
nullableType,
nullableSerializerProvider,
SerializerRegistrationOptions.WithNullable
);
#else
this._serializers.Register(
typeof( T ),
provider,
null,
null,
SerializerRegistrationOptions.None
);
#endif // !UNITY
// Re-get to avoid duplicated registration and handle provider parameter or get the one created by prececing thread.
// If T is null and schema is not provided or default schema is provided, then exception will be thrown here from the new provider.
return this._serializers.Get<T>( this, providerParameter );
}
finally
{
if ( lockTaken )
{
#if !FEATURE_CONCURRENT
lock ( this._typeLock )
{
this._typeLock.Remove( typeof( T ) );
}
#else
object dummy;
this._typeLock.TryRemove( typeof( T ), out dummy );
#endif // !FEATURE_CONCURRENT
}
}
}
}
public static IMessagePackSingleObjectSerializer Create(Type targetType, SerializationContext context)
{
if (targetType == null)
{
throw new ArgumentNullException("targetType");
}
if (context == null)
{
throw new ArgumentNullException("context");
}
#if !UNITY
Contract.Ensures(Contract.Result <IMessagePackSerializer>() != null);
#endif // !UNITY
#if XAMIOS || XAMDROID || UNITY
return(CreateInternal(context, targetType, null));
#else
// MPS.Create should always return new instance, and creator delegate should be cached for performance.
#if NETFX_CORE
var factory =
_creatorCache.GetOrAdd(
targetType,
type =>
{
var contextParameter = Expression.Parameter(typeof(SerializationContext), "context");
// Utilize covariance of delegate.
return
(Expression.Lambda <Func <SerializationContext, IMessagePackSingleObjectSerializer> >(
Expression.Call(
null,
Metadata._MessagePackSerializer.Create1_Method.MakeGenericMethod(type),
contextParameter
),
contextParameter
).Compile());
}
);
#elif SILVERLIGHT || NETFX_35
Func <SerializationContext, IMessagePackSingleObjectSerializer> factory;
lock ( _syncRoot )
{
_creatorCache.TryGetValue(targetType, out factory);
}
if (factory == null)
{
// Utilize covariance of delegate.
factory =
Delegate.CreateDelegate(
typeof(Func <SerializationContext, IMessagePackSingleObjectSerializer>),
Metadata._MessagePackSerializer.Create1_Method.MakeGenericMethod(targetType)
) as Func <SerializationContext, IMessagePackSingleObjectSerializer>;
Contract.Assert(factory != null);
lock ( _syncRoot )
{
_creatorCache[targetType] = factory;
}
}
#else
var factory =
_creatorCache.GetOrAdd(
targetType,
type =>
// Utilize covariance of delegate.
Delegate.CreateDelegate(
typeof(Func <SerializationContext, IMessagePackSingleObjectSerializer>),
Metadata._MessagePackSerializer.Create1_Method.MakeGenericMethod(type)
) as Func <SerializationContext, IMessagePackSingleObjectSerializer>
);
#endif // NETFX_CORE
return(factory(context));
#endif // XAMIOS || XAMDROID || UNITY else
}