public static void VerifyType( Type targetType )
{
if ( targetType.GetIsInterface() || targetType.GetIsAbstract() )
{
throw SerializationExceptions.NewNotSupportedBecauseCannotInstanciateAbstractType( targetType );
}
}
public static PropertyInfo FindEnumeratorCurrentProperty( Type enumeratorType, CollectionTraits traits )
{
#if DEBUG
Contract.Assert( traits.GetEnumeratorMethod != null );
#endif // DEBUG
PropertyInfo currentProperty = traits.GetEnumeratorMethod.ReturnType.GetProperty( "Current" );
if ( currentProperty == null )
{
if ( enumeratorType == typeof( IDictionaryEnumerator ) )
{
currentProperty = Metadata._IDictionaryEnumerator.Entry;
}
else if ( enumeratorType.GetIsInterface() )
{
if ( enumeratorType.GetIsGenericType() && enumeratorType.GetGenericTypeDefinition() == typeof( IEnumerator<> ) )
{
currentProperty = typeof( IEnumerator<> ).MakeGenericType( traits.ElementType ).GetProperty( "Current" );
}
else
{
currentProperty = Metadata._IEnumerator.Current;
}
}
}
return currentProperty;
}
public static bool Implements( this Type source, Type genericType )
{
Contract.Assert( source != null );
Contract.Assert( genericType != null );
Contract.Assert( genericType.GetIsInterface() );
return EnumerateGenericIntefaces( source, genericType, false ).Any();
}
public static bool Implements( this Type source, Type genericType )
{
#if !UNITY
Contract.Assert( source != null, "source != null" );
Contract.Assert( genericType != null, "genericType != null" );
Contract.Assert( genericType.GetIsInterface(), "genericType.GetIsInterface()" );
#endif // !UNITY
return EnumerateGenericIntefaces( source, genericType, false ).Any();
}
public static bool Implements( this Type source, Type genericType )
{
#if !UNITY_ANDROID && !UNITY_IPHONE
Contract.Assert( source != null );
Contract.Assert( genericType != null );
Contract.Assert( genericType.GetIsInterface() );
#endif // !UNITY_ANDROID && !UNITY_IPHONE
return EnumerateGenericIntefaces( source, genericType, false ).Any();
}
/// <summary>
/// Registers the default type of the collection.
/// </summary>
/// <param name="abstractCollectionType">Type of the abstract collection.</param>
/// <param name="defaultCollectionType">Default concrete type of the <paramref name="abstractCollectionType"/>.</param>
/// <exception cref="System.ArgumentNullException">
/// <paramref name="abstractCollectionType"/> is <c>null</c>.
/// Or <paramref name="defaultCollectionType"/> is <c>null</c>.
/// </exception>
/// <exception cref="System.ArgumentException">
/// <paramref name="abstractCollectionType"/> is not collection type.
/// Or <paramref name="defaultCollectionType"/> is abstract class or interface.
/// Or <paramref name="defaultCollectionType"/> is open generic type but <paramref name="abstractCollectionType"/> is closed generic type.
/// Or <paramref name="defaultCollectionType"/> is closed generic type but <paramref name="abstractCollectionType"/> is open generic type.
/// Or <paramref name="defaultCollectionType"/> does not have same arity for <paramref name="abstractCollectionType"/>.
/// Or <paramref name="defaultCollectionType"/> is not assignable to <paramref name="abstractCollectionType"/>
/// or the constructed type from <paramref name="defaultCollectionType"/> will not be assignable to the constructed type from <paramref name="abstractCollectionType"/>.
/// </exception>
/// <remarks>
/// If you want to overwrite default type for collection interfaces, you can use this method.
/// Note that this method only supports collection interface, that is subtype of the <see cref="IEnumerable"/> interface.
/// <note>
/// If you register invalid type for <paramref name="defaultCollectionType"/>, then runtime exception will be occurred.
/// For example, you register <see cref="IEnumerable{T}"/> of <see cref="Char"/> and <see cref="String"/> pair, but it will cause runtime error.
/// </note>
/// </remarks>
/// <seealso cref="Get"/>
public void Register( Type abstractCollectionType, Type defaultCollectionType )
{
if ( abstractCollectionType == null )
{
throw new ArgumentNullException( "abstractCollectionType" );
}
if ( defaultCollectionType == null )
{
throw new ArgumentNullException( "defaultCollectionType" );
}
// Use GetIntegerfaces() in addition to IsAssignableFrom because of open generic type support.
if ( !abstractCollectionType.GetInterfaces().Contains( typeof( IEnumerable ) ) )
{
throw new ArgumentException(
String.Format( CultureInfo.CurrentCulture, "The type '{0}' is not collection.", abstractCollectionType ),
"abstractCollectionType" );
}
if ( abstractCollectionType.GetIsGenericTypeDefinition() )
{
if ( !defaultCollectionType.GetIsGenericTypeDefinition() )
{
throw new ArgumentException(
String.Format(
CultureInfo.CurrentCulture,
"The closed generic type '{1}' cannot be assigned to open generic type '{0}'.",
abstractCollectionType,
defaultCollectionType ),
"defaultCollectionType" );
}
if ( abstractCollectionType.GetGenericTypeParameters().Length !=
defaultCollectionType.GetGenericTypeParameters().Length )
{
throw new ArgumentException(
String.Format(
CultureInfo.CurrentCulture,
"The default generic collection type '{1}' does not have same arity for abstract generic collection type '{0}'.",
abstractCollectionType,
defaultCollectionType ),
"defaultCollectionType" );
}
}
else if ( defaultCollectionType.GetIsGenericTypeDefinition() )
{
throw new ArgumentException(
String.Format(
CultureInfo.CurrentCulture,
"The open generic type '{1}' cannot be assigned to closed generic type '{0}'.",
abstractCollectionType,
defaultCollectionType ),
"defaultCollectionType" );
}
if ( defaultCollectionType.GetIsAbstract() || defaultCollectionType.GetIsInterface() )
{
throw new ArgumentException(
String.Format( CultureInfo.CurrentCulture, "The defaultCollectionType cannot be abstract class nor interface. The type '{0}' is abstract type.", defaultCollectionType ),
"defaultCollectionType" );
}
// Use GetIntegerfaces() and BaseType instead of IsAssignableFrom because of open generic type support.
if ( !abstractCollectionType.IsAssignableFrom( defaultCollectionType )
&& abstractCollectionType.GetIsGenericTypeDefinition()
&& !defaultCollectionType
.GetInterfaces()
.Select( t => ( t.GetIsGenericType() && !t.GetIsGenericTypeDefinition() ) ? t.GetGenericTypeDefinition() : t )
.Contains( abstractCollectionType )
&& !IsAnscestorType( abstractCollectionType, defaultCollectionType ) )
{
throw new ArgumentException(
String.Format(
CultureInfo.CurrentCulture,
"The type '{1}' is not assignable to '{0}'.",
abstractCollectionType,
defaultCollectionType ),
"defaultCollectionType" );
}
this._defaultCollectionTypes.Register( abstractCollectionType, defaultCollectionType, /*allowOverwrite:*/ true );
}
protected ObjectReflectionMessagePackSerializer(Type type, SerializationContext context, SerializingMember[] members)
: base(type, (context ?? SerializationContext.Default).CompatibilityOptions.PackerCompatibilityOptions)
{
if (type.GetIsAbstract() || type.GetIsInterface())
{
throw SerializationExceptions.NewNotSupportedBecauseCannotInstanciateAbstractType(type);
}
this._createInstance = () => Activator.CreateInstance(type);
//Expression.Lambda<Func<T>>(
// typeof(T).GetIsValueType()
// ? Expression.Default(typeof(T)) as Expression
// : Expression.New(typeof(T).GetConstructor(ReflectionAbstractions.EmptyTypes))
// ).Compile();
var isPackable = typeof(IPackable).IsAssignableFrom(type);
var isUnpackable = typeof(IUnpackable).IsAssignableFrom(type);
if (isPackable && isUnpackable)
{
this._memberSerializers = null;
this._indexMap = null;
this._isCollection = null;
this._nilImplications = null;
this._memberNames = null;
}
else
{
this._memberSerializers =
members.Select(
m => m.Member == null ? NullSerializer.Instance : context.GetSerializer(m.Member.GetMemberValueType())).ToArray
(
);
this._indexMap =
members
.Select((m, i) => new KeyValuePair<SerializingMember, int>(m, i))
.Where(kv => kv.Key.Member != null)
.ToDictionary(kv => kv.Key.Contract.Name, kv => kv.Value);
this._isCollection =
members.Select(
m => m.Member == null ? CollectionTraits.NotCollection : m.Member.GetMemberValueType().GetCollectionTraits()).
Select(t => t.CollectionType != CollectionKind.NotCollection).ToArray();
// NilImplication validity check
foreach (var member in members)
{
switch (member.Contract.NilImplication)
{
case NilImplication.Null:
{
if (member.Member.GetMemberValueType().GetIsValueType() &&
Nullable.GetUnderlyingType(member.Member.GetMemberValueType()) == null)
{
throw SerializationExceptions.NewValueTypeCannotBeNull(
member.Contract.Name, member.Member.GetMemberValueType(), member.Member.DeclaringType
);
}
if (!member.Member.CanSetValue())
{
throw SerializationExceptions.NewReadOnlyMemberItemsMustNotBeNull(member.Contract.Name);
}
break;
}
}
}
this._nilImplications = members.Select(m => m.Contract.NilImplication).ToArray();
this._memberNames = members.Select(m => m.Contract.Name).ToArray();
}
if (isPackable)
{
this._packToMessage = (target, packer, packingOptions) =>
{
((IPackable)target).PackToMessage(packer, packingOptions);
//typeof(T).GetInterfaceMap(typeof(IPackable)).TargetMethods.Single().Invoke(target, new object[] { packer, packingOptions });
};
this._memberGetters = null;
}
else
{
this._packToMessage = null;
this._memberGetters =
members.Select<SerializingMember,Func<object,object>>(
m => m.Member == null ? (target => null)
: CreateMemberGetter(m)).ToArray();
}
if (isUnpackable)
{
this._unpackFromMessage = delegate(ref object target, Unpacker value)
{
((IUnpackable)target).UnpackFromMessage(value);
};
this._memberSetters = null;
}
else
{
this._unpackFromMessage = null;
this._memberSetters =
members.Select(
m =>
m.Member == null
? delegate(ref object target, object memberValue) { }
:
m.Member.CanSetValue()
? CreateMemberSetter(m)
: UnpackHelpers.IsReadOnlyAppendableCollectionMember(m.Member)
? default(MemberSetter)
: ThrowGetOnlyMemberIsInvalid(m.Member)
).ToArray();
}
}
private static MethodInfo FindInterfaceMethod( Type targetType, Type interfaceType, string name, Type[] parameterTypes )
{
if ( targetType.GetIsInterface() )
{
return targetType.FindInterfaces( ( type, _ ) => type == interfaceType, null ).Single().GetMethod( name, parameterTypes );
}
var map = targetType.GetInterfaceMap( interfaceType );
#if !SILVERLIGHT
int index = Array.FindIndex( map.InterfaceMethods, method => method.Name == name && method.GetParameters().Select( p => p.ParameterType ).SequenceEqual( parameterTypes ) );
#else
int index = map.InterfaceMethods.FindIndex( method => method.Name == name && method.GetParameters().Select( p => p.ParameterType ).SequenceEqual( parameterTypes ) );
#endif
if ( index < 0 )
{
#if DEBUG
Contract.Assert( false, interfaceType + "::" + name + "(" + String.Join( ", ", parameterTypes.Select( t => t.ToString() ).ToArray() ) + ") is not found in " + targetType );
#endif
return null;
}
else
{
return map.TargetMethods[ index ];
}
}
private static MethodInfo FindInterfaceMethod( Type targetType, Type interfaceType, string name, Type[] parameterTypes )
{
if ( targetType.GetIsInterface() )
{
return targetType.FindInterfaces( ( type, _ ) => type == interfaceType, null ).Single().GetMethod( name, parameterTypes );
}
var map = targetType.GetInterfaceMap( interfaceType );
#if !SILVERLIGHT || WINDOWS_PHONE
int index = Array.FindIndex( map.InterfaceMethods, method => method.Name == name && method.GetParameters().Select( p => p.ParameterType ).SequenceEqual( parameterTypes ) );
#else
int index = map.InterfaceMethods.FindIndex( method => method.Name == name && method.GetParameters().Select( p => p.ParameterType ).SequenceEqual( parameterTypes ) );
#endif
if ( index < 0 )
{
#if DEBUG && !UNITY
#if !NETFX_35
Contract.Assert( false, interfaceType + "::" + name + "(" + String.Join<Type>( ", ", parameterTypes ) + ") is not found in " + targetType );
#else
Contract.Assert( false, interfaceType + "::" + name + "(" + String.Join( ", ", parameterTypes.Select( t => t.ToString() ).ToArray() ) + ") is not found in " + targetType );
#endif // !NETFX_35
#endif // DEBUG && !UNITY
// ReSharper disable once HeuristicUnreachableCode
return null;
}
return map.TargetMethods[ index ];
}
public static bool CanHandleType(Type memberType)
{
if (memberType.GetIsInterface())
return false;
if (memberType.GetIsAbstract())
return false;
if (typeof(Delegate).IsAssignableFrom(memberType))
return false;
return true;
}
private static bool FilterCollectionType( Type type, object filterCriteria )
{
#if !NETSTANDARD1_1 && !NETSTANDARD1_3
#if DEBUG
Contract.Assert( type.GetIsInterface(), "type.IsInterface" );
#endif // DEBUG
return type.GetAssembly().Equals( typeof( Array ).GetAssembly() ) && ( type.Namespace == "System.Collections" || type.Namespace == "System.Collections.Generic" );
#else
var typeInfo = type.GetTypeInfo();
Contract.Assert( typeInfo.IsInterface );
return typeInfo.Assembly.Equals( typeof( Array ).GetTypeInfo().Assembly ) && ( type.Namespace == "System.Collections" || type.Namespace == "System.Collections.Generic" );
#endif // !NETSTANDARD1_1 && !NETSTANDARD1_3
}