protected override Action <object> OnThrowValueTypeCannotBeNull3OnUnpacked(ReflectionSerializerNilImplicationHandlerOnUnpackedParameter parameter)
{
return
(_ =>
{
throw SerializationExceptions.NewValueTypeCannotBeNull(
parameter.MemberName,
parameter.ItemType,
parameter.DeclaringType
);
});
}
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 void EmitNilImplicationForPrimitive(TracingILGenerator il, SerializingMember member, LocalBuilder value, Label endOfDeserialization)
{
var endIf = il.DefineLabel("END_IF_NULL");
EmitCompareNull(il, value, endIf);
switch (member.Contract.NilImplication)
{
case NilImplication.MemberDefault:
{
/*
* if( value == null )
* {
* // Skip current.
* goto END_OF_DESERIALIZATION;
* }
*/
il.EmitBr(endOfDeserialization);
break;
}
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
);
}
// TODO: Refactoring
// Throw exception for non-nullable value type.
// Nop for nullables.
if (member.Member.GetMemberValueType().GetIsValueType() &&
Nullable.GetUnderlyingType(member.Member.GetMemberValueType()) == null)
{
/*
* if( value == null )
* {
* throw SerializationEceptions.NewValueTypeCannotBeNull( "...", typeof( MEMBER ), typeof( TYPE ) );
* }
*/
il.EmitLdstr(member.Contract.Name);
il.EmitLdtoken(member.Member.GetMemberValueType());
il.EmitAnyCall(Metadata._Type.GetTypeFromHandle);
il.EmitLdtoken(member.Member.DeclaringType);
il.EmitAnyCall(Metadata._Type.GetTypeFromHandle);
il.EmitAnyCall(SerializationExceptions.NewValueTypeCannotBeNull3Method);
il.EmitThrow();
}
break;
}
case NilImplication.Prohibit:
{
/*
* if( value == null )
* {
* throw SerializationEceptions.NewProhibitNullException( "..." );
* }
*/
il.EmitLdstr(member.Contract.Name);
il.EmitAnyCall(SerializationExceptions.NewNullIsProhibitedMethod);
il.EmitThrow();
break;
}
}
il.MarkLabel(endIf);
}
/// <summary>
/// Emits the nil implication.
/// </summary>
/// <param name="il">The il generator.</param>
/// <param name="unpackerArgumentIndex">Index of the unpacker argument.</param>
/// <param name="member">Metadata of the serializing member.</param>
/// <param name="endOfDeserialization">The label to the end of deserialization.</param>
/// <param name="localHolder">The <see cref="LocalVariableHolder"/> which holds shared local variable information.</param>
public static void EmitNilImplication(
TracingILGenerator il,
int unpackerArgumentIndex,
SerializingMember member,
Label endOfDeserialization,
LocalVariableHolder localHolder
)
{
switch (member.Contract.NilImplication)
{
case NilImplication.MemberDefault:
{
// TODO: This should be empty for extra items.
/*
* if( unpacker.Data.Value.IsNil )
* {
* // Skip current.
* goto END_OF_DESERIALIZATION;
* }
*/
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(Metadata._Unpacker.LastReadData);
var data = localHolder.UnpackedData;
il.EmitAnyStloc(data);
il.EmitAnyLdloca(data);
il.EmitGetProperty(Metadata._MessagePackObject.IsNil);
il.EmitBrtrue(endOfDeserialization);
break;
}
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;
}
case NilImplication.Prohibit:
{
if (!member.Member.CanSetValue())
{
throw SerializationExceptions.NewReadOnlyMemberItemsMustNotBeNull(
member.Contract.Name
);
}
/*
* if( unpacker.Data.Value.IsNil )
* {
* throw SerializationEceptions.NewProhibitNullException( "..." );
* }
*/
il.EmitAnyLdarg(unpackerArgumentIndex);
il.EmitGetProperty(Metadata._Unpacker.LastReadData);
var data = localHolder.UnpackedData;
il.EmitAnyStloc(data);
il.EmitAnyLdloca(data);
il.EmitGetProperty(Metadata._MessagePackObject.IsNil);
var endIf0 = il.DefineLabel("END_IF0");
il.EmitBrfalse_S(endIf0);
il.EmitLdstr(member.Contract.Name);
il.EmitAnyCall(SerializationExceptions.NewNullIsProhibitedMethod);
il.EmitThrow();
il.MarkLabel(endIf0);
break;
}
}
}
protected ObjectExpressionMessagePackSerializer(SerializationContext context, SerializingMember[] members)
: base((context ?? SerializationContext.Default).CompatibilityOptions.PackerCompatibilityOptions)
{
if (typeof(T).GetIsAbstract() || typeof(T).GetIsInterface())
{
throw SerializationExceptions.NewNotSupportedBecauseCannotInstanciateAbstractType(typeof(T));
}
this._createInstance =
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(typeof(T));
var isUnpackable = typeof(IUnpackable).IsAssignableFrom(typeof(T));
var targetParameter = Expression.Parameter(typeof(T), "target");
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
.Zip(Enumerable.Range(0, members.Length), (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)
{
var packerParameter = Expression.Parameter(typeof(Packer), "packer");
var optionsParameter = Expression.Parameter(typeof(PackingOptions), "options");
this._packToMessage =
Expression.Lambda <Action <T, Packer, PackingOptions> >(
Expression.Call(
targetParameter,
typeof(T).GetInterfaceMap(typeof(IPackable)).TargetMethods.Single(),
packerParameter,
optionsParameter
),
targetParameter, packerParameter, optionsParameter
).Compile();
this._memberGetters = null;
}
else
{
this._packToMessage = null;
this._memberGetters =
members.Select(
m =>
m.Member == null
? Expression.Lambda <Func <T, object> >(
Expression.Constant(null),
targetParameter
).Compile()
: CreateMemberGetter(targetParameter, m)
).ToArray();
}
var refTargetParameter = Expression.Parameter(typeof(T).MakeByRefType(), "target");
if (isUnpackable)
{
var unpackerParameter = Expression.Parameter(typeof(Unpacker), "unpacker");
this._unpackFromMessage =
Expression.Lambda <UnpackFromMessageInvocation>(
Expression.Call(
refTargetParameter,
typeof(T).GetInterfaceMap(typeof(IUnpackable)).TargetMethods.Single(),
unpackerParameter
),
refTargetParameter, unpackerParameter
).Compile();
this._memberSetters = null;
}
else
{
this._unpackFromMessage = null;
var valueParameter = Expression.Parameter(typeof(object), "value");
this._memberSetters =
members.Select(
m =>
m.Member == null
? Expression.Lambda <MemberSetter>(
Expression.Empty(),
refTargetParameter,
valueParameter
).Compile()
: m.Member.CanSetValue()
? Expression.Lambda <MemberSetter>(
Expression.Assign(
Expression.PropertyOrField(
refTargetParameter,
m.Member.Name
),
Expression.Call(
Metadata._UnpackHelpers.ConvertWithEnsuringNotNull_1Method.MakeGenericMethod(m.Member.GetMemberValueType()),
valueParameter,
Expression.Constant(m.Member.Name),
Expression.Call( // Using RuntimeTypeHandle to avoid WinRT expression tree issue.
null,
Metadata._Type.GetTypeFromHandle,
Expression.Constant(m.Member.DeclaringType.TypeHandle)
)
)
),
refTargetParameter,
valueParameter
).Compile()
: UnpackHelpers.IsReadOnlyAppendableCollectionMember(m.Member)
? default(MemberSetter)
: ThrowGetOnlyMemberIsInvalid(m.Member)
).ToArray();
}
}
