|
static private NewTargetDoesNotHavePublicDefaultConstructor ( |
||
| type | The target type. | |
| 리턴 | ||
public static SerializationTarget Prepare(SerializationContext context, Type targetType)
{
var getters = GetTargetMembers(targetType).OrderBy(entry => entry.Contract.Id).ToArray();
if (getters.Length == 0)
{
throw new SerializationException(String.Format(CultureInfo.CurrentCulture, "Cannot serialize type '{0}' because it does not have any serializable fields nor properties.", targetType));
}
var memberCandidates = getters.Where(entry => CheckTargetEligibility(entry.Member)).ToArray();
if (memberCandidates.Length == 0)
{
var constructor = FindDeserializationConstructor(targetType);
return(new SerializationTarget(ComplementMembers(getters, context, targetType), constructor));
}
var defaultConstructor = targetType.GetConstructor(ReflectionAbstractions.EmptyTypes);
if (defaultConstructor == null && !targetType.GetIsValueType())
{
throw SerializationExceptions.NewTargetDoesNotHavePublicDefaultConstructor(targetType);
}
// Because members' order is equal to declared order is NOT guaranteed, so explicit ordering is required.
IList <SerializingMember> members;
if (memberCandidates.All(item => item.Contract.Id == DataMemberContract.UnspecifiedId))
{
// Alphabetical order.
members = memberCandidates.OrderBy(item => item.Contract.Name).ToArray();
}
else
{
// ID order.
members = ComplementMembers(memberCandidates, context, targetType);
}
return(new SerializationTarget(members, defaultConstructor));
}
public static SerializationTarget Prepare(SerializationContext context, Type targetType)
{
var getters = GetTargetMembers(targetType).OrderBy(entry => entry.Contract.Id).ToArray();
if (getters.Length == 0)
{
throw new SerializationException(String.Format(CultureInfo.CurrentCulture, "Cannot serialize type '{0}' because it does not have any serializable fields nor properties.", targetType));
}
bool?canDeserialize = null;
var memberCandidates = getters.Where(entry => CheckTargetEligibility(entry.Member)).ToArray();
if (memberCandidates.Length == 0)
{
var deserializationConstructor = FindDeserializationConstructor(context, targetType, out canDeserialize);
var complementedMembers = ComplementMembers(getters, context, targetType);
var correspondingMemberNames = FindCorrespondingMemberNames(complementedMembers, deserializationConstructor);
return
(new SerializationTarget(
complementedMembers,
deserializationConstructor,
correspondingMemberNames,
canDeserialize
));
}
// Try to get default constructor.
var constructor = targetType.GetConstructor(ReflectionAbstractions.EmptyTypes);
if (constructor == null && !targetType.GetIsValueType())
{
// Try to get deserialization constructor.
var deserializationConstructor = FindDeserializationConstructor(context, targetType, out canDeserialize);
if (deserializationConstructor == null && !context.CompatibilityOptions.AllowAsymmetricSerializer)
{
throw SerializationExceptions.NewTargetDoesNotHavePublicDefaultConstructor(targetType);
}
constructor = deserializationConstructor;
}
else
{
// Let's prefer annotated constructor here.
var markedConstructors = FindExplicitDeserializationConstructors(targetType.GetConstructors());
if (markedConstructors.Count == 1)
{
// For backward compatibility, no exceptions are thrown here even if mulitiple deserialization constructor attributes in the type
// just use default constructor for it.
constructor = markedConstructors[0];
}
// OK, appropriate constructor and setters are found.
canDeserialize = true;
}
// Because members' order is equal to declared order is NOT guaranteed, so explicit ordering is required.
IList <SerializingMember> members;
if (memberCandidates.All(item => item.Contract.Id == DataMemberContract.UnspecifiedId))
{
// Alphabetical order.
members = memberCandidates.OrderBy(item => item.Contract.Name).ToArray();
}
else
{
// ID order.
members = ComplementMembers(memberCandidates, context, targetType);
}
return
(new SerializationTarget(
members,
constructor,
FindCorrespondingMemberNames(members, constructor),
canDeserialize
));
}
public static SerializationTarget Prepare(SerializationContext context, Type targetType)
{
VerifyCanSerializeTargetType(context, targetType);
IEnumerable <string> memberIgnoreList = context.BindingOptions.GetIgnoringMembers(targetType);
var getters = GetTargetMembers(targetType)
.Where(getter => !memberIgnoreList.Contains(getter.MemberName, StringComparer.Ordinal))
.OrderBy(entry => entry.Contract.Id)
.ToArray();
if (getters.Length == 0 &&
!typeof(IPackable).IsAssignableFrom(targetType) &&
!typeof(IUnpackable).IsAssignableFrom(targetType)
#if FEATURE_TAP
&& (context.SerializerOptions.WithAsync &&
(!typeof(IAsyncPackable).IsAssignableFrom(targetType) &&
!typeof(IAsyncUnpackable).IsAssignableFrom(targetType)
)
)
#endif // FEATURE_TAP
)
{
throw new SerializationException(String.Format(CultureInfo.CurrentCulture, "Cannot serialize type '{0}' because it does not have any serializable fields nor properties.", targetType));
}
var memberCandidates = getters.Where(entry => CheckTargetEligibility(context, entry.Member)).ToArray();
if (memberCandidates.Length == 0 && !context.CompatibilityOptions.AllowAsymmetricSerializer)
{
ConstructorKind constructorKind;
var deserializationConstructor = FindDeserializationConstructor(context, targetType, out constructorKind);
var complementedMembers = ComplementMembers(getters, context, targetType);
var correspondingMemberNames = FindCorrespondingMemberNames(complementedMembers, deserializationConstructor);
return
(new SerializationTarget(
complementedMembers,
deserializationConstructor,
correspondingMemberNames,
DetermineCanDeserialize(constructorKind, context, targetType, correspondingMemberNames, allowDefault: false)
));
}
else
{
bool? canDeserialize;
ConstructorKind constructorKind;
// Try to get default constructor.
var constructor = targetType.GetConstructor(ReflectionAbstractions.EmptyTypes);
if (constructor == null && !targetType.GetIsValueType())
{
// Try to get deserialization constructor.
var deserializationConstructor = FindDeserializationConstructor(context, targetType, out constructorKind);
if (deserializationConstructor == null && !context.CompatibilityOptions.AllowAsymmetricSerializer)
{
throw SerializationExceptions.NewTargetDoesNotHavePublicDefaultConstructor(targetType);
}
constructor = deserializationConstructor;
canDeserialize = null;
}
else if (memberCandidates.Length == 0)
{
#if DEBUG
Contract.Assert(context.CompatibilityOptions.AllowAsymmetricSerializer);
#endif // DEBUG
// Absolutely cannot deserialize in this case.
canDeserialize = false;
constructorKind = ConstructorKind.Ambiguous;
}
else
{
constructorKind = ConstructorKind.Default;
// Let's prefer annotated constructor here.
var markedConstructors = FindExplicitDeserializationConstructors(targetType.GetConstructors());
if (markedConstructors.Count == 1)
{
// For backward compatibility, no exceptions are thrown here even if mulitiple deserialization constructor attributes in the type
// just use default constructor for it.
constructor = markedConstructors[0];
constructorKind = ConstructorKind.Marked;
}
// OK, appropriate constructor and setters are found.
canDeserialize = true;
}
if (constructor != null && constructor.GetParameters().Any() || context.CompatibilityOptions.AllowAsymmetricSerializer)
{
// Recalculate members because getter-only/readonly members should be included for constructor deserialization.
memberCandidates = getters;
}
// Because members' order is equal to declared order is NOT guaranteed, so explicit ordering is required.
IList <SerializingMember> members;
if (memberCandidates.All(item => item.Contract.Id == DataMemberContract.UnspecifiedId))
{
// Alphabetical order.
members = memberCandidates.OrderBy(item => item.Contract.Name).ToArray();
}
else
{
// ID order.
members = ComplementMembers(memberCandidates, context, targetType);
}
var correspondingMemberNames = FindCorrespondingMemberNames(members, constructor);
return
(new SerializationTarget(
members,
constructor,
correspondingMemberNames,
canDeserialize ?? DetermineCanDeserialize(constructorKind, context, targetType, correspondingMemberNames, allowDefault: true)
));
}
}
