private static string GetCannotDuplicateKnownTypeCodeErrorMessage( PolymorphismTarget target, string typeCode, string memberName, int tupleItemNumber )
{
switch ( target )
{
case PolymorphismTarget.CollectionItem:
{
return
String.Format(
CultureInfo.CurrentCulture,
"Cannot specify multiple types for ext-type code '{0}' for collection items of member '{1}'.",
StringEscape.ForDisplay( typeCode ),
memberName
);
}
case PolymorphismTarget.DictionaryKey:
{
return
String.Format(
CultureInfo.CurrentCulture,
"Cannot specify multiple types for ext-type code '{0}' for dictionary keys of member '{1}'.",
StringEscape.ForDisplay( typeCode ),
memberName
);
}
case PolymorphismTarget.TupleItem:
{
return
String.Format(
CultureInfo.CurrentCulture,
"Cannot specify multiple types for ext-type code '{0}' for #{1} item of tuple type member '{2}'.",
StringEscape.ForDisplay( typeCode ),
tupleItemNumber,
memberName
);
}
default:
{
return
String.Format(
CultureInfo.CurrentCulture,
"Cannot specify multiple types for ext-type code '{0}' for member '{1}'.",
StringEscape.ForDisplay( typeCode ),
memberName
);
}
}
}
private static string GetCannotSpecifyKnownTypeAndRuntimeTypeErrorMessage( PolymorphismTarget target, string memberName, int? tupleItemNumber )
{
switch ( target )
{
case PolymorphismTarget.CollectionItem:
{
return
String.Format(
CultureInfo.CurrentCulture,
"Cannot specify '{0}' and '{1}' simultaneously to collection items of member '{2}' itself.",
typeof( MessagePackRuntimeCollectionItemTypeAttribute ),
typeof( MessagePackKnownCollectionItemTypeAttribute ),
memberName
);
}
case PolymorphismTarget.DictionaryKey:
{
return
String.Format(
CultureInfo.CurrentCulture,
"Cannot specify '{0}' and '{1}' simultaneously to dictionary keys of member '{2}' itself.",
typeof( MessagePackRuntimeDictionaryKeyTypeAttribute ),
typeof( MessagePackKnownDictionaryKeyTypeAttribute ),
memberName
);
}
case PolymorphismTarget.TupleItem:
{
return
String.Format(
CultureInfo.CurrentCulture,
"Cannot specify '{0}' and '{1}' simultaneously to #{2} item of tuple type member '{3}' itself.",
typeof( MessagePackRuntimeTupleItemTypeAttribute ),
typeof( MessagePackKnownTupleItemTypeAttribute ),
tupleItemNumber,
memberName
);
}
default:
{
return
String.Format(
CultureInfo.CurrentCulture,
"Cannot specify '{0}' and '{1}' simultaneously to member '{2}' itself.",
typeof( MessagePackRuntimeTypeAttribute ),
typeof( MessagePackKnownTypeAttribute ),
memberName
);
}
}
}
private void SetRuntimeType( PolymorphismTarget target, string memberName, int tupleItemNumber, Func<PolymorphicTypeVerificationContext, bool> typeVerifier )
{
if ( this._knownTypeMapping.Count > 0 )
{
throw new SerializationException(
GetCannotSpecifyKnownTypeAndRuntimeTypeErrorMessage( target, memberName, tupleItemNumber )
);
}
this.TypeVerifier = typeVerifier;
this._useTypeEmbedding = true;
}
private void SetKnownType( PolymorphismTarget target, string memberName, int tupleItemNumber, string typeCode, Type bindingType )
{
if ( this._useTypeEmbedding )
{
throw new SerializationException(
GetCannotSpecifyKnownTypeAndRuntimeTypeErrorMessage( target, memberName, tupleItemNumber )
);
}
try
{
this._knownTypeMapping.Add( typeCode, bindingType );
this.TypeVerifier = DefaultTypeVerfiier;
}
catch ( ArgumentException )
{
throw new SerializationException(
GetCannotDuplicateKnownTypeCodeErrorMessage( target, typeCode, memberName, tupleItemNumber )
);
}
}
private void SetDefault( PolymorphismTarget target, string memberName, int tupleItemNumber, PolymorphismSchema defaultSchema )
{
if ( this._useTypeEmbedding || this._knownTypeMapping.Count > 0 )
{
// Default is not required.
return;
}
switch ( defaultSchema.PolymorphismType )
{
case PolymorphismType.KnownTypes:
{
foreach ( var typeMapping in defaultSchema.CodeTypeMapping )
{
this.SetKnownType( target, memberName, tupleItemNumber, typeMapping.Key, typeMapping.Value );
}
break;
}
case PolymorphismType.RuntimeType:
{
this.SetRuntimeType( target, memberName, tupleItemNumber, defaultSchema.TypeVerifier );
break;
}
}
}
public static TypeTableEntry Create( MemberInfo member, PolymorphismTarget targetType, PolymorphismSchema defaultSchema )
{
var result = new TypeTableEntry();
var memberName = member.ToString();
foreach (
var attribute in
member.GetCustomAttributes( false )
.OfType<IPolymorphicHelperAttribute>()
.Where( a => a.Target == targetType )
)
{
// TupleItem schema should never come here, so passing -1 as tupleItemNumber is OK.
result.Interpret( attribute, memberName, -1 );
}
if ( defaultSchema != null )
{
// TupleItem schema should never come here, so passing -1 as tupleItemNumber is OK.
result.SetDefault( targetType, memberName, -1, defaultSchema );
}
return result;
}