internal bool ResolveMapTypes(out Type dictionaryType, out Type keyType, out Type valueType)
{
dictionaryType = keyType = valueType = null;
try
{
#if COREFX || PROFILE259
var info = MemberType.GetTypeInfo();
#else
var info = MemberType;
#endif
if (ImmutableCollectionDecorator.IdentifyImmutable(MemberType, out _, out _, out _, out _, out _, out _))
{
return(false);
}
if (info.IsInterface && info.IsGenericType && info.GetGenericTypeDefinition() == typeof(IDictionary <,>))
{
#if PROFILE259
var typeArgs = MemberType.GetGenericTypeDefinition().GenericTypeArguments;
#else
var typeArgs = MemberType.GetGenericArguments();
#endif
if (IsValidMapKeyType(typeArgs[0]))
{
keyType = typeArgs[0];
valueType = typeArgs[1];
dictionaryType = MemberType;
}
return(false);
}
#if PROFILE259
foreach (var iType in MemberType.GetTypeInfo().ImplementedInterfaces)
#else
foreach (var iType in MemberType.GetInterfaces())
#endif
{
#if COREFX || PROFILE259
info = iType.GetTypeInfo();
#else
info = iType;
#endif
if (info.IsGenericType && info.GetGenericTypeDefinition() == typeof(IDictionary <,>))
{
if (dictionaryType != null)
{
throw new InvalidOperationException("Multiple dictionary interfaces implemented by type: " + MemberType.FullName);
}
#if PROFILE259
var typeArgs = iType.GetGenericTypeDefinition().GenericTypeArguments;
#else
var typeArgs = iType.GetGenericArguments();
#endif
if (IsValidMapKeyType(typeArgs[0]))
{
keyType = typeArgs[0];
valueType = typeArgs[1];
dictionaryType = MemberType;
}
}
}
if (dictionaryType == null)
{
return(false);
}
// (note we checked the key type already)
// not a map if value is repeated
Type itemType = null, defaultType = null;
model.ResolveListTypes(valueType, ref itemType, ref defaultType);
if (itemType != null)
{
return(false);
}
return(dictionaryType != null);
}
catch
{
// if it isn't a good fit; don't use "map"
return(false);
}
}
