static IEnumerable <string> BuildCSharpMembers(CompositeDsdlTypeBase type)
{
foreach (var m in type.Fields)
{
var fieldType = GetCSharpType(m.Type, type.IsUnion);
if (fieldType != null)
{
yield return($"[DataMember(Name = \"{m.Name}\")]");
yield return($"public {fieldType} {GetCSharpPropertyName(m.Name)} {{ get; set; }}");
}
}
}
static void ResolveNestedTypesCore(CompositeDsdlTypeBase t, IUavcanTypeResolver typeResolver)
{
foreach (var f in t.Fields)
{
if (f.Type is DsdlTypeReference reference)
{
var nestedType = typeResolver.ResolveType(reference.Namespace, reference.Name);
f.Type = CastNestedType(nestedType);
}
else if (f.Type is ArrayDsdlType adt && adt.ElementType is DsdlTypeReference elementTypeReference)
{
var nestedType = typeResolver.ResolveType(elementTypeReference.Namespace, elementTypeReference.Name);
adt.SetElementType(CastNestedType(nestedType));
}
}
}
object PopulateDictionary(
IDictionary dictionary,
BitStreamReader reader,
DictionaryContract contract,
DsdlProperty containerProperty,
CompositeDsdlTypeBase scheme,
bool tailArrayOptimization)
{
object underlyingDictionary = dictionary is IWrappedDictionary wrappedDictionary ? wrappedDictionary.UnderlyingDictionary : dictionary;
if (contract.KeyContract == null)
{
contract.KeyContract = GetContractSafe(contract.DictionaryKeyType);
}
if (contract.ItemContract == null)
{
contract.ItemContract = GetContractSafe(contract.DictionaryValueType);
}
foreach (var(field, tao) in EnumerateSchemeFields(reader, scheme, tailArrayOptimization))
{
if (field.Type is VoidDsdlType t)
{
ReadAlignment(reader, t);
continue;
}
var keyValue = EnsureType(reader, field.Name, CultureInfo.InvariantCulture, contract.KeyContract, contract.DictionaryKeyType);
var itemValue = CreateValueInternal(reader,
contract.ItemContract,
null,
contract,
containerProperty,
null,
field.Type,
null,
tao);
dictionary[keyValue] = itemValue;
}
return(underlyingDictionary);
}
static void PrintObject(object obj, StringBuilder sb, int tabs, CompositeDsdlTypeBase t)
{
var dict = obj as IDictionary;
if (dict == null)
{
throw new ArgumentException("Cannot cast object to dictionary.", nameof(obj));
}
if (tabs != 0)
{
sb.AppendLine("{");
}
bool isFirst = true;
foreach (var field in t.Fields)
{
if (!isFirst)
{
sb.Append(",");
sb.AppendLine();
}
isFirst = false;
Tab(sb, tabs);
sb.Append(field.Name);
sb.Append(": ");
if (dict.Contains(field.Name))
{
var value = dict[field.Name];
Print(value, sb, tabs + 1, field.Type);
}
}
if (tabs != 0)
{
sb.AppendLine();
Tab(sb, tabs - 1);
sb.Append("}");
}
}
void ValidateDsdlTypeCompatibility(ObjectContract contract, CompositeDsdlTypeBase scheme)
{
if (scheme == null)
{
return;
}
foreach (var member in scheme.Fields)
{
if (member.Type is VoidDsdlType)
{
continue;
}
if (contract.Properties.GetProperty(member.Name, StringComparison.Ordinal) == null)
{
throw new InvalidOperationException($"Cannot find {member.Name} member for type {contract.UnderlyingType.FullName}.");
}
}
}
IEnumerable <(DsdlField Field, bool TAO)> EnumerateSchemeFields(
BitStreamReader reader,
CompositeDsdlTypeBase scheme,
bool tailArrayOptimization)
{
if (scheme.IsUnion)
{
var unionFieldIndex = ReadUnionFieldIndex(reader, scheme);
var field = scheme.Fields[unionFieldIndex];
yield return(field, false);
}
else
{
for (int i = 0; i < scheme.Fields.Count - 1; i++)
{
var field = scheme.Fields[i];
yield return(field, false);
}
if (scheme.Fields.Count > 0)
{
var field = scheme.Fields[scheme.Fields.Count - 1];
switch (field.Type)
{
case ArrayDsdlType _:
yield return(field, tailArrayOptimization);
break;
default:
yield return(field, false);
break;
}
}
}
}
private object PopulateObject(
object newObject,
BitStreamReader
reader,
ObjectContract contract,
DsdlProperty member,
CompositeDsdlTypeBase scheme,
bool tailArrayOptimization)
{
foreach (var(field, tao) in EnumerateSchemeFields(reader, scheme, tailArrayOptimization))
{
if (field.Type is VoidDsdlType t)
{
ReadAlignment(reader, t);
continue;
}
// attempt exact case match first
// then try match ignoring case
DsdlProperty property = contract.Properties.GetClosestMatchProperty(field.Name);
if (property == null)
{
throw new SerializationException($"Could not find member '{field.Name}' on object of type '{contract.UnderlyingType.FullName}'");
}
if (property.PropertyContract == null)
{
property.PropertyContract = GetContractSafe(property.PropertyType);
}
SetPropertyValue(property, contract, member, reader, newObject, field.Type, tao);
}
return(newObject);
}
object CreateObject(
BitStreamReader reader,
IContract contract,
DsdlProperty member,
ContainerContract containerContract,
DsdlProperty containerMember,
object existingValue,
Type objectType,
CompositeDsdlTypeBase scheme,
bool tailArrayOptimization)
{
if (HasNoDefinedType(contract))
{
return(CreateUnknownObject(reader, scheme));
}
switch (contract)
{
case ObjectContract objectContract:
{
bool createdFromNonDefaultCreator = false;
object targetObject;
// check that if type name handling is being used that the existing value is compatible with the specified type
if (existingValue != null && objectType != null && objectType.IsAssignableFrom(existingValue.GetType()))
{
targetObject = existingValue;
}
else
{
targetObject = CreateNewObject(reader, objectContract, member, containerMember, out createdFromNonDefaultCreator);
}
// don't populate if read from non-default creator because the object has already been read
if (createdFromNonDefaultCreator)
{
return(targetObject);
}
return(PopulateObject(targetObject, reader, objectContract, member, scheme, tailArrayOptimization));
}
case DictionaryContract dictionaryContract:
{
object targetDictionary;
if (existingValue == null)
{
var dictionary = CreateNewDictionary(reader, dictionaryContract, out bool createdFromNonDefaultCreator);
if (createdFromNonDefaultCreator && !dictionaryContract.HasParameterizedCreatorInternal)
{
throw new SerializationException("Cannot deserialize readonly or fixed size dictionary: {0}.".FormatWith(CultureInfo.InvariantCulture, contract.UnderlyingType));
}
PopulateDictionary(dictionary, reader, dictionaryContract, member, scheme, tailArrayOptimization);
if (createdFromNonDefaultCreator)
{
ObjectConstructor <object> creator = dictionaryContract.OverrideCreator ?? dictionaryContract.ParameterizedCreator;
return(creator(dictionary));
}
else if (dictionary is IWrappedDictionary wrappedDictionary)
{
return(wrappedDictionary.UnderlyingDictionary);
}
targetDictionary = dictionary;
}
else
{
targetDictionary = PopulateDictionary(
dictionaryContract.ShouldCreateWrapper || !(existingValue is IDictionary) ? dictionaryContract.CreateWrapper(existingValue) : (IDictionary)existingValue,
reader,
dictionaryContract,
member,
scheme,
tailArrayOptimization);
}
return(targetDictionary);
}
}
throw new SerializationException($"Cannot deserialize the current object.");
}
int ReadUnionFieldIndex(BitStreamReader reader, CompositeDsdlTypeBase t)
{
var bitLen = BitSerializer.IntBitLength(t.Fields.Count);
return((int)BitSerializer.ReadUInt(reader, bitLen));
}
void WriteUnionFieldIndex(BitStreamWriter writer, int index, CompositeDsdlTypeBase t)
{
var bitLen = BitSerializer.IntBitLength(t.Fields.Count);
BitSerializer.Write(writer, index, bitLen);
}
