/// <summary>
/// Initializes a new instance of the <see cref="ObjectContext"/> struct.
/// </summary>
/// <param name="serializerContext">The serializer context.</param>
/// <param name="instance">The instance.</param>
/// <param name="descriptor">The descriptor.</param>
public ObjectContext(SerializerContext serializerContext, object instance, ITypeDescriptor descriptor)
: this()
{
SerializerContext = serializerContext;
Instance = instance;
Descriptor = descriptor;
}
/// <inheritdoc/>
public override IYamlSerializable TryCreate(SerializerContext context, ITypeDescriptor typeDescriptor)
{
return typeDescriptor is DictionaryDescriptor ? this : null;
}
public IYamlSerializable TryCreate(SerializerContext context, ITypeDescriptor typeDescriptor)
{
return typeDescriptor is ArrayDescriptor ? this : null;
}
private static void WriteYaml(SerializerContext context, object value, Type expectedType)
{
var objectContext = new ObjectContext(context, value, context.FindTypeDescriptor(expectedType));
// TODO: we should go through the ObjectSerializerBackend, not directly use the ObjectSerializer!
context.Serializer.ObjectSerializer.WriteYaml(ref objectContext);
}
private static object ReadYaml(SerializerContext context, Type expectedType)
{
var node = context.Reader.Parser.Current;
try
{
var objectContext = new ObjectContext(context, null, context.FindTypeDescriptor(expectedType));
// TODO: we should go through the ObjectSerializerBackend, not directly use the ObjectSerializer!
return context.Serializer.ObjectSerializer.ReadYaml(ref objectContext);
}
catch (Exception ex)
{
throw new YamlException(node.Start, node.End, $"Error while deserializing node [{node}]", ex);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="SerializationStreamBase"/> class.
/// </summary>
public SerializationStream()
{
Context = new SerializerContext();
}
private IYamlSerializable GetSerializer(SerializerContext context, ITypeDescriptor typeDescriptor)
{
IYamlSerializable serializer;
if (!serializers.TryGetValue(typeDescriptor.Type, out serializer))
{
foreach (var factory in factories)
{
serializer = factory.TryCreate(context, typeDescriptor);
if (serializer != null)
{
break;
}
}
}
if (serializer == null)
{
throw new InvalidOperationException("Unable to find a serializer for the type [{0}]".DoFormat(typeDescriptor.Type));
}
return serializer;
}
private void WriteState(SerializerContext context, ParserState state)
{
var writer = context.Writer;
bool hasDefaultAction = state.DefaultAction != null;
writer.Write(hasDefaultAction);
if (hasDefaultAction)
{
WriteAction(context, state.DefaultAction);
}
else
{
writer.Write((ushort)state.Actions.Count);
foreach (var elementActionPair in state.Actions)
{
writer.Write((short)Data.AllElements.IndexOf(elementActionPair.Key));
WriteAction(context, elementActionPair.Value);
}
}
}
public void Serialize(Stream outputStream, ParserAutomaton automaton)
{
var writer = new BinaryWriter(outputStream);
var context = new SerializerContext(automaton, writer);
writer.Write((ushort)automaton.States.Count);
writer.Write((ushort)automaton.DefaultInitialState.Id);
writer.Write((byte)automaton.InitialStates.Count);
foreach (var state in context.Automaton.InitialStates)
WriteInitialStateEntry(writer, state);
foreach (var state in context.Automaton.States)
WriteState(context, state);
}
public override IYamlSerializable TryCreate(SerializerContext context, ITypeDescriptor typeDescriptor)
{
var type = typeDescriptor.Type;
return(CanVisit(type) ? this : null);
}
private void WriteAction(SerializerContext context, ParserAction action)
{
var shiftAction = action as ShiftParserAction;
var writer = context.Writer;
if (shiftAction != null)
{
writer.Write(ShiftParserActionId);
writer.Write((ushort)shiftAction.NextState.Id);
return;
}
var reduceAction = action as ReduceParserAction;
if (reduceAction != null)
{
writer.Write(ReduceParserActionId);
writer.Write((ushort)Data.AllReductions.IndexOf(reduceAction.Reduction));
return;
}
if (action is AcceptParserAction)
{
writer.Write(AcceptarserActionId);
return;
}
throw new NotSupportedException("Action is not supported.");
}
/// <inheritdoc/>
public override IYamlSerializable TryCreate(SerializerContext context, ITypeDescriptor typeDescriptor)
{
return(typeDescriptor.Type == typeof(Entity) ? this : null);
}
/// <inheritdoc/>
public override IYamlSerializable TryCreate(SerializerContext context, ITypeDescriptor typeDescriptor)
{
return(typeDescriptor is DictionaryDescriptor ? this : null);
}
/// <inheritdoc/>
public virtual IYamlSerializable TryCreate(SerializerContext context, ITypeDescriptor typeDescriptor)
{
// always accept
return(this);
}
public IYamlSerializable TryCreate(SerializerContext context, ITypeDescriptor typeDescriptor)
{
return(typeDescriptor.Type == typeof(AssetName) ? this : null);
}
/// <summary>
/// Initializes a new instance of the <see cref="ObjectContext"/> struct.
/// </summary>
/// <param name="serializerContext">The serializer context.</param>
/// <param name="instance">The instance.</param>
/// <param name="descriptor">The descriptor.</param>
public ObjectContext(SerializerContext serializerContext, object instance, ITypeDescriptor descriptor) : this()
{
SerializerContext = serializerContext;
Instance = instance;
Descriptor = descriptor;
}
