示例#1
0
        public object DeserializeValue(EventReader reader, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
        {
            object value;
            var    alias = reader.Allow <AnchorAlias>();

            if (alias != null)
            {
                var          aliasState = state.Get <AliasState>();
                ValuePromise valuePromise;
                if (!aliasState.TryGetValue(alias.Value, out valuePromise))
                {
                    valuePromise = new ValuePromise(alias);
                    aliasState.Add(alias.Value, valuePromise);
                }

                return(valuePromise.HasValue ? valuePromise.Value : valuePromise);
            }

            string anchor = null;

            var nodeEvent = reader.Peek <NodeEvent>();

            if (nodeEvent != null && !string.IsNullOrEmpty(nodeEvent.Anchor))
            {
                anchor = nodeEvent.Anchor;
            }

            value = innerDeserializer.DeserializeValue(reader, expectedType, state, nestedObjectDeserializer);

            if (anchor != null)
            {
                var aliasState = state.Get <AliasState>();

                ValuePromise valuePromise;
                if (!aliasState.TryGetValue(anchor, out valuePromise))
                {
                    aliasState.Add(anchor, new ValuePromise(value));
                }
                else if (!valuePromise.HasValue)
                {
                    valuePromise.Value = value;
                }
                else
                {
                    throw new DuplicateAnchorException(alias.Start, alias.End, string.Format(
                                                           "Anchor '{0}' already defined",
                                                           alias.Value
                                                           ));
                }
            }

            return(value);
        }
        public object DeserializeValue(EventReader reader, Type expectedType, SerializerState state, IValueDeserializer nestedObjectDeserializer)
        {
            object value;
            var    alias = reader.Allow <AnchorAlias>();

            if (alias != null)
            {
                var aliasState = state.Get <AliasState>();
                if (aliasState.TryGetValue(alias.Value, out value))
                {
                    return(value);
                }

                throw new AnchorNotFoundException(alias.Start, alias.End, string.Format(
                                                      "Anchor '{0}' not found",
                                                      alias.Value
                                                      ));
            }

            string anchor = null;

            var nodeEvent = reader.Peek <NodeEvent>();

            if (nodeEvent != null && !string.IsNullOrEmpty(nodeEvent.Anchor))
            {
                anchor = nodeEvent.Anchor;
            }

            value = innerDeserializer.DeserializeValue(reader, expectedType, state, nestedObjectDeserializer);

            if (anchor != null)
            {
                var aliasState = state.Get <AliasState>();
                aliasState.Add(anchor, value);
            }

            return(value);
        }