Exemplo n.º 1
0
        private async Task ReadContentFromAsync(JsonReader reader, JsonLoadSettings settings, CancellationToken cancellationToken = default)
        {
            IJsonLineInfo lineInfo = reader as IJsonLineInfo;

            JContainer parent = this;

            do
            {
                if (parent is JProperty p && p.Value != null)
                {
                    if (parent == this)
                    {
                        return;
                    }

                    parent = parent.Parent;
                }

                switch (reader.TokenType)
                {
                case JsonToken.None:
                    // new reader. move to actual content
                    break;

                case JsonToken.StartArray:
                    JArray a = new JArray();
                    a.SetLineInfo(lineInfo, settings);
                    parent.Add(a);
                    parent = a;
                    break;

                case JsonToken.EndArray:
                    if (parent == this)
                    {
                        return;
                    }

                    parent = parent.Parent;
                    break;

                case JsonToken.StartObject:
                    JObject o = new JObject();
                    o.SetLineInfo(lineInfo, settings);
                    parent.Add(o);
                    parent = o;
                    break;

                case JsonToken.EndObject:
                    if (parent == this)
                    {
                        return;
                    }

                    parent = parent.Parent;
                    break;

                case JsonToken.StartConstructor:
                    JConstructor constructor = new JConstructor(reader.Value.ToString());
                    constructor.SetLineInfo(lineInfo, settings);
                    parent.Add(constructor);
                    parent = constructor;
                    break;

                case JsonToken.EndConstructor:
                    if (parent == this)
                    {
                        return;
                    }

                    parent = parent.Parent;
                    break;

                case JsonToken.String:
                case JsonToken.Integer:
                case JsonToken.Float:
                case JsonToken.Date:
                case JsonToken.Boolean:
                case JsonToken.Bytes:
                    JValue v = new JValue(reader.Value);
                    v.SetLineInfo(lineInfo, settings);
                    parent.Add(v);
                    break;

                case JsonToken.Comment:
                    if (settings != null && settings.CommentHandling == CommentHandling.Load)
                    {
                        v = JValue.CreateComment(reader.Value.ToString());
                        v.SetLineInfo(lineInfo, settings);
                        parent.Add(v);
                    }
                    break;

                case JsonToken.Null:
                    v = JValue.CreateNull();
                    v.SetLineInfo(lineInfo, settings);
                    parent.Add(v);
                    break;

                case JsonToken.Undefined:
                    v = JValue.CreateUndefined();
                    v.SetLineInfo(lineInfo, settings);
                    parent.Add(v);
                    break;

                case JsonToken.PropertyName:
                    string    propertyName = reader.Value.ToString();
                    JProperty property     = new JProperty(propertyName);
                    property.SetLineInfo(lineInfo, settings);
                    JObject parentObject = (JObject)parent;
                    // handle multiple properties with the same name in JSON
                    JProperty existingPropertyWithName = parentObject.Property(propertyName, StringComparison.OrdinalIgnoreCase);
                    if (existingPropertyWithName == null)
                    {
                        parent.Add(property);
                    }
                    else
                    {
                        existingPropertyWithName.Replace(property);
                    }
                    parent = property;
                    break;

                default:
                    throw new InvalidOperationException("The JsonReader should not be on a token of type {0}.".FormatWith(CultureInfo.InvariantCulture, reader.TokenType));
                }
            } while (await reader.ReadAsync(cancellationToken).ConfigureAwait(false));
        }