/// <summary>
/// Reads the next node from the <paramref name="jsonReader"/>, verifies that it is a Property node and returns the property name.
/// </summary>
/// <param name="jsonReader">The <see cref="JsonReader"/> to read from.</param>
/// <returns>The property name of the property node read.</returns>
internal static string ReadPropertyName(this IJsonReader jsonReader)
{
Debug.Assert(jsonReader != null, "jsonReader != null");
jsonReader.ValidateNodeType(JsonNodeType.Property);
string propertyName = jsonReader.GetPropertyName();
jsonReader.ReadNext();
return(propertyName);
}
/// <summary>
/// Skips over a JSON value (primitive, object or array), and append raw string to StringBuilder.
/// </summary>
/// <param name="jsonReader">The <see cref="JsonReader"/> to read from.</param>
/// <param name="jsonRawValueStringBuilder">The StringBuilder to receive JSON raw string.</param>
internal static void SkipValue(this IJsonReader jsonReader, StringBuilder jsonRawValueStringBuilder)
{
Debug.Assert(jsonReader != null, "jsonReader != null");
using (StringWriter stringWriter = new StringWriter(jsonRawValueStringBuilder, CultureInfo.InvariantCulture))
{
JsonWriter jsonWriter = new JsonWriter(stringWriter, isIeee754Compatible: false);
int depth = 0;
do
{
switch (jsonReader.NodeType)
{
case JsonNodeType.PrimitiveValue:
if (jsonReader.Value == null)
{
jsonWriter.WriteValue((string)null);
}
else
{
jsonWriter.WritePrimitiveValue(jsonReader.Value);
}
break;
case JsonNodeType.StartArray:
jsonWriter.StartArrayScope();
depth++;
break;
case JsonNodeType.StartObject:
jsonWriter.StartObjectScope();
depth++;
break;
case JsonNodeType.EndArray:
jsonWriter.EndArrayScope();
Debug.Assert(depth > 0, "Seen too many scope ends.");
depth--;
break;
case JsonNodeType.EndObject:
jsonWriter.EndObjectScope();
Debug.Assert(depth > 0, "Seen too many scope ends.");
depth--;
break;
case JsonNodeType.Property:
jsonWriter.WriteName(jsonReader.GetPropertyName());
break;
default:
Debug.Assert(
jsonReader.NodeType != JsonNodeType.EndOfInput,
"We should not have reached end of input, since the scopes should be well formed. Otherwise JsonReader should have failed by now.");
break;
}
}while (jsonReader.Read() && depth > 0);
if (depth > 0)
{
// Not all open scopes were closed:
// "Invalid JSON. Unexpected end of input was found in JSON content. Not all object and array scopes were closed."
throw JsonReaderExtensions.CreateException(Strings.JsonReader_EndOfInputWithOpenScope);
}
jsonWriter.Flush();
}
}
