/// <summary>
/// Parses out a JSON property AST node with a jsonTextReader.
/// </summary>
/// <param name="jsonTextReader">The reader to use as a lexer / tokenizer</param>
/// <returns>JSON property AST node</returns>
private static ObjectProperty ParsePropertyNode(IJsonReader jsonTextReader)
{
FieldNameNode fieldName = FieldNameNode.Create((ArraySegment<byte>)jsonTextReader.GetBufferedRawJsonToken());
// Consume the fieldname from the jsonreader
jsonTextReader.Read();
JsonTextNode value = JsonTextParser.ParseNode(jsonTextReader);
return new ObjectProperty(fieldName, value);
}
/// <summary>
/// Parses out a JSON array AST node with a jsonTextReader.
/// </summary>
/// <param name="jsonTextReader">The reader to use as a lexer / tokenizer</param>
/// <returns>JSON array AST node</returns>
private static ArrayNode ParseArrayNode(IJsonReader jsonTextReader)
{
List <JsonTextNode> items = new List <JsonTextNode>();
// consume the begin array token
jsonTextReader.Read();
while (jsonTextReader.CurrentTokenType != JsonTokenType.EndArray)
{
items.Add(JsonTextParser.ParseNode(jsonTextReader));
}
// consume the end array token
jsonTextReader.Read();
return(ArrayNode.Create(items));
}
/// <summary>
/// Gets the root node of a JSON AST from a jsonTextReader.
/// </summary>
/// <param name="jsonTextReader">The reader to use as a lexer / tokenizer</param>
/// <returns>The root node of a JSON AST from a jsonTextReader.</returns>
public static JsonTextNode Parse(IJsonReader jsonTextReader)
{
if (jsonTextReader.SerializationFormat != JsonSerializationFormat.Text)
{
throw new ArgumentException("jsonTextReader's serialization format must actually be text");
}
// Read past the json object not started state.
jsonTextReader.Read();
JsonTextNode rootNode = JsonTextParser.ParseNode(jsonTextReader);
// Make sure that we are at the end of the file.
if (jsonTextReader.Read())
{
throw new ArgumentException("Did not fully parse json");
}
return(rootNode);
}
