diff options
Diffstat (limited to 'csharp/src/Google.Protobuf/JsonTokenizer.cs')
| -rw-r--r-- | csharp/src/Google.Protobuf/JsonTokenizer.cs | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/csharp/src/Google.Protobuf/JsonTokenizer.cs b/csharp/src/Google.Protobuf/JsonTokenizer.cs index 09a6d43b..0e403f78 100644 --- a/csharp/src/Google.Protobuf/JsonTokenizer.cs +++ b/csharp/src/Google.Protobuf/JsonTokenizer.cs @@ -138,6 +138,34 @@ namespace Google.Protobuf protected abstract JsonToken NextImpl(); /// <summary> + /// Skips the value we're about to read. This must only be called immediately after reading a property name. + /// If the value is an object or an array, the complete object/array is skipped. + /// </summary> + internal void SkipValue() + { + // We'll assume that Next() makes sure that the end objects and end arrays are all valid. + // All we care about is the total nesting depth we need to close. + int depth = 0; + + // do/while rather than while loop so that we read at least one token. + do + { + var token = Next(); + switch (token.Type) + { + case JsonToken.TokenType.EndArray: + case JsonToken.TokenType.EndObject: + depth--; + break; + case JsonToken.TokenType.StartArray: + case JsonToken.TokenType.StartObject: + depth++; + break; + } + } while (depth != 0); + } + + /// <summary> /// Tokenizer which first exhausts a list of tokens, then consults another tokenizer. /// </summary> private class JsonReplayTokenizer : JsonTokenizer @@ -217,7 +245,7 @@ namespace Google.Protobuf state = State.ObjectAfterColon; break; case ',': - ValidateState(State.ObjectAfterProperty | State.ArrayAfterValue, "Invalid state to read a colon: "); + ValidateState(State.ObjectAfterProperty | State.ArrayAfterValue, "Invalid state to read a comma: "); state = state == State.ObjectAfterProperty ? State.ObjectAfterComma : State.ArrayAfterComma; break; case '"': |