/// <inheritdoc />
public override IEnumerable <IJsonNavigatorNode> GetArrayItems(IJsonNavigatorNode arrayNode)
{
ReadOnlyMemory <byte> buffer = JsonBinaryNavigator.GetNodeOfType(
JsonNodeType.Array,
arrayNode);
byte typeMarker = buffer.Span[0];
int firstArrayItemOffset = JsonBinaryEncoding.GetFirstValueOffset(typeMarker);
int arrayLength = JsonBinaryEncoding.GetValueLength(buffer.Span);
// Scope to just the array
buffer = buffer.Slice(0, (int)arrayLength);
// Seek to the first array item
buffer = buffer.Slice(firstArrayItemOffset);
while (buffer.Length != 0)
{
int arrayItemLength = JsonBinaryEncoding.GetValueLength(buffer.Span);
if (arrayItemLength > buffer.Length)
{
// Array Item got cut off.
throw new JsonInvalidTokenException();
}
// Create a buffer for that array item
IJsonNavigatorNode arrayItem = new BinaryNavigatorNode(
buffer.Slice(0, arrayItemLength),
NodeTypes.GetNodeType(buffer.Span[0]));
yield return(arrayItem);
// Slice off the array item
buffer = buffer.Slice(arrayItemLength);
}
}
/// <summary>
/// Gets an IEnumerable of <see cref="IJsonNavigatorNode"/>s for an arrayNode.
/// </summary>
/// <param name="arrayNavigatorNode">The <see cref="IJsonNavigatorNode"/> of the array to get the items from</param>
/// <returns>The IEnumerable of <see cref="IJsonNavigatorNode"/>s for an arrayNode.</returns>
public override IEnumerable <IJsonNavigatorNode> GetArrayItems(IJsonNavigatorNode arrayNavigatorNode)
{
if (arrayNavigatorNode == null)
{
throw new ArgumentNullException(nameof(arrayNavigatorNode));
}
if (!(((arrayNavigatorNode as BinaryNode)?.JsonNodeType ?? JsonNodeType.Unknown) == JsonNodeType.Array))
{
throw new ArgumentException($"{nameof(arrayNavigatorNode)} must be a binary array node.");
}
int arrayOffset = ((BinaryNode)arrayNavigatorNode).Offset;
byte typeMarker = this.buffer[arrayOffset];
long arrayLength = JsonBinaryEncoding.GetValueLength(this.buffer, arrayOffset);
long firstValueOffset = arrayOffset + JsonBinaryEncoding.GetFirstValueOffset(typeMarker);
long bytesToProcess = (arrayOffset + arrayLength) - firstValueOffset;
for (int bytesProcessed = 0; bytesProcessed < bytesToProcess; bytesProcessed += (int)JsonBinaryEncoding.GetValueLength(this.buffer, firstValueOffset + bytesProcessed))
{
yield return(this.CreateBinaryNode((int)(firstValueOffset + bytesProcessed)));
}
}
public static bool TryGetFloat64Value(
ReadOnlySpan <byte> float64Token,
out double float64Value) => JsonBinaryEncoding.TryGetFixedWidthValue <double>(
float64Token,
JsonBinaryEncoding.TypeMarker.Float64,
out float64Value);
public static bool TryGetFloat32Value(
ReadOnlySpan <byte> float32Token,
out float float32Value) => JsonBinaryEncoding.TryGetFixedWidthValue <float>(
float32Token,
JsonBinaryEncoding.TypeMarker.Float32,
out float32Value);
public static bool TryGetUInt32Value(
ReadOnlySpan <byte> uInt32Token,
out uint uInt32Value) => JsonBinaryEncoding.TryGetFixedWidthValue <uint>(
uInt32Token,
JsonBinaryEncoding.TypeMarker.UInt32,
out uInt32Value);
public static bool TryGetInt64Value(
ReadOnlySpan <byte> int64Token,
out long int64Value) => JsonBinaryEncoding.TryGetFixedWidthValue <long>(
int64Token,
JsonBinaryEncoding.TypeMarker.Int64,
out int64Value);
private void ForceRewriteRawJsonValue(
ReadOnlyMemory <byte> rawJsonValue,
bool isFieldName,
IReadOnlyJsonStringDictionary jsonStringDictionary)
{
byte typeMarker = rawJsonValue.Span[0];
if (!JsonBinaryEncoding.TypeMarker.IsSystemString(typeMarker) &&
!JsonBinaryEncoding.TypeMarker.IsEmptyArray(typeMarker) &&
!JsonBinaryEncoding.TypeMarker.IsEmptyObject(typeMarker))
{
JsonNodeType nodeType = JsonBinaryEncoding.NodeTypes.GetNodeType(typeMarker);
switch (nodeType)
{
case JsonNodeType.String:
{
if (!JsonBinaryEncoding.TryGetBufferedStringValue(
Utf8Memory.UnsafeCreateNoValidation(rawJsonValue),
jsonStringDictionary,
out Utf8Memory bufferedStringValue))
{
throw new InvalidOperationException("Excepted to get the buffered string value.");
}
if (isFieldName)
{
this.WriteFieldName(bufferedStringValue.Span);
}
else
{
this.WriteStringValue(bufferedStringValue.Span);
}
return;
}
case JsonNodeType.Array:
{
this.WriteArrayStart();
foreach (ReadOnlyMemory <byte> arrayItem in JsonBinaryEncoding.Enumerator.GetArrayItems(rawJsonValue))
{
this.ForceRewriteRawJsonValue(arrayItem, isFieldName, jsonStringDictionary);
}
this.WriteArrayEnd();
return;
}
case JsonNodeType.Object:
{
this.WriteObjectStart();
foreach (JsonBinaryEncoding.Enumerator.ObjectProperty property in JsonBinaryEncoding.Enumerator.GetObjectProperties(rawJsonValue))
{
this.ForceRewriteRawJsonValue(property.Name, isFieldName: true, jsonStringDictionary);
this.ForceRewriteRawJsonValue(property.Value, isFieldName: false, jsonStringDictionary);
}
this.WriteObjectEnd();
return;
}
}
}
// Other that whether or not this is a field name, the type of the value does not matter here
this.JsonObjectState.RegisterToken(isFieldName ? JsonTokenType.FieldName : JsonTokenType.String);
this.binaryWriter.Write(rawJsonValue.Span);
if (!isFieldName)
{
this.bufferedContexts.Peek().Count++;
}
}
/// <inheritdoc />
public override bool Read()
{
JsonTokenType jsonTokenType;
int nextTokenOffset;
// First check if we just finished an array or object context
if (!this.arrayAndObjectEndStack.Empty() && (this.arrayAndObjectEndStack.Peek() == this.jsonBinaryBuffer.Position))
{
if (this.JsonObjectState.InArrayContext)
{
jsonTokenType = JsonTokenType.EndArray;
}
else if (this.JsonObjectState.InObjectContext)
{
jsonTokenType = JsonTokenType.EndObject;
}
else
{
throw new JsonInvalidTokenException();
}
nextTokenOffset = 0;
this.arrayAndObjectEndStack.Pop();
}
else
{
// We are not at the end of a context.
if (this.jsonBinaryBuffer.IsEof)
{
// Need to check if we are still inside of an object or array
if (this.JsonObjectState.CurrentDepth != 0)
{
if (this.JsonObjectState.InObjectContext)
{
throw new JsonMissingEndObjectException();
}
else if (this.JsonObjectState.InArrayContext)
{
throw new JsonMissingEndArrayException();
}
else
{
throw new InvalidOperationException("Expected to be in either array or object context");
}
}
return false;
}
if ((this.JsonObjectState.CurrentDepth == 0) && (this.CurrentTokenType != JsonTokenType.NotStarted))
{
// There are trailing characters outside of the outter most object or array
throw new JsonUnexpectedTokenException();
}
byte firstByte = this.jsonBinaryBuffer.Peek();
jsonTokenType = JsonBinaryReader.GetJsonTokenType(firstByte);
if ((jsonTokenType == JsonTokenType.String) && this.JsonObjectState.IsPropertyExpected)
{
jsonTokenType = JsonTokenType.FieldName;
}
// If this is begin array/object token then we need to identify where array/object end token is.
// Also the next token offset is just the array type marker + length prefix + count prefix
if ((jsonTokenType == JsonTokenType.BeginArray) || (jsonTokenType == JsonTokenType.BeginObject))
{
if (!JsonBinaryEncoding.TryGetValueLength(
this.jsonBinaryBuffer.GetBufferedRawJsonToken().Span,
out int arrayOrObjectLength))
{
throw new JsonUnexpectedTokenException();
}
this.arrayAndObjectEndStack.Push(this.jsonBinaryBuffer.Position + arrayOrObjectLength);
nextTokenOffset = JsonBinaryReader.GetArrayOrObjectPrefixLength(firstByte);
}
else
{
if (!JsonBinaryEncoding.TryGetValueLength(
this.jsonBinaryBuffer.GetBufferedRawJsonToken().Span,
out nextTokenOffset))
{
throw new JsonUnexpectedTokenException();
}
}
}
this.JsonObjectState.RegisterToken(jsonTokenType);
this.currentTokenPosition = this.jsonBinaryBuffer.Position;
this.jsonBinaryBuffer.SkipBytes(nextTokenOffset);
return true;
}
private BinaryNode CreateBinaryNode(int offset)
{
return(new BinaryNode(offset, JsonBinaryEncoding.GetNodeType(this.buffer[offset])));
}
/// <summary>
/// Gets the number of properties in an object node.
/// </summary>
/// <param name="objectNavigatorNode">The <see cref="IJsonNavigatorNode"/> of node to get the property count from.</param>
/// <returns>The number of properties in an object node.</returns>
public override int GetObjectPropertyCount(IJsonNavigatorNode objectNavigatorNode)
{
if (objectNavigatorNode == null)
{
throw new ArgumentNullException(nameof(objectNavigatorNode));
}
if (!(((objectNavigatorNode as BinaryNode)?.JsonNodeType ?? JsonNodeType.Unknown) == JsonNodeType.Object))
{
throw new ArgumentException($"{nameof(objectNavigatorNode)} must be a binary object node.");
}
int objectOffset = ((BinaryNode)objectNavigatorNode).Offset;
byte typeMarker = this.buffer[objectOffset];
int firstObjectPropertyOffset = objectOffset + JsonBinaryEncoding.GetFirstValueOffset(typeMarker);
long count;
switch (typeMarker)
{
// Empty and Single Object
case JsonBinaryEncoding.TypeMarker.EmptyObject:
count = 0;
break;
case JsonBinaryEncoding.TypeMarker.SinglePropertyObject:
// This number gets divided by 2 later.
count = 2;
break;
// Object with length and count prefix
case JsonBinaryEncoding.TypeMarker.Object1ByteLengthAndCount:
count = this.buffer[objectOffset + JsonBinaryEncoding.TypeMarkerLength + JsonBinaryEncoding.OneByteLength];
break;
case JsonBinaryEncoding.TypeMarker.Object2ByteLengthAndCount:
count = BitConverter.ToUInt16(this.buffer, objectOffset + JsonBinaryEncoding.TypeMarkerLength + JsonBinaryEncoding.TwoByteLength);
break;
case JsonBinaryEncoding.TypeMarker.Object4ByteLengthAndCount:
count = BitConverter.ToUInt32(this.buffer, objectOffset + JsonBinaryEncoding.TypeMarkerLength + JsonBinaryEncoding.FourByteLength);
break;
// Object with length prefix
case JsonBinaryEncoding.TypeMarker.Object1ByteLength:
count = this.GetValueCount(firstObjectPropertyOffset, this.buffer[objectOffset + JsonBinaryEncoding.TypeMarkerLength]);
break;
case JsonBinaryEncoding.TypeMarker.Object2ByteLength:
count = this.GetValueCount(firstObjectPropertyOffset, BitConverter.ToUInt16(this.buffer, objectOffset + JsonBinaryEncoding.TypeMarkerLength));
break;
case JsonBinaryEncoding.TypeMarker.Object4ByteLength:
count = this.GetValueCount(firstObjectPropertyOffset, BitConverter.ToUInt32(this.buffer, objectOffset + JsonBinaryEncoding.TypeMarkerLength));
break;
default:
throw new InvalidOperationException($"Unexpected object type marker: {typeMarker}");
}
// Divide by 2 since the count includes fieldname and value as seperate entities
count = count / 2;
if (count > int.MaxValue)
{
throw new InvalidOperationException("count can not be more than int.MaxValue");
}
return((int)count);
}
/// <summary>
/// Gets the number of elements in an array node.
/// </summary>
/// <param name="arrayNavigatorNode">The <see cref="IJsonNavigatorNode"/> of the (array) node to get the count of.</param>
/// <returns>The number of elements in the array node.</returns>
public override int GetArrayItemCount(IJsonNavigatorNode arrayNavigatorNode)
{
if (arrayNavigatorNode == null)
{
throw new ArgumentNullException(nameof(arrayNavigatorNode));
}
if (!(((arrayNavigatorNode as BinaryNode)?.JsonNodeType ?? JsonNodeType.Unknown) == JsonNodeType.Array))
{
throw new ArgumentException($"{nameof(arrayNavigatorNode)} must be a binary array node.");
}
int offset = ((BinaryNode)arrayNavigatorNode).Offset;
byte typeMarker = this.buffer[offset];
int firstValueOffset = offset + JsonBinaryEncoding.GetFirstValueOffset(typeMarker);
long count;
switch (typeMarker)
{
// Empty and Single Array
case JsonBinaryEncoding.TypeMarker.EmptyArray:
count = 0;
break;
case JsonBinaryEncoding.TypeMarker.SingleItemArray:
count = 1;
break;
// Arrays with length and count prefix
case JsonBinaryEncoding.TypeMarker.Array1ByteLengthAndCount:
count = this.buffer[offset + JsonBinaryEncoding.TypeMarkerLength + JsonBinaryEncoding.OneByteLength];
break;
case JsonBinaryEncoding.TypeMarker.Array2ByteLengthAndCount:
count = BitConverter.ToUInt16(this.buffer, offset + JsonBinaryEncoding.TypeMarkerLength + JsonBinaryEncoding.TwoByteLength);
break;
case JsonBinaryEncoding.TypeMarker.Array4ByteLengthAndCount:
count = BitConverter.ToUInt32(this.buffer, offset + JsonBinaryEncoding.TypeMarkerLength + JsonBinaryEncoding.FourByteLength);
break;
// Arrays with length prefix
case JsonBinaryEncoding.TypeMarker.Array1ByteLength:
count = this.GetValueCount(firstValueOffset, this.buffer[offset + JsonBinaryEncoding.TypeMarkerLength]);
break;
case JsonBinaryEncoding.TypeMarker.Array2ByteLength:
count = this.GetValueCount(firstValueOffset, BitConverter.ToUInt16(this.buffer, offset + JsonBinaryEncoding.TypeMarkerLength));
break;
case JsonBinaryEncoding.TypeMarker.Array4ByteLength:
count = this.GetValueCount(firstValueOffset, BitConverter.ToUInt32(this.buffer, offset + JsonBinaryEncoding.TypeMarkerLength));
break;
default:
throw new InvalidOperationException($"Unexpected array type marker: {typeMarker}");
}
if (count > int.MaxValue)
{
throw new InvalidOperationException("count can not be more than int.MaxValue");
}
return((int)count);
}
private void WriteToInternal(BinaryNavigatorNode binaryNavigatorNode, IJsonWriter jsonWriter, bool sameEncoding)
{
ReadOnlyMemory <byte> buffer = binaryNavigatorNode.Buffer;
JsonNodeType nodeType = binaryNavigatorNode.JsonNodeType;
if (sameEncoding && this.TryGetBufferedRawJsonInternal(binaryNavigatorNode, out ReadOnlyMemory <byte> bufferedRawJson))
{
// Token type doesn't make any difference other than whether it's a value or field name
JsonTokenType tokenType = nodeType == JsonNodeType.FieldName ? JsonTokenType.FieldName : JsonTokenType.String;
jsonWriter.WriteRawJsonToken(tokenType, bufferedRawJson.Span);
return;
}
switch (nodeType)
{
case JsonNodeType.Null:
jsonWriter.WriteNullValue();
break;
case JsonNodeType.False:
jsonWriter.WriteBoolValue(false);
break;
case JsonNodeType.True:
jsonWriter.WriteBoolValue(true);
break;
case JsonNodeType.Number64:
{
Number64 value = JsonBinaryEncoding.GetNumberValue(buffer.Span);
jsonWriter.WriteNumber64Value(value);
}
break;
case JsonNodeType.String:
case JsonNodeType.FieldName:
bool fieldName = binaryNavigatorNode.JsonNodeType == JsonNodeType.FieldName;
Utf8Memory utf8Buffer = Utf8Memory.UnsafeCreateNoValidation(buffer);
if (JsonBinaryEncoding.TryGetBufferedStringValue(
utf8Buffer,
this.jsonStringDictionary,
out Utf8Memory bufferedStringValue))
{
if (fieldName)
{
jsonWriter.WriteFieldName(bufferedStringValue.Span);
}
else
{
jsonWriter.WriteStringValue(bufferedStringValue.Span);
}
}
else
{
string value = JsonBinaryEncoding.GetStringValue(
utf8Buffer,
this.jsonStringDictionary);
if (fieldName)
{
jsonWriter.WriteFieldName(value);
}
else
{
jsonWriter.WriteStringValue(value);
}
}
break;
case JsonNodeType.Array:
{
jsonWriter.WriteArrayStart();
foreach (BinaryNavigatorNode arrayItem in this.GetArrayItemsInternal(buffer))
{
this.WriteToInternal(arrayItem, jsonWriter, sameEncoding);
}
jsonWriter.WriteArrayEnd();
}
break;
case JsonNodeType.Object:
{
jsonWriter.WriteObjectStart();
foreach (ObjectPropertyInternal objectProperty in this.GetObjectPropertiesInternal(buffer))
{
this.WriteToInternal(objectProperty.NameNode, jsonWriter, sameEncoding);
this.WriteToInternal(objectProperty.ValueNode, jsonWriter, sameEncoding);
}
jsonWriter.WriteObjectEnd();
}
break;
case JsonNodeType.Int8:
{
sbyte value = JsonBinaryEncoding.GetInt8Value(buffer.Span);
jsonWriter.WriteInt8Value(value);
}
break;
case JsonNodeType.Int16:
{
short value = JsonBinaryEncoding.GetInt16Value(buffer.Span);
jsonWriter.WriteInt16Value(value);
}
break;
case JsonNodeType.Int32:
{
int value = JsonBinaryEncoding.GetInt32Value(buffer.Span);
jsonWriter.WriteInt32Value(value);
}
break;
case JsonNodeType.Int64:
{
long value = JsonBinaryEncoding.GetInt64Value(buffer.Span);
jsonWriter.WriteInt64Value(value);
}
break;
case JsonNodeType.UInt32:
{
uint value = JsonBinaryEncoding.GetUInt32Value(buffer.Span);
jsonWriter.WriteUInt32Value(value);
}
break;
case JsonNodeType.Float32:
{
float value = JsonBinaryEncoding.GetFloat32Value(buffer.Span);
jsonWriter.WriteFloat32Value(value);
}
break;
case JsonNodeType.Float64:
{
double value = JsonBinaryEncoding.GetFloat64Value(buffer.Span);
jsonWriter.WriteFloat64Value(value);
}
break;
case JsonNodeType.Binary:
{
ReadOnlyMemory <byte> value = JsonBinaryEncoding.GetBinaryValue(buffer);
jsonWriter.WriteBinaryValue(value.Span);
}
break;
case JsonNodeType.Guid:
{
Guid value = JsonBinaryEncoding.GetGuidValue(buffer.Span);
jsonWriter.WriteGuidValue(value);
}
break;
default:
throw new ArgumentOutOfRangeException($"Unknown {nameof(JsonNodeType)}: {nodeType}.");
}
}
private static bool TryGetBufferedLengthPrefixedString(
Utf8Memory stringToken,
out Utf8Memory value)
{
ReadOnlySpan <byte> stringTokenSpan = stringToken.Memory.Span;
byte typeMarker = stringTokenSpan[0];
stringTokenSpan = stringTokenSpan.Slice(start: 1);
int start;
long length;
if (JsonBinaryEncoding.TypeMarker.IsEncodedLengthString(typeMarker))
{
start = JsonBinaryEncoding.TypeMarkerLength;
length = JsonBinaryEncoding.GetStringLengths(typeMarker);
}
else
{
switch (typeMarker)
{
case JsonBinaryEncoding.TypeMarker.String1ByteLength:
if (stringTokenSpan.Length < JsonBinaryEncoding.OneByteLength)
{
value = default;
return(false);
}
start = JsonBinaryEncoding.TypeMarkerLength + JsonBinaryEncoding.OneByteLength;
length = stringTokenSpan[0];
break;
case JsonBinaryEncoding.TypeMarker.String2ByteLength:
if (stringTokenSpan.Length < JsonBinaryEncoding.TwoByteLength)
{
value = default;
return(false);
}
start = JsonBinaryEncoding.TypeMarkerLength + JsonBinaryEncoding.TwoByteLength;
length = MemoryMarshal.Read <ushort>(stringTokenSpan);
break;
case JsonBinaryEncoding.TypeMarker.String4ByteLength:
if (stringTokenSpan.Length < JsonBinaryEncoding.FourByteLength)
{
value = default;
return(false);
}
start = JsonBinaryEncoding.TypeMarkerLength + JsonBinaryEncoding.FourByteLength;
length = MemoryMarshal.Read <uint>(stringTokenSpan);
break;
default:
value = default;
return(false);
}
if ((start + length) > stringToken.Length)
{
value = default;
return(false);
}
}
value = stringToken.Slice(start: start, length: (int)length);
return(true);
}
/// <inheritdoc />
public override bool Read()
{
// Check if we just finished an array or object context
if (!this.arrayAndObjectEndStack.Empty() && this.arrayAndObjectEndStack.Peek() == this.jsonBinaryBuffer.Position)
{
if (this.JsonObjectState.InArrayContext)
{
this.JsonObjectState.RegisterEndArray();
}
else if (this.JsonObjectState.InObjectContext)
{
this.JsonObjectState.RegisterEndObject();
}
else
{
throw new JsonInvalidTokenException();
}
this.currentTokenPosition = this.jsonBinaryBuffer.Position;
this.arrayAndObjectEndStack.Pop();
}
else if (this.jsonBinaryBuffer.IsEof)
{
// Need to check if we are still inside of an object or array
if (this.JsonObjectState.CurrentDepth != 0)
{
if (this.JsonObjectState.InObjectContext)
{
throw new JsonMissingEndObjectException();
}
if (this.JsonObjectState.InArrayContext)
{
throw new JsonMissingEndArrayException();
}
throw new InvalidOperationException("Expected to be in either array or object context");
}
return(false);
}
else if (this.JsonObjectState.CurrentDepth == 0 && this.CurrentTokenType != JsonTokenType.NotStarted)
{
// There are trailing characters outside of the outter most object or array
throw new JsonUnexpectedTokenException();
}
else
{
ReadOnlySpan <byte> readOnlySpan = this.jsonBinaryBuffer.GetBufferedRawJsonToken().Span;
int nextTokenOffset = JsonBinaryEncoding.GetValueLength(readOnlySpan);
byte typeMarker = readOnlySpan[0];
JsonTokenType jsonTokenType = JsonBinaryReader.GetJsonTokenType(typeMarker);
switch (jsonTokenType)
{
case JsonTokenType.String when this.JsonObjectState.IsPropertyExpected:
jsonTokenType = JsonTokenType.FieldName;
break;
// If this is begin array/object token then we need to identify where array/object end token is.
// Also the next token offset is just the array type marker + length prefix + count prefix
case JsonTokenType.BeginArray:
case JsonTokenType.BeginObject:
this.arrayAndObjectEndStack.Push(this.jsonBinaryBuffer.Position + nextTokenOffset);
nextTokenOffset = JsonBinaryReader.GetArrayOrObjectPrefixLength(typeMarker);
break;
}
this.JsonObjectState.RegisterToken(jsonTokenType);
this.currentTokenPosition = this.jsonBinaryBuffer.Position;
this.jsonBinaryBuffer.SkipBytes(nextTokenOffset);
}
return(true);
}
public static bool TryGetInt8Value(
ReadOnlySpan <byte> int8Token,
out sbyte int8Value) => JsonBinaryEncoding.TryGetFixedWidthValue <sbyte>(
int8Token,
JsonBinaryEncoding.TypeMarker.Int8,
out int8Value);
private void WriteFieldNameOrString(bool isFieldName, ReadOnlySpan <byte> utf8String)
{
// String dictionary encoding is currently performed only for field names.
// This would be changed later, so that the writer can control which strings need to be encoded.
this.JsonObjectState.RegisterToken(isFieldName ? JsonTokenType.FieldName : JsonTokenType.String);
if (JsonBinaryEncoding.TryGetEncodedStringTypeMarker(
utf8String,
this.JsonObjectState.CurrentTokenType == JsonTokenType.FieldName ? this.jsonStringDictionary : null,
out JsonBinaryEncoding.MultiByteTypeMarker multiByteTypeMarker))
{
switch (multiByteTypeMarker.Length)
{
case 1:
this.binaryWriter.Write(multiByteTypeMarker.One);
break;
case 2:
this.binaryWriter.Write(multiByteTypeMarker.One);
this.binaryWriter.Write(multiByteTypeMarker.Two);
break;
default:
throw new ArgumentOutOfRangeException($"Unable to serialize a {nameof(JsonBinaryEncoding.MultiByteTypeMarker)} of length: {multiByteTypeMarker.Length}");
}
}
else
{
// See if the string length can be encoded into a single type marker
byte typeMarker = JsonBinaryEncoding.TypeMarker.GetEncodedStringLengthTypeMarker(utf8String.Length);
if (JsonBinaryEncoding.TypeMarker.IsValid(typeMarker))
{
this.binaryWriter.Write(typeMarker);
}
else
{
// Just write the type marker and the corresponding length
if (utf8String.Length < byte.MaxValue)
{
this.binaryWriter.Write(JsonBinaryEncoding.TypeMarker.String1ByteLength);
this.binaryWriter.Write((byte)utf8String.Length);
}
else if (utf8String.Length < ushort.MaxValue)
{
this.binaryWriter.Write(JsonBinaryEncoding.TypeMarker.String2ByteLength);
this.binaryWriter.Write((ushort)utf8String.Length);
}
else
{
// (utf8String.Length < uint.MaxValue)
this.binaryWriter.Write(JsonBinaryEncoding.TypeMarker.String4ByteLength);
this.binaryWriter.Write((uint)utf8String.Length);
}
}
// Finally write the string itself.
this.binaryWriter.Write(utf8String);
}
if (!isFieldName)
{
// If we just wrote a string then increment the count (we don't increment for field names, since we need to wait for the corresponding property value).
this.bufferedContexts.Peek().Count++;
}
}
public static bool TryGetInt16Value(
ReadOnlySpan <byte> int16Token,
out short int16Value) => JsonBinaryEncoding.TryGetFixedWidthValue <short>(
int16Token,
JsonBinaryEncoding.TypeMarker.Int16,
out int16Value);
public static bool TryGetValueLength(ReadOnlySpan <byte> buffer, out int length)
{
// Too lazy to convert this right now.
length = (int)JsonBinaryEncoding.GetValueLength(buffer);
return(true);
}
public static bool TryGetInt32Value(
ReadOnlySpan <byte> int32Token,
out int int32Value) => JsonBinaryEncoding.TryGetFixedWidthValue <int>(
int32Token,
JsonBinaryEncoding.TypeMarker.Int32,
out int32Value);
private void WriteToInternal(BinaryNavigatorNode binaryNavigatorNode, IJsonWriter jsonWriter)
{
ReadOnlyMemory <byte> buffer = binaryNavigatorNode.Buffer;
JsonNodeType nodeType = binaryNavigatorNode.JsonNodeType;
switch (nodeType)
{
case JsonNodeType.Null:
jsonWriter.WriteNullValue();
break;
case JsonNodeType.False:
jsonWriter.WriteBoolValue(false);
break;
case JsonNodeType.True:
jsonWriter.WriteBoolValue(true);
break;
case JsonNodeType.Number64:
{
Number64 value = JsonBinaryEncoding.GetNumberValue(buffer.Span);
jsonWriter.WriteNumber64Value(value);
}
break;
case JsonNodeType.String:
case JsonNodeType.FieldName:
bool fieldName = binaryNavigatorNode.JsonNodeType == JsonNodeType.FieldName;
if (JsonBinaryEncoding.TryGetBufferedStringValue(
this.rootBuffer,
buffer,
out Utf8Memory bufferedStringValue))
{
if (fieldName)
{
jsonWriter.WriteFieldName(bufferedStringValue.Span);
}
else
{
jsonWriter.WriteStringValue(bufferedStringValue.Span);
}
}
else
{
string value = JsonBinaryEncoding.GetStringValue(
this.rootBuffer,
buffer);
if (fieldName)
{
jsonWriter.WriteFieldName(value);
}
else
{
jsonWriter.WriteStringValue(value);
}
}
break;
case JsonNodeType.Array:
{
jsonWriter.WriteArrayStart();
foreach (BinaryNavigatorNode arrayItem in this.GetArrayItemsInternal(buffer))
{
this.WriteToInternal(arrayItem, jsonWriter);
}
jsonWriter.WriteArrayEnd();
}
break;
case JsonNodeType.Object:
{
jsonWriter.WriteObjectStart();
foreach (ObjectPropertyInternal objectProperty in this.GetObjectPropertiesInternal(buffer))
{
this.WriteToInternal(objectProperty.NameNode, jsonWriter);
this.WriteToInternal(objectProperty.ValueNode, jsonWriter);
}
jsonWriter.WriteObjectEnd();
}
break;
case JsonNodeType.Int8:
{
sbyte value = JsonBinaryEncoding.GetInt8Value(buffer.Span);
jsonWriter.WriteInt8Value(value);
}
break;
case JsonNodeType.Int16:
{
short value = JsonBinaryEncoding.GetInt16Value(buffer.Span);
jsonWriter.WriteInt16Value(value);
}
break;
case JsonNodeType.Int32:
{
int value = JsonBinaryEncoding.GetInt32Value(buffer.Span);
jsonWriter.WriteInt32Value(value);
}
break;
case JsonNodeType.Int64:
{
long value = JsonBinaryEncoding.GetInt64Value(buffer.Span);
jsonWriter.WriteInt64Value(value);
}
break;
case JsonNodeType.UInt32:
{
uint value = JsonBinaryEncoding.GetUInt32Value(buffer.Span);
jsonWriter.WriteUInt32Value(value);
}
break;
case JsonNodeType.Float32:
{
float value = JsonBinaryEncoding.GetFloat32Value(buffer.Span);
jsonWriter.WriteFloat32Value(value);
}
break;
case JsonNodeType.Float64:
{
double value = JsonBinaryEncoding.GetFloat64Value(buffer.Span);
jsonWriter.WriteFloat64Value(value);
}
break;
case JsonNodeType.Binary:
{
ReadOnlyMemory <byte> value = JsonBinaryEncoding.GetBinaryValue(buffer);
jsonWriter.WriteBinaryValue(value.Span);
}
break;
case JsonNodeType.Guid:
{
Guid value = JsonBinaryEncoding.GetGuidValue(buffer.Span);
jsonWriter.WriteGuidValue(value);
}
break;
default:
throw new ArgumentOutOfRangeException($"Unknown {nameof(JsonNodeType)}: {nodeType}.");
}
}
public static bool TryGetGuidValue(
ReadOnlySpan <byte> guidToken,
out Guid guidValue) => JsonBinaryEncoding.TryGetFixedWidthValue <Guid>(
guidToken,
JsonBinaryEncoding.TypeMarker.Guid,
out guidValue);
