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Added dictionary key support #87

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Added dictionary key support #87

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78e197e
Update UlidJsonConverter.cs
zorgoz Nov 21, 2024
6abbe54
Merge pull request #1 from zorgoz/zorgoz-property-name-patch
zorgoz Nov 21, 2024
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110 changes: 64 additions & 46 deletions src/Ulid/UlidJsonConverter.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -7,53 +7,71 @@

namespace Cysharp.Serialization.Json
{
public class UlidJsonConverter : JsonConverter<Ulid>
public class UlidJsonConverter: JsonConverter<Ulid>
{
/// <summary>
/// Read a Ulid value represented by a string from JSON.
/// </summary>
public override Ulid Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
{
try
{
if (reader.TokenType != JsonTokenType.String) throw new JsonException("Expected string");

if (reader.HasValueSequence)
{
// Parse using ValueSequence
var seq = reader.ValueSequence;
if (seq.Length != 26) throw new JsonException("Ulid invalid: length must be 26");
Span<byte> buf = stackalloc byte[26];
seq.CopyTo(buf);
Ulid.TryParse(buf, out var ulid);
return ulid;
}
else
{
// Parse usign ValueSpan
var buf = reader.ValueSpan;
if (buf.Length != 26) throw new JsonException("Ulid invalid: length must be 26");
Ulid.TryParse(buf, out var ulid);
return ulid;
}
}
catch (IndexOutOfRangeException e)
{
throw new JsonException("Ulid invalid: length must be 26", e);
}
catch (OverflowException e)
{
throw new JsonException("Ulid invalid: invalid character", e);
}
}

public override void Write(Utf8JsonWriter writer, Ulid value, JsonSerializerOptions options)
{
Span<byte> buf = stackalloc byte[26];
value.TryWriteStringify(buf);
writer.WriteStringValue(buf);
}
/// <summary>
/// Read a Ulid value represented by a string from JSON.
/// </summary>
public override Ulid Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
{
try
{
if (reader.TokenType != JsonTokenType.String && reader.TokenType != JsonTokenType.PropertyName) throw new JsonException("Expected string");

if (reader.HasValueSequence)
{
// Parse using ValueSequence
var seq = reader.ValueSequence;
if (seq.Length != 26) throw new JsonException("Ulid invalid: length must be 26");
Span<byte> buf = stackalloc byte[26];
seq.CopyTo(buf);
Ulid.TryParse(buf, out var ulid);
return ulid;
}
else
{
// Parse usign ValueSpan
var buf = reader.ValueSpan;
if (buf.Length != 26) throw new JsonException("Ulid invalid: length must be 26");
Ulid.TryParse(buf, out var ulid);
return ulid;
}
}
catch (IndexOutOfRangeException e)
{
throw new JsonException("Ulid invalid: length must be 26", e);
}
catch (OverflowException e)
{
throw new JsonException("Ulid invalid: invalid character", e);
}
}

public override void Write(Utf8JsonWriter writer, Ulid value, JsonSerializerOptions options)
{
Span<byte> buf = stackalloc byte[26];
value.TryWriteStringify(buf);
writer.WriteStringValue(buf);
}

public override void WriteAsPropertyName(
Utf8JsonWriter writer,
Ulid value,
JsonSerializerOptions options)
{
Span<byte> buf = stackalloc byte[26];
value.TryWriteStringify(buf);
writer.WritePropertyName(buf);
}

public override Ulid ReadAsPropertyName(
ref Utf8JsonReader reader,
Type typeToConvert,
JsonSerializerOptions options)
{
return Read(ref reader, typeToConvert, options);
}
}
}

#endif
#endif