public void Generate(JsonClass jsonClass, CodeBuilder codeBuilder)
{
if (jsonClass.ReadOnly)
{
return;
}
if (jsonClass.StructRef)
{
codeBuilder.AppendLine(2, $"public ReadOnlySpan<char> FromJson(ref {jsonClass.FullName} value, ReadOnlySpan<char> json)");
}
else
{
codeBuilder.AppendLine(2, $"public ReadOnlySpan<char> FromJson({jsonClass.FullName} value, ReadOnlySpan<char> json)");
}
codeBuilder.AppendLine(2, "{");
codeBuilder.AppendLine(3, "json = json.SkipWhitespaceTo('{');");
var properties = new List <JsonPropertyInstance>();
foreach (var property in jsonClass.Properties)
{
string wasSetVariable = null;
if (property.Optional)
{
var generator = _getGeneratorForType(property.Type);
wasSetVariable = generator.OnNewObject(codeBuilder, 3, propertyValue => $"value.{property.CodeName} = {propertyValue};");
}
properties.Add(new JsonPropertyInstance(property.Type, property.JsonName, property.CodeName, property.Optional, wasSetVariable));
}
codeBuilder.AppendLine(3, "while(true)");
codeBuilder.AppendLine(3, "{");
codeBuilder.AppendLine(4, "json = json.SkipWhitespace();");
string valueVariable = $"value{UniqueNumberGenerator.UniqueNumber}";
codeBuilder.AppendLine(4, $"char {valueVariable} = json[0];");
codeBuilder.AppendLine(4, $"if({valueVariable} == '\\\"')");
codeBuilder.AppendLine(4, "{");
codeBuilder.AppendLine(5, "json = json.Slice(1);");
codeBuilder.AppendLine(4, "}");
codeBuilder.AppendLine(4, $"else if({valueVariable} == '}}')");
codeBuilder.AppendLine(4, "{");
foreach (var property in properties)
{
if (property.Optional)
{
var generator = _getGeneratorForType(property.Type);
generator.OnObjectFinished(codeBuilder, 5, propertyValue => $"value.{property.CodeName} = {propertyValue};", property.WasSetVariable);
}
}
codeBuilder.AppendLine(5, "return json.Slice(1);");
codeBuilder.AppendLine(4, "}");
codeBuilder.AppendLine(4, "else");
codeBuilder.AppendLine(4, "{");
codeBuilder.AppendLine(5, $"throw new InvalidJsonException($\"Unexpected character! expected '}}}}' or '\\\"' but got '{{{valueVariable}}}'\", json);");
codeBuilder.AppendLine(4, "}");
codeBuilder.AppendLine(4, "var propertyName = json.ReadTo('\\\"');");
codeBuilder.AppendLine(4, "json = json.Slice(propertyName.Length + 1);");
codeBuilder.AppendLine(4, "json = json.SkipWhitespaceTo(':');");
GenerateProperties(properties, 4, codeBuilder);
codeBuilder.AppendLine(4, "json = json.SkipWhitespace();");
codeBuilder.AppendLine(4, "if(json[0] == ',')");
codeBuilder.AppendLine(4, "{");
codeBuilder.AppendLine(5, "json = json.Slice(1);");
codeBuilder.AppendLine(4, "}");
codeBuilder.AppendLine(3, "}");
codeBuilder.AppendLine(2, "}");
}
public void GenerateUtf8(JsonClass jsonClass, CodeBuilder codeBuilder)
{
if (jsonClass.ReadOnly)
{
return;
}
if (jsonClass.StructRef)
{
codeBuilder.AppendLine(2, $"public ReadOnlySpan<byte> FromJson(ref {jsonClass.FullName} value, ReadOnlySpan<byte> json)");
}
else
{
codeBuilder.AppendLine(2, $"public ReadOnlySpan<byte> FromJson({jsonClass.FullName} value, ReadOnlySpan<byte> json)");
}
codeBuilder.AppendLine(2, "{");
codeBuilder.AppendLine(3, "json = json.SkipToOpenCurlyBracket();");
var properties = new List <JsonPropertyInstance>();
foreach (var property in jsonClass.Properties)
{
string wasSetVariable = null;
if (property.Optional)
{
var generator = _getGeneratorForType(property.Type);
wasSetVariable = generator.OnNewObject(codeBuilder, 3, propertyValue => $"value.{property.CodeName} = {propertyValue};");
}
properties.Add(new JsonPropertyInstance(property.Type, property.JsonName, property.CodeName, property.Optional, wasSetVariable));
}
codeBuilder.AppendLine(3, "while(true)");
codeBuilder.AppendLine(3, "{");
codeBuilder.AppendLine(4, "int jsonIndex = 0;");
codeBuilder.AppendLine(4, "for (; jsonIndex < json.Length; jsonIndex++)");
codeBuilder.AppendLine(4, "{");
codeBuilder.AppendLine(4, " switch (json[jsonIndex])");
codeBuilder.AppendLine(4, " {");
codeBuilder.AppendLine(4, " case (byte)'\"':");
codeBuilder.AppendLine(4, " jsonIndex++;");
codeBuilder.AppendLine(4, " goto after;");
codeBuilder.AppendLine(4, " case (byte)'}':");
foreach (var property in properties)
{
if (property.Optional)
{
var generator = _getGeneratorForType(property.Type);
generator.OnObjectFinished(codeBuilder, 7, propertyValue => $"value.{property.CodeName} = {propertyValue};", property.WasSetVariable);
}
}
codeBuilder.AppendLine(4, " return json.Slice(jsonIndex + 1);");
codeBuilder.AppendLine(4, " default:");
codeBuilder.AppendLine(4, " continue;");
codeBuilder.AppendLine(4, " }");
codeBuilder.AppendLine(4, "}");
codeBuilder.AppendLine(4, "throw new InvalidJsonException($\"Unexpected character! expected '}}' or '\\\"' but got '{(char)json[jsonIndex]}'\", Encoding.UTF8.GetString(json));");
codeBuilder.AppendLine(4, "after:");
codeBuilder.AppendLine(4, "json = json.Slice(jsonIndex);");
codeBuilder.AppendLine(4, "var propertyName = json.ReadToQuote();");
codeBuilder.AppendLine(4, "json = json.Slice(propertyName.Length + 1);");
codeBuilder.AppendLine(4, "json = json.SkipToColon();");
GenerateProperties(properties, 4, codeBuilder, JsonFormat.UTF8);
codeBuilder.AppendLine(3, "}");
codeBuilder.AppendLine(2, "}");
}
public void Generate(JsonClass jsonClass, CodeBuilder classBuilder)
{
if (jsonClass.StructRef)
{
classBuilder.AppendLine(2, $"public ReadOnlySpan<char> ToJson(ref {jsonClass.FullName} value)");
}
else
{
classBuilder.AppendLine(2, $"public ReadOnlySpan<char> ToJson({jsonClass.FullName} value)");
}
classBuilder.AppendLine(2, "{");
classBuilder.AppendLine(0, BuilderText);
if (jsonClass.StructRef)
{
classBuilder.AppendLine(3, "ToJson(ref value, builder);");
}
else
{
classBuilder.AppendLine(3, "ToJson(value, builder);");
}
classBuilder.AppendLine(3, "return builder.AsSpan();");
classBuilder.AppendLine(2, "}");
if (jsonClass.StructRef)
{
classBuilder.AppendLine(2, $"public void ToJson(ref {jsonClass.FullName} value, JsonStringBuilder builder)");
}
else
{
classBuilder.AppendLine(2, $"public void ToJson({jsonClass.FullName} value, JsonStringBuilder builder)");
}
classBuilder.AppendLine(2, "{");
var appendBuilder = new StringBuilder();
appendBuilder.Append("{");
bool isFirst = true;
foreach (var property in jsonClass.Properties.OrderBy(p => p.JsonName))
{
int indent = 3;
if (jsonClass.IgnoreNull && property.Type.CanBeNull)
{
classBuilder.MakeAppend(indent, appendBuilder, JsonFormat.String);
classBuilder.AppendLine(indent, $"if(value.{property.CodeName} != null)");
classBuilder.AppendLine(indent, "{");
indent++;
}
if (!isFirst)
{
appendBuilder.Append(",");
}
appendBuilder.Append($"\\\"");
appendBuilder.AppendDoubleEscaped(property.JsonName);
appendBuilder.Append($"\\\":");
var generator = GetGeneratorForType(property.Type);
bool canBeNull = jsonClass.IgnoreNull ? false : property.Type.CanBeNull;
generator.GenerateToJson(classBuilder, indent, appendBuilder, property.Type, $"value.{property.CodeName}", canBeNull, JsonFormat.String);
if (jsonClass.IgnoreNull && property.Type.CanBeNull)
{
indent--;
classBuilder.AppendLine(indent, "}");
}
if (isFirst)
{
isFirst = false;
}
}
appendBuilder.Append("}");
classBuilder.MakeAppend(3, appendBuilder, JsonFormat.String);
classBuilder.AppendLine(2, "}");
}