// Create a parameter that is ignored at run-time. It uses the same type (typeof(sbyte)) to help
// prevent issues with unsupported types and helps ensure we don't accidently (de)serialize it.
public static JsonParameterInfo CreateIgnoredParameterPlaceholder(JsonParameterInfoValues parameterInfo, JsonPropertyInfo matchingProperty)
{
JsonParameterInfo jsonParameterInfo = matchingProperty.ConverterBase.CreateJsonParameterInfo();
jsonParameterInfo.ClrInfo = parameterInfo;
jsonParameterInfo.RuntimePropertyType = matchingProperty.RuntimePropertyType !;
jsonParameterInfo.NameAsUtf8Bytes = matchingProperty.NameAsUtf8Bytes !;
jsonParameterInfo.InitializeDefaultValue(matchingProperty);
return(jsonParameterInfo);
}
public virtual void Initialize(JsonParameterInfoValues parameterInfo, JsonPropertyInfo matchingProperty, JsonSerializerOptions options)
{
ClrInfo = parameterInfo;
Options = options;
ShouldDeserialize = true;
PropertyType = matchingProperty.PropertyType;
NameAsUtf8Bytes = matchingProperty.NameAsUtf8Bytes !;
ConverterBase = matchingProperty.ConverterBase;
IgnoreDefaultValuesOnRead = matchingProperty.IgnoreDefaultValuesOnRead;
NumberHandling = matchingProperty.NumberHandling;
MatchingPropertyCanBeNull = matchingProperty.PropertyTypeCanBeNull;
}
private static JsonParameterInfo CreateConstructorParameter(
JsonParameterInfoValues parameterInfo,
JsonPropertyInfo jsonPropertyInfo,
bool sourceGenMode,
JsonSerializerOptions options)
{
if (jsonPropertyInfo.IsIgnored)
{
return(JsonParameterInfo.CreateIgnoredParameterPlaceholder(parameterInfo, jsonPropertyInfo, sourceGenMode));
}
JsonConverter converter = jsonPropertyInfo.ConverterBase;
JsonParameterInfo jsonParameterInfo = converter.CreateJsonParameterInfo();
jsonParameterInfo.Initialize(parameterInfo, jsonPropertyInfo, options);
return(jsonParameterInfo);
}
/// <summary>
/// Create a parameter that is ignored at run time. It uses the same type (typeof(sbyte)) to help
/// prevent issues with unsupported types and helps ensure we don't accidently (de)serialize it.
/// </summary>
public static JsonParameterInfo CreateIgnoredParameterPlaceholder(
JsonParameterInfoValues parameterInfo,
JsonPropertyInfo matchingProperty,
bool sourceGenMode)
{
JsonParameterInfo jsonParameterInfo = new JsonParameterInfo <sbyte>();
jsonParameterInfo.ClrInfo = parameterInfo;
jsonParameterInfo.PropertyType = matchingProperty.PropertyType;
jsonParameterInfo.NameAsUtf8Bytes = matchingProperty.NameAsUtf8Bytes !;
// TODO: https://github.com/dotnet/runtime/issues/60082.
// Default value initialization for params mapping to ignored properties doesn't
// account for the default value of optional parameters. This should be fixed.
if (sourceGenMode)
{
// The <T> value in the matching JsonPropertyInfo<T> instance matches the parameter type.
jsonParameterInfo.DefaultValue = matchingProperty.DefaultValue;
}
else
{
// The <T> value in the created JsonPropertyInfo<T> instance (sbyte)
// doesn't match the parameter type, use reflection to get the default value.
Type parameterType = parameterInfo.ParameterType;
DefaultValueHolder holder;
if (matchingProperty.Options.TryGetJsonTypeInfo(parameterType, out JsonTypeInfo? typeInfo))
{
holder = typeInfo.DefaultValueHolder;
}
else
{
holder = DefaultValueHolder.CreateHolder(parameterInfo.ParameterType);
}
jsonParameterInfo.DefaultValue = holder.DefaultValue;
}
return(jsonParameterInfo);
}
private static JsonParameterInfoValues[] GetParameterInfoArray(ParameterInfo[] parameters)
{
int parameterCount = parameters.Length;
JsonParameterInfoValues[] jsonParameters = new JsonParameterInfoValues[parameterCount];
for (int i = 0; i < parameterCount; i++)
{
ParameterInfo reflectionInfo = parameters[i];
JsonParameterInfoValues jsonInfo = new()
{
Name = reflectionInfo.Name !,
ParameterType = reflectionInfo.ParameterType,
Position = reflectionInfo.Position,
HasDefaultValue = reflectionInfo.HasDefaultValue,
DefaultValue = reflectionInfo.GetDefaultValue()
};
jsonParameters[i] = jsonInfo;
}
return(jsonParameters);
}
public override void Initialize(JsonParameterInfoValues parameterInfo, JsonPropertyInfo matchingProperty, JsonSerializerOptions options)
{
base.Initialize(parameterInfo, matchingProperty, options);
InitializeDefaultValue(matchingProperty);
}
