public static async Task <object> EvalMemberPath(
BoundMemberInfo bound_member_info,
object[] args,
bool set_value,
TypeConverter argument_converter)
{
var member_target = bound_member_info.Target;
var member_info = bound_member_info.MemberInfo;
switch (member_info.MemberType)
{
case MemberTypes.Field:
if (set_value)
{
((FieldInfo)member_info).SetValue(member_target, args[0]);
}
else
{
return(((FieldInfo)member_info).GetValue(member_target));
}
break;
case MemberTypes.Property:
if (set_value)
{
((PropertyInfo)member_info).SetValue(member_target, args[0]);
}
else
{
return(((PropertyInfo)member_info).GetValue(member_target));
}
break;
default:
case MemberTypes.Method:
var method_info = ((MethodInfo)member_info);
var parameters = method_info.GetParameters();
var args_converted = parameters
.Zip(args, (p, a) => new { p, a })
.Select(e => argument_converter.ConvertTo(e.a, e.p.ParameterType))
.ToArray();
var result = method_info.Invoke(member_target, args_converted);
if (result is Task)
{
return(await(dynamic) result);
}
return(result);
}
return(args[0]);
}
protected override bool TryGet <T>(BoundMemberInfo memberInfo, IDictionary <string, object> source, out T value)
{
if (!source.TryGetValue(memberInfo.Name, out var objectValue))
{
value = default;
return(false);
}
if (typeof(T) == objectValue.GetType())
{
value = (T)objectValue;
return(true);
}
value = default;
return(false);
}
protected override bool TryGet <T>(BoundMemberInfo memberInfo, LogsQueryResultRow source, out T value)
{
int column;
// Binding entire row to a primitive
if (memberInfo == null)
{
column = 0;
}
else if (!source.TryGetColumn(memberInfo.Name, out column))
{
value = default;
return(false);
}
if (source.IsNull(column) &&
(!typeof(T).IsValueType ||
typeof(T).IsGenericType &&
typeof(T).GetGenericTypeDefinition() == typeof(Nullable <>)))
{
value = default;
return(true);
}
if (typeof(T) == typeof(int))
{
value = (T)(object)source.GetInt32(column);
}
else if (typeof(T) == typeof(string))
{
value = (T)(object)source.GetString(column);
}
else if (typeof(T) == typeof(bool))
{
value = (T)(object)source.GetBoolean(column);
}
else if (typeof(T) == typeof(long))
{
value = (T)(object)source.GetInt64(column);
}
else if (typeof(T) == typeof(decimal))
{
value = (T)(object)source.GetDecimal(column);
}
else if (typeof(T) == typeof(double))
{
value = (T)(object)source.GetDouble(column);
}
else if (typeof(T) == typeof(object))
{
value = (T)source.GetObject(column);
}
else if (typeof(T) == typeof(Guid))
{
value = (T)(object)source.GetGuid(column);
}
else if (typeof(T) == typeof(DateTimeOffset))
{
value = (T)(object)source.GetDateTimeOffset(column);
}
else if (typeof(T) == typeof(TimeSpan))
{
value = (T)(object)source.GetTimeSpan(column);
}
else if (typeof(T) == typeof(int?))
{
value = (T)(object)(int?)source.GetInt32(column);
}
else if (typeof(T) == typeof(bool?))
{
value = (T)(object)(bool?)source.GetBoolean(column);
}
else if (typeof(T) == typeof(long?))
{
value = (T)(object)(long?)source.GetInt64(column);
}
else if (typeof(T) == typeof(decimal?))
{
value = (T)(object)(decimal?)source.GetDecimal(column);
}
else if (typeof(T) == typeof(double?))
{
value = (T)(object)(double?)source.GetDouble(column);
}
else if (typeof(T) == typeof(Guid?))
{
value = (T)(object)(Guid?)source.GetGuid(column);
}
else if (typeof(T) == typeof(DateTimeOffset?))
{
value = (T)(object)(DateTimeOffset?)source.GetDateTimeOffset(column);
}
else if (typeof(T) == typeof(TimeSpan?))
{
value = (T)(object)(TimeSpan?)source.GetTimeSpan(column);
}
else
{
throw new NotSupportedException($"The {typeof(T)} type is not supported as a deserialization target.");
}
return(true);
}
protected override void Set <T>(LogsQueryResultRow destination, T value, BoundMemberInfo memberInfo)
{
throw new NotSupportedException();
}
protected override void Set <T>(IDictionary <string, object> destination, T value, BoundMemberInfo memberInfo)
{
destination[memberInfo.Name] = value;
}
