JsonRpc/CodeGenerator/AttributeChecker.cs

using Mono.Cecil;

namespace CodeGenerator
{
    public static class AttributeChecker
    {
        public static CustomAttribute? GetTargetttribute(this ICustomAttributeProvider definition)
        {
            var customAttributes = definition.CustomAttributes;

            return customAttributes.FirstOrDefault(_ => _.AttributeType.Name == nameof(JsonRPCAttribute));
        }

        public static bool ContainsTargetAttribute(this ICustomAttributeProvider definition) =>
            GetTargetttribute(definition) != null;

        public static bool IsCompilerGenerated(this ICustomAttributeProvider definition)
        {
            var customAttributes = definition.CustomAttributes;

            return customAttributes.Any(_ => _.AttributeType.Name == "CompilerGeneratedAttribute");
        }

        public static void RemoveTargetAttribute(this ICustomAttributeProvider definition)
        {
            var customAttributes = definition.CustomAttributes;

            var targetAttribute = customAttributes.FirstOrDefault(_ => _.AttributeType.Name == nameof(JsonRPCAttribute));

            if (targetAttribute != null)
            {
                customAttributes.Remove(targetAttribute);
            }
        }
    }
}