// Copyright (c) .NET Foundation and contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.

using Mono.Cecil;

namespace ILLink.Shared.TypeSystemProxy
{
    internal readonly partial struct GenericParameterProxy
    {
        public GenericParameterProxy(GenericParameter genericParameter) => GenericParameter = genericParameter;

        public static implicit operator GenericParameterProxy(GenericParameter genericParameter) => new(genericParameter);

        internal partial bool HasDefaultConstructorConstraint() => GenericParameter.HasDefaultConstructorConstraint;

        internal partial bool HasEnumConstraint()
        {
            if (GenericParameter.HasConstraints)
            {
                foreach (GenericParameterConstraint? constraint in GenericParameter.Constraints)
                {
                    if (constraint.ConstraintType.Name == "Enum" && constraint.ConstraintType.Namespace == "System")
                        return true;
                }
            }

            return false;
        }

        public readonly GenericParameter GenericParameter;

        public override string ToString() => GenericParameter.ToString();
    }
}