// 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 Microsoft.CodeAnalysis;
 
namespace ILLink.Shared.TypeSystemProxy
{
    internal readonly partial struct GenericParameterProxy
    {
        public GenericParameterProxy(ITypeParameterSymbol typeParameterSymbol) => TypeParameterSymbol = typeParameterSymbol;
 
        internal partial bool HasDefaultConstructorConstraint() =>
            TypeParameterSymbol.HasConstructorConstraint |
            TypeParameterSymbol.HasValueTypeConstraint |
            TypeParameterSymbol.HasUnmanagedTypeConstraint;
 
        internal partial bool HasEnumConstraint()
        {
            foreach (ITypeSymbol constraintType in TypeParameterSymbol.ConstraintTypes)
            {
                if (constraintType.SpecialType == SpecialType.System_Enum)
                    return true;
            }
 
            return false;
        }
 
        public readonly ITypeParameterSymbol TypeParameterSymbol;
 
        public override string ToString() => TypeParameterSymbol.ToString();
    }
}