// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

using ILCompiler;
using ILCompiler.Dataflow;
using Internal.TypeSystem;
using Internal.TypeSystem.Ecma;

#nullable enable

namespace ILLink.Shared.TypeSystemProxy
{
    internal partial struct ParameterProxy
    {
        public partial ReferenceKind GetReferenceKind() => Method.Method.ParameterReferenceKind((int)Index);
        public TypeDesc ParameterType => IsImplicitThis
            ? Method.Method.OwningType
            : Method.Method.Signature[MetadataIndex].InstantiateSignature (Method.Method.OwningType.Instantiation, Method.Method.Instantiation);

        public partial string GetDisplayName() => IsImplicitThis ? "this"
            : (Method.Method is EcmaMethod ecmaMethod) ? ecmaMethod.GetParameterDisplayName(MetadataIndex)
            : $"#{Index}";

        public partial bool IsTypeOf(string typeName) => ParameterType.IsTypeOf(typeName);

        public bool IsTypeOf(WellKnownType type) => ParameterType.IsTypeOf(type);
    }
}