//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="ExpInstanceReferenceNode"
// Project: StgSharp
// AuthorGroup: Nitload Space
// Copyright (c) Nitload Space. All rights reserved.
//     
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
//     
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;

namespace StgSharp.Script.Express
{
    public class ExpInstanceReferenceNode : ExpSyntaxNode
    {

        internal ExpInstanceReferenceNode(Token source, ExpElementInstance instance)
            : base(source)
        {
            OriginObject = instance;
            _nodeFlag = (OriginObject._nodeFlag | (ExpNodeFlag.Name_Any | ExpNodeFlag.Collection_Any));
            CodeConvertTemplate = source.Value;
        }

        internal ExpInstanceReferenceNode(Token source, ExpInstanceReferenceNode reference)
            : base(source)
        {
            OriginObject = reference.OriginObject;
            _nodeFlag = (OriginObject._nodeFlag | (ExpNodeFlag.Name_Any | ExpNodeFlag.Collection_Any));
            CodeConvertTemplate = source.Value;
        }

        public ExpElementInstance OriginObject { get ; private set; }

        public override ExpSyntaxNode Left => Empty;

        public override ExpSyntaxNode Right => Empty;

        public override IExpElementSource EqualityTypeConvert => OriginObject.EqualityTypeConvert;

        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public static ExpInstanceReferenceNode MakeReferenceFrom(Token source, ExpElementInstance instance)
        {
            /**/
            if (instance.IsLiteral)
            {
                throw new ExpCompileException(source, "Cannot make reference to a literal.");
            }
            if (instance.CodeConvertTemplate != source.Value) {
                throw new ExpCompileException(source, "Token point at a wrong instance");
            }
            /**/
            return new ExpInstanceReferenceNode(source, instance);
        }

    }
}