//  This file is part of PipeCI.Yml - A .NET library for YAML.
//  Copyright (c) Antoine Aubry and contributors
    
//  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 PipeCI.Yml.Core;

namespace PipeCI.Yml.Serialization.ObjectGraphVisitors
{
	public abstract class ChainedObjectGraphVisitor : IObjectGraphVisitor
	{
		private readonly IObjectGraphVisitor nextVisitor;

		protected ChainedObjectGraphVisitor(IObjectGraphVisitor nextVisitor)
		{
			this.nextVisitor = nextVisitor;
		}

		public virtual bool Enter(IObjectDescriptor value)
		{
			return nextVisitor.Enter(value);
		}

		public virtual bool EnterMapping(IObjectDescriptor key, IObjectDescriptor value)
		{
			return nextVisitor.EnterMapping(key, value);
		}

		public virtual bool EnterMapping(IPropertyDescriptor key, IObjectDescriptor value)
		{
			return nextVisitor.EnterMapping(key, value);
		}

		public virtual void VisitScalar(IObjectDescriptor scalar)
		{
			nextVisitor.VisitScalar(scalar);
		}

		public virtual void VisitMappingStart(IObjectDescriptor mapping, Type keyType, Type valueType)
		{
			nextVisitor.VisitMappingStart(mapping, keyType, valueType);
		}

		public virtual void VisitMappingEnd(IObjectDescriptor mapping)
		{
			nextVisitor.VisitMappingEnd(mapping);
		}

		public virtual void VisitSequenceStart(IObjectDescriptor sequence, Type elementType)
		{
			nextVisitor.VisitSequenceStart(sequence, elementType);
		}

		public virtual void VisitSequenceEnd(IObjectDescriptor sequence)
		{
			nextVisitor.VisitSequenceEnd(sequence);
		}
	}
}