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#region License
// Copyright (c) 2007 James Newton-King
//
// 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.
#endregion
#if !(NET35 || NET20 || PORTABLE40)
using System;
using System.Collections.Generic;
using System.Dynamic;
using System.Reflection;
using System.Runtime.CompilerServices;
using Newtonsoft.Json.Utilities;
using System.Collections;
namespace Newtonsoft.Json.Serialization
{
/// <summary>
/// Contract details for a <see cref="Type"/> used by the <see cref="JsonSerializer"/>.
/// </summary>
public class JsonDynamicContract : JsonContainerContract
{
/// <summary>
/// Gets the object's properties.
/// </summary>
/// <value>The object's properties.</value>
public JsonPropertyCollection Properties { get; private set; }
/// <summary>
/// Gets or sets the property name resolver.
/// </summary>
/// <value>The property name resolver.</value>
public Func<string, string> PropertyNameResolver { get; set; }
private readonly ThreadSafeStore<string, CallSite<Func<CallSite, object, object>>> _callSiteGetters =
new ThreadSafeStore<string, CallSite<Func<CallSite, object, object>>>(CreateCallSiteGetter);
private readonly ThreadSafeStore<string, CallSite<Func<CallSite, object, object, object>>> _callSiteSetters =
new ThreadSafeStore<string, CallSite<Func<CallSite, object, object, object>>>(CreateCallSiteSetter);
private static CallSite<Func<CallSite, object, object>> CreateCallSiteGetter(string name)
{
GetMemberBinder getMemberBinder = (GetMemberBinder)DynamicUtils.BinderWrapper.GetMember(name, typeof(DynamicUtils));
return CallSite<Func<CallSite, object, object>>.Create(new NoThrowGetBinderMember(getMemberBinder));
}
private static CallSite<Func<CallSite, object, object, object>> CreateCallSiteSetter(string name)
{
SetMemberBinder binder = (SetMemberBinder)DynamicUtils.BinderWrapper.SetMember(name, typeof(DynamicUtils));
return CallSite<Func<CallSite, object, object, object>>.Create(new NoThrowSetBinderMember(binder));
}
/// <summary>
/// Initializes a new instance of the <see cref="JsonDynamicContract"/> class.
/// </summary>
/// <param name="underlyingType">The underlying type for the contract.</param>
public JsonDynamicContract(Type underlyingType)
: base(underlyingType)
{
ContractType = JsonContractType.Dynamic;
Properties = new JsonPropertyCollection(UnderlyingType);
}
internal bool TryGetMember(IDynamicMetaObjectProvider dynamicProvider, string name, out object value)
{
ValidationUtils.ArgumentNotNull(dynamicProvider, nameof(dynamicProvider));
CallSite<Func<CallSite, object, object>> callSite = _callSiteGetters.Get(name);
object result = callSite.Target(callSite, dynamicProvider);
if (!ReferenceEquals(result, NoThrowExpressionVisitor.ErrorResult))
{
value = result;
return true;
}
else
{
value = null;
return false;
}
}
internal bool TrySetMember(IDynamicMetaObjectProvider dynamicProvider, string name, object value)
{
ValidationUtils.ArgumentNotNull(dynamicProvider, nameof(dynamicProvider));
CallSite<Func<CallSite, object, object, object>> callSite = _callSiteSetters.Get(name);
object result = callSite.Target(callSite, dynamicProvider, value);
return !ReferenceEquals(result, NoThrowExpressionVisitor.ErrorResult);
}
}
}
#endif
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