116 lines
4.6 KiB
C#
116 lines
4.6 KiB
C#
#region License
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// Copyright (c) 2007 James Newton-King
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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#endregion
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#if HAVE_DYNAMIC
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using System;
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using System.Dynamic;
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using System.Runtime.CompilerServices;
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using LC.Newtonsoft.Json.Utilities;
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namespace LC.Newtonsoft.Json.Serialization
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{
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/// <summary>
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/// Contract details for a <see cref="Type"/> used by the <see cref="JsonSerializer"/>.
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/// </summary>
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public class JsonDynamicContract : JsonContainerContract
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{
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/// <summary>
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/// Gets the object's properties.
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/// </summary>
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/// <value>The object's properties.</value>
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public JsonPropertyCollection Properties { get; }
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/// <summary>
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/// Gets or sets the property name resolver.
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/// </summary>
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/// <value>The property name resolver.</value>
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public Func<string, string>? PropertyNameResolver { get; set; }
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private readonly ThreadSafeStore<string, CallSite<Func<CallSite, object, object>>> _callSiteGetters =
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new ThreadSafeStore<string, CallSite<Func<CallSite, object, object>>>(CreateCallSiteGetter);
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private readonly ThreadSafeStore<string, CallSite<Func<CallSite, object, object?, object>>> _callSiteSetters =
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new ThreadSafeStore<string, CallSite<Func<CallSite, object, object?, object>>>(CreateCallSiteSetter);
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private static CallSite<Func<CallSite, object, object>> CreateCallSiteGetter(string name)
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{
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GetMemberBinder getMemberBinder = (GetMemberBinder)DynamicUtils.BinderWrapper.GetMember(name, typeof(DynamicUtils));
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return CallSite<Func<CallSite, object, object>>.Create(new NoThrowGetBinderMember(getMemberBinder));
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}
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private static CallSite<Func<CallSite, object, object?, object>> CreateCallSiteSetter(string name)
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{
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SetMemberBinder binder = (SetMemberBinder)DynamicUtils.BinderWrapper.SetMember(name, typeof(DynamicUtils));
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return CallSite<Func<CallSite, object, object?, object>>.Create(new NoThrowSetBinderMember(binder));
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}
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/// <summary>
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/// Initializes a new instance of the <see cref="JsonDynamicContract"/> class.
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/// </summary>
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/// <param name="underlyingType">The underlying type for the contract.</param>
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public JsonDynamicContract(Type underlyingType)
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: base(underlyingType)
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{
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ContractType = JsonContractType.Dynamic;
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Properties = new JsonPropertyCollection(UnderlyingType);
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}
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internal bool TryGetMember(IDynamicMetaObjectProvider dynamicProvider, string name, out object? value)
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{
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ValidationUtils.ArgumentNotNull(dynamicProvider, nameof(dynamicProvider));
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CallSite<Func<CallSite, object, object>> callSite = _callSiteGetters.Get(name);
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object result = callSite.Target(callSite, dynamicProvider);
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if (!ReferenceEquals(result, NoThrowExpressionVisitor.ErrorResult))
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{
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value = result;
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return true;
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}
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else
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{
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value = null;
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return false;
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}
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}
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internal bool TrySetMember(IDynamicMetaObjectProvider dynamicProvider, string name, object? value)
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{
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ValidationUtils.ArgumentNotNull(dynamicProvider, nameof(dynamicProvider));
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CallSite<Func<CallSite, object, object?, object>> callSite = _callSiteSetters.Get(name);
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object result = callSite.Target(callSite, dynamicProvider, value);
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return !ReferenceEquals(result, NoThrowExpressionVisitor.ErrorResult);
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}
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}
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}
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#endif |