90 lines
3.5 KiB
C#
90 lines
3.5 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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using System;
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using System.Reflection;
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using Newtonsoft.Json.Utilities;
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using System.Globalization;
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namespace Newtonsoft.Json.Serialization
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{
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/// <summary>
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/// Get and set values for a <see cref="MemberInfo"/> using reflection.
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/// </summary>
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public class ReflectionValueProvider : IValueProvider
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{
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private readonly MemberInfo _memberInfo;
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/// <summary>
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/// Initializes a new instance of the <see cref="ReflectionValueProvider"/> class.
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/// </summary>
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/// <param name="memberInfo">The member info.</param>
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public ReflectionValueProvider(MemberInfo memberInfo)
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{
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ValidationUtils.ArgumentNotNull(memberInfo, nameof(memberInfo));
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_memberInfo = memberInfo;
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}
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/// <summary>
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/// Sets the value.
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/// </summary>
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/// <param name="target">The target to set the value on.</param>
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/// <param name="value">The value to set on the target.</param>
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public void SetValue(object target, object value)
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{
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try
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{
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ReflectionUtils.SetMemberValue(_memberInfo, target, value);
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}
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catch (Exception ex)
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{
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throw new JsonSerializationException("Error setting value to '{0}' on '{1}'.".FormatWith(CultureInfo.InvariantCulture, _memberInfo.Name, target.GetType()), ex);
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}
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}
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/// <summary>
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/// Gets the value.
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/// </summary>
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/// <param name="target">The target to get the value from.</param>
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/// <returns>The value.</returns>
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public object GetValue(object target)
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{
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try
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{
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// https://github.com/dotnet/corefx/issues/26053
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if (_memberInfo is PropertyInfo propertyInfo && propertyInfo.PropertyType.IsByRef)
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{
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throw new InvalidOperationException("Could not create getter for {0}. ByRef return values are not supported.".FormatWith(CultureInfo.InvariantCulture, propertyInfo));
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}
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return ReflectionUtils.GetMemberValue(_memberInfo, target);
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}
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catch (Exception ex)
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{
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throw new JsonSerializationException("Error getting value from '{0}' on '{1}'.".FormatWith(CultureInfo.InvariantCulture, _memberInfo.Name, target.GetType()), ex);
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}
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}
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}
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} |