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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
using Newtonsoft.Json.Serialization;
using System;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
using System.Resources;
using System.Globalization;
#if NET20
using Newtonsoft.Json.Utilities.LinqBridge;
#else
using System.Linq;
#endif
namespace Newtonsoft.Json.Utilities
{
internal class ReflectionMember
{
public Type MemberType { get; set; }
public Func<object, object> Getter { get; set; }
public Action<object, object> Setter { get; set; }
}
internal class ReflectionObject
{
public ObjectConstructor<object> Creator { get; private set; }
public IDictionary<string, ReflectionMember> Members { get; private set; }
public ReflectionObject()
{
Members = new Dictionary<string, ReflectionMember>();
}
public object GetValue(object target, string member)
{
Func<object, object> getter = Members[member].Getter;
return getter(target);
}
public void SetValue(object target, string member, object value)
{
Action<object, object> setter = Members[member].Setter;
setter(target, value);
}
public Type GetType(string member)
{
return Members[member].MemberType;
}
public static ReflectionObject Create(Type t, params string[] memberNames)
{
return Create(t, null, memberNames);
}
public static ReflectionObject Create(Type t, MethodBase creator, params string[] memberNames)
{
ReflectionObject d = new ReflectionObject();
ReflectionDelegateFactory delegateFactory = JsonTypeReflector.ReflectionDelegateFactory;
if (creator != null)
{
d.Creator = delegateFactory.CreateParametrizedConstructor(creator);
}
else
{
if (ReflectionUtils.HasDefaultConstructor(t, false))
{
Func<object> ctor = delegateFactory.CreateDefaultConstructor<object>(t);
d.Creator = args => ctor();
}
}
foreach (string memberName in memberNames)
{
MemberInfo[] members = t.GetMember(memberName, BindingFlags.Instance | BindingFlags.Public);
if (members.Length != 1)
throw new ArgumentException("Expected a single member with the name '{0}'.".FormatWith(CultureInfo.InvariantCulture, memberName));
MemberInfo member = members.Single();
ReflectionMember reflectionMember = new ReflectionMember();
switch (member.MemberType())
{
case MemberTypes.Field:
case MemberTypes.Property:
if (ReflectionUtils.CanReadMemberValue(member, false))
reflectionMember.Getter = delegateFactory.CreateGet<object>(member);
if (ReflectionUtils.CanSetMemberValue(member, false, false))
reflectionMember.Setter = delegateFactory.CreateSet<object>(member);
break;
case MemberTypes.Method:
MethodInfo method = (MethodInfo)member;
if (method.IsPublic)
{
ParameterInfo[] parameters = method.GetParameters();
if (parameters.Length == 0 && method.ReturnType != typeof(void))
{
MethodCall<object, object> call = delegateFactory.CreateMethodCall<object>(method);
reflectionMember.Getter = target => call(target);
}
else if (parameters.Length == 1 && method.ReturnType == typeof(void))
{
MethodCall<object, object> call = delegateFactory.CreateMethodCall<object>(method);
reflectionMember.Setter = (target, arg) => call(target, arg);
}
}
break;
default:
throw new ArgumentException("Unexpected member type '{0}' for member '{1}'.".FormatWith(CultureInfo.InvariantCulture, member.MemberType(), member.Name));
}
if (ReflectionUtils.CanReadMemberValue(member, false))
reflectionMember.Getter = delegateFactory.CreateGet<object>(member);
if (ReflectionUtils.CanSetMemberValue(member, false, false))
reflectionMember.Setter = delegateFactory.CreateSet<object>(member);
reflectionMember.MemberType = ReflectionUtils.GetMemberUnderlyingType(member);
d.Members[memberName] = reflectionMember;
}
return d;
}
}
}
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