/
MetaMember.cs
200 lines (175 loc) · 7.2 KB
/
MetaMember.cs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
#region Utf8Json License https://github.com/neuecc/Utf8Json/blob/master/LICENSE
// MIT License
//
// Copyright (c) 2017 Yoshifumi Kawai
//
// 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 System;
using System.Linq;
using System.Reflection;
using System.Reflection.Emit;
namespace Elasticsearch.Net.Utf8Json.Internal.Emit
{
internal class MetaMember
{
public string Name { get; }
public string MemberName { get; }
public bool IsProperty => PropertyInfo != null;
public bool IsField => FieldInfo != null;
public bool IsWritable { get; }
public bool IsReadable { get; }
public Type Type { get; }
public FieldInfo FieldInfo { get; }
public PropertyInfo PropertyInfo { get; }
public PropertyInfo[] InterfacePropertyInfos { get; }
public MethodInfo ShouldSerializeMethodInfo { get; }
public MethodInfo ShouldSerializeTypeMethodInfo { get; }
public object JsonFormatter { get; }
protected MetaMember(Type type, string name, string memberName, bool isWritable, bool isReadable)
{
Name = name;
MemberName = memberName;
Type = type;
IsWritable = isWritable;
IsReadable = isReadable;
}
public MetaMember(FieldInfo info, string name, object jsonFormatter, bool allowPrivate)
{
Name = name;
MemberName = info.Name;
FieldInfo = info;
Type = info.FieldType;
IsReadable = allowPrivate || info.IsPublic;
IsWritable = allowPrivate || info.IsPublic && !info.IsInitOnly;
ShouldSerializeMethodInfo = GetShouldSerialize(info);
ShouldSerializeTypeMethodInfo = info.FieldType.GetShouldSerializeMethod();
JsonFormatter = jsonFormatter;
}
public MetaMember(PropertyInfo info, string name, PropertyInfo[] interfaceInfos, object jsonFormatter, bool allowPrivate)
{
Name = name;
MemberName = info.Name;
PropertyInfo = info;
InterfacePropertyInfos = interfaceInfos;
Type = info.PropertyType;
IsReadable = info.GetMethod != null && (allowPrivate || info.GetMethod.IsPublic) && !info.GetMethod.IsStatic;
IsWritable = info.SetMethod != null && (allowPrivate || info.SetMethod.IsPublic) && !info.SetMethod.IsStatic;
ShouldSerializeMethodInfo = GetShouldSerialize(info);
ShouldSerializeTypeMethodInfo = info.PropertyType.GetShouldSerializeMethod();
JsonFormatter = jsonFormatter;
}
private static MethodInfo GetShouldSerialize(MemberInfo info)
{
var shouldSerialize = $"ShouldSerialize{info.Name}";
return info.DeclaringType
.GetMethods(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic)
.FirstOrDefault(x => x.Name == shouldSerialize && x.ReturnType == typeof(bool) && x.GetParameters().Length == 0);
}
public class AttributeDeclaringType<T> where T : Attribute
{
public AttributeDeclaringType(T attribute, Type declaringType)
{
Attribute = attribute;
DeclaringType = declaringType;
}
public T Attribute { get; }
public Type DeclaringType { get; }
}
public AttributeDeclaringType<T> GetCustomAttribute<T>(bool inherit) where T : Attribute
{
if (IsProperty)
{
var attribute = PropertyInfo.GetCustomAttribute<T>(inherit);
if (attribute != null)
return new AttributeDeclaringType<T>(attribute, PropertyInfo.DeclaringType);
if (InterfacePropertyInfos == null)
return null;
// check interface properties for respective attribute.
foreach (var info in InterfacePropertyInfos)
{
attribute = info.GetCustomAttribute<T>(inherit);
if (attribute != null)
return new AttributeDeclaringType<T>(attribute, info.DeclaringType);
}
}
else if (IsField)
{
var attribute = FieldInfo.GetCustomAttribute<T>(inherit);
if (attribute != null)
return new AttributeDeclaringType<T>(attribute, FieldInfo.DeclaringType);
}
return null;
}
public virtual void EmitLoadValue(ILGenerator il)
{
if (IsProperty)
il.EmitCall(PropertyInfo.GetMethod);
else
il.Emit(OpCodes.Ldfld, FieldInfo);
}
public virtual void EmitStoreValue(ILGenerator il)
{
if (IsProperty)
il.EmitCall(PropertyInfo.SetMethod);
else
il.Emit(OpCodes.Stfld, FieldInfo);
}
}
// used for serialize exception...
internal class StringConstantValueMetaMember : MetaMember
{
private readonly string _constant;
public StringConstantValueMetaMember(string name, string constant)
: base(typeof(string), name, name, false, true) =>
_constant = constant;
public override void EmitLoadValue(ILGenerator il)
{
il.Emit(OpCodes.Pop); // pop load instance
il.Emit(OpCodes.Ldstr, _constant);
}
public override void EmitStoreValue(ILGenerator il) => throw new NotSupportedException();
}
// used for serialize exception...
internal class InnerExceptionMetaMember : MetaMember
{
private static readonly MethodInfo GetInnerException =
ExpressionUtility.GetPropertyInfo((Exception ex) => ex.InnerException).GetMethod;
private static readonly MethodInfo NonGenericSerialize =
ExpressionUtility.GetMethodInfo<JsonWriter>(writer => JsonSerializer.NonGeneric.Serialize(ref writer, default, default));
// set after...
internal ArgumentField ArgWriter;
internal ArgumentField ArgValue;
internal ArgumentField ArgResolver;
public InnerExceptionMetaMember(string name)
: base(typeof(Exception), name, name, false, true)
{
}
public override void EmitLoadValue(ILGenerator il) => il.Emit(OpCodes.Callvirt, GetInnerException);
public override void EmitStoreValue(ILGenerator il) => throw new NotSupportedException();
public void EmitSerializeDirectly(ILGenerator il)
{
ArgWriter.EmitLoad();
ArgValue.EmitLoad();
il.Emit(OpCodes.Callvirt, GetInnerException);
ArgResolver.EmitLoad();
il.EmitCall(NonGenericSerialize);
}
}
}