Append DTOTypeBuilder

ZeroLevel.Discovery/obj/Debug/ZeroLevel.Discovery.csproj.CoreCompileInputs.cache

@@ -1 +1 @@
-fe8032ac49bedc0ec84767ee0419b2fc618b5766
+e6d14b54c463a8096220ac67f9a339de12a3fb4a

ZeroLevel/Services/Reflection/DTOTypeBuilder.cs

@@ -0,0 +1,151 @@
+using System;
+using System.ComponentModel;
+using System.Reflection;
+using System.Reflection.Emit;
+using System.Runtime.Serialization;
+using System.Threading;
+
+namespace ZeroLevel.Services.Reflection
+{
+    /// <summary>
+    /// Конструктор простейших типов, без методов
+    /// </summary>
+    public sealed class DTOTypeBuilder
+    {
+        #region Fields
+        private readonly TypeBuilder _typeBuilder;
+        #endregion
+
+        /// <summary>
+        /// Конструктор
+        /// </summary>
+        /// <param name="typeName">Название создаваемого типа</param>
+        public DTOTypeBuilder(string typeName)
+        {
+            var newAssemblyName = new AssemblyName(Guid.NewGuid().ToString());
+            var assemblyBuilder = Thread.GetDomain().DefineDynamicAssembly(newAssemblyName, AssemblyBuilderAccess.Run);
+            var moduleBuilder = assemblyBuilder.DefineDynamicModule(newAssemblyName.Name);
+            _typeBuilder = moduleBuilder.DefineType(typeName,
+                TypeAttributes.Public |
+                TypeAttributes.Class |
+                TypeAttributes.AutoClass |
+                TypeAttributes.AnsiClass |
+                TypeAttributes.BeforeFieldInit | TypeAttributes.Serializable |
+                TypeAttributes.AutoLayout, typeof(object));
+
+            var a_ctor = typeof(DataContractAttribute).GetConstructor(new Type[] { });
+            var a_builder = new CustomAttributeBuilder(a_ctor, new object[] { });
+            _typeBuilder.SetCustomAttribute(a_builder);
+        }
+
+        public void AppendField<T>(string name)
+        {
+            _typeBuilder.DefineField(name, typeof(T), FieldAttributes.Public);
+        }
+
+        public void AppendField<T>(string name, T defaultValue)
+        {
+            var builder = _typeBuilder.DefineField(name, typeof(T), FieldAttributes.Public | FieldAttributes.HasDefault);
+            builder.SetConstant(defaultValue);
+        }
+
+        public void AppendProperty<T>(string name)
+        {
+            CreateProperty<T>(name, _typeBuilder, null);
+        }
+
+        public void AppendProperty<T>(string name, T defaultValue)
+        {
+            CreateProperty<T>(name, _typeBuilder, null).SetConstant(defaultValue);
+        }
+
+        public void AppendProperty<T>(string name, string description)
+        {
+            CreateProperty<T>(name, _typeBuilder, description);
+        }
+
+        public void AppendProperty<T>(string name, string description, T defaultValue)
+        {
+            CreateProperty<T>(name, _typeBuilder, description).SetConstant(defaultValue);
+        }
+
+        public void AppendProperty(Type propertyType, string name)
+        {
+            CreateProperty(propertyType, name, _typeBuilder, null);
+        }
+
+        public void AppendProperty(Type propertyType, string name, object defaultValue)
+        {
+            CreateProperty(propertyType, name, _typeBuilder, null).SetConstant(defaultValue);
+        }
+
+        public void AppendProperty(Type propertyType, string name, string description)
+        {
+            CreateProperty(propertyType, name, _typeBuilder, description);
+        }
+
+        public void AppendProperty(Type propertyType, string name, string description, object defaultValue)
+        {
+            CreateProperty(propertyType, name, _typeBuilder, description).SetConstant(defaultValue);
+        }
+
+        private static FieldBuilder CreateProperty<T>(string name,
+            TypeBuilder typeBuilder,
+            string description)
+        {
+            return CreateProperty(typeof(T), name, typeBuilder, description);
+        }
+
+        private static FieldBuilder CreateProperty(Type propertyType, string name,
+            TypeBuilder typeBuilder,
+            string description)
+        {
+            var backingFieldBuilder = typeBuilder.DefineField("f__" + name.ToLowerInvariant(), propertyType, FieldAttributes.Private);
+            var propertyBuilder = typeBuilder.DefineProperty(name, PropertyAttributes.HasDefault,
+                propertyType, new Type[] { propertyType });
+            // Build setter
+            var getterMethodBuilder = typeBuilder.DefineMethod("get_" + name,
+                MethodAttributes.Public | MethodAttributes.SpecialName | MethodAttributes.HideBySig,
+                propertyType, Type.EmptyTypes);
+            var getterIl = getterMethodBuilder.GetILGenerator();
+            getterIl.Emit(OpCodes.Ldarg_0);
+            getterIl.Emit(OpCodes.Ldfld, backingFieldBuilder);
+            getterIl.Emit(OpCodes.Ret);
+            // Build setter
+            var setterMethodBuilder = typeBuilder.DefineMethod("set_" + name,
+                MethodAttributes.Public | MethodAttributes.SpecialName | MethodAttributes.HideBySig,
+                null, new[] { propertyType });
+            var setterIl = setterMethodBuilder.GetILGenerator();
+            setterIl.Emit(OpCodes.Ldarg_0);
+            setterIl.Emit(OpCodes.Ldarg_1);
+            setterIl.Emit(OpCodes.Stfld, backingFieldBuilder);
+            setterIl.Emit(OpCodes.Ret);
+            propertyBuilder.SetGetMethod(getterMethodBuilder);
+            propertyBuilder.SetSetMethod(setterMethodBuilder);
+            // Set description attribute
+            if (false == string.IsNullOrWhiteSpace(description))
+            {
+                var ctorParams = new[] { typeof(string) };
+                var classCtorInfo = typeof(DescriptionAttribute).GetConstructor(ctorParams);
+                var myCABuilder = new CustomAttributeBuilder(classCtorInfo, new object[] { description });
+                propertyBuilder.SetCustomAttribute(myCABuilder);
+            }
+            var a_ctor = typeof(DataMemberAttribute).GetConstructor(new Type[] { });
+            var a_builder = new CustomAttributeBuilder(a_ctor, new object[] { });
+            propertyBuilder.SetCustomAttribute(a_builder);
+            return backingFieldBuilder;
+        }
+
+        /// <summary>
+        /// Собирает конечный тип
+        /// </summary>
+        /// <returns>Готовый тип</returns>
+        public Type Complete()
+        {
+            // Сборка типа
+            var type = _typeBuilder.CreateType();
+            // Результат
+            return type;
+        }
+    }
+}

ZeroLevel/ZeroLevel.csproj

@@ -290,6 +290,7 @@
     <Compile Include="Services\Queries\Storage\IStorage.cs" />
     <Compile Include="Services\Queries\Storage\MemoryStorage.cs" />
     <Compile Include="Services\Queries\Storage\QueryResult.cs" />
+    <Compile Include="Services\Reflection\DTOTypeBuilder.cs" />
     <Compile Include="Services\Reflection\ReferenceHelper.cs" />
     <Compile Include="Services\Reflection\StringToTypeConverter.cs" />
     <Compile Include="Services\Reflection\TypeActivator.cs" />

ZeroLevel/obj/Debug/ZeroLevel.csproj.CoreCompileInputs.cache

@@ -1 +1 @@
-f165fe7fc045ddedd4b08504422209fd88e56cc6
+35db55177c262262ace2e47d49fa51ff7b48a736