diff --git a/FreeSql/Internal/DynamicCompileBuilder.cs b/FreeSql/Internal/DynamicCompileBuilder.cs deleted file mode 100644 index fb4903de..00000000 --- a/FreeSql/Internal/DynamicCompileBuilder.cs +++ /dev/null @@ -1,264 +0,0 @@ -using FreeSql.DataAnnotations; -using System; -using System.Collections; -using System.Collections.Concurrent; -using System.Collections.Generic; -using System.Linq; -using System.Linq.Expressions; -using System.Reflection; -using System.Reflection.Emit; -using System.Security.Cryptography; -using FreeSql.Internal.Model; -using System.Text; - -namespace FreeSql.Internal -{ -#if net40 || NETSTANDARD2_0 -#else - public class DynamicCompileBuilder - { - private string _className = string.Empty; - private Attribute[] _tableAttributes = null; - private List _properties = new List(); - - /// - /// 配置Class - /// - /// 类名 - /// 类标记的特性[Table(Name = "xxx")] - /// - public DynamicCompileBuilder(string className, params Attribute[] attributes) - { - _className = className; - _tableAttributes = attributes; - } - - /// - /// 配置属性 - /// - /// 属性名称 - /// 属性类型 - /// 属性标记的特性-支持多个 - /// - public DynamicCompileBuilder Property(string propertyName, Type propertyType, params Attribute[] attributes) - { - _properties.Add(new DynamicPropertyInfo() - { - PropertyName = propertyName, - PropertyType = propertyType, - Attributes = attributes - }); - return this; - } - - private void SetTableAttribute(ref TypeBuilder typeBuilder) - { - if (_tableAttributes == null) return; - - var propertyValues = new ArrayList(); - foreach (var tableAttribute in _tableAttributes) - { - if (tableAttribute == null) continue; - - var classCtorInfo = tableAttribute.GetType().GetConstructor(new Type[] { }); - var propertyInfos = tableAttribute.GetType().GetProperties().Where(p => p.CanWrite == true).ToArray(); - foreach (var propertyInfo in propertyInfos) - propertyValues.Add(propertyInfo.GetValue(tableAttribute)); - - var customAttributeBuilder = new CustomAttributeBuilder(classCtorInfo, new object[0], propertyInfos, propertyValues.ToArray()); - typeBuilder.SetCustomAttribute(customAttributeBuilder); - } - } - - private void SetPropertys(ref TypeBuilder typeBuilder) - { - foreach (var pinfo in _properties) - { - var propertyName = pinfo.PropertyName; - var propertyType = pinfo?.PropertyType ?? typeof(object); - //设置字段 - var field = typeBuilder.DefineField($"_{FirstCharToLower(propertyName)}", propertyType, - FieldAttributes.Private); - var firstCharToUpper = FirstCharToUpper(propertyName); - //设置属性方法 - var methodGet = typeBuilder.DefineMethod($"Get{firstCharToUpper}", MethodAttributes.Public, - propertyType, null); - var methodSet = typeBuilder.DefineMethod($"Set{firstCharToUpper}", MethodAttributes.Public, null, - new Type[] { propertyType }); - - var ilOfGet = methodGet.GetILGenerator(); - ilOfGet.Emit(OpCodes.Ldarg_0); - ilOfGet.Emit(OpCodes.Ldfld, field); - ilOfGet.Emit(OpCodes.Ret); - - var ilOfSet = methodSet.GetILGenerator(); - ilOfSet.Emit(OpCodes.Ldarg_0); - ilOfSet.Emit(OpCodes.Ldarg_1); - ilOfSet.Emit(OpCodes.Stfld, field); - ilOfSet.Emit(OpCodes.Ret); - - //设置属性 - var propertyBuilder = typeBuilder.DefineProperty(propertyName, PropertyAttributes.None, propertyType, null); - propertyBuilder.SetGetMethod(methodGet); - propertyBuilder.SetSetMethod(methodSet); - - foreach (var pinfoAttribute in pinfo.Attributes) - { - //设置特性 - SetPropertyAttribute(ref propertyBuilder, pinfoAttribute); - } - } - } - - private void SetPropertyAttribute(ref PropertyBuilder propertyBuilder, T tAttribute) - { - if (tAttribute == null) return; - - var propertyInfos = tAttribute.GetType().GetProperties().Where(p => p.CanWrite == true).ToArray(); - var constructor = tAttribute.GetType().GetConstructor(new Type[] { }); - var propertyValues = new ArrayList(); - foreach (var propertyInfo in propertyInfos) - propertyValues.Add(propertyInfo.GetValue(tAttribute)); - - var customAttributeBuilder = new CustomAttributeBuilder(constructor, new object[0], propertyInfos, propertyValues.ToArray()); - propertyBuilder.SetCustomAttribute(customAttributeBuilder); - } - - /// - /// Emit动态创建出Class - Type - /// - /// - public Type Build() - { - //初始化AssemblyName的一个实例 - var assemblyName = new AssemblyName("FreeSql.DynamicCompileBuilder"); - //设置程序集的名称 - var defineDynamicAssembly = AssemblyBuilder.DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Run); - //动态在程序集内创建一个模块 - var defineDynamicModule = - defineDynamicAssembly.DefineDynamicModule("FreeSql.DynamicCompileBuilder.Dynamics"); - //动态的在模块内创建一个类 - var typeBuilder = defineDynamicModule.DefineType(_className, TypeAttributes.Public | TypeAttributes.Class); - - //设置TableAttribute - SetTableAttribute(ref typeBuilder); - - //设置属性 - SetPropertys(ref typeBuilder); - - //创建类的Type对象 - return typeBuilder.CreateType(); - } - - //委托缓存 - private static ConcurrentDictionary - _delegateCache = new ConcurrentDictionary(); - - //设置动态对象的属性值 使用FreeSql自带功能 - public static object CreateObjectByTypeByCodeFirst(IFreeSql fsql, Type type, - Dictionary porpertys) - { - if (type == null) - return null; - object istance = Activator.CreateInstance(type); - if (istance == null) - return null; - var table = fsql.CodeFirst.GetTableByEntity(type); - foreach (var kv in porpertys) - { - table.ColumnsByCs[kv.Key].SetValue(istance, kv.Value); - } - - return istance; - } - - ////设置动态对象的属性值，使用表达式目录树 - //public static object CreateObjectByType(Type type, Dictionary porpertys) - //{ - // if (type == null) - // return null; - // object istance = Activator.CreateInstance(type); - // if (istance == null) - // return null; - // //根据字典中的key确定缓存 - // var cacheKeyStr = string.Join("-", porpertys.Keys.OrderBy(s => s)); - // var cacheKey = Md5Encryption(cacheKeyStr); - // var dynamicDelegate = _delegateCache.GetOrAdd(cacheKey, key => - // { - // //表达式目录树构建委托 - // var typeParam = Expression.Parameter(type); - // var dicParamType = typeof(Dictionary); - // var dicParam = Expression.Parameter(dicParamType); - // var exps = new List(); - // var tempRef = Expression.Variable(typeof(object)); - // foreach (var pinfo in porpertys) - // { - // var propertyInfo = type.GetProperty(pinfo.Key); - // if (propertyInfo == null) - // continue; - // var propertyName = Expression.Constant(pinfo.Key, typeof(string)); - // exps.Add(Expression.Call(dicParam, dicParamType.GetMethod("TryGetValue"), propertyName, tempRef)); - // exps.Add(Expression.Assign(Expression.MakeMemberAccess(typeParam, propertyInfo), - // Expression.Convert(tempRef, propertyInfo.PropertyType))); - // exps.Add(Expression.Assign(tempRef, Expression.Default(typeof(object)))); - // } - - // var returnTarget = Expression.Label(type); - // exps.Add(Expression.Return(returnTarget, typeParam)); - // exps.Add(Expression.Label(returnTarget, Expression.Default(type))); - // var block = Expression.Block(new[] { tempRef }, exps); - // var @delegate = Expression.Lambda(block, typeParam, dicParam).Compile(); - // return @delegate; - // }); - // var dynamicInvoke = dynamicDelegate.DynamicInvoke(istance, porpertys); - // return dynamicInvoke; - //} - - /// - /// 首字母小写 - /// - /// - /// - private string FirstCharToLower(string input) - { - if (string.IsNullOrEmpty(input)) - return input; - string str = input.First().ToString().ToLower() + input.Substring(1); - return str; - } - - /// - /// 首字母大写 - /// - /// - /// - private string FirstCharToUpper(string input) - { - if (string.IsNullOrEmpty(input)) - return input; - string str = input.First().ToString().ToUpper() + input.Substring(1); - return str; - } - - private static string Md5Encryption(string inputStr) - { - var result = string.Empty; - //32位大写 - using (var md5 = MD5.Create()) - { - var resultBytes = md5.ComputeHash(Encoding.UTF8.GetBytes(inputStr)); - result = BitConverter.ToString(resultBytes); - } - - return result; - } - - class DynamicPropertyInfo - { - public string PropertyName { get; set; } = string.Empty; - public Type PropertyType { get; set; } - public Attribute[] Attributes { get; set; } - } - } -#endif -} \ No newline at end of file