initial commit

Extensions/FreeSql.Extensions.LazyLoading/FreeSql.Extensions.LazyLoading.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+	<PropertyGroup>
+		<TargetFrameworks>netstandard2.1;netstandard2.0;net45;net40</TargetFrameworks>
+		<GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+		<Authors>FreeSql;ncc;YeXiangQin</Authors>
+		<Description>FreeSql 扩展包，可实现【延时加载】属性.</Description>
+		<PackageProjectUrl>https://github.com/2881099/FreeSql</PackageProjectUrl>
+		<RepositoryUrl>https://github.com/2881099/FreeSql</RepositoryUrl>
+		<RepositoryType>git</RepositoryType>
+		<PackageLicenseExpression>MIT</PackageLicenseExpression>
+		<PackageTags>FreeSql;ORM</PackageTags>
+		<PackageId>$(AssemblyName)</PackageId>
+		<PackageIcon>logo.png</PackageIcon>
+		<Title>$(AssemblyName)</Title>
+		<IsPackable>true</IsPackable>
+		<GenerateAssemblyInfo>true</GenerateAssemblyInfo>
+		<Version>3.2.833</Version>
+		<PackageReadmeFile>readme.md</PackageReadmeFile>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<None Include="../../readme.md" Pack="true" PackagePath="\"/>
+		<None Include="../../logo.png" Pack="true" PackagePath="\" />
+	</ItemGroup>
+
+	<ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.1'">
+		<PackageReference Include="CS-Script.Core" Version="1.3.1" />
+	</ItemGroup>
+	<ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
+		<PackageReference Include="CS-Script.Core" Version="1.2.3" />
+	</ItemGroup>
+
+	<PropertyGroup Condition="'$(TargetFramework)' == 'netstandard2.1' or '$(TargetFramework)' == 'netstandard2.0'">
+		<DefineConstants>ns20;netstandard20</DefineConstants>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<ProjectReference Include="..\..\FreeSql\FreeSql.csproj" />
+	</ItemGroup>
+
+</Project>

Extensions/FreeSql.Extensions.LazyLoading/LazyLoadingComplier.cs

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+using System;
+using System.CodeDom.Compiler;
+using System.IO;
+using System.Reflection;
+
+namespace FreeSql.Extensions.LazyLoading
+{
+
+    public class LazyLoadingComplier
+    {
+
+#if ns20
+        //public static Assembly CompileCode(string cscode)
+        //{
+        //    Natasha.AssemblyComplier complier = new Natasha.AssemblyComplier();
+        //    //complier.Domain = DomainManagment.Random;
+        //    complier.Add(cscode);
+        //    return complier.GetAssembly();
+        //}
+
+        internal static Lazy<CSScriptLib.RoslynEvaluator> _compiler = new Lazy<CSScriptLib.RoslynEvaluator>(() =>
+        {
+            var compiler = new CSScriptLib.RoslynEvaluator();
+            compiler.DisableReferencingFromCode = false;
+            compiler
+                .ReferenceAssemblyOf<IFreeSql>()
+                .ReferenceDomainAssemblies();
+            return compiler;
+        });
+
+        public static Assembly CompileCode(string cscode)
+        {
+            return _compiler.Value.CompileCode(cscode);
+        }
+#else
+
+        public static Assembly CompileCode(string cscode)
+        {
+
+            var files = Directory.GetFiles(Directory.GetParent(Type.GetType("IFreeSql, FreeSql").Assembly.Location).FullName);
+            using (var compiler = CodeDomProvider.CreateProvider("cs"))
+            {
+                var objCompilerParameters = new CompilerParameters();
+                objCompilerParameters.ReferencedAssemblies.Add("System.dll");
+                objCompilerParameters.ReferencedAssemblies.Add("System.Core.dll");
+                objCompilerParameters.ReferencedAssemblies.Add("FreeSql.dll");
+                foreach (var dll in files)
+                {
+                    if (!dll.EndsWith(".dll", StringComparison.OrdinalIgnoreCase) &&
+                        !dll.EndsWith(".exe", StringComparison.OrdinalIgnoreCase)) continue;
+
+                    //Console.WriteLine(dll);
+                    var dllName = string.Empty;
+                    var idx = dll.LastIndexOf('/');
+                    if (idx != -1) dllName = dll.Substring(idx + 1);
+                    else
+                    {
+                        idx = dll.LastIndexOf('\\');
+                        if (idx != -1) dllName = dll.Substring(idx + 1);
+                    }
+                    if (string.IsNullOrEmpty(dllName)) continue;
+                    try
+                    {
+                        var ass = Assembly.LoadFile(dll);
+                        objCompilerParameters.ReferencedAssemblies.Add(dllName);
+                    }
+                    catch
+                    {
+
+                    }
+                }
+                objCompilerParameters.GenerateExecutable = false;
+                objCompilerParameters.GenerateInMemory = true;
+
+                CompilerResults cr = compiler.CompileAssemblyFromSource(objCompilerParameters, cscode);
+
+                if (cr.Errors.Count > 0)
+                    throw new Exception(cr.Errors[0].ErrorText);
+
+                return cr.CompiledAssembly;
+            }
+        }
+
+#endif
+    }
+}