public void Convert_WithDelegate()
{
var type = DynamicAssemblyManager.DefineMapperType("MyClassType");
var field = type.DefineField("Lambda", typeof(Func<int>), FieldAttributes.Static | FieldAttributes.Public);
Func<int> getValue = () => 10;
var source = AstBuildHelper.CallMethod(field.FieldType.GetMethod("Invoke", new Type[0]),
AstBuildHelper.ReadFieldRA(null, type.GetField("Lambda")), new List<IAstStackItem>());
var writer = AstBuildHelper.WriteMember(typeof(DestinationObject).GetProperty("Destination"),
AstBuildHelper.ReadArgumentRA(1, typeof(DestinationObject)), source);
var convertMethod = type.DefineMethod("ConvertLambda",
MethodAttributes.Public | MethodAttributes.Static,
null, new Type[]{typeof(SourceObject), typeof(DestinationObject)});
convertMethod.DefineParameter(1, ParameterAttributes.None, "source");
convertMethod.DefineParameter(2, ParameterAttributes.None, "destination");
var context = new CompilationContext(convertMethod.GetILGenerator());
writer.Compile(context);
new AstReturnVoid().Compile(context);
type.CreateType();
DynamicAssemblyManager.SaveAssembly();
var destinationObj = new DestinationObject();
object dynamicType = Activator.CreateInstance(type, false);
type.GetField("Lambda").SetValue(dynamicType, getValue);
type.InvokeMember("ConvertLambda", BindingFlags.InvokeMethod, null, dynamicType, new object[]{null, destinationObj});
Assert.AreEqual(10, destinationObj.Destination);
}
public void Convert_Method()
{
var source = AstBuildHelper.ReadMemberRV(AstBuildHelper.ReadArgumentRA(0, typeof(SourceObject)),
typeof(SourceObject).GetProperty("Source"));
var writer = AstBuildHelper.WriteMember(typeof(DestinationObject).GetProperty("Destination"),
AstBuildHelper.ReadArgumentRA(1, typeof(DestinationObject)), source);
var type = DynamicAssemblyManager.DefineMapperType("MyClassType");
var convertMethod = type.DefineMethod("Convert",
MethodAttributes.Public | MethodAttributes.Static,
null, new Type[]{typeof(SourceObject), typeof(DestinationObject)});
convertMethod.DefineParameter(1, ParameterAttributes.None, "source");
convertMethod.DefineParameter(2, ParameterAttributes.None, "destination");
var context = new CompilationContext(convertMethod.GetILGenerator());
writer.Compile(context);
new AstReturnVoid().Compile(context);
type.CreateType();
DynamicAssemblyManager.SaveAssembly();
var sourceObj = new SourceObject{Source = 10};
var destinationObj = new DestinationObject();
object dynamicType = Activator.CreateInstance(type, false);
type.InvokeMember("Convert", BindingFlags.InvokeMethod, null, dynamicType, new object[]{sourceObj, destinationObj});
Assert.AreEqual(sourceObj.Source, destinationObj.Destination);
}
public void Test_DynamicAssemblyManager()
{
try
{
DynamicAssemblyManager.SaveAssembly();
}
catch (Exception e)
{
string message = e.Message;
if (message == ".net standard 2.0 不支持assemblyBuilder.Save 方法")
{
Assert.Pass();
}
else
{
Assert.Fail();
}
}
}
public void Create_IfNull()
{
var type = DynamicAssemblyManager.DefineMapperType("MyClassType");
var convertMethod = type.DefineMethod("Create_IfNull", MethodAttributes.Public, null,
new []{typeof(SourceObject), typeof(DestinationObject), typeof(IResourceMapper<object>), typeof(object)});
convertMethod.DefineParameter(1, ParameterAttributes.None, "source");
convertMethod.DefineParameter(2, ParameterAttributes.None, "destination");
convertMethod.DefineParameter(3, ParameterAttributes.None, "mapper");
convertMethod.DefineParameter(4, ParameterAttributes.None, "context");
var context = new CompilationContext(convertMethod.GetILGenerator());
new AstWriteArgument(1, typeof(DestinationObject), new AstIfNull(
(IAstRef)AstBuildHelper.ReadArgumentRA(1, typeof(DestinationObject)),
new AstNewObject(typeof(DestinationObject), new IAstStackItem[0])))
.Compile(context);
new AstReturnVoid().Compile(context);
type.CreateType();
DynamicAssemblyManager.SaveAssembly();
}