[英]Reflection.Emit create property
How can I create Property1 using reflection? 如何使用反射创建Property1?
public IProp Property1
{
get
{
return new TestClass(TestMethod);
}
}
private void TestMethod()
{
...
}
I'm trying 我正在努力
var propertyBuilder = typeBuilder.DefineProperty("Property1",
PropertyAttributes.None, typeof(IProp), Type.EmptyTypes);
propertyBuilder.SetGetMethod(GenerateGetter(typeBuilder, testMethodInfo));
MethodBuilder GenerateGetter(TypeBuilder typeBuilder, MethodInfo TestMethod)
{
var getterBuilder = typeBuilder.DefineMethod(TestMethod.Name,
METHOD_ATTRIBUTES, TestMethod.ReturnType, Type.EmptyTypes);
var actionCtor = typeof(Action).GetConstructors().Single();
var testClassCtor = typeof(TestClass).GetConstructor(new[] { typeof(Action) });
var il = getterBuilder.GetILGenerator();
il.Emit(OpCodes.Ldarg_0);
il.Emit(OpCodes.Ldftn, TestMethod);
il.Emit(OpCodes.Newobj, actionCtor);
il.Emit(OpCodes.Newobj, testClassCtor);
il.Emit(OpCodes.Ret);
return getterBuilder;
}
But I have System.Reflection.TargetException (Object does not match target type). 但是我有System.Reflection.TargetException(对象与目标类型不匹配)。 I think I have error because my IL code is bad.
我想我有错误,因为我的IL代码不好。
I replaced 我更换了
var getterBuilder = typeBuilder.DefineMethod(TestMethod.Name,
METHOD_ATTRIBUTES, TestMethod.ReturnType, Type.EmptyTypes);
to 至
var getterBuilder = typeBuilder.DefineMethod(TestMethod.Name,
METHOD_ATTRIBUTES, typeof(IProp), Type.EmptyTypes);
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