public void PassThroughConstructors()
{
{
TypeBuilder b = CreateTypeBuilder(typeof(BaseOne));
b.DefinePassThroughConstructors(c => c.Attributes | MethodAttributes.Public);
Type t = b.CreateTypeInfo().AsType();
BaseOne one1 = (BaseOne)Activator.CreateInstance(t, 5);
Assert.That(one1.CtorMessage, Is.EqualTo(".private.protected"));
BaseOne one2 = (BaseOne)Activator.CreateInstance(t, "a string");
Assert.That(one2.CtorMessage, Is.EqualTo(".private.public"));
}
{
TypeBuilder b = CreateTypeBuilder(typeof(BaseTwo));
b.DefinePassThroughConstructors(c => c.Attributes | MethodAttributes.Public);
Type t = b.CreateTypeInfo().AsType();
var ctor = t.GetConstructors()[0];
BaseTwo two = (BaseTwo)ctor.Invoke(new object[] { new int[] { 1, 2, 3, 4 } });
Assert.That(two.CtorMessage, Is.EqualTo("4"));
}
{
TypeBuilder b = CreateTypeBuilder(typeof(BaseThree));
b.DefinePassThroughConstructors(
c => c.Attributes | MethodAttributes.Public,
(ctor, attrData) => attrData.NamedArguments.Any(),
(param, attrData) => attrData.ConstructorArguments.Any());
Type t = b.CreateTypeInfo().AsType();
var theCtor = t.GetConstructors()[0];
BaseThree three = (BaseThree)theCtor.Invoke(new object[] { "s0", "s1", "s2" });
Assert.That(three.CtorMessage, Is.EqualTo("s0s1s2"));
// Only attribute defined via Named arguments are defined on the final ctor.
CollectionAssert.AreEquivalent(new string[] { "OnCtorByProperty", "OnCtorByField" }, theCtor.GetCustomAttributes <CustAttr>().Select(a => a.Name ?? a.FieldName));
// Only the one defined by constructor argument is redefined.
Assert.That(theCtor.GetParameters()[0].GetCustomAttributes <CustAttr>().Single().Name, Is.EqualTo("OnParamByParam"));
Assert.That(theCtor.GetParameters()[1].GetCustomAttributes <CustAttr>(), Is.Empty);
Assert.That(theCtor.GetParameters()[2].GetCustomAttributes <CustAttr>(), Is.Empty);
}
{
TypeBuilder b = CreateTypeBuilder(typeof(BaseThree));
b.DefinePassThroughConstructors(c => c.Attributes | MethodAttributes.Public);
Type t = b.CreateTypeInfo().AsType();
var ctor = t.GetConstructors()[0];
BaseThree three = (BaseThree)ctor.Invoke(new object[] { "s0", "s1", "s2" });
Assert.That(three.CtorMessage, Is.EqualTo("s0s1s2"));
// Everything is defined.
CollectionAssert.AreEquivalent(new string[] { "OnCtorByParam", "OnCtorByProperty", "OnCtorByField" }, ctor.GetCustomAttributes <CustAttr>().Select(a => a.Name ?? a.FieldName));
Assert.That(ctor.GetParameters()[0].GetCustomAttributes <CustAttr>().Single().Name, Is.EqualTo("OnParamByParam"));
Assert.That(ctor.GetParameters()[1].GetCustomAttributes <CustAttr>().Single().Name, Is.EqualTo("OnParamByProperty"));
Assert.That(ctor.GetParameters()[2].GetCustomAttributes <CustAttr>().Single().FieldName, Is.EqualTo("OnParamByField"));
}
}
public WithDependencies(BaseOne baseOne, BaseTwo baseTwo, BaseThree baseThree)
{
BaseOne = baseOne;
BaseTwo = baseTwo;
BaseThree = baseThree;
}
