如果我在反射检查FieldInfo.SetValueDirect
它看起来如下:一个方法如何只包含一个NotImplementedException并且仍然不会抛出?
C#.NET 4.0:
[CLSCompliant(false)]
public virtual void SetValueDirect(TypedReference obj, object value)
{
throw new NotSupportedException(Environment.GetResourceString("NotSupported_AbstractNonCLS"));
}
而作为IL:
.method public hidebysig newslot virtual instance void SetValueDirect(valuetype System.TypedReference obj, object 'value') cil managed
{
.custom instance void System.CLSCompliantAttribute::.ctor(bool) = { bool(false) }
.maxstack 8
L_0000: ldstr "NotSupported_AbstractNonCLS"
L_0005: call string System.Environment::GetResourceString(string)
L_000a: newobj instance void System.NotSupportedException::.ctor(string)
L_000f: throw
}
但是,如果我运行下面的代码它只是工作。
// test struct:
public struct TestFields
{
public int MaxValue;
public Guid SomeGuid; // req for MakeTypeRef, which doesn't like primitives
}
[Test]
public void SettingFieldThroughSetValueDirect()
{
TestFields testValue = new TestFields { MaxValue = 1234 };
FieldInfo info = testValue.GetType().GetField("MaxValue");
Assert.IsNotNull(info);
// TestFields.SomeGuid exists as a field
TypedReference reference = TypedReference.MakeTypedReference(
testValue,
new [] { fields.GetType().GetField("SomeGuid") });
int value = (int)info.GetValueDirect(reference,);
info.SetValueDirect(reference, 4096);
// assert that this actually worked
Assert.AreEqual(4096, fields.MaxValue);
}
没有错误发生。 GetValueDirect
也是如此。基于资源名称的猜测是,只有当代码必须是CLSCompliant时,才会抛出此错误,但方法的主体在哪里?或者换一种说法,我怎样才能反映该方法的实际情况?
Jon比平常要快,但你的结论等于他的;)。 – Abel 2012-03-29 14:37:32