PROPOSAL: Method and Field Literals
Neal Gafter
neal at gafter.com
Wed Mar 11 17:23:24 PDT 2009
This was the best we could do given the generic type system. I don't
think there is anything to be done about it now, particularly not in
the context of this proposal.
On Wed, Mar 11, 2009 at 5:13 PM, Roel Spilker <r.spilker at gmail.com> wrote:
> Another possible problem about the generified Field and Method literals is
> that there is no good support for the built-in types.
>
> class Foo {
> int bar;
>
> Field<Integer> barField = Foo#bar;
> }
>
> This seems a bit strange, even though it seems barField.set(foo,
> Integer.valueOf(1)) would work just fine, just as int value =
> barField.get(foo);
>
> However barField.set(foo, null) does not give a compiler error, but would
> fail. Currently, the javadoc suggests it would throw an
> IllegalArgumentException instead of a NPE. The only way to distinguish an
> Integer field from an int field is to check barField.getType() and compare
> it to int.class.
>
>
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