JVMS draft for L-world value types with support for nullability
john.r.rose at oracle.com
Thu Feb 1 14:37:10 UTC 2018
On Jan 31, 2018, at 7:38 PM, Frederic Parain <frederic.parain at oracle.com> wrote:
> http://cr.openjdk.java.net/~acorn/LWorldValueTypesjan31.pdf <http://cr.openjdk.java.net/~acorn/LWorldValueTypesjan31.pdf>
> Feedback and comments are welcome.
A couple more comments about Object as an "honorary interface":
As your document suggests, I don't think we have a real option to
make a new top type I$Object that is a proper interface. Instead,
we have to get into the habit of treating Object like an interface.
The cost of this is pretty small, I think. Mainly we have to treat
the "messy" API of Object (wait/notify/finalize) as a set of partial
functions, which can throw exceptions (or have some other empty
behavior) when applied to values.
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