A proposal (pre-proposal?) to add parameter groups to Java

Brian Goetz brian.goetz at oracle.com
Fri Jul 31 20:34:24 UTC 2020

> which can be simplified to (no need to declare p1 and p2)
>    void line(Point(var x1, var y1), Point(var x2, var y2)) { }
> one interesting thing is that like lambdas with functional interfaces, a record is a nominal type that can be used by inference as a structural type, so at call site, instead of writing
>    line(new Point(1, 2), new Point(3, 4))
> one can write
>    line((1, 2), (3, 4))

Indeed, just as functional interfaces are "nominal function types", 
records are "nominal tuples".  And as lambdas can be considered literals 
for functional interfaces, one could _imagine_ a similar conversion for 

But, before we close down this thread, I just want to clarify that Remi 
meant "one can write" as leaning on that imagination -- that it was 
imaginable that, in some future language, such a conversion is possible 
-- not that this is currently on the plan.

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