PROPOSAL: Return 'this'
abies at adres.pl
Wed Mar 25 15:42:43 PDT 2009
I think that you are putting two separate proposals here:
1) Having 'silent' exit from method and parameterless return equivalent
to 'return this' if method return type is non-void
2) Introducing kind of auto-covariant return type, which resolves to
given class and accepts only 'this' returns
I don't particularly like point 1 - it will save some typing, but has
certain kind of magic I would prefer to keep out of java. Point 2 is
nice for builders, unfortunately it cannot be used for anything else
other than chain calls - for example, clone method could not be written
using this functionality (as you could write return new A() in A class
and not redefine it in B).
I don't understand Compatibility forward: Only jars. I don't see a way
to have such code verified in existing versions of java.
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