On Aug 19, 2009, at 1:27 PM, Helmut Eller wrote: > Is it possible to efficiently check the argument count and in case > of a > mismatch to call an error handler without unwinding the stack?
You can build this sort of thing on top of the primitives supplied by JSR 292, but it doesn't need to be wired into the JVM. And, no, such a feature would not be free; it would add significant overheads to every method handle call. Using exceptions the way the JVM does keeps hot paths clean. Any kind of "back up, coerce, and try again" logic would require fast path code to preserve state for slow paths, which translates to register pressure even if the feature is never used. It's always easier on the optimizer if there is only one way forward. -- John _______________________________________________ mlvm-dev mailing list mlvm-dev@openjdk.java.net http://mail.openjdk.java.net/mailman/listinfo/mlvm-dev
