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* Debugging output tweaks.Paul Phillips2012-05-141-1/+1
| | | | And undeprecated Positional.
* Fix for tailcall transform/recognition bugs.Paul Phillips2012-03-111-2/+5
| | | | Closes SI-3275, SI-5455.
* A pretty severe bug in the recognition of tail ...Paul Phillips2011-01-101-2/+2
| | | | | | | | | | | | | | | | | | | | A pretty severe bug in the recognition of tail call elimination. It turns out that Tailcalls will perform "partial elimination" in situations such as: @annotation.tailrec final def f(x: Int): Int = f(f(x)) The outer call to f1 becomes a jump, but the inner call remains as it was. I implemented @tailrec under the impression that if the optimization had taken place, it had gone all the way. So this is now fixed with a direct examination of the rewritten tree. While I was in there I threw in some improved error reporting: the error positioning is now on the call which is not in tail position rather than the method declaration. Closes #4135, no review.
* Some more improvement on the error messages whe...Paul Phillips2010-07-021-0/+4
Some more improvement on the error messages when @tailrec fails. Now it gives a sensible message if the recursive target is actually a supertype of this, rather than saying the call is not in tail position. No review.