On 12/18/2009 12:22 PM, [email protected] wrote:
> While ensuring that the optimization is actually performed is very important,
> it seems to be a novelty in the JVM: to the best of my knowledge, there is no
> other way to guarantee that any optimization will actually occur.
> Is this correct ?
Tail-call optimization is not a pure optimization, as it changes the
semantics in a fundamental way: It removes stack traces, which are
part of both observable behaviour (stack traces) and the Java security
architecture. Conversely, the lack of tail-call optimization when it
is expected (or demanded by some [non-Java] language specification)
means that a program that should run in finite memory will run out of
stack.
--
--Per Bothner
[email protected] http://per.bothner.com/
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