On Wednesday, 6 August 2014 at 12:41:16 UTC, Artur Skawina via
Digitalmars-d wrote:
The compiler can /assume/ that the condition never fails.
Hence, it does
not need to generate any code to check that the assumption is
valid.
Exactly, worse example using a coroutine:
«
label:
…
while(running) { // forevah!
… yield …
}
…
assume(anything local not assigned below label) // reachable, but
never executed
»
is equivalent to:
«
assume(anything local not assigned below label) // optimize based
on this
label:
…
while(running) {
… yield …
}
»
Woops?
