Generate for-in-range loop as counter loop when possible

If an upper bound is a compile-time constant != Int.MAX_VALUE,
we can generate 'for (i in x..N)' as 'for (i in x until N+1)'.
This commit is contained in:
Dmitry Petrov
2017-07-26 15:25:16 +03:00
parent 7450899b87
commit b867c46f72
9 changed files with 114 additions and 1 deletions
@@ -0,0 +1,12 @@
const val M = Int.MAX_VALUE
fun box(): String {
var step = 0
for (i in M .. M) {
++step
if (step > 1) throw AssertionError("Should be executed once")
}
if (step != 1) throw AssertionError("Should be executed once")
return "OK"
}