mirror of
https://github.com/jlengrand/kotlin.git
synced 2026-05-09 08:31:29 +00:00
f6cf434650
Effectively, the following when structure:
when (s) {
s1, s2 -> e1,
s3 -> e2,
s4 -> e3,
...
else -> e
}
is implemented as:
when (s.hashCode()) {
h1 -> {
if (s == s1)
e1
else if (s == s2)
e1
else if (s == s3)
e2
else
e
}
h2 -> if (s == s3) e2 else e,
...
else -> e
}
where s1.hashCode() == s2.hashCode() == s3.hashCode() == h1,
s4.hashCode() == h2.
A tableswitch or lookupswitch is used for the hash code lookup.
Change-Id: I087bf623dbb4a41d3cc64399a1b42342a50757a6
20 lines
372 B
Kotlin
Vendored
20 lines
372 B
Kotlin
Vendored
// IGNORE_BACKEND: JVM
|
|
import kotlin.test.assertEquals
|
|
|
|
fun foo(x : String) : String {
|
|
assert("abz]".hashCode() == "aby|".hashCode())
|
|
|
|
when (x) {
|
|
"abz]" -> return "abz"
|
|
"ghi" -> return "ghi"
|
|
"aby|" -> return "aby"
|
|
"abz]" -> return "fail"
|
|
"uvw" -> return "uvw"
|
|
}
|
|
|
|
return "other"
|
|
}
|
|
|
|
// 1 LOOKUPSWITCH
|
|
// 0 LDC "fail"
|