azalea/kotlin-fork
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[FIR] Fix exhaustiveness check in case of sealed subclass

Browse Source 
The problem appear because check was performed only on direct children
of sealed class. To fix this, heritage tree is built and used in check

#KT-38989 Fixed
This commit is contained in:
Ivan Kylchik
2020-07-06 17:20:02 +03:00
parent 40cd30f7f6
commit 989e4293a3
5 changed files with 220 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files
compiler/fir/analysis-tests/testData/resolve/exhaustiveness_sealedSubClass.txt
Vendored
+116
View File
@@ -0,0 +1,116 @@
FILE: exhaustiveness_sealedSubClass.kt
public sealed class A : R|kotlin/Any| {
private constructor(): R|A| {
super<R|kotlin/Any|>()
}
}
public sealed class B : R|A| {
private constructor(): R|B| {
super<R|A|>()
}
}
public final class C : R|A| {
public constructor(): R|C| {
super<R|A|>()
}
}
public sealed class D : R|B| {
private constructor(): R|D| {
super<R|B|>()
}
}
public sealed class E : R|B| {
private constructor(): R|E| {
super<R|B|>()
}
}
public final fun test_1(e: R|A|): R|kotlin/Unit| {
lval a: R|kotlin/Int| = when (R|<local>/e|) {
($subj$ is R|C|) -> {
Int(1)
}
($subj$ is R|D|) -> {
Int(2)
}
($subj$ is R|E|) -> {
Int(3)
}
}
.R|kotlin/Int.plus|(Int(0))
lval b: R|kotlin/Int| = when (R|<local>/e|) {
($subj$ is R|B|) -> {
Int(1)
}
($subj$ is R|C|) -> {
Int(2)
}
}
.R|kotlin/Int.plus|(Int(0))
lval c: R|kotlin/Int| = when (R|<local>/e|) {
($subj$ is R|B|) -> {
Int(1)
}
($subj$ is R|C|) -> {
Int(2)
}
($subj$ is R|E|) -> {
Int(3)
}
($subj$ is R|D|) -> {
Int(4)
}
}
.R|kotlin/Int.plus|(Int(0))
lval d: R|kotlin/Int| = when (R|<local>/e|) {
($subj$ is R|E|) -> {
Int(1)
}
($subj$ is R|A|) -> {
Int(2)
}
}
.R|kotlin/Int.plus|(Int(0))
}
public final fun test_2(e: R|A|): R|kotlin/Unit| {
lval a: <ERROR TYPE REF: Unresolved name: plus> = when (R|<local>/e|) {
($subj$ is R|D|) -> {
Int(1)
}
($subj$ is R|E|) -> {
Int(2)
}
}
.<Unresolved name: plus>#(Int(0))
lval b: <ERROR TYPE REF: Unresolved name: plus> = when (R|<local>/e|) {
($subj$ is R|B|) -> {
Int(1)
}
($subj$ is R|D|) -> {
Int(2)
}
($subj$ is R|E|) -> {
Int(3)
}
}
.<Unresolved name: plus>#(Int(0))
lval c: <ERROR TYPE REF: Unresolved name: plus> = when (R|<local>/e|) {
($subj$ is R|B|) -> {
Int(1)
}
($subj$ is R|D|) -> {
Int(2)
}
}
.<Unresolved name: plus>#(Int(0))
lval d: <ERROR TYPE REF: Unresolved name: plus> = when (R|<local>/e|) {
($subj$ is R|C|) -> {
Int(1)
}
}
.<Unresolved name: plus>#(Int(0))
}