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Fix nullability propagation in inline class type mapping

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#KT-27096

See https://jetbrains.slack.com/archives/C06E082M6/p1537949572000100
This commit is contained in:
Dmitry Petrov
2018-09-26 12:05:09 +03:00
parent 0b23ddb947
commit ab90b2b901
20 changed files with 843 additions and 15 deletions
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compiler/testData/codegen/box/inlineClasses/kt27096_nullableReference.kt
Vendored
+26
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@@ -0,0 +1,26 @@
// !LANGUAGE: +InlineClasses
// IGNORE_BACKEND: JVM_IR
inline class Z1(val x: String?)
inline class Z2(val z: Z1)
inline class ZN(val z: Z1?)
fun wrap1(x: String): Z1? = if (x.length == 0) null else Z1(x)
fun wrap2(x: String): Z2? = if (x.length == 0) null else Z2(Z1(x))
fun wrapN(x: String): ZN? = if (x.length == 0) null else ZN(Z1(x))
fun box(): String {
if (wrap1("") != null) throw AssertionError()
if (wrap1("a") == null) throw AssertionError()
if (wrap1("a")!!.x != "a") throw AssertionError()
if (wrap2("") != null) throw AssertionError()
if (wrap2("a") == null) throw AssertionError()
if (wrap2("a")!!.z.x != "a") throw AssertionError()
if (wrapN("") != null) throw AssertionError()
if (wrapN("a") == null) throw AssertionError()
if (wrapN("a")!!.z!!.x != "a") throw AssertionError()
return "OK"
}