Files
kotlin-fork/compiler/testData/diagnostics/tests/inference/findViewById.fir.kt
T
Denis.Zharkov 81414d758d K2: repeat K1 representation for flexible type parameters
This commit changes the behavior of KT-59138 effectively declining it in 2.0.
However, we plan to implement KT-59138 behavior under a feature
flag in 2.0 (see KT-66447), and switch this feature on version 2.x.

Also, this commit implements the LC resolution about postponing
KT-57014 change. We don't have KT-57014 described behavior in 2.0 anymore.
However, we plan to implement a deprecation warning here, see KT-65578.

After this commit, 6 diagnostic tests become incorrectly broken:
- 5 tests from PurelyImplementedCollection group
- a test platformTypes/nullableTypeArgument.kt

This commit also breaks currently fixed-in-k2 KT-50134
(it is fixed again in the following commits),
as well as KT-58933 (it will remain not fixed till we enable KT-59138
behavior again).

#KT-65596 In Progress
#KT-57014 In Progress
#KT-58933 Submitted
2024-03-11 13:38:05 +00:00

59 lines
1.3 KiB
Kotlin
Vendored

// !LANGUAGE: +ExpectedTypeFromCast
// !DIAGNOSTICS: -UNUSED_VARIABLE -DEBUG_INFO_LEAKING_THIS
// FILE: a/View.java
package a;
public class View {
}
// FILE: a/Test.java
package a;
public class Test {
public <T extends View> T findViewById(int id);
}
// FILE: 1.kt
package a
class X : View()
class Y<T> : View()
val xExplicit: X = Test().findViewById(0)
val xCast = Test().findViewById(0) as X
val xCastExplicitType = Test().findViewById<X>(0) as X
val xSafeCastExplicitType = Test().findViewById<X>(0) as? X
val yExplicit: Y<String> = Test().findViewById(0)
val yCast = Test().findViewById(0) as Y<String>
class TestChild : Test() {
val xExplicit: X = findViewById(0)
val xCast = findViewById(0) as X
val yExplicit: Y<String> = findViewById(0)
val yCast = findViewById(0) as Y<String>
}
fun test(t: Test) {
val xExplicit: X = t.findViewById(0)
val xCast = t.findViewById(0) as X
val yExplicit: Y<String> = t.findViewById(0)
val yCast = t.findViewById(0) as Y<String>
}
fun test2(t: Test?) {
val xSafeCallSafeCast = t?.findViewById(0) <!USELESS_CAST!>as? X<!>
val xSafeCallSafeCastExplicitType = t?.findViewById<X>(0) <!USELESS_CAST!>as? X<!>
val xSafeCallCast = t?.findViewById(0) as X
val xSafeCallCastExplicitType = t<!UNNECESSARY_SAFE_CALL!>?.<!>findViewById<X>(0) as X
}