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11a96ee8c8
Java nullability annotations may generate types that currently are not denotable in Kotlin:
class Java {
void <F> foo(@NotNull F f) {}
}
Type of given value parameter should be not nullable under any substitution:
String/String?/String! because of annotation contract.
NB: Currently there is no full analogues for such types in pure kotlin
44 lines
960 B
Kotlin
Vendored
44 lines
960 B
Kotlin
Vendored
// !DIAGNOSTICS: -UNUSED_VARIABLE -UNUSED_PARAMETER
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// FILE: A.java
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import android.support.annotation.*;
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public class A<T> {
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@Nullable public String field = null;
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@Nullable
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public String foo(@NonNull String x, @Nullable CharSequence y) {
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return "";
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}
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@NonNull
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public String bar() {
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return "";
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}
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@Nullable
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public T baz(@NonNull T x) { return x; }
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}
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// FILE: main.kt
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fun main(a: A<String>, a1: A<String?>) {
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a.foo("", null)?.length
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a.foo("", null)<!UNSAFE_CALL!>.<!>length
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a.foo(<!NULL_FOR_NONNULL_TYPE!>null<!>, "")<!UNSAFE_CALL!>.<!>length
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a.bar().length
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a.bar()<!UNNECESSARY_NOT_NULL_ASSERTION!>!!<!>.length
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a.field?.length
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a.field<!UNSAFE_CALL!>.<!>length
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a.baz("")<!UNSAFE_CALL!>.<!>length
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a.baz("")?.length
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a.baz(<!NULL_FOR_NONNULL_TYPE!>null<!>)<!UNSAFE_CALL!>.<!>length
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a1.baz("")!!.length
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a1.baz(<!NULL_FOR_NONNULL_TYPE!>null<!>)!!.length
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}
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