1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
// Test case for issue #1032:
// https://github.com/typetools/checker-framework/issues/1032
import java.util.stream.Stream;
import org.checkerframework.checker.nullness.qual.*;
class Issue1032 {
@SuppressWarnings("nullness")
static @NonNull String castStringToNonNull(@Nullable String arg) {
return (@NonNull String) arg;
}
Stream<@NonNull String> mapStringCast1(Stream<@Nullable String> arg) {
return arg.map(Issue1032::castStringToNonNull);
}
@SuppressWarnings("nullness")
static <T> @NonNull T castTToNonNull(@Nullable T arg) {
return (@NonNull T) arg;
}
Stream<@NonNull String> mapStringCast2(Stream<@Nullable String> arg) {
return arg.map(Issue1032::<String>castTToNonNull);
}
<T> Stream<@NonNull T> mapTCast(Stream<@Nullable T> arg) {
// TODO: false postive
// :: error: (return.type.incompatible)
return arg.map(Issue1032::<T>castTToNonNull);
}
}
|
