diff options
Diffstat (limited to 'test/files/neg/t4691_exhaust_extractor.scala')
-rw-r--r-- | test/files/neg/t4691_exhaust_extractor.scala | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/test/files/neg/t4691_exhaust_extractor.scala b/test/files/neg/t4691_exhaust_extractor.scala new file mode 100644 index 0000000000..c68c33d654 --- /dev/null +++ b/test/files/neg/t4691_exhaust_extractor.scala @@ -0,0 +1,33 @@ +sealed trait Foo +class Bar1 extends Foo +class Bar2 extends Foo +class Bar3 extends Foo + +// these extractors are known to always succeed as they return a Some +object Baz1 { + def unapply(x: Bar1): Some[Int] = Some(1) +} +object Baz2 { + def unapply(x: Bar2): Some[Int] = Some(2) +} + + +object Test { + // warning: missing Bar3 + def f1(x: Foo) = x match { + case _: Bar1 => 1 + case _: Bar2 => 2 + } + + // warning: missing Bar3 + def f2(x: Foo) = x match { + case _: Bar1 => 1 + case Baz2(x) => x + } + + // warning: missing Bar3 + def f3(x: Foo) = x match { + case Baz1(x) => x + case Baz2(x) => x + } +}
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