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author | Samuel Gruetter <samuel.gruetter@epfl.ch> | 2014-03-12 22:44:33 +0100 |
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committer | Samuel Gruetter <samuel.gruetter@epfl.ch> | 2014-03-12 22:44:33 +0100 |
commit | 9ef5f6817688f814a3450126aa7383b0928e80a0 (patch) | |
tree | 5727a2f7f7fd665cefdb312af2785c692f04377c /tests/untried/pos/hk-infer.scala | |
parent | 194be919664447631ba55446eb4874979c908d27 (diff) | |
download | dotty-9ef5f6817688f814a3450126aa7383b0928e80a0.tar.gz dotty-9ef5f6817688f814a3450126aa7383b0928e80a0.tar.bz2 dotty-9ef5f6817688f814a3450126aa7383b0928e80a0.zip |
add tests from scala/test/files/{pos,neg}
with explicit Unit return type
Diffstat (limited to 'tests/untried/pos/hk-infer.scala')
-rw-r--r-- | tests/untried/pos/hk-infer.scala | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/tests/untried/pos/hk-infer.scala b/tests/untried/pos/hk-infer.scala new file mode 100644 index 000000000..30e347640 --- /dev/null +++ b/tests/untried/pos/hk-infer.scala @@ -0,0 +1,37 @@ +object Basis { + final case class X[T](t: T) + val x = Seq(X(32)) + val y = Seq(X(true)) + val x1 = Seq(X("asdf")) + val x2 = Seq(X('d')) +} +import Basis._ + +object DoesWork { + // Doesn'tWork + // def f1 = x ++ y ++ x1 ++ x2 + + def f2 = List(x, y, x1, x2).flatten +} + +// Testing the not giving of explicit Booper[M] arguments. +object ShouldWorkHK { + class Booper[M[_]](xs: Seq[M[_]]) extends collection.generic.SeqForwarder[M[_]] { + def underlying = xs + def BOOP(ys: Seq[M[_]]) = new Booper(xs ++ ys) + } + implicit def mkBoop[M[_]](xs: Seq[M[_]]) = new Booper(xs) + + def f1 = x BOOP y BOOP x1 BOOP x2 +} + +object DoesWorkHK { + class Booper[M[_]](xs: Seq[M[_]]) extends collection.generic.SeqForwarder[M[_]] { + def underlying = xs + def BOOP(ys: Seq[M[_]]) = new Booper[M](xs ++ ys) + } + implicit def mkBoop[M[_]](xs: Seq[M[_]]) = new Booper[M](xs) + + def f1 = x BOOP y BOOP x1 BOOP x2 +} + |