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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/t8177b.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/t8177b.scala')
-rw-r--r-- | tests/untried/pos/t8177b.scala | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tests/untried/pos/t8177b.scala b/tests/untried/pos/t8177b.scala new file mode 100644 index 000000000..82f41b615 --- /dev/null +++ b/tests/untried/pos/t8177b.scala @@ -0,0 +1,13 @@ +// exercise coevolveSym: SingleType with an underlying RefinedType, via a type alias +trait Thing { type A } +object IntThing extends Thing { type A = Int } +object ThingHolder { type Alias[AIn] = Thing { type A = AIn } } + +// The following erroneously failed with error: method f overrides nothing. +// because asSeenFrom produced a typeref of the shape T'#A where A referred to a symbol defined in a T of times past +// More precisely, the TypeRef case of TypeMap's mapOver correctly modified prefix +// from having an underlying type of { type A = Ain } to { type A = Int }, with a new symbol for A (now with info Int), +// but the symbol in the outer type ref wasn't co-evolved (so it still referred to the { type A = AIn } underlying the old prefix) +// coEvolveSym used to only look at prefixes that were directly RefinedTypes, but they could also be SingleTypes with an underlying RefinedType +class View[AIn](val in: ThingHolder.Alias[AIn]) { def f(p: in.A): in.A = p } +class SubView extends View[Int](IntThing) { override def f(p: in.A): in.A = p } |