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| author | Martin Odersky <odersky@gmail.com> | 2014-05-05 18:34:59 +0200 |
|---|---|---|
| committer | Samuel Gruetter <samuel.gruetter@epfl.ch> | 2014-05-20 13:38:48 +0200 |
| commit | 82c4db686d07ae8e91f157f5c8b55a1a76917941 (patch) | |
| tree | 3024867516bdc571987207296046fe5bcd3ca566 /tests/pos/t1786-cycle.scala | |
| parent | 94ceb9895a539b05fd81c8abe040c276178b5507 (diff) | |
| download | dotty-82c4db686d07ae8e91f157f5c8b55a1a76917941.tar.gz dotty-82c4db686d07ae8e91f157f5c8b55a1a76917941.tar.bz2 dotty-82c4db686d07ae8e91f157f5c8b55a1a76917941.zip | |
Pos tests t17xx - t19xx
Diffstat (limited to 'tests/pos/t1786-cycle.scala')
| -rw-r--r-- | tests/pos/t1786-cycle.scala | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/tests/pos/t1786-cycle.scala b/tests/pos/t1786-cycle.scala new file mode 100644 index 000000000..9de149fbc --- /dev/null +++ b/tests/pos/t1786-cycle.scala @@ -0,0 +1,57 @@ +trait GenTraversableLike[+A, +Repr] extends Any + +object O { + (null: Any) match { + case _: LongTraversableLike[_] => + } +} + +trait LongTraversable extends LongTraversableLike[LongTraversable] + +trait LongTraversableLike[+Repr <: LongTraversableLike[Repr]] extends GenTraversableLike[Any, Repr] + +/* +% scalac-hash v2.11.0-M8 test/files/pos/t1786-cycle.scala +[warn] v2.11.0-M8 failed, using closest available +test/files/pos/t1786-cycle.scala:11: error: illegal cyclic reference involving trait LongTraversableLike +trait LongTraversableLike[+Repr <: LongTraversableLike[Repr]] extends GenTraversableLike[Any, Repr] + ^ +one error found + +Okay again after SI-1786 was reverted. + + +|-- object O BYVALmode-EXPRmode (site: package <empty>) +| |-- super EXPRmode-POLYmode-QUALmode (silent: <init> in O) +| | |-- this EXPRmode (silent: <init> in O) +| | | \-> O.type +| | \-> O.type +| |-- (null: Any) match { case (_: LongTraversableLike[(_ @ <em... BYVALmode-EXPRmode (site: value <local O> in O) +| | |-- (null: Any) BYVALmode-EXPRmode (site: value <local O> in O) +| | | |-- Any TYPEmode (site: value <local O> in O) +| | | | \-> Any +| | | |-- null : pt=Any EXPRmode (site: value <local O> in O) +| | | | \-> Null(null) +| | | \-> Any +| | |-- (_: LongTraversableLike[(_ @ <empty>)]) : pt=Any PATTERNmode (site: value <local O> in O) enrichment only +| | | |-- LongTraversableLike[(_ @ <empty>)] TYPEPATmode-TYPEmode (site: value <local O> in O) enrichment only +| | | | |-- <: LongTraversableLike[Repr] TYPEmode (site: type Repr in <empty>) +| | | | | |-- LongTraversableLike[Repr] TYPEmode (site: type Repr in <empty>) +| | | | | | |-- Repr NOmode (site: type Repr in <empty>) +| | | | | | | \-> Repr +| | | | | | \-> LongTraversableLike[Repr] +| | | | | [adapt] <: LongTraversableLike[Repr] is now a TypeTree( <: LongTraversableLike[Repr]) +| | | | | \-> <: LongTraversableLike[Repr] +| | | | |-- (_ @ <empty>) TYPEPATmode-TYPEmode (site: value <local O> in O) enrichment only +| | | | | \-> _ +| | | | |-- GenTraversableLike FUNmode-TYPEmode (site: trait LongTraversableLike) +| | | | | \-> GenTraversableLike +| | | | |-- GenTraversableLike[Any, Repr] TYPEmode (site: trait LongTraversableLike) +| | | | | |-- Any TYPEmode (site: trait LongTraversableLike) +| | | | | | \-> Any +| | | | | |-- Repr TYPEmode (site: trait LongTraversableLike) +| | | | | | \-> Repr +| | | | | caught scala.reflect.internal.Symbols$CyclicReference: illegal cyclic reference involving trait LongTraversableLike: while typing GenTraversableLike[Any, Repr] +test/files/pos/t1786-cycle.scala:11: error: illegal cyclic reference involving trait LongTraversableLike +trait LongTraversableLike[+Repr <: LongTraversableLike[Repr]] extends GenT +*/ |