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| author | Jason Zaugg <jzaugg@gmail.com> | 2014-02-07 11:52:55 +0100 |
|---|---|---|
| committer | Adriaan Moors <adriaan.moors@typesafe.com> | 2014-02-12 18:05:00 -0800 |
| commit | f62e280825422c1e64c2427bc5958869662701ca (patch) | |
| tree | f61e5c455851ee50f2210a898c15d6437724a3d6 /test/files/neg/t8244b.check | |
| parent | 9c4a6e3ed7624892f46948c1c0fb57d7d5b3346e (diff) | |
| download | scala-f62e280825422c1e64c2427bc5958869662701ca.tar.gz scala-f62e280825422c1e64c2427bc5958869662701ca.tar.bz2 scala-f62e280825422c1e64c2427bc5958869662701ca.zip | |
SI-8244 Fix raw type regression under separate compilation
In #1901, handling of raw types encountered in signatures during class
file parsing was changed to work in the same manner as
`classExistentialType`, by using
`existentialAbstraction(cls.tparms, cls.tpe_*)`
But this never creates fresh existential symbols, and just sticks
the class type parameters it `quantified`:
scala> trait T[A <: String]
defined trait T
scala> val cls = typeOf[T[_]].typeSymbol
cls = trait T#101864
scala> cls.typeParams
res0 = List(type A#101865)
scala> cls.tpe_*
res1 = T#101864[A#101865]
scala> classExistentialType(cls)
res3 = T#101864[_ <: String#7209]
scala> val ExistentialType(quantified, result) = res3
List(type A#101865)
In the enclosed test case, this class type parameter was substituted
during `typeOf[X] memberType sym`, which led us unsoundly thinking
that `Raw[_]` was `Raw[X]`.
I've added a TODO comment to review the other usages of
`classExistentialType`.
Test variations include joint and separate compilation, and the
corresponding Scala-only code. All fail with type errors now,
as we expect. I've also added a distillation of a bootstrap
error that failed when I forgot to wrap the `existentialType`.
Diffstat (limited to 'test/files/neg/t8244b.check')
| -rw-r--r-- | test/files/neg/t8244b.check | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/test/files/neg/t8244b.check b/test/files/neg/t8244b.check new file mode 100644 index 0000000000..f6cbf99eb5 --- /dev/null +++ b/test/files/neg/t8244b.check @@ -0,0 +1,4 @@ +t8244b.scala:15: error: value exxx is not a member of _$1 + raw.t.exxx + ^ +one error found |