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-rw-r--r--src/compiler/scala/tools/nsc/ast/Trees.scala3
-rw-r--r--test/files/pos/t8369a.check0
-rw-r--r--test/files/pos/t8369a.scala5
-rw-r--r--test/files/pos/t8369b.check0
-rw-r--r--test/files/pos/t8369b.scala18
5 files changed, 25 insertions, 1 deletions
diff --git a/src/compiler/scala/tools/nsc/ast/Trees.scala b/src/compiler/scala/tools/nsc/ast/Trees.scala
index 9ca06427e8..3652f51153 100644
--- a/src/compiler/scala/tools/nsc/ast/Trees.scala
+++ b/src/compiler/scala/tools/nsc/ast/Trees.scala
@@ -240,6 +240,7 @@ trait Trees extends scala.reflect.internal.Trees { self: Global =>
registerLocal(sym.moduleClass)
registerLocal(sym.companionClass)
registerLocal(sym.companionModule)
+ registerLocal(sym.deSkolemize)
sym match {
case sym: TermSymbol => registerLocal(sym.referenced)
case _ => ;
@@ -309,7 +310,7 @@ trait Trees extends scala.reflect.internal.Trees { self: Global =>
// if we move these trees into lexical contexts different from their original locations.
if (dupl.hasSymbol) {
val sym = dupl.symbol
- val vetoScope = !brutally && !(locals contains sym)
+ val vetoScope = !brutally && !(locals contains sym) && !(locals contains sym.deSkolemize)
val vetoThis = dupl.isInstanceOf[This] && sym.isPackageClass
if (!(vetoScope || vetoThis)) dupl.symbol = NoSymbol
}
diff --git a/test/files/pos/t8369a.check b/test/files/pos/t8369a.check
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/test/files/pos/t8369a.check
diff --git a/test/files/pos/t8369a.scala b/test/files/pos/t8369a.scala
new file mode 100644
index 0000000000..0596fdaf74
--- /dev/null
+++ b/test/files/pos/t8369a.scala
@@ -0,0 +1,5 @@
+object Bug {
+ trait Sys[S]
+ def test[S <: Sys[S]] = read[S]()
+ def read[S <: Sys[S]](baz: Any = 0): Some[S] = ???
+} \ No newline at end of file
diff --git a/test/files/pos/t8369b.check b/test/files/pos/t8369b.check
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/test/files/pos/t8369b.check
diff --git a/test/files/pos/t8369b.scala b/test/files/pos/t8369b.scala
new file mode 100644
index 0000000000..8145911db1
--- /dev/null
+++ b/test/files/pos/t8369b.scala
@@ -0,0 +1,18 @@
+object Bug {
+ trait Sys[S] {
+ type Tx
+ }
+
+ trait Baz[-Tx]
+
+ trait Foo[S <: Sys[S]] {
+ def bar: Bar[S] = Bar.read[S]()
+ }
+
+ object Bar {
+ object NoBaz extends Baz[Any]
+
+ def read[S <: Sys[S]](baz: Baz[S#Tx] = NoBaz): Bar[S] = ???
+ }
+ trait Bar[S <: Sys[S]]
+} \ No newline at end of file