diff options
Diffstat (limited to 'src/dotty/tools/dotc/typer/Inferencing.scala')
| -rw-r--r-- | src/dotty/tools/dotc/typer/Inferencing.scala | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/dotty/tools/dotc/typer/Inferencing.scala b/src/dotty/tools/dotc/typer/Inferencing.scala index 424575f8c..0223260a0 100644 --- a/src/dotty/tools/dotc/typer/Inferencing.scala +++ b/src/dotty/tools/dotc/typer/Inferencing.scala @@ -163,7 +163,7 @@ trait Inferencing { this: Checking => * If such a variable appears covariantly in type `tp` or does not appear at all, * approximate it by its lower bound. Otherwise, if it appears contravariantly * in type `tp` approximate it by its upper bound. - * @param ownedBy if it is different from NoSymbol, all type variables owned by + * @param ownedBy if it is different from NoSymbol, all type variables owned by * `ownedBy` qualify, independent of position. * Without that second condition, it can be that certain variables escape * interpolation, for instance when their tree was eta-lifted, so @@ -173,7 +173,7 @@ trait Inferencing { this: Checking => */ def interpolateUndetVars(tree: Tree, ownedBy: Symbol)(implicit ctx: Context): Unit = { val constraint = ctx.typerState.constraint - val qualifies = (tvar: TypeVar) => + val qualifies = (tvar: TypeVar) => (tree contains tvar.owningTree) || ownedBy.exists && tvar.owner == ownedBy def interpolate() = Stats.track("interpolateUndetVars") { val tp = tree.tpe.widen |