1 files changed, 9 insertions, 0 deletions
diff --git a/src/dotty/tools/dotc/core/tasty/TreeUnpickler.scala b/src/dotty/tools/dotc/core/tasty/TreeUnpickler.scala
index 2d230c630..6f0596ac0 100644
--- a/src/dotty/tools/dotc/core/tasty/TreeUnpickler.scala
+++ b/src/dotty/tools/dotc/core/tasty/TreeUnpickler.scala
@@ -287,6 +287,15 @@ class TreeUnpickler(reader: TastyReader, tastyName: TastyName.Table) {
               val sym = ctx.newSymbol(ctx.owner, readName().toTypeName, BindDefinedType, readType())
               registerSym(start, sym)
               TypeRef.withFixedSym(NoPrefix, sym.name, sym)
+            case LAMBDAtype =>
+              val (rawNames, paramReader) = readNamesSkipParams[TypeName]
+              val (variances, paramNames) = rawNames
+                .map(name => (prefixToVariance(name.head), name.tail.asTypeName)).unzip
+              val result = TypeLambda(paramNames, variances)(
+                pt => registeringType(pt, paramReader.readParamTypes[TypeBounds](end)),
+                pt => readType())
+              goto(end)
+              result
             case POLYtype =>
               val (names, paramReader) = readNamesSkipParams[TypeName]
               val result = PolyType(names)(