diff options
Diffstat (limited to 'src/compiler/scala/tools/nsc/transform/Delambdafy.scala')
-rw-r--r-- | src/compiler/scala/tools/nsc/transform/Delambdafy.scala | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/src/compiler/scala/tools/nsc/transform/Delambdafy.scala b/src/compiler/scala/tools/nsc/transform/Delambdafy.scala index 88837842fa..855e53710b 100644 --- a/src/compiler/scala/tools/nsc/transform/Delambdafy.scala +++ b/src/compiler/scala/tools/nsc/transform/Delambdafy.scala @@ -28,7 +28,7 @@ abstract class Delambdafy extends Transform with TypingTransformers with ast.Tre /** the following two members override abstract members in Transform */ val phaseName: String = "delambdafy" - final case class LambdaMetaFactoryCapable(target: Symbol, arity: Int, functionalInterface: Symbol, sam: Symbol) + final case class LambdaMetaFactoryCapable(target: Symbol, arity: Int, functionalInterface: Symbol, sam: Symbol, isSerializable: Boolean, addScalaSerializableMarker: Boolean) /** * Get the symbol of the target lifted lambda body method from a function. I.e. if @@ -95,6 +95,8 @@ abstract class Delambdafy extends Transform with TypingTransformers with ast.Tre // no need for adaptation when the implemented sam is of a specialized built-in function type val lambdaTarget = if (isSpecialized) target else createBoxingBridgeMethodIfNeeded(fun, target, functionalInterface, sam) + val isSerializable = samUserDefined == NoSymbol || samUserDefined.owner.isNonBottomSubClass(definitions.JavaSerializableClass) + val addScalaSerializableMarker = samUserDefined == NoSymbol // The backend needs to know the target of the lambda and the functional interface in order // to emit the invokedynamic instruction. We pass this information as tree attachment. @@ -102,7 +104,7 @@ abstract class Delambdafy extends Transform with TypingTransformers with ast.Tre // see https://docs.oracle.com/javase/8/docs/api/java/lang/invoke/LambdaMetafactory.html // instantiatedMethodType is derived from lambdaTarget's signature // samMethodType is derived from samOf(functionalInterface)'s signature - apply.updateAttachment(LambdaMetaFactoryCapable(lambdaTarget, fun.vparams.length, functionalInterface, sam)) + apply.updateAttachment(LambdaMetaFactoryCapable(lambdaTarget, fun.vparams.length, functionalInterface, sam, isSerializable, addScalaSerializableMarker)) apply } |