1 files changed, 29 insertions, 0 deletions
diff --git a/src/library/scala/runtime/LambdaDeserialize.java b/src/library/scala/runtime/LambdaDeserialize.java
new file mode 100644
index 0000000000..e239debf25
--- /dev/null
+++ b/src/library/scala/runtime/LambdaDeserialize.java
@@ -0,0 +1,29 @@
+package scala.runtime;
+
+
+import java.lang.invoke.*;
+import java.util.Arrays;
+import java.util.HashMap;
+
+public final class LambdaDeserialize {
+
+    private MethodHandles.Lookup lookup;
+    private final HashMap<String, MethodHandle> cache = new HashMap<>();
+    private final LambdaDeserializer$ l = LambdaDeserializer$.MODULE$;
+
+    private LambdaDeserialize(MethodHandles.Lookup lookup) {
+        this.lookup = lookup;
+    }
+
+    public Object deserializeLambda(SerializedLambda serialized) {
+        return l.deserializeLambda(lookup, cache, serialized);
+    }
+
+    public static CallSite bootstrap(MethodHandles.Lookup lookup, String invokedName,
+                                     MethodType invokedType) throws Throwable {
+        MethodType type = MethodType.fromMethodDescriptorString("(Ljava/lang/invoke/SerializedLambda;)Ljava/lang/Object;", lookup.getClass().getClassLoader());
+        MethodHandle deserializeLambda = lookup.findVirtual(LambdaDeserialize.class, "deserializeLambda", type);
+        MethodHandle exact = deserializeLambda.bindTo(new LambdaDeserialize(lookup)).asType(invokedType);
+        return new ConstantCallSite(exact);
+    }
+}