Add support for altMetafactory

classlib/src/main/java/org/teavm/classlib/impl/JCLPlugin.java

@@ -49,9 +49,14 @@ public void install(TeaVMHost host) {
 
         host.add(new ClassForNameTransformer());
         host.add(new AnnotationDependencyListener());
+
+        LambdaMetafactorySubstitutor lms = new LambdaMetafactorySubstitutor();
         host.add(new MethodReference(LambdaMetafactory.class, "metafactory", MethodHandles.Lookup.class,
                 String.class, MethodType.class, MethodType.class, MethodHandle.class, MethodType.class,
-                CallSite.class), new LambdaMetafactorySubstitutor());
+                CallSite.class), lms);
+        host.add(new MethodReference(LambdaMetafactory.class, "altMetafactory", MethodHandles.Lookup.class,
+                String.class, MethodType.class, Object[].class, CallSite.class), lms);
+
         host.add(new ScalaHacks());
 
         host.add(new NumericClassTransformer());

classlib/src/main/java/org/teavm/classlib/impl/lambda/LambdaMetafactorySubstitutor.java

@@ -34,6 +34,9 @@
 import org.teavm.model.emit.ValueEmitter;
 
 public class LambdaMetafactorySubstitutor implements BootstrapMethodSubstitutor {
+    private static final int FLAG_SERIALIZABLE = 1;
+    private static final int FLAG_MARKERS = 2;
+    private static final int FLAG_BRIDGES = 4;
     private int lambdaIndex;
 
     @Override
@@ -94,6 +97,33 @@ public ValueEmitter substitute(DynamicCallSite callSite, ProgramEmitter callerPe
 
         implementor.addMethod(worker);
 
+        // Handle altMetafactory case
+        if (callSite.getBootstrapArguments().size() > 3) {
+            int flags = callSite.getBootstrapArguments().get(3).getInt();
+
+            if ((flags & FLAG_SERIALIZABLE) != 0) {
+                implementor.getInterfaces().add("java.io.Serializable");
+            }
+
+            int bootstrapArgIndex = 4;
+            if ((flags & FLAG_MARKERS) != 0) {
+                int markerCount = callSite.getBootstrapArguments().get(bootstrapArgIndex++).getInt();
+                for (int i = 0; i < markerCount; ++i) {
+                    ValueType markerType = callSite.getBootstrapArguments().get(bootstrapArgIndex++).getValueType();
+                    implementor.getInterfaces().add(((ValueType.Object) markerType).getClassName());
+                }
+            }
+
+            if ((flags & FLAG_BRIDGES) != 0) {
+                int bridgeCount = callSite.getBootstrapArguments().get(bootstrapArgIndex++).getInt();
+                for (int i = 0; i < bridgeCount; ++i) {
+                    ValueType[] bridgeType = callSite.getBootstrapArguments().get(bootstrapArgIndex++).getMethodType();
+                    createBridge(classSource, implementor, callSite.getCalledMethod().getName(), instantiatedMethodType,
+                            bridgeType);
+                }
+            }
+        }
+
         callSite.getAgent().submitClass(implementor);
         return callerPe.construct(ctor.getOwnerName(), callSite.getArguments().toArray(new ValueEmitter[0]));
     }

core/src/main/java/org/teavm/model/InvokeDynamicInstruction.java

@@ -19,10 +19,6 @@
 import java.util.List;
 import org.teavm.model.instructions.InstructionVisitor;
 
-/**
- *
- * @author Alexey Andreev
- */
 public class InvokeDynamicInstruction extends Instruction {
     private MethodDescriptor method;
     private MethodHandle bootstrapMethod;

core/src/main/java/org/teavm/model/RuntimeConstant.java

@@ -15,10 +15,6 @@
  */
 package org.teavm.model;
 
-/**
- *
- * @author Alexey Andreev
- */
 public final class RuntimeConstant {
     public static final byte INT = 0;
     public static final byte LONG = 1;

tests/src/test/java/org/teavm/vm/LambdaTest.java

@@ -0,0 +1,46 @@
+/*
+ *  Copyright 2017 Alexey Andreev.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+package org.teavm.vm;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import java.io.Serializable;
+import java.util.function.Supplier;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.teavm.junit.TeaVMTestRunner;
+
+@RunWith(TeaVMTestRunner.class)
+public class LambdaTest {
+    @Test
+    public void lambdaWithMarkers() {
+        Supplier<String> supplier = (Supplier<String> & A) () -> "OK";
+
+        assertEquals("OK", supplier.get());
+        assertTrue("Supplier is expected to implement A", supplier instanceof A);
+    }
+
+    @Test
+    public void serializableLambda() {
+        Supplier<String> supplier = (Supplier<String> & Serializable) () -> "OK";
+
+        assertEquals("OK", supplier.get());
+        assertTrue("Supplier is expected to implement Serializable", supplier instanceof Serializable);
+    }
+
+    interface A {
+    }
+}