Basic implementation of invoke / invoke-polymorphic.
Basic switch interpreter support for invoke-polymorphic. This change
allows for virtual/interface and static invokes on method handles.
Support for direct invokes (including constructors) and field
getters and setters will be added in follow up changes.
Bug: 30550796
Test: make test-art-host
Change-Id: Ieb3a991d974060d930d56467908d5c7c11d0e38e
diff --git a/runtime/method_handles.h b/runtime/method_handles.h
new file mode 100644
index 0000000..5c68a8f
--- /dev/null
+++ b/runtime/method_handles.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#ifndef ART_RUNTIME_METHOD_HANDLES_H_
+#define ART_RUNTIME_METHOD_HANDLES_H_
+
+#include <ostream>
+
+namespace art {
+
+// Defines the behaviour of a given method handle. The behaviour
+// of a handle of a given kind is identical to the dex bytecode behaviour
+// of the equivalent instruction.
+//
+// NOTE: These must be kept in sync with the constants defined in
+// java.lang.invoke.MethodHandle.
+enum MethodHandleKind {
+ kInvokeVirtual = 0,
+ kInvokeSuper,
+ kInvokeDirect,
+ kInvokeStatic,
+ kInvokeInterface,
+ kInstanceGet,
+ kInstancePut,
+ kStaticGet,
+ kStaticPut,
+ kLastValidKind = kStaticPut,
+ kLastInvokeKind = kInvokeInterface
+};
+
+// Whether the given method handle kind is some variant of an invoke.
+inline bool IsInvoke(const MethodHandleKind handle_kind) {
+ return handle_kind <= kLastInvokeKind;
+}
+
+} // namespace art
+
+#endif // ART_RUNTIME_METHOD_HANDLES_H_