blob: 76fed75313afc7f8ce1fe5c6b10b5fd280ea32f7 [file] [log] [blame]
// Copyright (c) 2017, the R8 project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
package invokecustom;
import java.lang.invoke.CallSite;
import java.lang.invoke.ConstantCallSite;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
class ArgumentType {
}
class ReturnType {
}
interface I {
default ReturnType targetMethodTest4(ArgumentType arg) {
System.out.println("I.targetMethodTest4");
return new ReturnType();
}
}
class Middle implements I {
}
class Sub extends Middle {
}
interface I2 {
default ReturnType targetMethodTest5(ArgumentType arg) {
System.out.println("I2.targetMethodTest5");
return new ReturnType();
}
}
class Impl implements I2 {
@Override
public ReturnType targetMethodTest5(ArgumentType arg) {
System.out.println("Impl.targetMethodTest5");
return new ReturnType();
}
}
public class InvokeCustom {
private static String staticField1 = "StaticField1";
private static void targetMethodTest1() {
System.out.println("Hello World!");
}
private static void targetMethodTest2(MethodHandle mhInvokeStatic, MethodHandle mhGetStatic)
throws Throwable {
mhInvokeStatic.invokeExact();
System.out.println(mhGetStatic.invoke());
}
private static void targetMethodTest3(MethodType mt)
throws Throwable {
System.out.println("MethodType: " + mt.toString());
}
public static CallSite bsmLookupStatic(MethodHandles.Lookup caller, String name, MethodType type)
throws NoSuchMethodException, IllegalAccessException {
final MethodHandles.Lookup lookup = MethodHandles.lookup();
final MethodHandle targetMH = lookup.findStatic(lookup.lookupClass(), name, type);
return new ConstantCallSite(targetMH.asType(type));
}
public static void doInvokeSubWithArg(MethodHandle handle) throws Throwable {
handle.invoke(new Sub(), new ArgumentType());
}
public static void doInvokeExactImplWithArg(MethodHandle handle) throws Throwable {
ReturnType result = (ReturnType) handle.invokeExact(new Impl(), new ArgumentType());
}
}