| /* |
| * Copyright (C) 2017 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. |
| */ |
| |
| 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; |
| |
| abstract class Super { |
| public void targetMethodTest4() { |
| System.out.println("targetMethodTest4 from Super"); |
| } |
| |
| public abstract void helperMethodTest9(); |
| } |
| |
| public class InvokeCustom extends Super implements Runnable { |
| |
| public InvokeCustom() {} |
| public InvokeCustom(int i) { |
| System.out.println("InvokeCustom.<init>(" + i + ")"); |
| } |
| |
| private static void targetMethodTest1() { |
| System.out.println("Hello World!"); |
| } |
| |
| private static void targetMethodTest2(boolean z, byte b, char c, short s, int i, float f, long l, |
| double d, String str) { |
| System.out.println(z); |
| System.out.println(b); |
| System.out.println(c); |
| System.out.println(s); |
| System.out.println(i); |
| System.out.println(f); |
| System.out.println(l); |
| System.out.println(d); |
| System.out.println(str); |
| } |
| |
| private static void targetMethodTest3() { |
| System.out.println("targetMethodTest3 from InvokeCustom"); |
| } |
| |
| @Override |
| public void targetMethodTest4() { |
| // The generated code should be calling Super.targetMethodTest4. |
| System.out.println("targetMethodTest4 from InvokeCustom (oops!)"); |
| } |
| |
| public static int targetMethodTest5(int x, int y, int total) { |
| int calculated = x + y; |
| System.out.println("targetMethodTest5 " + x + " + " + y + " = " + calculated); |
| if (calculated != total) { |
| System.out.println("Failed " + calculated + " != " + total); |
| } |
| return calculated; |
| } |
| |
| public static long targetMethodTest6(long x, long y, long total) { |
| long calculated = x + y; |
| System.out.println("targetMethodTest6 " + x + " + " + y + " = " + calculated); |
| if (calculated != total) { |
| System.out.println("Failed " + calculated + " != " + total); |
| } |
| return calculated; |
| } |
| |
| public static double targetMethodTest7(float x, float y, double product) { |
| double calculated = x * y; |
| System.out.println("targetMethodTest7 " + x + " * " + y + " = " + calculated); |
| if (calculated != product) { |
| System.out.println("Failed " + calculated + " != " + product); |
| } |
| return calculated; |
| } |
| |
| public static void targetMethodTest8(String s) { |
| System.out.println("targetMethodTest8 " + s); |
| } |
| |
| private static int staticFieldTest9 = 0; |
| |
| private static void checkStaticFieldTest9(MethodHandle getter, MethodHandle setter) |
| throws Throwable { |
| final int NEW_VALUE = 0x76543210; |
| int oldValue = (int) getter.invokeExact(); |
| setter.invokeExact(NEW_VALUE); |
| int newValue = (int) getter.invokeExact(); |
| System.out.print("checkStaticFieldTest9: old " + oldValue + " new " + newValue + |
| " expected " + NEW_VALUE + " "); |
| System.out.println((newValue == NEW_VALUE) ? "OK" : "ERROR"); |
| } |
| |
| private float fieldTest9 = 0.0f; |
| |
| private void checkFieldTest9(MethodHandle getter, MethodHandle setter) |
| throws Throwable { |
| final float NEW_VALUE = 1.99e-19f; |
| float oldValue = (float) getter.invokeExact(this); |
| setter.invokeExact(this, NEW_VALUE); |
| float newValue = (float) getter.invokeExact(this); |
| System.out.print("checkFieldTest9: old " + oldValue + " new " + newValue + |
| " expected " + NEW_VALUE + " "); |
| System.out.println((newValue == NEW_VALUE) ? "OK" : "ERROR"); |
| } |
| |
| public void helperMethodTest9() { |
| System.out.println("helperMethodTest9 in " + InvokeCustom.class); |
| } |
| |
| private static void targetMethodTest9() { |
| System.out.println("targetMethodTest9()"); |
| } |
| |
| public void run() { |
| System.out.println("run() for Test9"); |
| } |
| |
| public static CallSite bsmLookupStatic(MethodHandles.Lookup caller, String name, MethodType type) |
| throws NoSuchMethodException, IllegalAccessException { |
| System.out.println("bsmLookupStatic []"); |
| final MethodHandles.Lookup lookup = MethodHandles.lookup(); |
| final MethodHandle targetMH = lookup.findStatic(lookup.lookupClass(), name, type); |
| return new ConstantCallSite(targetMH.asType(type)); |
| } |
| |
| public static CallSite bsmLookupStaticWithExtraArgs( |
| MethodHandles.Lookup caller, String name, MethodType type, int i, long l, float f, double d) |
| throws NoSuchMethodException, IllegalAccessException { |
| System.out.println("bsmLookupStaticWithExtraArgs [" + i + ", " + l + ", " + f + ", " + d + "]"); |
| final MethodHandles.Lookup lookup = MethodHandles.lookup(); |
| final MethodHandle targetMH = lookup.findStatic(lookup.lookupClass(), name, type); |
| return new ConstantCallSite(targetMH.asType(type)); |
| } |
| |
| public static CallSite bsmCreateCallSite( |
| MethodHandles.Lookup caller, String name, MethodType type, MethodHandle mh) |
| throws Throwable { |
| System.out.println("bsmCreateCallSite [" + mh + "]"); |
| return new ConstantCallSite(mh); |
| } |
| |
| public static CallSite bsmLookupTest9(MethodHandles.Lookup caller, String name, MethodType type, |
| MethodHandle staticGetter, MethodHandle staticSetter, |
| MethodHandle fieldGetter, MethodHandle fieldSetter, |
| MethodHandle instanceInvoke, MethodHandle constructor, |
| MethodHandle interfaceInvoke) |
| throws Throwable { |
| System.out.println("bsmLookupTest9 [" + staticGetter + ", " + staticSetter + ", " + |
| fieldGetter + ", " + fieldSetter + "]"); |
| System.out.println(name + " " + type); |
| |
| // Check constant method handles passed can be invoked. |
| checkStaticFieldTest9(staticGetter, staticSetter); |
| InvokeCustom instance = new InvokeCustom(); |
| instance.checkFieldTest9(fieldGetter, fieldSetter); |
| |
| // Check virtual method. |
| instanceInvoke.invokeExact(instance); |
| |
| InvokeCustom instance2 = (InvokeCustom) constructor.invokeExact(3); |
| interfaceInvoke.invoke(instance2); |
| |
| final MethodHandles.Lookup lookup = MethodHandles.lookup(); |
| final MethodHandle targetMH = lookup.findStatic(lookup.lookupClass(), name, type); |
| return new ConstantCallSite(targetMH.asType(type)); |
| } |
| } |