1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 import annotations.BootstrapMethod; 18 import annotations.CalledByIndy; 19 import annotations.Constant; 20 import java.lang.invoke.CallSite; 21 import java.lang.invoke.ConstantCallSite; 22 import java.lang.invoke.MethodHandle; 23 import java.lang.invoke.MethodHandles; 24 import java.lang.invoke.MethodType; 25 26 class TestDynamicBootstrapArguments extends TestBase { 27 private static int bsmCalls = 0; 28 29 static CallSite bsm( 30 MethodHandles.Lookup lookup, 31 String name, 32 MethodType methodType, 33 String otherNameComponent, 34 long nameSuffix) 35 throws Throwable { 36 bsmCalls = bsmCalls + 1; 37 Class<?> definingClass = TestDynamicBootstrapArguments.class; 38 String methodName = name + otherNameComponent + nameSuffix; 39 MethodHandle mh = lookup.findStatic(definingClass, methodName, methodType); 40 System.out.println("bsm"); 41 return new ConstantCallSite(mh); 42 } 43 44 @CalledByIndy( 45 bootstrapMethod = 46 @BootstrapMethod( 47 enclosingType = TestDynamicBootstrapArguments.class, 48 name = "bsm", 49 parameterTypes = { 50 MethodHandles.Lookup.class, 51 String.class, 52 MethodType.class, 53 String.class, 54 long.class 55 } 56 ), 57 fieldOrMethodName = "target", 58 returnType = int.class, 59 parameterTypes = {int.class, String.class, double.class}, 60 constantArgumentsForBootstrapMethod = { 61 @Constant(stringValue = "A"), 62 @Constant(longValue = 100000000l) 63 } 64 ) 65 private static int testDynamic(int i, String s, Double d) { 66 assertNotReached(); 67 return 0; 68 } 69 70 private static int targetA100000000(int i, String s, Double d) { 71 System.out.print(i); 72 System.out.print(", "); 73 System.out.print(s); 74 System.out.print(", "); 75 System.out.println(d); 76 return i; 77 } 78 79 static void testCallSites() { 80 assertEquals(0, testDynamic(0, "One", Math.PI)); 81 assertEquals(1, testDynamic(1, "Two", Math.E)); 82 assertEquals(2, testDynamic(2, "Three", 0.0)); 83 } 84 85 static void test() { 86 System.out.println("TestDynamicArguments"); 87 testCallSites(); 88 assertEquals(3, bsmCalls); 89 testCallSites(); 90 assertEquals(3, bsmCalls); 91 } 92 } 93
