| /* |
| * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * @test |
| * @summary Test stepping through lambdas |
| * @author Staffan Larsen |
| * |
| * @run build TestScaffold VMConnection TargetListener TargetAdapter |
| * @run compile -g LambdaStepTest.java |
| * @run driver LambdaStepTest |
| */ |
| import com.sun.jdi.LocalVariable; |
| import com.sun.jdi.ObjectReference; |
| import com.sun.jdi.ReferenceType; |
| import com.sun.jdi.StackFrame; |
| import com.sun.jdi.StringReference; |
| import com.sun.jdi.ThreadReference; |
| import com.sun.jdi.event.BreakpointEvent; |
| import com.sun.jdi.event.StepEvent; |
| |
| /********** target program **********/ |
| |
| interface DefaultTest { |
| default void defaultMethod() { |
| String from = "default"; |
| System.out.println("Hello from " + from); |
| } |
| } |
| class LambdaStepTestTarg implements DefaultTest { |
| private void test() { |
| String from = "test"; |
| System.out.println("Hello from " + from); |
| } |
| private static void instanceTest() { |
| LambdaStepTestTarg l = new LambdaStepTestTarg(); |
| l.test(); |
| } |
| private static void lambdaTest() { |
| Runnable r = () -> { |
| String from = "lambda"; |
| System.out.println("Hello from " + from); |
| }; |
| r.run(); |
| } |
| private static void defaultTest() { |
| LambdaStepTestTarg l = new LambdaStepTestTarg(); |
| l.defaultMethod(); |
| } |
| public static void main(String[] args) { |
| instanceTest(); |
| lambdaTest(); |
| defaultTest(); |
| System.out.println("Goodbye from LambdaStepTestTarg!"); |
| } |
| } |
| |
| |
| /********** test program **********/ |
| |
| public class LambdaStepTest extends TestScaffold { |
| LambdaStepTest (String args[]) { |
| super(args); |
| } |
| |
| public static void main(String[] args) |
| throws Exception |
| { |
| new LambdaStepTest (args).startTests(); |
| } |
| |
| /********** test core **********/ |
| |
| protected void runTests() |
| throws Exception |
| { |
| // ## Normal instance method |
| |
| BreakpointEvent bpe = startTo("LambdaStepTestTarg", "instanceTest", "()V"); |
| ThreadReference thread = bpe.thread(); |
| |
| // step over allocation |
| StepEvent se = stepOverLine(thread); |
| System.out.println(se.thread().frame(0)); |
| |
| // step into test(); |
| se = stepIntoLine(thread); |
| System.out.println(se.thread().frame(0)); |
| |
| // step over variable initialization |
| se = stepOverLine(thread); |
| System.out.println(se.thread().frame(0)); |
| |
| // get value of variable "from" |
| StackFrame frame = se.thread().frame(0); |
| LocalVariable lv = frame.visibleVariableByName("from"); |
| System.out.println(lv); |
| StringReference sr = (StringReference) frame.getValue(lv); |
| if (!sr.value().equals("test")) { |
| throw new Exception("Unexpected variable value in instanceTest: "+sr.value()); |
| } |
| |
| |
| // ## Lambda method |
| |
| bpe = resumeTo("LambdaStepTestTarg", "lambdaTest", "()V"); |
| thread = bpe.thread(); |
| |
| // step over allocation |
| se = stepOverLine(thread); |
| System.out.println(se.thread().frame(0)); |
| |
| // step into run() of the lambda |
| se = stepIntoLine(thread); |
| System.out.println(se.thread().frame(0)); |
| |
| // step over variable initialization |
| se = stepOverLine(thread); |
| System.out.println(se.thread().frame(0)); |
| |
| // get value of variable "from" |
| frame = se.thread().frame(0); |
| lv = frame.visibleVariableByName("from"); |
| System.out.println(lv); |
| sr = (StringReference) frame.getValue(lv); |
| if (!sr.value().equals("lambda")) { |
| throw new Exception("Unexpected variable value in lambdaTest: "+sr.value()); |
| } |
| |
| |
| // ## Default method |
| |
| bpe = resumeTo("LambdaStepTestTarg", "defaultTest", "()V"); |
| thread = bpe.thread(); |
| |
| // step over allocation |
| se = stepOverLine(thread); |
| System.out.println(se.thread().frame(0)); |
| |
| // step into defaultMethod() |
| se = stepIntoLine(thread); |
| System.out.println(se.thread().frame(0)); |
| |
| // step over variable initialization |
| se = stepOverLine(thread); |
| System.out.println(se.thread().frame(0)); |
| |
| // get value of variable "from" |
| frame = se.thread().frame(0); |
| lv = frame.visibleVariableByName("from"); |
| System.out.println(lv); |
| sr = (StringReference) frame.getValue(lv); |
| if (!sr.value().equals("default")) { |
| throw new Exception("Unexpected variable value in lambdaTest: "+sr.value()); |
| } |
| |
| |
| /* |
| * resume the target listening for events |
| */ |
| listenUntilVMDisconnect(); |
| |
| } |
| } |