test/tools/javac/scope/RemoveSymbolTest.java

Wed, 14 Nov 2018 10:18:25 -0800

author
diazhou
date
Wed, 14 Nov 2018 10:18:25 -0800
changeset 3762
7909abb85562
parent 2812
9ec429ab0e7e
permissions
-rw-r--r--

Added tag jdk8u201-b04 for changeset a7f48b9dfb82

sadayapalam@2812 1 /*
sadayapalam@2812 2 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
sadayapalam@2812 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
sadayapalam@2812 4 *
sadayapalam@2812 5 * This code is free software; you can redistribute it and/or modify it
sadayapalam@2812 6 * under the terms of the GNU General Public License version 2 only, as
sadayapalam@2812 7 * published by the Free Software Foundation.
sadayapalam@2812 8 *
sadayapalam@2812 9 * This code is distributed in the hope that it will be useful, but WITHOUT
sadayapalam@2812 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
sadayapalam@2812 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
sadayapalam@2812 12 * version 2 for more details (a copy is included in the LICENSE file that
sadayapalam@2812 13 * accompanied this code).
sadayapalam@2812 14 *
sadayapalam@2812 15 * You should have received a copy of the GNU General Public License version
sadayapalam@2812 16 * 2 along with this work; if not, write to the Free Software Foundation,
sadayapalam@2812 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
sadayapalam@2812 18 *
sadayapalam@2812 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
sadayapalam@2812 20 * or visit www.oracle.com if you need additional information or have any
sadayapalam@2812 21 * questions.
sadayapalam@2812 22 */
sadayapalam@2812 23
sadayapalam@2812 24 /*
sadayapalam@2812 25 * @test
sadayapalam@2812 26 * @bug 8080842
sadayapalam@2812 27 * @summary Ensure Scope impl can cope with remove() when a field and method share the name.
sadayapalam@2812 28 * @run main RemoveSymbolTest
sadayapalam@2812 29 */
sadayapalam@2812 30
sadayapalam@2812 31 import java.util.Iterator;
sadayapalam@2812 32 import java.util.LinkedList;
sadayapalam@2812 33
sadayapalam@2812 34 public class RemoveSymbolTest<W> implements Iterable<W> {
sadayapalam@2812 35 static class Widget {
sadayapalam@2812 36 private String name;
sadayapalam@2812 37 Widget(String s) { name = s; }
sadayapalam@2812 38 @Override public String toString() { return name; }
sadayapalam@2812 39 }
sadayapalam@2812 40
sadayapalam@2812 41 private LinkedList<W> data;
sadayapalam@2812 42 // Instantiate an Iterable instance using a Lambda expression.
sadayapalam@2812 43 // Causes ClassFormatError if a local variable of type Widget is named after one of the methods.
sadayapalam@2812 44 private final Iterable<W> myIterator1 = () -> new Iterator<W>() {
sadayapalam@2812 45 private W hasNext = null;
sadayapalam@2812 46 private int index = 0;
sadayapalam@2812 47 @Override public boolean hasNext() { return index < data.size(); }
sadayapalam@2812 48 @Override public W next() { return data.get(index++); }
sadayapalam@2812 49 };
sadayapalam@2812 50
sadayapalam@2812 51 // Instantiate an Iterable instance using an anonymous class.
sadayapalam@2812 52 // Always works fine regardless of the name of the local variable.
sadayapalam@2812 53 private final Iterable<W> myIterator2 =
sadayapalam@2812 54 new Iterable<W>() {
sadayapalam@2812 55 @Override
sadayapalam@2812 56 public Iterator<W> iterator() {
sadayapalam@2812 57 return new Iterator<W>() {
sadayapalam@2812 58 private W hasNext = null;
sadayapalam@2812 59 private int index = 0;
sadayapalam@2812 60 @Override public boolean hasNext() { return index < data.size(); }
sadayapalam@2812 61 @Override public W next() { return data.get(index++); }
sadayapalam@2812 62 };
sadayapalam@2812 63 }
sadayapalam@2812 64 };
sadayapalam@2812 65 public RemoveSymbolTest() { data = new LinkedList<>(); }
sadayapalam@2812 66 public void add(W e) { data.add(e); }
sadayapalam@2812 67 @Override public String toString() { return data.toString(); }
sadayapalam@2812 68 @Override public Iterator<W> iterator() { return myIterator1.iterator(); }
sadayapalam@2812 69 public static void main(String[] args) {
sadayapalam@2812 70 RemoveSymbolTest<Widget> widgets = new RemoveSymbolTest<>();
sadayapalam@2812 71 widgets.add(new Widget("W1"));
sadayapalam@2812 72 widgets.add(new Widget("W2"));
sadayapalam@2812 73 widgets.add(new Widget("W3"));
sadayapalam@2812 74 System.out.println(".foreach() call: ");
sadayapalam@2812 75 widgets.forEach(w -> System.out.println(w + " "));
sadayapalam@2812 76 }
sadayapalam@2812 77 }

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