test/tools/javac/boxing/BoxedForeach.java

Thu, 31 Aug 2017 15:17:03 +0800

author
aoqi
date
Thu, 31 Aug 2017 15:17:03 +0800
changeset 2525
2eb010b6cb22
parent 554
9d9f26857129
parent 0
959103a6100f
permissions
-rw-r--r--

merge

aoqi@0 1 /*
aoqi@0 2 * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved.
aoqi@0 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0 4 *
aoqi@0 5 * This code is free software; you can redistribute it and/or modify it
aoqi@0 6 * under the terms of the GNU General Public License version 2 only, as
aoqi@0 7 * published by the Free Software Foundation.
aoqi@0 8 *
aoqi@0 9 * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0 12 * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0 13 * accompanied this code).
aoqi@0 14 *
aoqi@0 15 * You should have received a copy of the GNU General Public License version
aoqi@0 16 * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0 18 *
aoqi@0 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0 20 * or visit www.oracle.com if you need additional information or have any
aoqi@0 21 * questions.
aoqi@0 22 */
aoqi@0 23
aoqi@0 24 /*
aoqi@0 25 * @test
aoqi@0 26 * @bug 4921543 5009601
aoqi@0 27 * @summary boxing/unboxing versus foreach crashes javac
aoqi@0 28 * @author gafter
aoqi@0 29 *
aoqi@0 30 * @compile BoxedForeach.java
aoqi@0 31 * @run main BoxedForeach
aoqi@0 32 */
aoqi@0 33
aoqi@0 34 import java.util.*;
aoqi@0 35
aoqi@0 36 public class BoxedForeach {
aoqi@0 37 static void f(Integer[] a) {
aoqi@0 38 for ( int i : a ) {
aoqi@0 39 System.out.println(i);
aoqi@0 40 }
aoqi@0 41 }
aoqi@0 42 static void f(Iterable<Integer> b) {
aoqi@0 43 g(b);
aoqi@0 44 h(b);
aoqi@0 45 for ( int i : b ) {
aoqi@0 46 System.out.println(i);
aoqi@0 47 }
aoqi@0 48 for ( float i : b ) {
aoqi@0 49 System.out.println(i);
aoqi@0 50 }
aoqi@0 51 for ( Iterator<Integer> it = b.iterator(); it.hasNext(); ) {
aoqi@0 52 float i = it.next();
aoqi@0 53 }
aoqi@0 54 }
aoqi@0 55 static <T extends Integer> void g(Iterable<T> b) {
aoqi@0 56 for ( int i : b ) {
aoqi@0 57 System.out.println(i);
aoqi@0 58 }
aoqi@0 59 }
aoqi@0 60 static void h(Iterable<? extends Integer> b) {
aoqi@0 61 for ( int i : b ) {
aoqi@0 62 System.out.println(i);
aoqi@0 63 }
aoqi@0 64 }
aoqi@0 65 static void f(int[] c) {
aoqi@0 66 for ( Integer i : c ) {
aoqi@0 67 System.out.println(i);
aoqi@0 68 }
aoqi@0 69 }
aoqi@0 70 static <E extends Enum<E>> void f(E[] values) {
aoqi@0 71 for ( E e : values ) {
aoqi@0 72 System.out.println(e);
aoqi@0 73 }
aoqi@0 74 }
aoqi@0 75 static int f() {
aoqi@0 76 for ( Foo f : foolist() ) {
aoqi@0 77 return f.x;
aoqi@0 78 }
aoqi@0 79 return 0;
aoqi@0 80 }
aoqi@0 81 static List<Foo> foolist() {
aoqi@0 82 List<Foo> l = new ArrayList<Foo>();
aoqi@0 83 l.add(new Foo());
aoqi@0 84 return l;
aoqi@0 85 }
aoqi@0 86 enum color { red, green, blue };
aoqi@0 87 public static void main(String[] args) {
aoqi@0 88 Integer[] a1 = { Integer.valueOf(1), Integer.valueOf(2) };
aoqi@0 89 f(a1);
aoqi@0 90 f(Arrays.asList(a1));
aoqi@0 91 int[] a2 = { 1, 2, 3 };
aoqi@0 92 f(a2);
aoqi@0 93 f(color.values());
aoqi@0 94 f();
aoqi@0 95 }
aoqi@0 96 }
aoqi@0 97
aoqi@0 98 class Foo {
aoqi@0 99 static int n = 0;
aoqi@0 100 final int x;
aoqi@0 101 Foo() {
aoqi@0 102 x = n++;
aoqi@0 103 }
aoqi@0 104 }
aoqi@0 105
aoqi@0 106 class A {
aoqi@0 107 class B {
aoqi@0 108 }
aoqi@0 109 java.util.List<String> l;
aoqi@0 110 String[] args;
aoqi@0 111 {
aoqi@0 112 for (String s1 : l) {
aoqi@0 113 for (String s2 : l) {
aoqi@0 114 B b = new B();
aoqi@0 115 }
aoqi@0 116 }
aoqi@0 117 for (String s1 : args) {
aoqi@0 118 for (String s2 : args) {
aoqi@0 119 B b = new B();
aoqi@0 120 }
aoqi@0 121 }
aoqi@0 122 }
aoqi@0 123 }

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