Fri, 24 Apr 2020 03:58:51 +0100
Merge
duke@1 | 1 | /* |
ohair@554 | 2 | * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved. |
duke@1 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@1 | 4 | * |
duke@1 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@1 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@1 | 7 | * published by the Free Software Foundation. |
duke@1 | 8 | * |
duke@1 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@1 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@1 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@1 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@1 | 13 | * accompanied this code). |
duke@1 | 14 | * |
duke@1 | 15 | * You should have received a copy of the GNU General Public License version |
duke@1 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@1 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@1 | 18 | * |
ohair@554 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
ohair@554 | 20 | * or visit www.oracle.com if you need additional information or have any |
ohair@554 | 21 | * questions. |
duke@1 | 22 | */ |
duke@1 | 23 | |
duke@1 | 24 | /* |
duke@1 | 25 | * @test |
duke@1 | 26 | * @bug 4921543 5009601 |
duke@1 | 27 | * @summary boxing/unboxing versus foreach crashes javac |
duke@1 | 28 | * @author gafter |
duke@1 | 29 | * |
darcy@289 | 30 | * @compile BoxedForeach.java |
duke@1 | 31 | * @run main BoxedForeach |
duke@1 | 32 | */ |
duke@1 | 33 | |
duke@1 | 34 | import java.util.*; |
duke@1 | 35 | |
duke@1 | 36 | public class BoxedForeach { |
duke@1 | 37 | static void f(Integer[] a) { |
duke@1 | 38 | for ( int i : a ) { |
duke@1 | 39 | System.out.println(i); |
duke@1 | 40 | } |
duke@1 | 41 | } |
duke@1 | 42 | static void f(Iterable<Integer> b) { |
duke@1 | 43 | g(b); |
duke@1 | 44 | h(b); |
duke@1 | 45 | for ( int i : b ) { |
duke@1 | 46 | System.out.println(i); |
duke@1 | 47 | } |
duke@1 | 48 | for ( float i : b ) { |
duke@1 | 49 | System.out.println(i); |
duke@1 | 50 | } |
duke@1 | 51 | for ( Iterator<Integer> it = b.iterator(); it.hasNext(); ) { |
duke@1 | 52 | float i = it.next(); |
duke@1 | 53 | } |
duke@1 | 54 | } |
duke@1 | 55 | static <T extends Integer> void g(Iterable<T> b) { |
duke@1 | 56 | for ( int i : b ) { |
duke@1 | 57 | System.out.println(i); |
duke@1 | 58 | } |
duke@1 | 59 | } |
duke@1 | 60 | static void h(Iterable<? extends Integer> b) { |
duke@1 | 61 | for ( int i : b ) { |
duke@1 | 62 | System.out.println(i); |
duke@1 | 63 | } |
duke@1 | 64 | } |
duke@1 | 65 | static void f(int[] c) { |
duke@1 | 66 | for ( Integer i : c ) { |
duke@1 | 67 | System.out.println(i); |
duke@1 | 68 | } |
duke@1 | 69 | } |
duke@1 | 70 | static <E extends Enum<E>> void f(E[] values) { |
duke@1 | 71 | for ( E e : values ) { |
duke@1 | 72 | System.out.println(e); |
duke@1 | 73 | } |
duke@1 | 74 | } |
duke@1 | 75 | static int f() { |
duke@1 | 76 | for ( Foo f : foolist() ) { |
duke@1 | 77 | return f.x; |
duke@1 | 78 | } |
duke@1 | 79 | return 0; |
duke@1 | 80 | } |
duke@1 | 81 | static List<Foo> foolist() { |
duke@1 | 82 | List<Foo> l = new ArrayList<Foo>(); |
duke@1 | 83 | l.add(new Foo()); |
duke@1 | 84 | return l; |
duke@1 | 85 | } |
duke@1 | 86 | enum color { red, green, blue }; |
duke@1 | 87 | public static void main(String[] args) { |
duke@1 | 88 | Integer[] a1 = { Integer.valueOf(1), Integer.valueOf(2) }; |
duke@1 | 89 | f(a1); |
duke@1 | 90 | f(Arrays.asList(a1)); |
duke@1 | 91 | int[] a2 = { 1, 2, 3 }; |
duke@1 | 92 | f(a2); |
duke@1 | 93 | f(color.values()); |
duke@1 | 94 | f(); |
duke@1 | 95 | } |
duke@1 | 96 | } |
duke@1 | 97 | |
duke@1 | 98 | class Foo { |
duke@1 | 99 | static int n = 0; |
duke@1 | 100 | final int x; |
duke@1 | 101 | Foo() { |
duke@1 | 102 | x = n++; |
duke@1 | 103 | } |
duke@1 | 104 | } |
duke@1 | 105 | |
duke@1 | 106 | class A { |
duke@1 | 107 | class B { |
duke@1 | 108 | } |
duke@1 | 109 | java.util.List<String> l; |
duke@1 | 110 | String[] args; |
duke@1 | 111 | { |
duke@1 | 112 | for (String s1 : l) { |
duke@1 | 113 | for (String s2 : l) { |
duke@1 | 114 | B b = new B(); |
duke@1 | 115 | } |
duke@1 | 116 | } |
duke@1 | 117 | for (String s1 : args) { |
duke@1 | 118 | for (String s2 : args) { |
duke@1 | 119 | B b = new B(); |
duke@1 | 120 | } |
duke@1 | 121 | } |
duke@1 | 122 | } |
duke@1 | 123 | } |