Wed, 11 Apr 2012 10:50:11 +0100
7154127: Inference cleanup: remove bound check analysis from visitors in Types.java
Summary: Remove bound checking rules from recursive subtype visitors in Types.java and replace with centralized bound-checking logic
Reviewed-by: jjg, dlsmith
mcimadamore@396 | 1 | /* |
ohair@554 | 2 | * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved. |
mcimadamore@396 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
mcimadamore@396 | 4 | * |
mcimadamore@396 | 5 | * This code is free software; you can redistribute it and/or modify it |
mcimadamore@396 | 6 | * under the terms of the GNU General Public License version 2 only, as |
mcimadamore@396 | 7 | * published by the Free Software Foundation. |
mcimadamore@396 | 8 | * |
mcimadamore@396 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
mcimadamore@396 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
mcimadamore@396 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
mcimadamore@396 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
mcimadamore@396 | 13 | * accompanied this code). |
mcimadamore@396 | 14 | * |
mcimadamore@396 | 15 | * You should have received a copy of the GNU General Public License version |
mcimadamore@396 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
mcimadamore@396 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
mcimadamore@396 | 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. |
mcimadamore@396 | 22 | */ |
mcimadamore@396 | 23 | |
mcimadamore@396 | 24 | /* |
mcimadamore@396 | 25 | * @test |
mcimadamore@396 | 26 | * @bug 6650759 |
mcimadamore@396 | 27 | * @summary Inference of formal type parameter (unused in formal parameters) is not performed |
mcimadamore@396 | 28 | * @compile/fail/ref=T6650759m.out T6650759m.java -XDrawDiagnostics |
mcimadamore@396 | 29 | */ |
mcimadamore@396 | 30 | |
mcimadamore@396 | 31 | import java.util.*; |
mcimadamore@396 | 32 | |
mcimadamore@396 | 33 | class T6650759m { |
mcimadamore@396 | 34 | <Z> List<? super Z> m(List<? extends List<? super Z>> ls) { |
mcimadamore@396 | 35 | return ls.get(0); |
mcimadamore@396 | 36 | } |
mcimadamore@396 | 37 | |
mcimadamore@396 | 38 | void test() { |
mcimadamore@396 | 39 | ArrayList<ArrayList<Integer>> lli = new ArrayList<ArrayList<Integer>>(); |
mcimadamore@396 | 40 | ArrayList<Integer> li = new ArrayList<Integer>(); |
mcimadamore@396 | 41 | li.add(2); |
mcimadamore@396 | 42 | lli.add(li); |
mcimadamore@396 | 43 | List<? super String> ls = m(lli); //here |
mcimadamore@396 | 44 | ls.add("crash"); |
mcimadamore@396 | 45 | Integer i = li.get(1); |
mcimadamore@396 | 46 | } |
mcimadamore@396 | 47 | } |