Thu, 30 Jul 2009 10:29:53 +0100
6827648: Extremely slow compilation time for visitor pattern code + generics
Summary: Javac unnecessarily recomputates type-substitutions multiple times
Reviewed-by: jjg
jjg@309 | 1 | /* |
jjg@309 | 2 | * Copyright 2008 Sun Microsystems, Inc. All Rights Reserved. |
jjg@309 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
jjg@309 | 4 | * |
jjg@309 | 5 | * This code is free software; you can redistribute it and/or modify it |
jjg@309 | 6 | * under the terms of the GNU General Public License version 2 only, as |
jjg@309 | 7 | * published by the Free Software Foundation. |
jjg@309 | 8 | * |
jjg@309 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
jjg@309 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
jjg@309 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
jjg@309 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
jjg@309 | 13 | * accompanied this code). |
jjg@309 | 14 | * |
jjg@309 | 15 | * You should have received a copy of the GNU General Public License version |
jjg@309 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
jjg@309 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
jjg@309 | 18 | * |
jjg@309 | 19 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
jjg@309 | 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
jjg@309 | 21 | * have any questions. |
jjg@309 | 22 | */ |
jjg@309 | 23 | |
jjg@309 | 24 | /* |
jjg@309 | 25 | * @test |
jjg@309 | 26 | * @bug 6843077 |
jjg@309 | 27 | * @summary check that type annotations may appear on all type parameter |
jjg@309 | 28 | * @author Mahmood Ali |
jjg@309 | 29 | * @compile -source 1.7 TypeParameterTarget.java |
jjg@309 | 30 | */ |
jjg@309 | 31 | |
jjg@309 | 32 | import java.lang.annotation.Target; |
jjg@309 | 33 | import java.lang.annotation.ElementType; |
jjg@309 | 34 | |
jjg@309 | 35 | class TypeUseTarget<@A K extends Object> { |
jjg@309 | 36 | String[] field; |
jjg@309 | 37 | |
jjg@309 | 38 | <@A K, @A V> String genericMethod(K k) { return null; } |
jjg@309 | 39 | } |
jjg@309 | 40 | |
jjg@309 | 41 | interface MyInterface { } |
jjg@309 | 42 | |
jjg@309 | 43 | @interface MyAnnotation { } |
jjg@309 | 44 | |
jjg@309 | 45 | @Target(ElementType.TYPE_PARAMETER) |
jjg@309 | 46 | @interface A { } |