Mercurial > hg > graal-compiler
view graal/com.oracle.graal.api.collections/src/com/oracle/graal/api/collections/CollectionsProvider.java @ 21408:32ca2353accf
Truffle/Instrumentation: fix NPE hazard
author | Michael Van De Vanter <michael.van.de.vanter@oracle.com> |
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date | Sun, 17 May 2015 20:47:04 -0700 |
parents | 33cedbce5b23 |
children | 05183a084a08 |
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/* * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.graal.api.collections; import java.util.*; /** * A factory for creating collections. */ public interface CollectionsProvider { /** * Creates a set that uses reference-equality in place of object-equality when comparing * entries. */ <E> Set<E> newIdentitySet(); /** * Creates a map that uses reference-equality in place of object-equality when comparing keys. */ <K, V> Map<K, V> newIdentityMap(); /** * Creates a map that uses reference-equality in place of object-equality when comparing keys. * * @param expectedMaxSize the expected maximum size of the map */ <K, V> Map<K, V> newIdentityMap(int expectedMaxSize); /** * Creates a map that uses reference-equality in place of object-equality when comparing keys. * * @param initFrom the returned map is populated with the entries in this map */ <K, V> Map<K, V> newIdentityMap(Map<K, V> initFrom); }