Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: src/share/classes/com/sun/tools/javac/comp/TypeEnvs.java
src/share/classes/com/sun/tools/javac/comp/TypeEnvs.java
- changeset 2425
- 76b61848c9a4
- parent 0
- 959103a6100f
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| 2424:7e97c65c373c | 2425:76b61848c9a4 |
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| 1 /* | |
| 2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. | |
| 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. Oracle designates this | |
| 8 * particular file as subject to the "Classpath" exception as provided | |
| 9 * by Oracle in the LICENSE file that accompanied this code. | |
| 10 * | |
| 11 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 * version 2 for more details (a copy is included in the LICENSE file that | |
| 15 * accompanied this code). | |
| 16 * | |
| 17 * You should have received a copy of the GNU General Public License version | |
| 18 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 20 * | |
| 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 22 * or visit www.oracle.com if you need additional information or have any | |
| 23 * questions. | |
| 24 */ | |
| 25 | |
| 26 package com.sun.tools.javac.comp; | |
| 27 | |
| 28 import java.util.Collection; | |
| 29 import java.util.HashMap; | |
| 30 import com.sun.tools.javac.code.Symbol.TypeSymbol; | |
| 31 import com.sun.tools.javac.util.Context; | |
| 32 | |
| 33 /** This class contains the type environments used by Enter, MemberEnter, | |
| 34 * Attr, DeferredAttr, and Lower. | |
| 35 * | |
| 36 * <p><b>This is NOT part of any supported API. | |
| 37 * If you write code that depends on this, you do so at your own risk. | |
| 38 * This code and its internal interfaces are subject to change or | |
| 39 * deletion without notice.</b> | |
| 40 */ | |
| 41 class TypeEnvs { | |
| 42 private static final long serialVersionUID = 571524752489954631L; | |
| 43 | |
| 44 protected static final Context.Key<TypeEnvs> typeEnvsKey = new Context.Key<>(); | |
| 45 public static TypeEnvs instance(Context context) { | |
| 46 TypeEnvs instance = context.get(typeEnvsKey); | |
| 47 if (instance == null) | |
| 48 instance = new TypeEnvs(context); | |
| 49 return instance; | |
| 50 } | |
| 51 | |
| 52 private HashMap<TypeSymbol,Env<AttrContext>> map; | |
| 53 protected TypeEnvs(Context context) { | |
| 54 map = new HashMap<>(); | |
| 55 context.put(typeEnvsKey, this); | |
| 56 } | |
| 57 | |
| 58 Env<AttrContext> get(TypeSymbol sym) { return map.get(sym); } | |
| 59 Env<AttrContext> put(TypeSymbol sym, Env<AttrContext> env) { return map.put(sym, env); } | |
| 60 Env<AttrContext> remove(TypeSymbol sym) { return map.remove(sym); } | |
| 61 Collection<Env<AttrContext>> values() { return map.values(); } | |
| 62 void clear() { map.clear(); } | |
| 63 } |
