Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: src/share/classes/com/sun/tools/javac/comp/CompileStates.java
src/share/classes/com/sun/tools/javac/comp/CompileStates.java
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| 1 /* | |
| 2 * Copyright (c) 2013, 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.HashMap; | |
| 29 | |
| 30 import com.sun.tools.javac.util.Context; | |
| 31 | |
| 32 /** Partial map to record which compiler phases have been executed | |
| 33 * for each compilation unit. Used for ATTR and FLOW phases. | |
| 34 * | |
| 35 * <p><b>This is NOT part of any supported API. | |
| 36 * If you write code that depends on this, you do so at your own risk. | |
| 37 * This code and its internal interfaces are subject to change or | |
| 38 * deletion without notice.</b> | |
| 39 */ | |
| 40 public class CompileStates extends HashMap<Env<AttrContext>, CompileStates.CompileState> { | |
| 41 /** The context key for the compile states. */ | |
| 42 protected static final Context.Key<CompileStates> compileStatesKey = | |
| 43 new Context.Key<CompileStates>(); | |
| 44 | |
| 45 /** Get the CompileStates instance for this context. */ | |
| 46 public static CompileStates instance(Context context) { | |
| 47 CompileStates instance = context.get(compileStatesKey); | |
| 48 if (instance == null) { | |
| 49 instance = new CompileStates(context); | |
| 50 } | |
| 51 return instance; | |
| 52 } | |
| 53 | |
| 54 /** Ordered list of compiler phases for each compilation unit. */ | |
| 55 public enum CompileState { | |
| 56 INIT(0), | |
| 57 PARSE(1), | |
| 58 ENTER(2), | |
| 59 PROCESS(3), | |
| 60 ATTR(4), | |
| 61 FLOW(5), | |
| 62 TRANSTYPES(6), | |
| 63 UNLAMBDA(7), | |
| 64 LOWER(8), | |
| 65 GENERATE(9); | |
| 66 | |
| 67 CompileState(int value) { | |
| 68 this.value = value; | |
| 69 } | |
| 70 public boolean isAfter(CompileState other) { | |
| 71 return value > other.value; | |
| 72 } | |
| 73 public static CompileState max(CompileState a, CompileState b) { | |
| 74 return a.value > b.value ? a : b; | |
| 75 } | |
| 76 private final int value; | |
| 77 }; | |
| 78 | |
| 79 private static final long serialVersionUID = 1812267524140424433L; | |
| 80 | |
| 81 protected Context context; | |
| 82 | |
| 83 public CompileStates(Context context) { | |
| 84 this.context = context; | |
| 85 context.put(compileStatesKey, this); | |
| 86 } | |
| 87 | |
| 88 public boolean isDone(Env<AttrContext> env, CompileState cs) { | |
| 89 CompileState ecs = get(env); | |
| 90 return (ecs != null) && !cs.isAfter(ecs); | |
| 91 } | |
| 92 } |
