Mercurial > jdk8-mips64-public > langtools / annotate
src/share/classes/com/sun/tools/javac/api/JavacScope.java@959103a6100f (annotated)
src/share/classes/com/sun/tools/javac/api/JavacScope.java
Wed, 27 Apr 2016 01:34:52 +0800
- author
- aoqi
- date
- Wed, 27 Apr 2016 01:34:52 +0800
- changeset 0
- 959103a6100f
- child 2525
- 2eb010b6cb22
- permissions
- -rw-r--r--
Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/langtools/
changeset: 2573:53ca196be1ae
tag: jdk8u25-b17
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 2006, 2008, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 4 | * |
| aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 7 | * published by the Free Software Foundation. Oracle designates this |
| aoqi@0 | 8 | * particular file as subject to the "Classpath" exception as provided |
| aoqi@0 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
| aoqi@0 | 10 | * |
| aoqi@0 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 15 | * accompanied this code). |
| aoqi@0 | 16 | * |
| aoqi@0 | 17 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 20 | * |
| aoqi@0 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 22 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 23 | * questions. |
| aoqi@0 | 24 | */ |
| aoqi@0 | 25 | |
| aoqi@0 | 26 | package com.sun.tools.javac.api; |
| aoqi@0 | 27 | |
| aoqi@0 | 28 | |
| aoqi@0 | 29 | import javax.lang.model.element.Element; |
| aoqi@0 | 30 | import javax.lang.model.element.ExecutableElement; |
| aoqi@0 | 31 | import javax.lang.model.element.TypeElement; |
| aoqi@0 | 32 | |
| aoqi@0 | 33 | import com.sun.tools.javac.comp.AttrContext; |
| aoqi@0 | 34 | import com.sun.tools.javac.comp.Env; |
| aoqi@0 | 35 | |
| aoqi@0 | 36 | |
| aoqi@0 | 37 | |
| aoqi@0 | 38 | /** |
| aoqi@0 | 39 | * Provides an implementation of Scope. |
| aoqi@0 | 40 | * |
| aoqi@0 | 41 | * <p><b>This is NOT part of any supported API. |
| aoqi@0 | 42 | * If you write code that depends on this, you do so at your own |
| aoqi@0 | 43 | * risk. This code and its internal interfaces are subject to change |
| aoqi@0 | 44 | * or deletion without notice.</b></p> |
| aoqi@0 | 45 | * |
| aoqi@0 | 46 | * @author Jonathan Gibbons; |
| aoqi@0 | 47 | */ |
| aoqi@0 | 48 | public class JavacScope implements com.sun.source.tree.Scope { |
| aoqi@0 | 49 | protected final Env<AttrContext> env; |
| aoqi@0 | 50 | |
| aoqi@0 | 51 | /** Creates a new instance of JavacScope */ |
| aoqi@0 | 52 | JavacScope(Env<AttrContext> env) { |
| aoqi@0 | 53 | env.getClass(); // null-check |
| aoqi@0 | 54 | this.env = env; |
| aoqi@0 | 55 | } |
| aoqi@0 | 56 | |
| aoqi@0 | 57 | public JavacScope getEnclosingScope() { |
| aoqi@0 | 58 | if (env.outer != null && env.outer != env) |
| aoqi@0 | 59 | return new JavacScope(env.outer); |
| aoqi@0 | 60 | else { |
| aoqi@0 | 61 | // synthesize an outermost "star-import" scope |
| aoqi@0 | 62 | return new JavacScope(env) { |
| aoqi@0 | 63 | public boolean isStarImportScope() { |
| aoqi@0 | 64 | return true; |
| aoqi@0 | 65 | } |
| aoqi@0 | 66 | public JavacScope getEnclosingScope() { |
| aoqi@0 | 67 | return null; |
| aoqi@0 | 68 | } |
| aoqi@0 | 69 | public Iterable<? extends Element> getLocalElements() { |
| aoqi@0 | 70 | return env.toplevel.starImportScope.getElements(); |
| aoqi@0 | 71 | } |
| aoqi@0 | 72 | }; |
| aoqi@0 | 73 | } |
| aoqi@0 | 74 | } |
| aoqi@0 | 75 | |
| aoqi@0 | 76 | public TypeElement getEnclosingClass() { |
| aoqi@0 | 77 | // hide the dummy class that javac uses to enclose the top level declarations |
| aoqi@0 | 78 | return (env.outer == null || env.outer == env ? null : env.enclClass.sym); |
| aoqi@0 | 79 | } |
| aoqi@0 | 80 | |
| aoqi@0 | 81 | public ExecutableElement getEnclosingMethod() { |
| aoqi@0 | 82 | return (env.enclMethod == null ? null : env.enclMethod.sym); |
| aoqi@0 | 83 | } |
| aoqi@0 | 84 | |
| aoqi@0 | 85 | public Iterable<? extends Element> getLocalElements() { |
| aoqi@0 | 86 | return env.info.getLocalElements(); |
| aoqi@0 | 87 | } |
| aoqi@0 | 88 | |
| aoqi@0 | 89 | public Env<AttrContext> getEnv() { |
| aoqi@0 | 90 | return env; |
| aoqi@0 | 91 | } |
| aoqi@0 | 92 | |
| aoqi@0 | 93 | public boolean isStarImportScope() { |
| aoqi@0 | 94 | return false; |
| aoqi@0 | 95 | } |
| aoqi@0 | 96 | |
| aoqi@0 | 97 | public boolean equals(Object other) { |
| aoqi@0 | 98 | if (other instanceof JavacScope) { |
| aoqi@0 | 99 | JavacScope s = (JavacScope) other; |
| aoqi@0 | 100 | return (env.equals(s.env) |
| aoqi@0 | 101 | && isStarImportScope() == s.isStarImportScope()); |
| aoqi@0 | 102 | } else |
| aoqi@0 | 103 | return false; |
| aoqi@0 | 104 | } |
| aoqi@0 | 105 | |
| aoqi@0 | 106 | public int hashCode() { |
| aoqi@0 | 107 | return env.hashCode() + (isStarImportScope() ? 1 : 0); |
| aoqi@0 | 108 | } |
| aoqi@0 | 109 | |
| aoqi@0 | 110 | public String toString() { |
| aoqi@0 | 111 | return "JavacScope[env=" + env + ",starImport=" + isStarImportScope() + "]"; |
| aoqi@0 | 112 | } |
| aoqi@0 | 113 | } |
