jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javac/api/JavacScope.java@ed918a442b83

8008174: DocTree API should provide start and end positions for tree nodes
Summary: Adding DocSourcePositions to allow access to DocTree starting/ending position
Reviewed-by: jjg, darcy
Contributed-by: Ralph Benjamin Ruijs <ralphbenjamin@netbeans.org>, Jan Lahoda <jlahoda@netbeans.org>

     1 /*

     2  * Copyright (c) 2006, 2008, 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  */

    26 package com.sun.tools.javac.api;

    29 import javax.lang.model.element.Element;

    30 import javax.lang.model.element.ExecutableElement;

    31 import javax.lang.model.element.TypeElement;

    33 import com.sun.tools.javac.comp.AttrContext;

    34 import com.sun.tools.javac.comp.Env;

    38 /**

    39  * Provides an implementation of Scope.

    40  *

    41  * <p><b>This is NOT part of any supported API.

    42  * If you write code that depends on this, you do so at your own

    43  * risk.  This code and its internal interfaces are subject to change

    44  * or deletion without notice.</b></p>

    45  *

    46  * @author Jonathan Gibbons;

    47  */

    48 public class JavacScope implements com.sun.source.tree.Scope {

    49     protected final Env<AttrContext> env;

    51     /** Creates a new instance of JavacScope */

    52     JavacScope(Env<AttrContext> env) {

    53         env.getClass(); // null-check

    54         this.env = env;

    55     }

    57     public JavacScope getEnclosingScope() {

    58         if (env.outer != null && env.outer != env)

    59             return  new JavacScope(env.outer);

    60         else {

    61             // synthesize an outermost "star-import" scope

    62             return new JavacScope(env) {

    63                 public boolean isStarImportScope() {

    64                     return true;

    65                 }

    66                 public JavacScope getEnclosingScope() {

    67                     return null;

    68                 }

    69                 public Iterable<? extends Element> getLocalElements() {

    70                     return env.toplevel.starImportScope.getElements();

    71                 }

    72             };

    73         }

    74     }

    76     public TypeElement getEnclosingClass() {

    77         // hide the dummy class that javac uses to enclose the top level declarations

    78         return (env.outer == null || env.outer == env ? null : env.enclClass.sym);

    79     }

    81     public ExecutableElement getEnclosingMethod() {

    82         return (env.enclMethod == null ? null : env.enclMethod.sym);

    83     }

    85     public Iterable<? extends Element> getLocalElements() {

    86         return env.info.getLocalElements();

    87     }

    89     public Env<AttrContext> getEnv() {

    90         return env;

    91     }

    93     public boolean isStarImportScope() {

    94         return false;

    95     }

    97     public boolean equals(Object other) {

    98         if (other instanceof JavacScope) {

    99             JavacScope s = (JavacScope) other;

   100             return (env.equals(s.env)

   101                 && isStarImportScope() == s.isStarImportScope());

   102         } else

   103             return false;

   104     }

   106     public int hashCode() {

   107         return env.hashCode() + (isStarImportScope() ? 1 : 0);

   108     }

   110     public String toString() {

   111         return "JavacScope[env=" + env + ",starImport=" + isStarImportScope() + "]";

   112     }

   113 }

Mercurial > jdk8-mips64-public > langtools / file revision

src/share/classes/com/sun/tools/javac/api/JavacScope.java@ed918a442b83

src/share/classes/com/sun/tools/javac/api/JavacScope.java