| /* |
| * Copyright 2004 Sun Microsystems, Inc. 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. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| package com.sun.tools.apt.mirror; |
| |
| |
| import com.sun.tools.apt.mirror.declaration.DeclarationMaker; |
| import com.sun.tools.apt.mirror.type.TypeMaker; |
| import com.sun.tools.javac.code.*; |
| import com.sun.tools.javac.code.Symbol.CompletionFailure; |
| import com.sun.tools.javac.comp.Attr; |
| import com.sun.tools.javac.comp.Enter; |
| import com.sun.tools.javac.util.Context; |
| import com.sun.tools.javac.util.Names; |
| |
| |
| /** |
| * The environment for a run of apt. |
| */ |
| |
| public class AptEnv { |
| |
| public Names names; // javac's name table |
| public Symtab symtab; // javac's predefined symbols |
| public Types jctypes; // javac's type utilities |
| public Enter enter; // javac's enter phase |
| public Attr attr; // javac's attr phase (to evaluate |
| // constant initializers) |
| public TypeMaker typeMaker; // apt's internal type utilities |
| public DeclarationMaker declMaker; // apt's internal declaration utilities |
| |
| |
| private static final Context.Key<AptEnv> aptEnvKey = |
| new Context.Key<AptEnv>(); |
| |
| public static AptEnv instance(Context context) { |
| AptEnv instance = context.get(aptEnvKey); |
| if (instance == null) { |
| instance = new AptEnv(context); |
| } |
| return instance; |
| } |
| |
| private AptEnv(Context context) { |
| context.put(aptEnvKey, this); |
| |
| names = Names.instance(context); |
| symtab = Symtab.instance(context); |
| jctypes = Types.instance(context); |
| enter = Enter.instance(context); |
| attr = Attr.instance(context); |
| typeMaker = TypeMaker.instance(context); |
| declMaker = DeclarationMaker.instance(context); |
| } |
| |
| |
| /** |
| * Does a symbol have a given flag? Forces symbol completion. |
| */ |
| public static boolean hasFlag(Symbol sym, long flag) { |
| return (getFlags(sym) & flag) != 0; |
| } |
| |
| /** |
| * Returns a symbol's flags. Forces completion. |
| */ |
| public static long getFlags(Symbol sym) { |
| complete(sym); |
| return sym.flags(); |
| } |
| |
| /** |
| * Completes a symbol, ignoring completion failures. |
| */ |
| private static void complete(Symbol sym) { |
| while (true) { |
| try { |
| sym.complete(); |
| return; |
| } catch (CompletionFailure e) { |
| // Should never see two in a row, but loop just to be sure. |
| } |
| } |
| } |
| } |