content: /*
   * Copyright (c) 1999, 2015, Oracle and/or its affiliates. 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.  Oracle designates this
   * particular file as subject to the "Classpath" exception as provided
   * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   * or visit www.oracle.com if you need additional information or have any
   * questions.
   */
  
  package openjdk.tools.sjavac.comp;
  
  import java.util.Collection;
  import java.util.HashMap;
  import java.util.Map;
  
  import jdkx.lang.model.element.Element;
  import jdkx.tools.JavaFileObject;
  
  import openjdk.tools.javac.code.Symbol.ClassSymbol;
  import openjdk.tools.javac.util.Context;
  import openjdk.tools.javac.util.Log;
  import openjdk.tools.sjavac.pubapi.PubApi;
  
  /**
   * Utility class containing public API information.
   *
   *  <p><b>This is NOT part of any supported API.
   *  If you write code that depends on this, you do so at your own risk.
   *  This code and its internal interfaces are subject to change or
   *  deletion without notice.</b>
   */
  public class PubAPIs {
      protected static final Context.Key<PubAPIs> pubApisKey = new Context.Key<>();
  
      // The log to be used for error reporting.
      protected Log log;
  
      // Map from a class name to its public api.
      // Will the Name encode the module in the future?
      // If not, this will have to change to map from Module+Name to public api.
      protected Map<ClassSymbol, PubApi> publicApiPerClass = new HashMap<>();
  
      public static PubAPIs instance(Context context) {
          PubAPIs instance = context.get(pubApisKey);
          if (instance == null)
              instance = new PubAPIs(context);
          return instance;
      }
  
      private PubAPIs(Context context) {
          context.put(pubApisKey, this);
          log = Log.instance(context);
      }
  
      /**
       * Convert the map from class names to their pubapi to a map
       * from package names to their pubapi.
       */
      public Map<String, PubApi> getPubapis(Collection<JavaFileObject> explicitJFOs, boolean explicits) {
  
          // Maps ":java.lang" to a package level pub api (with only types on top level)
          Map<String, PubApi> result = new HashMap<>();
          for (ClassSymbol cs : publicApiPerClass.keySet()) {
  
              boolean amongExplicits = explicitJFOs.contains(cs.sourcefile);
              if (explicits != amongExplicits)
                  continue;
  
              String pkg = ":" + cs.packge().fullname;
              PubApi currentPubApi = result.getOrDefault(pkg, new PubApi());
              result.put(pkg, PubApi.mergeTypes(currentPubApi, publicApiPerClass.get(cs)));
          }
  
          return result;
      }
  
      /**
       * Visit the api of a class and construct a pubapi and
       * store it into the pubapi_perclass map.
       */
      @SuppressWarnings("deprecation")
      public void visitPubapi(Element e) {
  
          // Skip anonymous classes for now
          if (e == null)
              return;
  
          PubapiVisitor v = new PubapiVisitor();
          v.visit(e);
          publicApiPerClass.put((ClassSymbol) e, v.getCollectedPubApi());
      }
  }
  