jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/sjavac/comp/Dependencies.java@2620c953e9fe (annotated)

src/share/classes/com/sun/tools/sjavac/comp/Dependencies.java@2620c953e9fe (annotated)

src/share/classes/com/sun/tools/sjavac/comp/Dependencies.java

Mon, 18 Feb 2013 14:33:25 +0000

author: vromero
date: Mon, 18 Feb 2013 14:33:25 +0000
changeset 1588: 2620c953e9fe
parent 1504: 22e417cdddee
child 1648: a03c4a86ea2b
permissions: -rw-r--r--

6563143: javac should issue a warning for overriding equals without hashCode
Reviewed-by: jjg, mcimadamore

 /*
  * Copyright (c) 1999, 2013, 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 com.sun.tools.sjavac.comp;
 import javax.lang.model.element.Element;
 import java.util.Arrays;
 import java.util.Comparator;
 import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Map;
 import java.util.Set;
 import com.sun.tools.javac.code.Symbol.ClassSymbol;
 import com.sun.tools.javac.util.Context;
 import com.sun.tools.javac.util.Log;
 import com.sun.tools.javac.util.Name;
 /** Utility class containing dependency information between packages
  *  and the pubapi for a package.
  *
  * <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></p>
  */
 public class Dependencies {
     protected static final Context.Key<Dependencies> dependenciesKey =
         new Context.Key<Dependencies>();
     // The log to be used for error reporting.
     protected Log log;
     // Map from package name to packages that the package depends upon.
     protected Map<Name,Set<Name>> deps;
     // This is the set of all packages that are supplied
     // through the java files at the command line.
     protected Set<Name> explicitPackages;
     // Map from a package 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<Name,StringBuffer> publicApiPerClass;
     public static Dependencies instance(Context context) {
         Dependencies instance = context.get(dependenciesKey);
         if (instance == null)
             instance = new Dependencies(context);
         return instance;
     }
     private Dependencies(Context context) {
         context.put(dependenciesKey, this);
         log = Log.instance(context);
     }
     public void reset()
     {
         deps = new HashMap<Name, Set<Name>>();
         explicitPackages = new HashSet<Name>();
         publicApiPerClass = new HashMap<Name,StringBuffer>();
     }
     /**
      * Fetch the set of dependencies that are relevant to the compile
      * that has just been performed. I.e. we are only interested in
      * dependencies for classes that were explicitly compiled.
      * @return
      */
     public Map<String,Set<String>> getDependencies() {
         Map<String,Set<String>> new_deps = new HashMap<String,Set<String>>();
         if (explicitPackages == null) return new_deps;
         for (Name pkg : explicitPackages) {
             Set<Name> set = deps.get(pkg);
             if (set != null) {
                 Set<String> new_set = new_deps.get(pkg.toString());
                 if (new_set == null) {
                     new_set = new HashSet<String>();
                     // Modules beware....
                     new_deps.put(":"+pkg.toString(), new_set);
                 }
                 for (Name d : set) {
                     new_set.add(":"+d.toString());
                 }
             }
         }
         return new_deps;
     }
     class CompareNames implements Comparator<Name> {
          public int compare(Name a, Name b) {
              return a.toString().compareTo(b.toString());
          }
     }
     /**
      * Convert the map from class names to their pubapi to a map
      * from package names to their pubapi (which is the sorted concatenation
      * of all the class pubapis)
      */
     public Map<String,String> getPubapis() {
         Map<String,String> publicApiPerPackage = new HashMap<String,String>();
         if (publicApiPerClass == null) return publicApiPerPackage;
         Name[] keys = publicApiPerClass.keySet().toArray(new Name[0]);
         Arrays.sort(keys, new CompareNames());
         StringBuffer newPublicApi = new StringBuffer();
         int i=0;
         String prevPkg = "";
         for (Name k : keys) {
             String cn = k.toString();
             String pn = "";
             int dp = cn.lastIndexOf('.');
             if (dp != -1) {
                 pn = cn.substring(0,dp);
             }
             if (!pn.equals(prevPkg)) {
                 if (!prevPkg.equals("")) {
                     // Add default module name ":"
                     publicApiPerPackage.put(":"+prevPkg, newPublicApi.toString());
                 }
                 newPublicApi = new StringBuffer();
                 prevPkg = pn;
             }
             newPublicApi.append(publicApiPerClass.get(k));
             i++;
         }
         if (!prevPkg.equals(""))
             publicApiPerPackage.put(":"+prevPkg, newPublicApi.toString());
         return publicApiPerPackage;
     }
     /**
      * Visit the api of a class and construct a pubapi string and
      * store it into the pubapi_perclass map.
      */
     public void visitPubapi(Element e) {
         Name n = ((ClassSymbol)e).fullname;
         Name p = ((ClassSymbol)e).packge().fullname;
         StringBuffer sb = publicApiPerClass.get(n);
         assert(sb == null);
         sb = new StringBuffer();
         PubapiVisitor v = new PubapiVisitor(sb);
         v.visit(e);
         if (sb.length()>0) {
             publicApiPerClass.put(n, sb);
         }
         explicitPackages.add(p);
      }
     /**
      * Collect a dependency. curr_pkg is marked as depending on dep_pkg.
      */
     public void collect(Name currPkg, Name depPkg) {
         if (!currPkg.equals(depPkg)) {
             Set<Name> theset = deps.get(currPkg);
             if (theset==null) {
                 theset = new HashSet<Name>();
                 deps.put(currPkg, theset);
             }
             theset.add(depPkg);
         }
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/sjavac/comp/Dependencies.java@2620c953e9fe (annotated)

src/share/classes/com/sun/tools/sjavac/comp/Dependencies.java