jdk8-mips64-public/langtools: src/share/classes/com/sun/tools/javac/code/DeferredLintHandler.java@4ce8148ffc4f (annotated)

src/share/classes/com/sun/tools/javac/code/DeferredLintHandler.java@4ce8148ffc4f (annotated)

src/share/classes/com/sun/tools/javac/code/DeferredLintHandler.java

Mon, 16 Sep 2013 14:13:44 +0200

author: jlahoda
date: Mon, 16 Sep 2013 14:13:44 +0200
changeset 2028: 4ce8148ffc4f
parent 1357: c75be5bc5283
child 2047: 5f915a0c9615
permissions: -rw-r--r--

8021112: Spurious unchecked warning reported by javac
6480588: No way to suppress deprecation warnings when implementing deprecated interface
Summary: Fixing DeferredLintHandler configuration, so lint warnings are reported with correct @SuppressWarnings settings
Reviewed-by: jjg, vromero

 /*
  * Copyright (c) 2011, 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.javac.code;
 import java.util.HashMap;
 import java.util.Map;
 import com.sun.tools.javac.tree.EndPosTable;
 import com.sun.tools.javac.tree.JCTree;
 import com.sun.tools.javac.util.Assert;
 import com.sun.tools.javac.util.Context;
 import com.sun.tools.javac.util.JCDiagnostic.DiagnosticPosition;
 import com.sun.tools.javac.util.ListBuffer;
 /**
  *
  * <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 DeferredLintHandler {
     protected static final Context.Key<DeferredLintHandler> deferredLintHandlerKey =
         new Context.Key<DeferredLintHandler>();
     public static DeferredLintHandler instance(Context context) {
         DeferredLintHandler instance = context.get(deferredLintHandlerKey);
         if (instance == null)
             instance = new DeferredLintHandler(context);
         return instance;
     }
     protected DeferredLintHandler(Context context) {
         context.put(deferredLintHandlerKey, this);
         this.currentPos = IMMEDIATE_POSITION;
     }
     /**An interface for deferred lint reporting - loggers passed to
      * {@link #report(LintLogger) } will be called when
      * {@link #flush(DiagnosticPosition) } is invoked.
      */
     public interface LintLogger {
         void report();
     }
     private DiagnosticPosition currentPos;
     private Map<DiagnosticPosition, ListBuffer<LintLogger>> loggersQueue = new HashMap<DiagnosticPosition, ListBuffer<LintLogger>>();
     /**Associate the given logger with the current position as set by {@link #setPos(DiagnosticPosition) }.
      * Will be invoked when {@link #flush(DiagnosticPosition) } will be invoked with the same position.
      * <br>
      * Will invoke the logger synchronously if {@link #immediate() } was called
      * instead of {@link #setPos(DiagnosticPosition) }.
      */
     public void report(LintLogger logger) {
         if (currentPos == IMMEDIATE_POSITION) {
             logger.report();
         } else {
             ListBuffer<LintLogger> loggers = loggersQueue.get(currentPos);
             if (loggers == null) {
                 loggersQueue.put(currentPos, loggers = ListBuffer.<LintLogger>lb());
             }
             loggers.append(logger);
         }
     }
     /**Invoke all {@link LintLogger}s that were associated with the provided {@code pos}.
      */
     public void flush(DiagnosticPosition pos) {
         ListBuffer<LintLogger> loggers = loggersQueue.get(pos);
         if (loggers != null) {
             for (LintLogger lintLogger : loggers) {
                 lintLogger.report();
             }
             loggersQueue.remove(pos);
         }
     }
     /**Sets the current position to the provided {@code currentPos}. {@link LintLogger}s
      * passed to subsequent invocations of {@link #report(LintLogger) } will be associated
      * with the given position.
      */
     public DiagnosticPosition setPos(DiagnosticPosition currentPos) {
         DiagnosticPosition prevPosition = this.currentPos;
         this.currentPos = currentPos;
         return prevPosition;
     }
     /**{@link LintLogger}s passed to subsequent invocations of
      * {@link #report(LintLogger) } will be invoked immediately.
      */
     public DiagnosticPosition immediate() {
         return setPos(IMMEDIATE_POSITION);
     }
     private static final DiagnosticPosition IMMEDIATE_POSITION = new DiagnosticPosition() {
         @Override
         public JCTree getTree() {
             Assert.error();
             return null;
         }
         @Override
         public int getStartPosition() {
             Assert.error();
             return -1;
         }
         @Override
         public int getPreferredPosition() {
             Assert.error();
             return -1;
         }
         @Override
         public int getEndPosition(EndPosTable endPosTable) {
             Assert.error();
             return -1;
         }
     };
 }

Mercurial > jdk8-mips64-public > langtools / annotate

src/share/classes/com/sun/tools/javac/code/DeferredLintHandler.java@4ce8148ffc4f (annotated)

src/share/classes/com/sun/tools/javac/code/DeferredLintHandler.java