2.1/dev/core/test/com/google/gwt/dev/shell/FailErrorLogger.java

/*
 * Copyright 2009 Google Inc.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package com.google.gwt.dev.shell;

import com.google.gwt.core.ext.TreeLogger;

/**
 * A TreeLogger which throws an assertion failure if any error is logged.
 */
public class FailErrorLogger extends TreeLogger {

  @Override
  public TreeLogger branch(Type type, String msg, Throwable caught,
      HelpInfo helpInfo) {
    if (type == TreeLogger.ERROR) {
      AssertionError error = new AssertionError(msg);
      error.initCause(caught);
      throw error;
    }
    return this;
  }

  @Override
  public boolean isLoggable(Type type) {
    return true;
  }

  @Override
  public void log(Type type, String msg, Throwable caught, HelpInfo helpInfo) {
    if (type == TreeLogger.ERROR) {
      AssertionError error = new AssertionError(msg);
      error.initCause(caught);
      throw error;
    }
  }
}