com.google.javascript.jscomp.testing.BlackHoleErrorManager Maven / Gradle / Ivy

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/*
 * Copyright 2015 The Closure Compiler Authors.
 *
 * 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.javascript.jscomp.testing;

import com.google.javascript.jscomp.BasicErrorManager;
import com.google.javascript.jscomp.CheckLevel;
import com.google.javascript.jscomp.Compiler;
import com.google.javascript.jscomp.JSError;

/** An ErrorManager that silently swallows all messages. */
public final class BlackHoleErrorManager extends BasicErrorManager {

  /**
   * {@link Compiler} prints to the console by default. This method silences
   * it to avoid spamming the console in tests.
   */
  public static void silence(Compiler compiler) {
    compiler.setErrorManager(new BlackHoleErrorManager());
  }

  @Override
  public void println(CheckLevel level, JSError error) { /* no-op */ }

  @Override
  public void printSummary() { /* no-op */ }
}