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Closure Compiler is a JavaScript optimizing compiler. It parses your JavaScript, analyzes it, removes dead code and rewrites and minimizes what's left. It also checks syntax, variable references, and types, and warns about common JavaScript pitfalls. It is used in many of Google's JavaScript apps, including Gmail, Google Web Search, Google Maps, and Google Docs.

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/*
 * Copyright 2020 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;

import java.io.File;
import java.text.MessageFormat;

/** A utility to abstract platform specific logic so it could be super-sourced for Web. */
final class Platform {

  static String getFileSeperator() {
    return File.separator;
  }

  static boolean isThreadInterrupted() {
    // Note that this clears interruption. Thread.isInterruped should be preferred instead.
    return Thread.interrupted();
  }

  static long freeMemory() {
    return Runtime.getRuntime().freeMemory();
  }

  static long totalMemory() {
    return Runtime.getRuntime().totalMemory();
  }

  static String formatMessage(String message, String... arguments) {
    // Note that MessageFormat is removing single quotes and in many cases intended ones. Consider
    // moving to a simpler formatting version like the Web one.
    return MessageFormat.format(message, (Object[]) arguments);
  }

  private Platform() {}
}




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