package com.google.common.base;

import com.google.common.annotations.GwtIncompatible;
import java.io.Serializable;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/** A regex pattern implementation which is backed by the {@link Pattern}. */
@ElementTypesAreNonnullByDefault
@GwtIncompatible
final class JdkPattern extends CommonPattern implements Serializable {
  private final Pattern pattern;

  JdkPattern(Pattern pattern) {

 *   <li>{@code stringConverter().reverse().convert(1.0)} returns the string {@code "1.0"} --
 *       <i>not</i> the same string ({@code "1.00"}) we started with
 * </ol>
 *
 * <p>Note that it should still be the case that the round-tripped and original objects are
 * <i>similar</i>.
 *
 * <h3>Nullability</h3>
 *

import java.util.Collection;
import java.util.EnumSet;
import java.util.Spliterator;
import java.util.function.Consumer;
import javax.annotation.CheckForNull;

/**
 * Implementation of {@link ImmutableSet} backed by a non-empty {@link java.util.EnumSet}.
 *
 * @author Jared Levy
 */
@GwtCompatible(serializable = true, emulated = true)
@SuppressWarnings("serial") // we're overriding default serialization

    // Lock while we check state. We must maintain the lock while adding the new pair so that
    // another thread can't run the list out from under us. We only add to the list if we have not
    // yet started execution.
    synchronized (this) {
      if (!executed) {
        runnables = new RunnableExecutorPair(runnable, executor, runnables);
        return;
      }
    }

    // TODO(kevinb): Figure out the right behavior, and document it
    return Ints.saturatedCast(5L + arraySize + (arraySize / 10));
  }

  /**
   * Creates an {@code ArrayList} instance backed by an array with the specified initial size;
   * simply delegates to {@link ArrayList#ArrayList(int)}.
   *
   * <p><b>Note:</b> this method is now unnecessary and should be treated as deprecated. Instead,

    }
  }

  private static void assertIntactUsingStartedWith(
      Collection<?> startedWith, MinMaxPriorityQueue<?> q) {
    if (!q.isIntact()) {
      fail("Started with " + startedWith + ". State " + Arrays.toString(q.toArray()));
    }
  }

  private static void assertEqualsUsingSeed(
      long seed, @Nullable Object expected, @Nullable Object actual) {

        .isEqualTo(65535);
  }

  /**
   * Encodes the long as a string with given radix, then uses {@link Longs#tryParse(String, int)} to
   * parse the result. Asserts the result is the same as what we started with.
   */
  private static void radixEncodeParseAndAssertEquals(Long value, int radix) {
    assertWithMessage("Radix: " + radix)
        .that(Longs.tryParse(Long.toString(value, radix), radix))

        .isEqualTo(65535);
  }

  /**
   * Encodes the long as a string with given radix, then uses {@link Longs#tryParse(String, int)} to
   * parse the result. Asserts the result is the same as what we started with.
   */
  private static void radixEncodeParseAndAssertEquals(Long value, int radix) {
    assertWithMessage("Radix: " + radix)
        .that(Longs.tryParse(Long.toString(value, radix), radix))

   * previously returned from a call to {@link System#nanoTime()}.
   */
  long millisElapsedSince(long startNanoTime) {
    return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
  }

  /** Returns a new started daemon Thread running the given runnable. */
  Thread newStartedThread(Runnable runnable) {
    Thread t = new Thread(runnable);
    t.setDaemon(true);
    t.start();
    return t;
  }

  /**

    return new SingletonImmutableSet<>(element);
  }

  /*
   * TODO: b/315526394 - Skip the Builder entirely for the of(...) methods, since we don't need to
   * worry that we might trigger the fallback to the JDK-backed implementation? (The varargs one
   * _could_, so we could keep it as it is. Or we could convince ourselves that hash flooding is
   * unlikely in practice there, too.)
   */

  /**