// Path: src/main/java/com/fernandocejas/arrow/checks/Preconditions.java
// public static void checkState(boolean expression) {
//   if (!expression) {
//     throw new IllegalStateException();
//   }
// }


import static com.fernandocejas.arrow.checks.Preconditions.checkState;
/**
 * Copyright (C) 2007 The Guava 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.fernandocejas.arrow.collections;


/**
 * Precondition checks useful in collection implementations.
 */
public final class CollectPreconditions {

  public static void checkIndexNonnegative(int value) {
    if (value < 0) {
      throw new IndexOutOfBoundsException("value (" + value
          + ") must not be negative");
    }
  }

  public static int checkNonnegative(int value, String name) {
    if (value < 0) {
      throw new IllegalArgumentException(name + " cannot be negative but was: " + value);
    }
    return value;
  }

  /**
   * Precondition tester for {@code Iterator.remove()} that throws an exception with a consistent
   * error message.
   */
  static void checkRemove(boolean canRemove) {
// Path: src/main/java/com/fernandocejas/arrow/checks/Preconditions.java
// public static void checkState(boolean expression) {
//   if (!expression) {
//     throw new IllegalStateException();
//   }
// }


// Path: src/main/java/com/fernandocejas/arrow/collections/CollectPreconditions.java
import static com.fernandocejas.arrow.checks.Preconditions.checkState;

/**
 * Copyright (C) 2007 The Guava 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.fernandocejas.arrow.collections;


/**
 * Precondition checks useful in collection implementations.
 */
public final class CollectPreconditions {

  public static void checkIndexNonnegative(int value) {
    if (value < 0) {
      throw new IndexOutOfBoundsException("value (" + value
          + ") must not be negative");
    }
  }

  public static int checkNonnegative(int value, String name) {
    if (value < 0) {
      throw new IllegalArgumentException(name + " cannot be negative but was: " + value);
    }
    return value;
  }

  /**
   * Precondition tester for {@code Iterator.remove()} that throws an exception with a consistent
   * error message.
   */
  static void checkRemove(boolean canRemove) {
    checkState(canRemove, "no calls to next() since the last call to remove()");