HasNextState.java

package jetbrains.mps.internal.collections.runtime.impl;

/*Generated by MPS */


public enum HasNextState {
  UNKNOWN(-1),
  HAS_NEXT(1),
  AT_END(0);

  private int value;
  private HasNextState(int value) {
    this.value = value;
  }
  public boolean unknown() {
    return value < 0;
  }
  public boolean hasNext() {
    if (value < 0) {
      throw new IllegalStateException();
    }
    return value > 0;
  }
}