PatternUtil.java

package jetbrains.mps.lang.pattern.runtime;

/*Generated by MPS */

import jetbrains.mps.util.annotation.ToRemove;
import org.jetbrains.mps.openapi.model.SNodeReference;
import org.jetbrains.mps.openapi.model.SNode;
import org.jetbrains.mps.openapi.language.SContainmentLink;
import java.util.Iterator;

/**
 * 
 * @deprecated Has been used by generated code for pattern, now replaced with NodeMatcher runtime implementation
 */
@Deprecated
@ToRemove(version = 3.4)
public final class PatternUtil {
  @Deprecated
  private PatternUtil() {
  }
  public static boolean matchReferentWithNode(SNodeReference pointer, SNode node) {
    if (pointer == null || node == null || node.getModel() == null) {
      return false;
    }
    if (!(pointer.equals(node.getReference()))) {
      return false;
    }
    return true;
  }

  public static boolean hasNChildren(SNode parent, SContainmentLink role, int num) {
    Iterator<? extends SNode> it = parent.getChildren(role).iterator();
    for (int i = 0; i < num; i++) {
      if (!(it.hasNext())) {
        return false;
      }
      it.next();
    }
    return !(it.hasNext());
  }
}