ReferenceType.java

/* 
  Copyright (C) 2013 Raquel Pau and Albert Coroleu.
 
 Walkmod is free software: you can redistribute it and/or modify
 it under the terms of the GNU Lesser General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
 
 Walkmod is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU Lesser General Public License for more details.
 
 You should have received a copy of the GNU Lesser General Public License
 along with Walkmod.  If not, see <http://www.gnu.org/licenses/>.*/
package org.walkmod.javalang.ast.type;

import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;

import org.walkmod.javalang.ast.Node;
import org.walkmod.javalang.ast.expr.AnnotationExpr;
import org.walkmod.javalang.visitors.GenericVisitor;
import org.walkmod.javalang.visitors.VoidVisitor;

/**
 * @author Julio Vilmar Gesser
 */
public final class ReferenceType extends Type {

   private Type type;

   private int arrayCount;

   private List<List<AnnotationExpr>> arraysAnnotations;

   public ReferenceType() {
   }

   public ReferenceType(Type type) {
      setType(type);
   }

   public ReferenceType(Type type, int arrayCount) {
      setType(type);
      this.arrayCount = arrayCount;
   }

   public ReferenceType(Type type, int arrayCount, List<AnnotationExpr> annotations) {
      super(annotations);
      setType(type);
      this.arrayCount = arrayCount;
   }

   public ReferenceType(Type type, int arrayCount, List<AnnotationExpr> annotations,
         List<List<AnnotationExpr>> arraysAnnotations) {
      super(annotations);
      setType(type);
      this.arrayCount = arrayCount;
      setArraysAnnotations(arraysAnnotations);
   }

   public ReferenceType(int beginLine, int beginColumn, int endLine, int endColumn, Type type, int arrayCount) {
      super(beginLine, beginColumn, endLine, endColumn);
      setType(type);
      this.arrayCount = arrayCount;
   }

   public ReferenceType(int beginLine, int beginColumn, int endLine, int endColumn, Type type, int arrayCount,
         List<AnnotationExpr> annotations, List<List<AnnotationExpr>> arraysAnnotations) {
      super(beginLine, beginColumn, endLine, endColumn, annotations);
      setType(type);
      this.arrayCount = arrayCount;
      setArraysAnnotations(arraysAnnotations);
   }

   @Override
   public boolean removeChild(Node child) {
      boolean result = false;
      if (child != null) {
         if (child == type) {
            type = null;
            result = true;
         }
         if (arraysAnnotations != null) {
            if (child instanceof AnnotationExpr) {
               List<List<AnnotationExpr>> arraysAnnotationsAux = new LinkedList<List<AnnotationExpr>>();
               Iterator<List<AnnotationExpr>> it = arraysAnnotations.iterator();
               while (it.hasNext()) {
                  List<AnnotationExpr> next = it.next();
                  List<AnnotationExpr> nextAux = new LinkedList<AnnotationExpr>(next);
                  result = result || nextAux.remove(child);
                  arraysAnnotationsAux.add(nextAux);
               }
               arraysAnnotations = arraysAnnotationsAux;
            }
         }
      }
      if(result){
         updateReferences(child);
      }
      return result;
   }

   @Override
   public List<Node> getChildren() {
      List<Node> children = super.getChildren();
      if (type != null) {
         children.add(type);
      }
      if (arraysAnnotations != null) {
         for (List<AnnotationExpr> annList : arraysAnnotations) {
            children.addAll(annList);
         }
      }
      return children;
   }

   @Override
   public <R, A> R accept(GenericVisitor<R, A> v, A arg) {
      if (!check()) {
         return null;
      }
      return v.visit(this, arg);
   }

   @Override
   public <A> void accept(VoidVisitor<A> v, A arg) {
      if (check()) {
         v.visit(this, arg);
      }
   }

   public int getArrayCount() {
      return arrayCount;
   }

   public Type getType() {
      return type;
   }

   public void setArrayCount(int arrayCount) {
      this.arrayCount = arrayCount;
   }

   public void setType(Type type) {
      if (this.type != null) {
         updateReferences(this.type);
      }
      this.type = type;
      setAsParentNodeOf(type);
   }

   public List<List<AnnotationExpr>> getArraysAnnotations() {
      return arraysAnnotations;
   }

   public void setArraysAnnotations(List<List<AnnotationExpr>> arraysAnnotations) {
      this.arraysAnnotations = arraysAnnotations;
      if (arraysAnnotations != null) {
         for (List<AnnotationExpr> ann : arraysAnnotations) {
            setAsParentNodeOf(ann);
         }
      }
   }

   @Override
   public boolean replaceChildNode(Node oldChild, Node newChild) {
      boolean updated = super.replaceChildNode(oldChild, newChild);
      if (oldChild == type) {
         setType((ClassOrInterfaceType) newChild);
         updated = true;
      }

      if (!updated) {
         if (arraysAnnotations != null) {
            for (List<AnnotationExpr> list : arraysAnnotations) {
               updated = updated || replaceChildNodeInList(oldChild, newChild, list);
            }
         }
      }
      return updated;
   }

   @Override
   public ReferenceType clone() throws CloneNotSupportedException {
      List<List<AnnotationExpr>> copy = null;
      if (arraysAnnotations != null) {
         copy = new LinkedList<List<AnnotationExpr>>();
         for (List<AnnotationExpr> item : arraysAnnotations) {
            copy.add(clone(item));
         }
      }
      return new ReferenceType(clone(type), arrayCount, clone(getAnnotations()), copy);
   }

}