ExplicitConstructorInvocationStmt.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.stmt;

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

import org.walkmod.javalang.ast.Node;
import org.walkmod.javalang.ast.expr.Expression;
import org.walkmod.javalang.ast.type.Type;
import org.walkmod.javalang.visitors.GenericVisitor;
import org.walkmod.javalang.visitors.VoidVisitor;

/**
 * @author Julio Vilmar Gesser
 */
public final class ExplicitConstructorInvocationStmt extends Statement {

   private List<Type> typeArgs;

   private boolean isThis;

   private Expression expr;

   private List<Expression> args;

   public ExplicitConstructorInvocationStmt() {
   }

   public ExplicitConstructorInvocationStmt(boolean isThis, Expression expr, List<Expression> args) {
      this.isThis = isThis;
      setExpr(expr);
      setArgs(args);
   }

   public ExplicitConstructorInvocationStmt(int beginLine, int beginColumn, int endLine, int endColumn,
         List<Type> typeArgs, boolean isThis, Expression expr, List<Expression> args) {
      super(beginLine, beginColumn, endLine, endColumn);
      setTypeArgs(typeArgs);
      this.isThis = isThis;
      setExpr(expr);
      setArgs(args);
   }

   @Override
   public boolean removeChild(Node child) {
      boolean result = false;

      if (child != null) {
         if (expr == child) {
            expr = null;
            result = true;
         }
         if (!result) {
            if (typeArgs != null) {
               if (child instanceof Type) {
                  List<Type> typeArgsAux = new LinkedList<Type>(typeArgs);
                  result = typeArgsAux.remove(child);
                  typeArgs = typeArgsAux;
               }
            }
         }
      }
      if(result){
         updateReferences(child);
      }
      return result;
   }

   @Override
   public List<Node> getChildren() {
      List<Node> children = super.getChildren();
      if (typeArgs != null) {
         children.addAll(typeArgs);
      }
      if (expr != null) {
         children.add(expr);
      }
      if (args != null) {
         children.addAll(args);
      }
      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 List<Expression> getArgs() {
      return args;
   }

   public Expression getExpr() {
      return expr;
   }

   public List<Type> getTypeArgs() {
      return typeArgs;
   }

   public boolean isThis() {
      return isThis;
   }

   public void setArgs(List<Expression> args) {
      this.args = args;
      setAsParentNodeOf(args);
   }

   public void setExpr(Expression expr) {
      if (this.expr != null) {
         updateReferences(this.expr);
      }
      this.expr = expr;
      setAsParentNodeOf(expr);
   }

   public void setThis(boolean isThis) {
      this.isThis = isThis;
   }

   public void setTypeArgs(List<Type> typeArgs) {
      this.typeArgs = typeArgs;
      setAsParentNodeOf(typeArgs);
   }

   @Override
   public boolean replaceChildNode(Node oldChild, Node newChild) {
      boolean updated = false;
      if (oldChild == expr) {
         setExpr((Expression) newChild);
         updated = true;
      }
      if (!updated) {
         updated = replaceChildNodeInList(oldChild, newChild, args);

         if (!updated) {
            updated = replaceChildNodeInList(oldChild, newChild, typeArgs);
         }
      }
      return updated;
   }

   @Override
   public ExplicitConstructorInvocationStmt clone() throws CloneNotSupportedException {
      return new ExplicitConstructorInvocationStmt(isThis, clone(expr), clone(args));
   }
}