001    package edu.rice.cs.javalanglevels.tree;
002    
003    import edu.rice.cs.javalanglevels.SourceInfo;
004    
005    /**
006     * Class BitwiseNotExpression, a component of the JExpressionIF composite hierarchy.
007     * Note: null is not allowed as a value for any field.
008     * @version  Generated automatically by ASTGen at Sun Mar 04 23:01:27 CST 2012
009     */
010    public class BitwiseNotExpression extends UnaryExpression {
011    
012      /**
013       * Constructs a BitwiseNotExpression.
014       * @throws java.lang.IllegalArgumentException  If any parameter to the constructor is null.
015       */
016      public BitwiseNotExpression(SourceInfo in_sourceInfo, Expression in_value) {
017        super(in_sourceInfo, in_value);
018      }
019    
020    
021      public <RetType> RetType visit(JExpressionIFVisitor<RetType> visitor) { return visitor.forBitwiseNotExpression(this); }
022      public void visit(JExpressionIFVisitor_void visitor) { visitor.forBitwiseNotExpression(this); }
023    
024      /**
025       * Implementation of toString that uses
026       * {@link #output} to generated nicely tabbed tree.
027       */
028      public java.lang.String toString() {
029        java.io.StringWriter w = new java.io.StringWriter();
030        output(w);
031        return w.toString();
032      }
033    
034      /**
035       * Prints this object out as a nicely tabbed tree.
036       */
037      public void output(java.io.Writer writer) {
038        outputHelp(new TabPrintWriter(writer, 2));
039      }
040    
041      public void outputHelp(TabPrintWriter writer) {
042        writer.print("BitwiseNotExpression" + ":");
043        writer.indent();
044    
045        writer.startLine("");
046        writer.print("sourceInfo = ");
047        SourceInfo temp_sourceInfo = getSourceInfo();
048        if (temp_sourceInfo == null) {
049          writer.print("null");
050        } else {
051          writer.print(temp_sourceInfo);
052        }
053    
054        writer.startLine("");
055        writer.print("value = ");
056        Expression temp_value = getValue();
057        if (temp_value == null) {
058          writer.print("null");
059        } else {
060          temp_value.outputHelp(writer);
061        }
062        writer.unindent();
063      }
064    
065      /**
066       * Implementation of equals that is based on the values
067       * of the fields of the object. Thus, two objects 
068       * created with identical parameters will be equal.
069       */
070      public boolean equals(java.lang.Object obj) {
071        if (obj == null) return false;
072        if ((obj.getClass() != this.getClass()) || (obj.hashCode() != this.hashCode())) {
073          return false;
074        } else {
075          BitwiseNotExpression casted = (BitwiseNotExpression) obj;
076          if (! (getValue().equals(casted.getValue()))) return false;
077          return true;
078        }
079      }
080    
081      /**
082       * Implementation of hashCode that is consistent with
083       * equals. The value of the hashCode is formed by
084       * XORing the hashcode of the class object with
085       * the hashcodes of all the fields of the object.
086       */
087      protected int generateHashCode() {
088        int code = getClass().hashCode();
089        code ^= 0;
090        code ^= getValue().hashCode();
091        return code;
092      }
093    }