code: public Object eval(
          BSHType typeNode, Modifiers modifiers, CallStack callstack, Interpreter interpreter)
          throws EvalError
      {
          // null value means no value
          Object value = modifiers.hasModifier("final")
                  ? null
                  : Primitive.getDefaultValue(typeNode.getBaseType());
  
          if ( jjtGetNumChildren() > 0 )
          {
              SimpleNode initializer = (SimpleNode)jjtGetChild(0);
  
              /*
                  If we have type info and the child is an array initializer
                  pass it along...  Else use the default eval style.
                  (This allows array initializer to handle the problem...
                  allowing for future enhancements in loosening types there).
              */
              if ( initializer instanceof BSHArrayInitializer )
                  value = ((BSHArrayInitializer)initializer).eval(typeNode.getBaseType(),
                      this.getArrayDims(typeNode), callstack, interpreter);
              else
                  value = initializer.eval( callstack, interpreter);
          }
  
          if ( value == Primitive.VOID )
              throw new EvalError("Void initializer.", this, callstack );
  
          return value;
      }
docs: Evaluate the optional initializer value.
  (The name was set at parse time.)
  
  A variable declarator can be evaluated with or without preceding
  type information. Currently the type info is only used by array
  initializers in the case where there is no explicitly declared type.
  
  @param typeNode is the BSHType node.  Its info is passed through to any
  variable intializer children for the case where the array initializer
  does not declare the type explicitly. e.g.
  int [] a = { 1, 2 };
  typeNode may be null to indicate no type information available.