#|
The Java Wizard helps programmers create 
   * classes 
   * datatypes via classes. 
   
The class wizard requests class name, superclass, and field specifications. 
From these, it generates a class, its constructor, and optionally a partial 
template for methods, a toString method, and a diagram. 

The union wizard requests a union name and specifications for the variants. 
From these, it generates an abstract class (for the union name) and one 
variant class that extends the abstract class per variant specification. 
Again, it optionally adds templates, a toString method, and a diagram. 

Both wizards generate their text in a language-sensitive manner. For 
Beginner and Intermediate, they omit privacy specifications. 

The wizards are added to the Special menu and insert text at the current 
point. 

At the moment they cannot read back code and help with natural program 
edits and transformations. 

The two major files are: 
 wizard.ss, which is the view and provides the user interaction
 class.scm, which is the model and provides the functions for turning 
  a spec into a string that represents a class or a union. 

Also, class.scm does not use the Java implementation to perform basic
checks on the information. It just leaves this to the programmer.  So, for
example, if a programmer says a field has type "moo" and "moo" doesn't
exist as a class, then the wizard inserts a buggy class.
|#

BUGS: 

* union: 

** when a programmer changes the name of the Union after the variants have
   been specified, the wizard fails to change the type name in the
   variants. 

* drawing: 

** the Union wizard draws the method specs into the boxes for the
   classes. The book "thinks" of them as inherited. 

view

FEATURES:

** re-enable the method template creation in view
== the creation of method stubs depends on language level 

** allow the introduction of an abstract class for common features in
   Unions (common fields, common methods) 

** specification of mutually recursive features 

