"      NAME	SmallInterfaces
       AUTHOR	sadehb@ix.netcom.com (Benny Sadeh)
       URL	(none)
       FUNCTION	bringing Interfaces to Smalltalk
       KEYWORDS	interface 
       ST-VERSIONS	VisualWorks 2.5, VisualWorks 3.0, VisualAge 4.0
       PREREQUISITES	Refacotry Browser (3.0.3)
       CONFLICTS	(none known)
       DISTRIBUTION	world
       VERSION	1.4.2
       DATE	26-Apr-99

INSTALLATION

SmallInterfaces.pcl
Toy Interfaces.pcl
Refactory Browser
SmallInterfaces Gui.pcl


SUMMARY

SmallInterfaces brings explicit interfaces to Smalltalk.

Things you can do with SmallInterfaces:

1. Declare an interface and specify its behavior. This can be done in three distinct ways:
	- Directly, by specifying its name and selectors. (Look under the ''interface creation'' protocol under Interface.)
	- By composing from other interfaces.
	- By converting a class as a template (Look at the various asInterface* methods under Class.)

2. Declare a class as implementing one or more interfaces. This can be done in two distinct ways:
	- Directly, by adding a 'interfaces: stringOfInterfaceNames' to the class definition. 
	  (Look under the 'compiling' protocols under Class.)
	- By converting an interface to a class (Look at the various as Class* methods under Interface.)
	Both methods will create stubbed methods as necessary on behalf of the implemented interface(s)

3. Given a class, you can ask: 
	- What interfaces does it implement?

4. Given an interface, you can ask: 
	- Which classes understand it? 
	- Which classes implement it?

5. Given an interface, you can ask: 
	- Which interfaces extend it? 
	- Which interfaces it is extending?

6. Given a class and an interface, answer whether the class implements the interface.


				Benny Sadeh
"!