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Above, the Lisp “send” function is executed three times:
(send “hello world” ‘length)
–> 11
(send ‘(this is a (nested array) test) ‘inspect)
–> opens an inspector window on the list
(send (find-class “ClassBrowser”) ‘open)
–> opens a ClassBrowser window
Lisp function “send” and “send-super” have the syntax:
(send <receiver object> <selector symbol> <args…>)
(send-super <receiver object> <selector symbol> <args…>)
Each “send” function call begins a Smalltalk process which returns a result to Lisp upon completion. There can be multiple Lisp “send” functions active concurrently.
The Lisp interpreter has full macro capabilities and supports native background threads; it will nicely complement the user interface strengths of the Smalltalk bytecode interpreter.
