Object Lisp was a computer programming language, a dialect of the Lisp language. It was an object-oriented extension for the Lisp dialect Lisp Machine Lisp, designed by Lisp Machines, Inc. Object Lisp was also an early example of prototype-based programming.
It was seen as a competitor to other object-oriented extensions to Lisp at around the same time such as Flavors, in use by Symbolics, Common Objects developed by Hewlett-Packard, and CommonLoops, in use by Xerox.
Object Lisp was also used in early versions of Macintosh Common Lisp. There, the user interface toolkit was written using Object Lisp.
Famous quotes containing the words object and/or lisp:
“To quarrel with the uncertainty that besets us in intellectual affairs would be about as reasonable as to object to live one’s life with due thought for the morrow because no man can be sure he will alive an hour hence.”
—Thomas Henry Huxley (1825–95)
“Taught me my alphabet to say,
To lisp my very earliest word,”
—Edgar Allan Poe (1809–1849)