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beautiful-racket/beautiful-racket-demo/javascriptlike-demo/sexped.rkt

30 lines
827 B
Racket

#lang s-exp scriptlike/expander
(assignment x 42)
(assignment s "string")
(sumlike x x)
(sumlike s x)
(assignment thing (object
("foo" 42)
("bar" (func-def (x)
(return (sumlike x 15))))))
(dotted-id (thing foo))
(dotted-id (thing bar))
(func-app (dotted-id (thing bar)) 3)
(assignment console (object ("log" (func-def (str) (displayln str))))) ; simulates global console (don't put in parse tree)
(if (comparison (dotted-id (thing foo)) == 42)
(func-app (dotted-id (console log)) (sumlike "The correct answer is " (dotted-id (thing foo)))))
(assignment idx 0)
(while (comparison idx != 50)
(if (comparison (func-app (dotted-id (thing bar)) idx) == 35)
(alert (sumlike "Calamity at " idx "!")))
(increment idx))