28 lines
655 B
Scheme
28 lines
655 B
Scheme
(import (picrin base)
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(picrin test)
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(picrin control option))
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(define phonebook
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'(("Bob" . "01788 665242")
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("Fred" . "01624 556442")
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("Alice" . "01889 985333")
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("Jane" . "01732 187565")))
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(define nums
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'((one . 1) (two . 2) (three . 3) (four . 19)))
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(define num-dict
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(alist->dictionary nums))
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(test '("01889 985333" . 3)
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(reify
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(let* ((a (reflect (assoc "Alice" phonebook)))
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(b (reflect (dictionary-ref num-dict 'three))))
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(cons (cdr a) (cdr b)))))
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(test '#f
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(reify
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(let* ((a (reflect (assoc "Alice" phonebook)))
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(b (reflect (dictionary-ref num-dict 'five))))
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(cons (cdr a) (cdr b)))))
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