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41 lines
1.7 KiB
Scheme
41 lines
1.7 KiB
Scheme
;;; Copyright (c) 2000-2015 Dipanwita Sarkar, Andrew W. Keep, R. Kent Dybvig, Oscar Waddell
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;;; See the accompanying file Copyright for details
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(library (tests implementation-helpers)
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(export time printf system interpret pretty-print format)
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(import (vicare))
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(library
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(nanopass testing-environment)
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(export not < <= = boolean? char? eq? integer? null? pair? procedure?
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vector? zero? * + - add1 car cdr char->integer cons make-vector
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quotient remainder sub1 vector vector-length vector-ref void
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set-car! set-cdr! vector-set! quote set! if begin lambda let
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letrec)
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(import (rename (rnrs) (set! vicare:set!) (if vicare:if))
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(rnrs mutable-pairs)
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(rename (only (vicare) void sub1 add1 remainder quotient) (void vicare:void)))
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(define-syntax set!
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(syntax-rules ()
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[(_ x v) (call-with-values (lambda () (vicare:set! x v)) (case-lambda [() #!void] [(x) x]))]))
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(define-syntax if
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(syntax-rules ()
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[(_ t c) (call-with-values (lambda () (vicare:if t c)) (case-lambda [() #!void] [(x) x]))]
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[(_ t c a) (vicare:if t c a)]))
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(define-syntax void
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(syntax-rules ()
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[(_) (call-with-values (lambda () (vicare:void)) (case-lambda [() #!void] [(x) x]))])))
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(define interpret
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(lambda (src)
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;; work around for vicare's strange handling of the return value of primitives like set!,
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;; which apparently returns no values.
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(call-with-values (lambda () (eval src (environment '(nanopass testing-environment))))
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(case-lambda
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[() #!void]
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[(x) x]))))
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(define system
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(lambda (arg)
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(foreign-call "system" arg))))
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