34 lines
899 B
Scheme
34 lines
899 B
Scheme
; Copyright (c) 1993-1999 by Richard Kelsey and Jonathan Rees. See file COPYING.
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; Primops.
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(define-record-type primop :primop
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(make-primop name type closed compilator)
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primop?
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(name primop-name)
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(type primop-type)
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(closed primop-closed)
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(compilator primop-compilator))
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(define-record-discloser :primop
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(lambda (primop)
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`(primop ,(primop-name primop))))
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(define primop-table (make-symbol-table))
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; This is used to add definitions of the primitives to a package.
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(define (walk-primops proc)
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(table-walk (lambda (name primop)
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(proc name (primop-type primop) primop))
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primop-table))
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(define (define-compiler-primitive name type compilator closed)
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(table-set! primop-table
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name
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(make-primop name (or type value-type) closed compilator)))
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(define (get-primop name)
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(or (table-ref primop-table name)
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(error "unknown compiler primitive" name)))
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