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Linux Cubed Series 7: Sunsite
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template.scm
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1995-10-13
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820b
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28 lines
; -*- Mode: Scheme; Syntax: Scheme; Package: Scheme; -*-
; Copyright (c) 1993, 1994 Richard Kelsey and Jonathan Rees. See file COPYING.
; Somewhat redundant with vm/istruct.scm. Fix this some day.
; Templates
; Templates are made only by the compiler.
;(define make-template make-vector)
;(define (template? obj)
; (and (vector? obj)
; (>= (vector-length obj) template-overhead)
; (code-vector? (template-code obj))
; ))
;(define template-length vector-length)
;(define template-ref vector-ref)
;(define template-set! vector-set!)
(define template-overhead 2)
(define (template-code tem) (template-ref tem 0))
(define (template-info tem) (template-ref tem 1))
(define (set-template-code! tem cv) (template-set! tem 0 cv))
(define (set-template-info! tem info) (template-set! tem 1 info))