32 lines
1.0 KiB
Scheme
32 lines
1.0 KiB
Scheme
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; Copyright (c) 1993-1999 by Richard Kelsey and Jonathan Rees. See file COPYING.
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; This file has to be loaded into the initial-image before any use of
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; DEFINE-STRUCTURE. Compare with alt/init-defpackage.scm.
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; The procedure given to DEFINE-REFLECTIVE-TOWER-MAKER is called when
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; a DEFINE-STRUCTURE form is evaluated.
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(define-reflective-tower-maker
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(let ((environment-macro-eval
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(*structure-ref compiler-envs 'environment-macro-eval))
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(make-simple-interface
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(*structure-ref interfaces 'make-simple-interface))
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(env (interaction-environment)))
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(lambda (clauses id)
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(if (null? clauses)
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;; (make-reflective-tower eval (list scheme) id)
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(environment-macro-eval (package->environment env))
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(delay
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(let ((package (eval `(a-package ,(if id
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`(for-syntax ,id)
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'(for-syntax))
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,@clauses)
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env)))
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(ensure-loaded (make-structure package
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(lambda ()
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(make-simple-interface #f '()))
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'for-syntax))
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(cons eval package)))))))
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