27 lines
625 B
Scheme
27 lines
625 B
Scheme
#lang scheme/base
|
|
(require "model/trace.ss")
|
|
|
|
#|
|
|
(provide expand-only
|
|
expand/hide)
|
|
|
|
(define (expand-only stx show-list)
|
|
(define (show? id)
|
|
(ormap (lambda (x) (free-identifier=? id x))
|
|
show-list))
|
|
(expand/hiding stx show?))
|
|
|
|
(define (expand/hide stx hide-list)
|
|
(define (show? id)
|
|
(andmap (lambda (x) (not (free-identifier=? id x)))
|
|
hide-list))
|
|
(expand/hiding stx show?))
|
|
|
|
(define (expand/hiding stx show?)
|
|
(let-values ([(result deriv) (trace/result stx)])
|
|
(when (exn? result)
|
|
(raise result))
|
|
(let-values ([(_d estx) (hide*/policy deriv show?)])
|
|
estx)))
|
|
|#
|