racket/collects/swindle/turbo.rkt
2010-04-27 16:50:15 -06:00

43 lines
1.7 KiB
Racket

;;; Written by Eli Barzilay: Maze is Life! (eli@barzilay.org)
;;> This module combines the `base', `setf', and `misc', modules to create a
;;> new language module. Use this module to get most of Swindle's
;;> functionality which is unrelated to the object system.
#lang s-exp swindle/base
(require swindle/setf swindle/misc)
(provide (all-from-except swindle/base set! set!-values #%module-begin)
(rename module-begin~ #%module-begin)
(all-from-except swindle/setf setf! psetf!)
;;>> (set! place value ...) [*syntax*]
;;>> (pset! place value ...) [*syntax*]
;;>> (set!-values (place ...) expr) [*syntax*]
;;> This module renames `setf!', `psetf!', and `setf!-values' from the
;;> `setf' module as `set!', `pset!' and `set!-values' so the built-in
;;> `set!' and `set!-values' syntaxes are overridden.
(rename setf! set!) (rename psetf! pset!)
(rename setf!-values set!-values)
(all-from swindle/misc))
;;>> #%module-begin
;;> `turbo' is a language module -- it redefines `#%module-begin' to load
;;> itself for syntax definitions.
(defsyntax (module-begin~ stx)
(let ([e (if (syntax? stx) (syntax-e stx) stx)])
(if (pair? e)
(datum->syntax-object
(quote-syntax here)
(list* (quote-syntax #%plain-module-begin)
(datum->syntax-object stx
(list (quote-syntax require-for-syntax)
'swindle/turbo))
(cdr e))
stx)
(raise-syntax-error #f "bad syntax" stx)))
;; This doesn't work anymore (from 203.4)
;; (syntax-rules ()
;; [(_ . body)
;; (#%plain-module-begin
;; (require-for-syntax swindle/turbo) . body)])
)