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preserve original var names in lets and lambdas

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* module/ice-9/psyntax.scm (build-letrec, build-let, build-lambda)
  (build-named-let): Take extra args for the original names of the
  gensyms. Not used yet. Callers adapted.

* module/ice-9/psyntax-pp.scm: Regenerated.
This commit is contained in:
Andy Wingo 2009-05-17 16:27:18 +02:00
parent cf10678fe7
commit 547a602d1e
2 changed files with 41 additions and 26 deletions
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22
module/ice-9/psyntax-pp.scm
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45
module/ice-9/psyntax.scm
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@ -434,7 +434,7 @@
(else `(define ,var ,exp)))))
(define build-lambda
(lambda (src vars docstring exp)
(lambda (src ids vars docstring exp)
(case (fluid-ref *mode*)
((c) ((@ (language tree-il) make-lambda) src vars
(if docstring `((documentation . ,docstring)) '())
@ -465,7 +465,7 @@
(else `(begin ,@exps))))))
(define build-let
(lambda (src vars val-exps body-exp)
(lambda (src ids vars val-exps body-exp)
(if (null? vars)
body-exp
(case (fluid-ref *mode*)
@ -473,18 +473,22 @@
(else `(let ,(map list vars val-exps) ,body-exp))))))
(define build-named-let
(lambda (src vars val-exps body-exp)
(lambda (src ids vars val-exps body-exp)
(let ((f (car vars))
(vars (cdr vars)))
(f-name (car ids))
(vars (cdr vars))
(ids (cdr ids)))
(case (fluid-ref *mode*)
((c) ((@ (language tree-il) make-letrec) src
(list f) (list (build-lambda src vars #f body-exp))
(build-application src (build-lexical-reference 'fun src f f)
; (list f-name)
(list f)
(list (build-lambda src ids vars #f body-exp))
(build-application src (build-lexical-reference 'fun src f-name f)
val-exps)))
(else `(let ,f ,(map list vars val-exps) ,body-exp))))))
(define build-letrec
(lambda (src vars val-exps body-exp)
(lambda (src ids vars val-exps body-exp)
(if (null? vars)
body-exp
(case (fluid-ref *mode*)
@ -1390,6 +1394,7 @@
(loop (cdr bs) er-cache r-cache)))))
(set-cdr! r (extend-env labels bindings (cdr r)))
(build-letrec no-source
(map syntax->datum ids)
vars
(map (lambda (x)
(chi (cdr x) (car x) empty-wrap mod))
@ -1412,7 +1417,8 @@
(syntax-violation 'lambda "invalid parameter list" e)
(let ((labels (gen-labels ids))
(new-vars (map gen-var ids)))
(k new-vars
(k (map syntax->datum ids)
new-vars
docstring
(chi-body (syntax (e1 e2 ...))
e
@ -1425,7 +1431,11 @@
(syntax-violation 'lambda "invalid parameter list" e)
(let ((labels (gen-labels old-ids))
(new-vars (map gen-var old-ids)))
(k (let f ((ls1 (cdr new-vars)) (ls2 (car new-vars)))
(k (let f ((ls1 (cdr old-ids)) (ls2 (car old-ids)))
(if (null? ls1)
(syntax->datum ls2)
(f (cdr ls1) (cons (syntax->datum (car ls1)) ls2))))
(let f ((ls1 (cdr new-vars)) (ls2 (car new-vars)))
(if (null? ls1)
ls2
(f (cdr ls1) (cons (car ls1) ls2))))
@ -1747,7 +1757,7 @@
((ref) (build-lexical-reference 'value no-source (cadr x) (cadr x)))
((primitive) (build-primref no-source (cadr x)))
((quote) (build-data no-source (cadr x)))
((lambda) (build-lambda no-source (cadr x) #f (regen (caddr x))))
((lambda) (build-lambda no-source (cadr x) (cadr x) #f (regen (caddr x))))
((map) (let ((ls (map regen (cdr x))))
(build-application no-source
;; this check used to be here, not sure what for:
@ -1773,7 +1783,8 @@
(syntax-case e ()
((_ . c)
(chi-lambda-clause (source-wrap e w s mod) #f (syntax c) r w mod
(lambda (vars docstring body) (build-lambda s vars docstring body)))))))
(lambda (names vars docstring body)
(build-lambda s names vars docstring body)))))))
(global-extend 'core 'let
@ -1786,6 +1797,7 @@
(let ((nw (make-binding-wrap ids labels w))
(nr (extend-var-env labels new-vars r)))
(constructor s
(map syntax->datum ids)
new-vars
(map (lambda (x) (chi x r w mod)) vals)
(chi-body exps (source-wrap e nw s mod)
@ -1820,6 +1832,7 @@
(let ((w (make-binding-wrap ids labels w))
(r (extend-var-env labels new-vars r)))
(build-letrec s
(map syntax->datum ids)
new-vars
(map (lambda (x) (chi x r w mod)) (syntax (val ...)))
(chi-body (syntax (e1 e2 ...))
@ -1930,7 +1943,7 @@
(let ((labels (gen-labels ids)) (new-vars (map gen-var ids)))
(build-application no-source
(build-primref no-source 'apply)
(list (build-lambda no-source new-vars #f
(list (build-lambda no-source (map syntax->datum ids) new-vars #f
(chi exp
(extend-env
labels
@ -1957,7 +1970,7 @@
(let ((y (gen-var 'tmp)))
; fat finger binding and references to temp variable y
(build-application no-source
(build-lambda no-source (list y) #f
(build-lambda no-source (list 'tmp) (list y) #f
(let ((y (build-lexical-reference 'value no-source
'tmp y)))
(build-conditional no-source
@ -1991,7 +2004,9 @@
(let ((labels (list (gen-label)))
(var (gen-var (syntax pat))))
(build-application no-source
(build-lambda no-source (list var) #f
(build-lambda no-source
(list (syntax->datum (syntax pat))) (list var)
#f
(chi (syntax exp)
(extend-env labels
(list (make-binding 'syntax `(,var . 0)))
@ -2017,7 +2032,7 @@
(let ((x (gen-var 'tmp)))
; fat finger binding and references to temp variable x
(build-application s
(build-lambda no-source (list x) #f
(build-lambda no-source (list 'tmp) (list x) #f
(gen-syntax-case (build-lexical-reference 'value no-source
'tmp x)
(syntax (key ...)) (syntax (m ...))