compiler support for P records, -l option

This commit is contained in:
ESL 2024-08-01 17:05:56 -04:00
parent de3deba498
commit 2031aed6b2
2 changed files with 123 additions and 87 deletions

View file

@ -150,6 +150,15 @@
; for now, we will just use read with no support for circular structures
(read-simple port))
(define (lookup-global k . ?alloc) ;=> box | #f if !defined and !alloc
(let* ([v (global-store)] [i (immediate-hash k (vector-length v))])
(cond [(assq k (vector-ref v i)) => cdr]
[(and (pair? ?alloc) (car ?alloc))
(let ([b (box k)]) ; default value is k itself
(vector-set! v i (cons (cons k b) (vector-ref v i)))
b)]
[else #f])))
(define (error* msg args)
(raise (error-object #f msg args)))
@ -2478,10 +2487,13 @@
(let ([x0 (read-code-sexp port)]) ; support loading fasl files too
(if (eq? x0 (symbol->shebang (string->symbol "/usr/bin/env skint -f")))
(run-fasl-from-port port #f) ; do not call main even if it is there
(begin
(when (eq? x0 (symbol->shebang (string->symbol "/usr/bin/env skint -s")))
(set! x0 (read-code-sexp port))) ; just skip -- this file is loadable
(let loop ([x x0])
(unless (eof-object? x)
(eval x env)
(loop (read-code-sexp port))))))))
(loop (read-code-sexp port)))))))))
; we aren't asked by the spec to call last expr tail-recursively, so this
(void))
@ -2496,6 +2508,11 @@
(define (exec code)
(define cl (closure (deserialize-code code)))
(cl))
(define (def id code)
(define cl (closure (deserialize-code code)))
(set-box! (lookup-global id #t) cl))
(define (fail! lno hd)
(error "unexpected line header on FASL body line" lno hd))
(when (eqv? (peek-char port) #\#) ; header is optional if call is explicit
(define x (read-code-sexp port))
(unless (eq? x (symbol->shebang (string->symbol "/usr/bin/env skint -f")))
@ -2503,7 +2520,7 @@
(let loop ([c (peek-char port)])
(when (memv c '(#\newline #\return))
(read-char port) (loop (peek-char port))))
(let loop ([line 1])
(let loop ([lno 1])
(unless (eof-object? (peek-char port))
(define c1 (read-char port))
(define c2 (read-char port))
@ -2511,10 +2528,18 @@
(define hd (list c1 c2 c3))
(cond [(equal? hd '(#\C #\tab #\tab))
(exec (read-line port))
(loop (+ line 1))]
(loop (+ lno 1))]
[(and (eqv? c1 #\P) (eqv? c2 #\tab) (not (eof-object? c3)))
(let scan ([c (read-char port)] [l (list c3)])
(cond [(eof-object? c) (fail! lno 'eof)]
[(eqv? c #\tab)
(define id (string->symbol (list->string (reverse! l))))
(def id (read-line port))
(loop (+ lno 1))]
[else (scan (read-char port) (cons c l))]))]
[(equal? hd '(#\M #\tab #\tab))
(and (pair? main-args) (eval `(main (quote ,main-args)) env))]
[else (error "unexpected line header on FASL body line" line hd)]))))
[else (fail! lno hd)]))))
(define (run-fasl filename args)
(define main-args (cons filename args))
@ -2619,9 +2644,7 @@
(name-remove! *user-name-registry* (car args)) (display "done!\n" op)]
[else (display "name not found: " op) (write name op) (newline op)])]
[(gs) (write (global-store) op) (newline op)]
[(gs <symbol>)
(let* ([k (car args)] [v (global-store)] [i (immediate-hash k (vector-length v))])
(write (cond [(assq k (vector-ref v i)) => cdr] [else #f]) op) (newline op))]
[(gs <symbol>) (write (lookup-global (car args)) op) (newline op)]
[(load <string>) (load (car args))]
[(v) (set! *verbose* #t) (format #t "verbosity is on~%")]
[(v-) (set! *verbose* #f) (format #t "verbosity is off~%")]
@ -2727,6 +2750,7 @@
[prepend-libdir "-I" "--prepend-libdir" "DIR" "Prepend a library search directory"]
[define-feature "-D" "--define-feature" "NAME" "Add name to the list of features"]
[eval "-e" "--eval" "SEXP" "Evaluate and print an expression"]
[load "-l" "--load" "FILE" "Load file and continue processing"]
[script "-s" "--script" "FILE" "Run file as a Scheme script"]
[fasl "-f" "--fasl" "FILE" "Run file as a compiled script"]
[program "-p" "--program" "FILE" "Run file as a Scheme program"]
@ -2769,6 +2793,7 @@
[(append-libdir *) (append-library-path! optarg) (loop restargs #t)]
[(prepend-libdir *) (prepend-library-path! optarg) (loop restargs #t)]
[(define-feature *) (add-feature! optarg) (loop restargs #t)]
[(load *) (load optarg) (loop restargs #t)]
[(eval *) (eval! optarg #t) (loop restargs #f)]
[(script *) (set! *quiet* #t) (exit (run-script optarg restargs))]
[(fasl *) (set! *quiet* #t) (exit (run-fasl optarg restargs))]

165
t.c
View file

@ -100,6 +100,10 @@ char *t_code[] = {
"P", "read-code-sexp",
"%1.0,@(y11:read-simple)[11",
"P", "lookup-global",
"%!1U2,.0V3,.3H2,.0,.2V4,.4A3,.0?{.0d]5}.3p?{.3a}{f}?{.4b,.2,.4V4,.1,.7"
"cc,.3,.5V5.0]6}f]5",
"P", "error*",
"%2${.3,.3,f,@(y12:error-object)[03},@(y5:raise)[21",
@ -1550,26 +1554,31 @@ char *t_code[] = {
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"P", "run-fasl",
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@ -1635,47 +1644,47 @@ char *t_code[] = {
"registry*),@(y11:name-lookup)[03}?{${:0^a,@(y20:*user-name-registry*),"
"@(y12:name-remove!)[02}:2,'(s6:done!%0a)W4]1}:2,'(s16:name not found: "
")W4:2,@(y4:name)W5:2W6]1}${.2,'(l1:y2:gs;),@(y11:sexp-match?)[02}?{:2,"
"U2W5:2W6]1}${.2,'(l2:y2:gs;y8:<symbol>;),@(y11:sexp-match?)[02}?{:0^a,"
"U2,.0V3,.2H2,:2,.1,.3V4,.4A3,.0?{.0d}{f}_1W5:2W6]4}${.2,'(l2:y4:load;y"
"8:<string>;),@(y11:sexp-match?)[02}?{:0^a,@(y4:load)[11}${.2,'(l1:y1:v"
";),@(y11:sexp-match?)[02}?{t@!(y9:*verbose*)'(s17:verbosity is on~%25)"
",t,@(y6:format)[12}${.2,'(l1:y2:v-;),@(y11:sexp-match?)[02}?{f@!(y9:*v"
"erbose*)'(s18:verbosity is off~%25),t,@(y6:format)[12}${.2,'(l1:y1:q;)"
",@(y11:sexp-match?)[02}?{t@!(y7:*quiet*)'(s13:quiet is on~%25),t,@(y6:"
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@ -1712,19 +1721,20 @@ char *t_code[] = {
",@(y16:repl-environment),.8^,@(y14:repl-from-port)[04}_3}t]3",
"C", 0,
"'(l11:l5:y7:verbose;s2:-v;s9:--verbose;f;s25:Increase output verbosity"
"'(l12:l5:y7:verbose;s2:-v;s9:--verbose;f;s25:Increase output verbosity"
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"script;;l5:y7:program;s2:-p;s9:--program;s4:FILE;s28:Run file as a Sch"
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@ -1757,21 +1767,22 @@ char *t_code[] = {
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":sexp-match?)[02}?{${.4,@(y21:prepend-library-path!)[01}t,.4,:2^[42}${"
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