finishing initial implementation of keyword arguments
fixing up interpreter so it can be used for bootstrapping again removing let/copyenv optimization because it really didn't seem to help much
This commit is contained in:
parent
adb702cdf8
commit
15c8cb327d
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@ -22,11 +22,11 @@
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setg setg.l
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seta seta.l setc setc.l
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closure argc vargc trycatch copyenv let for tapply
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closure argc vargc trycatch for tapply
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add2 sub2 neg largc lvargc
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loada0 loada1 loadc00 loadc01 call.l tcall.l
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brne brne.l cadr brnn brnn.l brn brn.l
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optargs brbound
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optargs brbound keyargs
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dummy_t dummy_f dummy_nil]))
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(for 0 (1- (length keys))
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@ -101,15 +101,18 @@
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(let ((lasti (if (pair? (aref e 0))
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(car (aref e 0)) ()))
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(bc (aref e 0)))
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(cond ((and (eq? inst 'brf) (eq? lasti 'not)
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(eq? (cadr bc) 'null?))
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(aset! e 0 (cons (car args) (cons 'brn (cddr bc)))))
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((and (eq? inst 'brf) (eq? lasti 'not))
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(aset! e 0 (cons (car args) (cons 'brt (cdr bc)))))
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((and (eq? inst 'brf) (eq? lasti 'eq?))
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(aset! e 0 (cons (car args) (cons 'brne (cdr bc)))))
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((and (eq? inst 'brf) (eq? lasti 'null?))
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(aset! e 0 (cons (car args) (cons 'brnn (cdr bc)))))
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(cond ((and
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(eq? inst 'brf)
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(cond ((and (eq? lasti 'not)
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(eq? (cadr bc) 'null?))
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(aset! e 0 (cons (car args) (cons 'brn (cddr bc)))))
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((eq? lasti 'not)
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(aset! e 0 (cons (car args) (cons 'brt (cdr bc)))))
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((eq? lasti 'eq?)
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(aset! e 0 (cons (car args) (cons 'brne (cdr bc)))))
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((eq? lasti 'null?)
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(aset! e 0 (cons (car args) (cons 'brnn (cdr bc)))))
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(else #f))))
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((and (eq? inst 'brt) (eq? lasti 'null?))
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(aset! e 0 (cons (car args) (cons 'brn (cdr bc)))))
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(else
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@ -182,11 +185,14 @@
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(io.write bcode (uint8 (aref v i)))
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(set! i (+ i 1)))
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((loadc.l setc.l optargs) ; 2 int32 args
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((loadc.l setc.l optargs keyargs) ; 2 int32 args
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(io.write bcode (int32 nxt))
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(set! i (+ i 1))
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(io.write bcode (int32 (aref v i)))
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(set! i (+ i 1)))
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(set! i (+ i 1))
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(if (eq? vi 'keyargs)
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(begin (io.write bcode (int32 (aref v i)))
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(set! i (+ i 1)))))
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(else
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; other number arguments are always uint8
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@ -343,26 +349,7 @@
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" arguments.")))
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(define (compile-app g env tail? x)
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(let ((head (car x)))
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(if (and (pair? head)
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(eq? (car head) 'lambda)
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(list? (cadr head))
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(every symbol? (cadr head))
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(not (length> (cadr head) 255)))
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(compile-let g env tail? x)
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(compile-call g env tail? x))))
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(define (compile-let g env tail? x)
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(let ((head (car x))
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(args (cdr x)))
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(unless (length= args (length (cadr head)))
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(error "apply: incorrect number of arguments to " head))
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(receive (the-f dept) (compile-f- env head #t)
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(emit g 'loadv the-f)
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(bcode:cdepth g dept))
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(let ((nargs (compile-arglist g env args)))
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(emit g 'copyenv)
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(emit g (if tail? 'tcall 'call) (+ 1 nargs)))))
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(compile-call g env tail? x))
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(define builtin->instruction
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(let ((b2i (table number? 'number? cons 'cons
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@ -485,9 +472,9 @@
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(emit g 'trycatch))
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(else (compile-app g env tail? x))))))
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(define (compile-f env f . let?)
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(define (compile-f env f)
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(receive (ff ignore)
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(apply compile-f- env f let?)
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(compile-f- env f)
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ff))
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(define get-defined-vars
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@ -507,6 +494,13 @@
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(else ())))))
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(lambda (expr) (delete-duplicates (get-defined-vars- expr)))))
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(define (keyword-arg? x) (and (pair? x) (keyword? (car x))))
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(define (keyword->symbol k)
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(if (keyword? k)
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(symbol (let ((s (string k)))
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(string.sub s 0 (string.dec s (length s)))))
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k))
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(define (lambda-vars l)
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(define (check-formals l o)
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(or
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@ -517,7 +511,12 @@
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(and (pair? (car l))
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(or (every pair? (cdr l))
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(error "compile error: invalid argument list "
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o ". optional arguments must come last.")))
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o ". optional arguments must come after required."))
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(if (keyword? (caar l))
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(or (every keyword-arg? (cdr l))
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(error "compile error: invalid argument list "
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o ". keyword arguments must come last."))
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#t))
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(error "compile error: invalid formal argument " (car l)
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" in list " o))
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(check-formals (cdr l) o))
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@ -525,8 +524,8 @@
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(error "compile error: invalid argument list " o)
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(error "compile error: invalid formal argument " l " in list " o))))
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(check-formals l l)
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(map (lambda (s) (if (pair? s) (car s) s))
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(to-proper l)))
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(map! (lambda (s) (if (pair? s) (keyword->symbol (car s)) s))
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(to-proper l)))
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(define (emit-optional-arg-inits g env opta vars i)
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; i is the lexical var index of the opt arg to process next
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@ -547,7 +546,7 @@
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(lambda (expr)
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(compile `(lambda () ,expr . ,*defines-processed-token*))))
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(lambda (env f . let?)
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(lambda (env f)
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; convert lambda to one body expression and process internal defines
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(define (lambda-body e)
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(let ((B (if (pair? (cddr e))
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@ -570,15 +569,25 @@
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'lambda
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(lastcdr f))))
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(let* ((nargs (if (atom? args) 0 (length args)))
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(nreq (- nargs (length opta))))
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(nreq (- nargs (length opta)))
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(kwa (filter keyword-arg? opta)))
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; emit argument checking prologue
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(if (not (null? opta))
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(begin (emit g 'optargs nreq (if (null? atail) nargs (- nargs)))
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(emit-optional-arg-inits g env opta vars nreq)))
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(begin
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(if (null? kwa)
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(emit g 'optargs nreq
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(if (null? atail) nargs (- nargs)))
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(begin
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(bcode:indexfor g (make-perfect-hash-table
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(map cons
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(map car kwa)
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(iota (length kwa)))))
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(emit g 'keyargs nreq (length kwa)
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(if (null? atail) nargs (- nargs)))))
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(emit-optional-arg-inits g env opta vars nreq)))
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(cond ((not (null? let?)) (emit g 'let))
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((> nargs 255) (emit g (if (null? atail)
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(cond ((> nargs 255) (emit g (if (null? atail)
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'largc 'lvargc)
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nargs))
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((not (null? atail)) (emit g 'vargc nargs))
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@ -661,11 +670,16 @@
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(princ (number->string (aref code i)))
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(set! i (+ i 1)))
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((loadc.l setc.l optargs)
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((loadc.l setc.l optargs keyargs)
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(princ (number->string (ref-int32-LE code i)) " ")
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(set! i (+ i 4))
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(princ (number->string (ref-int32-LE code i)))
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(set! i (+ i 4)))
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(set! i (+ i 4))
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(if (eq? inst 'keyargs)
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(begin
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(princ " ")
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(princ (number->string (ref-int32-LE code i)) " ")
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(set! i (+ i 4)))))
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((brbound)
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(princ (number->string (ref-int32-LE code i)) " ")
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@ -683,4 +697,31 @@
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(else #f)))))))
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; From SRFI 89 by Marc Feeley (http://srfi.schemers.org/srfi-89/srfi-89.html)
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; Copyright (C) Marc Feeley 2006. All Rights Reserved.
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;
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; "alist" is a list of pairs of the form "(keyword . value)"
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; The result is a perfect hash-table represented as a vector of
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; length 2*N, where N is the hash modulus. If the keyword K is in
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; the hash-table it is at index
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;
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; X = (* 2 ($hash-keyword K N))
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;
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; and the associated value is at index X+1.
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(define (make-perfect-hash-table alist)
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(define ($hash-keyword key n) (mod0 (abs (hash key)) n))
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(let loop1 ((n (length alist)))
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(let ((v (vector.alloc (* 2 n) #f)))
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(let loop2 ((lst alist))
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(if (pair? lst)
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(let ((key (caar lst)))
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(let ((x (* 2 ($hash-keyword key n))))
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(if (aref v x)
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(loop1 (+ n 1))
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(begin
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(aset! v x key)
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(aset! v (+ x 1) (cdar lst))
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(loop2 (cdr lst))))))
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v)))))
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#t
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File diff suppressed because one or more lines are too long
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@ -391,7 +391,7 @@ void fl_gc_handle(value_t *pv)
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GCHandleStack[N_GCHND++] = pv;
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}
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void fl_free_gc_handles(int n)
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void fl_free_gc_handles(uint32_t n)
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{
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assert(N_GCHND >= n);
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N_GCHND -= n;
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@ -826,11 +826,11 @@ static uint32_t process_keys(value_t kwtable,
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lerrorf(ArgError, "keyword %s requires an argument",
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symbol_name(v));
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value_t hv = fixnum(((symbol_t*)ptr(v))->hash);
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uint32_t x = 2*(numval(hv) % n);
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uint32_t x = 2*(abs(numval(hv)) % n);
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if (vector_elt(kwtable, x) == v) {
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uint32_t idx = numval(vector_elt(kwtable, x+1));
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assert(idx < nkw);
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idx += (nreq+nopt);
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idx += nopt;
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if (args[idx] == UNBOUND) {
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// if duplicate key, keep first value
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args[idx] = Stack[bp+i];
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@ -995,40 +995,6 @@ static value_t apply_cl(uint32_t nargs)
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OP(OP_LVARGC)
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i = GET_INT32(ip); ip+=4;
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goto do_vargc;
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OP(OP_LET)
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// last arg is closure environment to use
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nargs--;
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Stack[SP-5] = Stack[SP-4];
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Stack[SP-4] = nargs;
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POPN(1);
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Stack[SP-1] = 0;
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curr_frame = SP;
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NEXT_OP;
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OP(OP_OPTARGS)
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i = GET_INT32(ip); ip+=4;
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n = GET_INT32(ip); ip+=4;
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if (nargs < i)
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lerror(ArgError, "apply: too few arguments");
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if ((int32_t)n > 0) {
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if (nargs > n)
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lerror(ArgError, "apply: too many arguments");
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}
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else n = -n;
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if (n > nargs) {
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n -= nargs;
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SP += n;
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Stack[SP-1] = Stack[SP-n-1];
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Stack[SP-2] = Stack[SP-n-2];
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Stack[SP-3] = nargs+n;
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Stack[SP-4] = Stack[SP-n-4];
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Stack[SP-5] = Stack[SP-n-5];
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curr_frame = SP;
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for(i=0; i < n; i++) {
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Stack[bp+nargs+i] = UNBOUND;
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}
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nargs += n;
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}
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NEXT_OP;
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OP(OP_BRBOUND)
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i = GET_INT32(ip); ip+=4;
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if (captured)
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@ -1038,7 +1004,6 @@ static value_t apply_cl(uint32_t nargs)
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if (v != UNBOUND) ip += (ptrint_t)GET_INT32(ip);
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else ip += 4;
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NEXT_OP;
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OP(OP_NOP) NEXT_OP;
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OP(OP_DUP) SP++; Stack[SP-1] = Stack[SP-2]; NEXT_OP;
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OP(OP_POP) POPN(1); NEXT_OP;
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OP(OP_TCALL)
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@ -1716,7 +1681,6 @@ static value_t apply_cl(uint32_t nargs)
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NEXT_OP;
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OP(OP_CLOSURE)
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OP(OP_COPYENV)
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// build a closure (lambda args body . env)
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if (nargs > 0 && !captured) {
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// save temporary environment to the heap
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@ -1737,17 +1701,15 @@ static value_t apply_cl(uint32_t nargs)
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else {
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PUSH(Stack[bp]); // env has already been captured; share
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}
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if (ip[-1] == OP_CLOSURE) {
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pv = alloc_words(4);
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e = Stack[SP-2]; // closure to copy
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assert(isfunction(e));
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pv[0] = ((value_t*)ptr(e))[0];
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pv[1] = ((value_t*)ptr(e))[1];
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pv[2] = Stack[SP-1]; // env
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pv[3] = ((value_t*)ptr(e))[3];
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POPN(1);
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Stack[SP-1] = tagptr(pv, TAG_FUNCTION);
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}
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pv = alloc_words(4);
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e = Stack[SP-2]; // closure to copy
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assert(isfunction(e));
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pv[0] = ((value_t*)ptr(e))[0];
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pv[1] = ((value_t*)ptr(e))[1];
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pv[2] = Stack[SP-1]; // env
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pv[3] = ((value_t*)ptr(e))[3];
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POPN(1);
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Stack[SP-1] = tagptr(pv, TAG_FUNCTION);
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NEXT_OP;
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OP(OP_TRYCATCH)
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@ -1756,6 +1718,40 @@ static value_t apply_cl(uint32_t nargs)
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Stack[SP-1] = v;
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NEXT_OP;
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OP(OP_OPTARGS)
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i = GET_INT32(ip); ip+=4;
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n = GET_INT32(ip); ip+=4;
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if (nargs < i)
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lerror(ArgError, "apply: too few arguments");
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if ((int32_t)n > 0) {
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if (nargs > n)
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lerror(ArgError, "apply: too many arguments");
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}
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else n = -n;
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if (n > nargs) {
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n -= nargs;
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SP += n;
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Stack[SP-1] = Stack[SP-n-1];
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Stack[SP-2] = Stack[SP-n-2];
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Stack[SP-3] = nargs+n;
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Stack[SP-4] = Stack[SP-n-4];
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Stack[SP-5] = Stack[SP-n-5];
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curr_frame = SP;
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for(i=0; i < n; i++) {
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Stack[bp+nargs+i] = UNBOUND;
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}
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nargs += n;
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}
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NEXT_OP;
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OP(OP_KEYARGS)
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v = fn_vals(Stack[bp-1]);
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v = vector_elt(v, 0);
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i = GET_INT32(ip); ip+=4;
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n = GET_INT32(ip); ip+=4;
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s = GET_INT32(ip); ip+=4;
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nargs = process_keys(v, i, n, abs(s)-(i+n), bp, nargs, s<0);
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NEXT_OP;
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#ifndef USE_COMPUTED_GOTO
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default:
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goto dispatch;
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@ -1794,10 +1790,15 @@ static uint32_t compute_maxstack(uint8_t *code, size_t len)
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n = GET_INT32(ip); ip+=4;
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sp += (n+2);
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break;
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case OP_LET: break;
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case OP_OPTARGS:
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i = abs(GET_INT32(ip)); ip+=4;
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i = GET_INT32(ip); ip+=4;
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n = abs(GET_INT32(ip)); ip+=4;
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sp += (n-i);
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break;
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case OP_KEYARGS:
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i = GET_INT32(ip); ip+=4;
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n = GET_INT32(ip); ip+=4;
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n = abs(GET_INT32(ip)); ip+=4;
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sp += (n-i);
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break;
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case OP_BRBOUND:
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|
@ -1854,7 +1855,7 @@ static uint32_t compute_maxstack(uint8_t *code, size_t len)
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case OP_LOADT: case OP_LOADF: case OP_LOADNIL: case OP_LOAD0:
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case OP_LOAD1: case OP_LOADA0: case OP_LOADA1: case OP_LOADC00:
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case OP_LOADC01: case OP_COPYENV: case OP_DUP:
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case OP_LOADC01: case OP_DUP:
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sp++;
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break;
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|
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|
|
|
@ -101,7 +101,7 @@ typedef struct _symbol_t {
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#define iscbuiltin(x) (iscvalue(x) && (cv_class((cvalue_t*)ptr(x))==builtintype))
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|
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void fl_gc_handle(value_t *pv);
|
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void fl_free_gc_handles(int n);
|
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void fl_free_gc_handles(uint32_t n);
|
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|
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#include "opcodes.h"
|
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|
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|
|
|
@ -1,7 +1,7 @@
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; -*- scheme -*-
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|
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;(if (not (bound? 'top-level-value)) (set! top-level-value %eval))
|
||||
;(if (not (bound? 'set-top-level-value!)) (set! set-top-level-value! set))
|
||||
(if (not (bound? 'top-level-value)) (set! top-level-value %eval))
|
||||
(if (not (bound? 'set-top-level-value!)) (set! set-top-level-value! set))
|
||||
|
||||
;(load "compiler.lsp")
|
||||
|
||||
|
|
|
@ -23,11 +23,11 @@ enum {
|
|||
OP_SETG, OP_SETGL,
|
||||
OP_SETA, OP_SETAL, OP_SETC, OP_SETCL,
|
||||
|
||||
OP_CLOSURE, OP_ARGC, OP_VARGC, OP_TRYCATCH, OP_COPYENV, OP_LET, OP_FOR,
|
||||
OP_CLOSURE, OP_ARGC, OP_VARGC, OP_TRYCATCH, OP_FOR,
|
||||
OP_TAPPLY, OP_ADD2, OP_SUB2, OP_NEG, OP_LARGC, OP_LVARGC,
|
||||
OP_LOADA0, OP_LOADA1, OP_LOADC00, OP_LOADC01, OP_CALLL, OP_TCALLL,
|
||||
OP_BRNE, OP_BRNEL, OP_CADR, OP_BRNN, OP_BRNNL, OP_BRN, OP_BRNL,
|
||||
OP_OPTARGS, OP_BRBOUND,
|
||||
OP_OPTARGS, OP_BRBOUND, OP_KEYARGS,
|
||||
|
||||
OP_BOOL_CONST_T, OP_BOOL_CONST_F, OP_THE_EMPTY_LIST,
|
||||
|
||||
|
@ -37,7 +37,7 @@ enum {
|
|||
#ifdef USE_COMPUTED_GOTO
|
||||
#define VM_LABELS \
|
||||
static void *vm_labels[] = { \
|
||||
&&L_OP_NOP, &&L_OP_DUP, &&L_OP_POP, &&L_OP_CALL, &&L_OP_TCALL, &&L_OP_JMP, \
|
||||
NULL, &&L_OP_DUP, &&L_OP_POP, &&L_OP_CALL, &&L_OP_TCALL, &&L_OP_JMP, \
|
||||
&&L_OP_BRF, &&L_OP_BRT, \
|
||||
&&L_OP_JMPL, &&L_OP_BRFL, &&L_OP_BRTL, &&L_OP_RET, \
|
||||
\
|
||||
|
@ -64,19 +64,18 @@ enum {
|
|||
&&L_OP_SETA, &&L_OP_SETAL, &&L_OP_SETC, &&L_OP_SETCL, \
|
||||
\
|
||||
&&L_OP_CLOSURE, &&L_OP_ARGC, &&L_OP_VARGC, &&L_OP_TRYCATCH, \
|
||||
&&L_OP_COPYENV, \
|
||||
&&L_OP_LET, &&L_OP_FOR, \
|
||||
&&L_OP_FOR, \
|
||||
&&L_OP_TAPPLY, &&L_OP_ADD2, &&L_OP_SUB2, &&L_OP_NEG, &&L_OP_LARGC, \
|
||||
&&L_OP_LVARGC, \
|
||||
&&L_OP_LOADA0, &&L_OP_LOADA1, &&L_OP_LOADC00, &&L_OP_LOADC01, \
|
||||
&&L_OP_CALLL, &&L_OP_TCALLL, &&L_OP_BRNE, &&L_OP_BRNEL, &&L_OP_CADR,\
|
||||
&&L_OP_BRNN, &&L_OP_BRNNL, &&L_OP_BRN, &&L_OP_BRNL, \
|
||||
&&L_OP_OPTARGS, &&L_OP_BRBOUND \
|
||||
&&L_OP_OPTARGS, &&L_OP_BRBOUND, &&L_OP_KEYARGS \
|
||||
}
|
||||
|
||||
#define VM_APPLY_LABELS \
|
||||
static void *vm_apply_labels[] = { \
|
||||
&&L_OP_NOP, &&L_OP_DUP, &&L_OP_POP, &&L_OP_CALL, &&L_OP_TCALL, &&L_OP_JMP, \
|
||||
NULL, &&L_OP_DUP, &&L_OP_POP, &&L_OP_CALL, &&L_OP_TCALL, &&L_OP_JMP, \
|
||||
&&L_OP_BRF, &&L_OP_BRT, \
|
||||
&&L_OP_JMPL, &&L_OP_BRFL, &&L_OP_BRTL, &&L_OP_RET, \
|
||||
\
|
||||
|
|
|
@ -126,6 +126,17 @@
|
|||
(assert (equal? ((lambda ((x 0) . r) (list x r))) '(0 ())))
|
||||
(assert (equal? ((lambda ((x 0) . r) (list x r)) 1 2 3) '(1 (2 3))))
|
||||
|
||||
; keyword arguments
|
||||
(assert (equal? ((lambda (x (a 2) (b: a) . r) (list x a b r)) 1 0 8 4 5)
|
||||
'(1 0 0 (8 4 5))))
|
||||
(assert (equal? ((lambda (x (a 2) (b: a) . r) (list x a b r)) 0 b: 3 1)
|
||||
'(0 2 3 (1))))
|
||||
(define (keys4 (a: 8) (b: 3) (c: 7) (d: 6)) (list a b c d))
|
||||
(assert (equal? (keys4 a: 10) '(10 3 7 6)))
|
||||
(assert (equal? (keys4 b: 10) '(8 10 7 6)))
|
||||
(assert (equal? (keys4 c: 10) '(8 3 10 6)))
|
||||
(assert (equal? (keys4 d: 10) '(8 3 7 10)))
|
||||
|
||||
; ok, a couple end-to-end tests as well
|
||||
(define (fib n) (if (< n 2) n (+ (fib (- n 1)) (fib (- n 2)))))
|
||||
(assert (equal? (fib 20) 6765))
|
||||
|
|
Loading…
Reference in New Issue