changing optional args to allow default values to be computed from
preceding arguments tidying some stuff with keywords
This commit is contained in:
JeffBezanson
parent
eceeddf6d2
commit
ecfd81148f
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@ -135,8 +135,7 @@ static value_t fl_keywordp(value_t *args, u_int32_t nargs)
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{
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argcount("keyword?", nargs, 1);
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symbol_t *sym = tosymbol(args[0], "keyword?");
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char *str = sym->name;
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return fl_is_keyword_name(str, strlen(str)) ? FL_T : FL_F;
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return iskeyword(sym) ? FL_T : FL_F;
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}
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static value_t fl_top_level_value(value_t *args, u_int32_t nargs)
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@ -152,7 +151,7 @@ static value_t fl_set_top_level_value(value_t *args, u_int32_t nargs)
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{
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argcount("set-top-level-value!", nargs, 2);
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symbol_t *sym = tosymbol(args[0], "set-top-level-value!");
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if (!sym->isconst)
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if (!isconstant(sym))
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sym->binding = args[1];
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return args[1];
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}
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@ -187,7 +186,7 @@ static value_t fl_constantp(value_t *args, u_int32_t nargs)
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{
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argcount("constant?", nargs, 1);
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if (issymbol(args[0]))
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return (isconstant(args[0]) ? FL_T : FL_F);
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return (isconstant((symbol_t*)ptr(args[0])) ? FL_T : FL_F);
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if (iscons(args[0])) {
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if (car_(args[0]) == QUOTE)
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return FL_T;
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@ -3,30 +3,30 @@
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(define Instructions
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(let ((e (table))
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(keys
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[:nop :dup :pop :call :tcall :jmp :brf :brt :jmp.l :brf.l :brt.l :ret
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[nop dup pop call tcall jmp brf brt jmp.l brf.l brt.l ret
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:eq? :eqv? :equal? :atom? :not :null? :boolean? :symbol?
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:number? :bound? :pair? :builtin? :vector? :fixnum? :function?
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eq? eqv? equal? atom? not null? boolean? symbol?
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number? bound? pair? builtin? vector? fixnum? function?
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:cons :list :car :cdr :set-car! :set-cdr!
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:apply
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cons list car cdr set-car! set-cdr!
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apply
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:+ :- :* :/ :div0 := :< :compare
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+ - * / div0 = < compare
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:vector :aref :aset!
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vector aref aset!
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:loadt :loadf :loadnil :load0 :load1 :loadi8
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:loadv :loadv.l
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:loadg :loadg.l
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:loada :loada.l :loadc :loadc.l
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:setg :setg.l
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:seta :seta.l :setc :setc.l
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loadt loadf loadnil load0 load1 loadi8
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loadv loadv.l
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loadg loadg.l
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loada loada.l loadc loadc.l
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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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: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
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closure argc vargc trycatch copyenv let 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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dummy_t dummy_f dummy_nil]))
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(for 0 (1- (length keys))
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@ -34,19 +34,19 @@
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(put! e (aref keys i) i)))))
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(define arg-counts
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(table :eq? 2 :eqv? 2
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:equal? 2 :atom? 1
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:not 1 :null? 1
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:boolean? 1 :symbol? 1
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:number? 1 :bound? 1
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:pair? 1 :builtin? 1
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:vector? 1 :fixnum? 1
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:cons 2 :car 1
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:cdr 1 :set-car! 2
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:set-cdr! 2 := 2
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:< 2 :compare 2
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:aref 2 :aset! 3
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:div0 2))
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(table eq? 2 eqv? 2
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equal? 2 atom? 1
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not 1 null? 1
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boolean? 1 symbol? 1
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number? 1 bound? 1
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pair? 1 builtin? 1
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vector? 1 fixnum? 1
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cons 2 car 1
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cdr 1 set-car! 2
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set-cdr! 2 = 2
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< 2 compare 2
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aref 2 aset! 3
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div0 2))
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(define (make-code-emitter) (vector () (table) 0 +inf.0))
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(define (bcode:code b) (aref b 0))
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@ -64,60 +64,60 @@
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(aset! b 2 (+ nconst 1)))))))
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(define (emit e inst . args)
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(if (null? args)
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(if (and (eq? inst :car) (pair? (aref e 0))
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(eq? (car (aref e 0)) :cdr))
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(set-car! (aref e 0) :cadr)
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(if (and (eq? inst 'car) (pair? (aref e 0))
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(eq? (car (aref e 0)) 'cdr))
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(set-car! (aref e 0) 'cadr)
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(aset! e 0 (cons inst (aref e 0))))
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(begin
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(if (memq inst '(:loadv :loadg :setg))
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(if (memq inst '(loadv loadg setg))
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(set! args (list (bcode:indexfor e (car args)))))
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(let ((longform
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(assq inst '((:loadv :loadv.l) (:loadg :loadg.l) (:setg :setg.l)
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(:loada :loada.l) (:seta :seta.l)))))
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(assq inst '((loadv loadv.l) (loadg loadg.l) (setg setg.l)
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(loada loada.l) (seta seta.l)))))
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(if (and longform
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(> (car args) 255))
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(set! inst (cadr longform))))
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(let ((longform
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(assq inst '((:loadc :loadc.l) (:setc :setc.l)))))
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(assq inst '((loadc loadc.l) (setc setc.l)))))
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(if (and longform
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(or (> (car args) 255)
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(> (cadr args) 255)))
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(set! inst (cadr longform))))
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(if (eq? inst :loada)
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(if (eq? inst 'loada)
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(cond ((equal? args '(0))
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(set! inst :loada0)
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(set! inst 'loada0)
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(set! args ()))
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((equal? args '(1))
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(set! inst :loada1)
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(set! inst 'loada1)
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(set! args ()))))
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(if (eq? inst :loadc)
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(if (eq? inst 'loadc)
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(cond ((equal? args '(0 0))
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(set! inst :loadc00)
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(set! inst 'loadc00)
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(set! args ()))
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((equal? args '(0 1))
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(set! inst :loadc01)
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(set! inst 'loadc01)
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(set! args ()))))
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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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((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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(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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((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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(aset! e 0 (nreconc (cons inst args) bc)))))))
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e)
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(define (make-label e) (gensym))
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(define (mark-label e l) (emit e :label l))
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(define (mark-label e l) (emit e 'label l))
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; convert symbolic bytecode representation to a byte array.
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; labels are fixed-up.
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@ -127,13 +127,7 @@
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(long? (>= (+ (length v) ; 1 byte for each entry, plus...
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; at most half the entries in this vector can be
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; instructions accepting 32-bit arguments
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(* 3 (div0 (length v) 2))
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#;(* 3 (count (lambda (i)
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(memq i '(:loadv.l :loadg.l :setg.l
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:loada.l :seta.l :loadc.l
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:setc.l :jmp :brt :brf
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:largc :lvargc)))
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cl)))
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(* 3 (div0 (length v) 2)))
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65536)))
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(let ((n (length v))
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(i 0)
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@ -146,7 +140,7 @@
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(while (< i n)
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(begin
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(set! vi (aref v i))
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(if (eq? vi :label)
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(if (eq? vi 'label)
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(begin (put! label-to-loc (aref v (+ i 1)) (sizeof bcode))
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(set! i (+ i 2)))
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(begin
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@ -155,34 +149,40 @@
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(get Instructions
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(if long?
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(case vi
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(:jmp :jmp.l)
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(:brt :brt.l)
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(:brf :brf.l)
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(:brne :brne.l)
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(:brnn :brnn.l)
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(:brn :brn.l)
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(jmp 'jmp.l)
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(brt 'brt.l)
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(brf 'brf.l)
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(brne 'brne.l)
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(brnn 'brnn.l)
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(brn 'brn.l)
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(else vi))
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vi))))
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(set! i (+ i 1))
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(set! nxt (if (< i n) (aref v i) #f))
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(cond ((memq vi '(:jmp :brf :brt :brne :brnn :brn))
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(cond ((memq vi '(jmp brf brt brne brnn brn))
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(put! fixup-to-label (sizeof bcode) nxt)
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(io.write bcode ((if long? int32 int16) 0))
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(set! i (+ i 1)))
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((eq? vi 'brbound)
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(io.write bcode (int32 nxt))
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(set! i (+ i 1))
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(put! fixup-to-label (sizeof bcode) (aref v i))
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(io.write bcode (int32 0))
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(set! i (+ i 1)))
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((number? nxt)
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(case vi
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((:loadv.l :loadg.l :setg.l :loada.l :seta.l
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:largc :lvargc :call.l :tcall.l :optargs)
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((loadv.l loadg.l setg.l loada.l seta.l
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largc lvargc call.l tcall.l)
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(io.write bcode (int32 nxt))
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(set! i (+ i 1)))
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((:loadc :setc) ; 2 uint8 args
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((loadc setc) ; 2 uint8 args
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(io.write bcode (uint8 nxt))
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(set! i (+ i 1))
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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) ; 2 int32 args
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((loadc.l setc.l optargs) ; 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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@ -245,7 +245,7 @@
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(else
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(if (and (constant? s)
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(printable? (top-level-value s)))
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(emit g :loadv (top-level-value s))
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(emit g 'loadv (top-level-value s))
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(emit g (aref Is 2) s))))))
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(define (compile-if g env tail? x)
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@ -262,11 +262,11 @@
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(compile-in g env tail? else))
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(else
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(compile-in g env #f test)
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(emit g :brf elsel)
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(emit g 'brf elsel)
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(compile-in g env tail? then)
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(if tail?
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(emit g :ret)
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(emit g :jmp endl))
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(emit g 'ret)
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(emit g 'jmp endl))
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(mark-label g elsel)
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(compile-in g env tail? else)
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(mark-label g endl)))))
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@ -277,14 +277,14 @@
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(compile-in g env tail? (car forms)))
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(else
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(compile-in g env #f (car forms))
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(emit g :pop)
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(emit g 'pop)
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(compile-begin g env tail? (cdr forms)))))
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(define (compile-prog1 g env x)
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(compile-in g env #f (cadr x))
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(if (pair? (cddr x))
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(begin (compile-begin g env #f (cddr x))
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(emit g :pop))))
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(emit g 'pop))))
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(define (compile-while g env cond body)
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(let ((top (make-label g))
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@ -292,10 +292,10 @@
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(compile-in g env #f #f)
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(mark-label g top)
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(compile-in g env #f cond)
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(emit g :brf end)
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(emit g :pop)
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(emit g 'brf end)
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(emit g 'pop)
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(compile-in g env #f body)
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(emit g :jmp top)
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(emit g 'jmp top)
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(mark-label g end)))
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(define (1arg-lambda? func)
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@ -310,7 +310,7 @@
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(begin (compile-in g env #f lo)
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(compile-in g env #f hi)
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(compile-in g env #f func)
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(emit g :for))
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(emit g 'for))
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(error "for: third form must be a 1-argument lambda")))
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(define (compile-short-circuit g env tail? forms default branch)
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@ -319,16 +319,16 @@
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(else
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(let ((end (make-label g)))
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(compile-in g env #f (car forms))
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(emit g :dup)
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(emit g 'dup)
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(emit g branch end)
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(emit g :pop)
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(emit g 'pop)
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(compile-short-circuit g env tail? (cdr forms) default branch)
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(mark-label g end)))))
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(define (compile-and g env tail? forms)
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(compile-short-circuit g env tail? forms #t :brf))
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(compile-short-circuit g env tail? forms #t 'brf))
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(define (compile-or g env tail? forms)
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(compile-short-circuit g env tail? forms #f :brt))
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(compile-short-circuit g env tail? forms #f 'brt))
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(define (compile-arglist g env lst)
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(for-each (lambda (a)
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@ -337,10 +337,10 @@
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(length lst))
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(define (argc-error head count)
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(error (string "compile error: " head " expects " count
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(error "compile error: " head " expects " count
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(if (= count 1)
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" argument."
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" arguments."))))
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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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@ -356,28 +356,28 @@
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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 (string "apply: incorrect number of arguments to " 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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(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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(emit g 'copyenv)
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(emit g (if tail? 'tcall 'call) (+ 1 nargs)))))
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(define builtin->instruction
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(let ((b2i (table number? :number? cons :cons
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fixnum? :fixnum? equal? :equal?
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eq? :eq? symbol? :symbol?
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div0 :div0 builtin? :builtin?
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aset! :aset! - :- boolean? :boolean? not :not
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apply :apply atom? :atom?
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set-cdr! :set-cdr! / :/
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function? :function? vector :vector
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list :list bound? :bound?
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< :< * :* cdr :cdr null? :null?
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+ :+ eqv? :eqv? compare :compare aref :aref
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set-car! :set-car! car :car
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pair? :pair? = := vector? :vector?)))
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(let ((b2i (table number? 'number? cons 'cons
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fixnum? 'fixnum? equal? 'equal?
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eq? 'eq? symbol? 'symbol?
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div0 'div0 builtin? 'builtin?
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aset! 'aset! - '- boolean? 'boolean? not 'not
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apply 'apply atom? 'atom?
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set-cdr! 'set-cdr! / '/
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function? 'function? vector 'vector
|
||||
list 'list bound? 'bound?
|
||||
< '< * '* cdr 'cdr null? 'null?
|
||||
+ '+ eqv? 'eqv? compare 'compare aref 'aref
|
||||
set-car! 'set-car! car 'car
|
||||
pair? 'pair? = '= vector? 'vector?)))
|
||||
(lambda (b)
|
||||
(get b2i b #f))))
|
||||
|
||||
|
|
@ -387,25 +387,25 @@
|
|||
(not (length= (cdr x) count)))
|
||||
(argc-error head count))
|
||||
(case b ; handle special cases of vararg builtins
|
||||
(:list (if (= nargs 0) (emit g :loadnil) (emit g b nargs)))
|
||||
(:+ (cond ((= nargs 0) (emit g :load0))
|
||||
((= nargs 2) (emit g :add2))
|
||||
(list (if (= nargs 0) (emit g 'loadnil) (emit g b nargs)))
|
||||
(+ (cond ((= nargs 0) (emit g 'load0))
|
||||
((= nargs 2) (emit g 'add2))
|
||||
(else (emit g b nargs))))
|
||||
(:- (cond ((= nargs 0) (argc-error head 1))
|
||||
((= nargs 1) (emit g :neg))
|
||||
((= nargs 2) (emit g :sub2))
|
||||
(- (cond ((= nargs 0) (argc-error head 1))
|
||||
((= nargs 1) (emit g 'neg))
|
||||
((= nargs 2) (emit g 'sub2))
|
||||
(else (emit g b nargs))))
|
||||
(:* (if (= nargs 0) (emit g :load1)
|
||||
(* (if (= nargs 0) (emit g 'load1)
|
||||
(emit g b nargs)))
|
||||
(:/ (if (= nargs 0)
|
||||
(/ (if (= nargs 0)
|
||||
(argc-error head 1)
|
||||
(emit g b nargs)))
|
||||
(:vector (if (= nargs 0)
|
||||
(emit g :loadv [])
|
||||
(vector (if (= nargs 0)
|
||||
(emit g 'loadv [])
|
||||
(emit g b nargs)))
|
||||
(:apply (if (< nargs 2)
|
||||
(apply (if (< nargs 2)
|
||||
(argc-error head 2)
|
||||
(emit g (if tail? :tapply :apply) nargs)))
|
||||
(emit g (if tail? 'tapply 'apply) nargs)))
|
||||
(else (emit g b)))))
|
||||
|
||||
(define (compile-call g env tail? x)
|
||||
|
|
@ -422,7 +422,7 @@
|
|||
; more than 255 arguments, need long versions of instructions
|
||||
(begin (compile-in g env #f head)
|
||||
(let ((nargs (compile-arglist g env (cdr x))))
|
||||
(emit g (if tail? :tcall.l :call.l) nargs)))
|
||||
(emit g (if tail? 'tcall.l 'call.l) nargs)))
|
||||
(let ((b (and (builtin? head)
|
||||
(builtin->instruction head))))
|
||||
(if (and (eq? head 'cadr)
|
||||
|
|
@ -430,14 +430,14 @@
|
|||
(equal? (top-level-value 'cadr) cadr)
|
||||
(length= x 2))
|
||||
(begin (compile-in g env #f (cadr x))
|
||||
(emit g :cadr))
|
||||
(emit g 'cadr))
|
||||
(begin
|
||||
(if (not b)
|
||||
(compile-in g env #f head))
|
||||
(let ((nargs (compile-arglist g env (cdr x))))
|
||||
(if b
|
||||
(compile-builtin-call g env tail? x head b nargs)
|
||||
(emit g (if tail? :tcall :call) nargs))))))))))
|
||||
(emit g (if tail? 'tcall 'call) nargs))))))))))
|
||||
|
||||
(define (expand-define form body)
|
||||
(if (symbol? form)
|
||||
|
|
@ -448,41 +448,41 @@
|
|||
(define (fits-i8 x) (and (fixnum? x) (>= x -128) (<= x 127)))
|
||||
|
||||
(define (compile-in g env tail? x)
|
||||
(cond ((symbol? x) (compile-sym g env x [:loada :loadc :loadg]))
|
||||
(cond ((symbol? x) (compile-sym g env x [loada loadc loadg]))
|
||||
((atom? x)
|
||||
(cond ((eq? x 0) (emit g :load0))
|
||||
((eq? x 1) (emit g :load1))
|
||||
((eq? x #t) (emit g :loadt))
|
||||
((eq? x #f) (emit g :loadf))
|
||||
((eq? x ()) (emit g :loadnil))
|
||||
((fits-i8 x) (emit g :loadi8 x))
|
||||
(else (emit g :loadv x))))
|
||||
(cond ((eq? x 0) (emit g 'load0))
|
||||
((eq? x 1) (emit g 'load1))
|
||||
((eq? x #t) (emit g 'loadt))
|
||||
((eq? x #f) (emit g 'loadf))
|
||||
((eq? x ()) (emit g 'loadnil))
|
||||
((fits-i8 x) (emit g 'loadi8 x))
|
||||
(else (emit g 'loadv x))))
|
||||
(else
|
||||
(case (car x)
|
||||
(quote (emit g :loadv (cadr x)))
|
||||
(quote (emit g 'loadv (cadr x)))
|
||||
(if (compile-if g env tail? x))
|
||||
(begin (compile-begin g env tail? (cdr x)))
|
||||
(prog1 (compile-prog1 g env x))
|
||||
(lambda (receive (the-f dept) (compile-f- env x)
|
||||
(begin (emit g :loadv the-f)
|
||||
(begin (emit g 'loadv the-f)
|
||||
(bcode:cdepth g dept)
|
||||
(if (< dept (nnn env))
|
||||
(emit g :closure)))))
|
||||
(emit g 'closure)))))
|
||||
(and (compile-and g env tail? (cdr x)))
|
||||
(or (compile-or g env tail? (cdr x)))
|
||||
(while (compile-while g env (cadr x) (cons 'begin (cddr x))))
|
||||
(for (compile-for g env (cadr x) (caddr x) (cadddr x)))
|
||||
(return (compile-in g env #t (cadr x))
|
||||
(emit g :ret))
|
||||
(emit g 'ret))
|
||||
(set! (compile-in g env #f (caddr x))
|
||||
(compile-sym g env (cadr x) [:seta :setc :setg]))
|
||||
(compile-sym g env (cadr x) [seta setc setg]))
|
||||
(define (compile-in g env tail?
|
||||
(expand-define (cadr x) (cddr x))))
|
||||
(trycatch (compile-in g env #f `(lambda () ,(cadr x)))
|
||||
(unless (1arg-lambda? (caddr x))
|
||||
(error "trycatch: second form must be a 1-argument lambda"))
|
||||
(compile-in g env #f (caddr x))
|
||||
(emit g :trycatch))
|
||||
(emit g 'trycatch))
|
||||
(else (compile-app g env tail? x))))))
|
||||
|
||||
(define (compile-f env f . let?)
|
||||
|
|
@ -516,19 +516,29 @@
|
|||
(or (symbol? (car l))
|
||||
(and (pair? (car l))
|
||||
(or (every pair? (cdr l))
|
||||
(error (string "compile error: invalid argument list "
|
||||
o ". optional arguments must come last."))))
|
||||
(error (string "compile error: invalid formal argument " (car l)
|
||||
" in list " o)))
|
||||
(error "compile error: invalid argument list "
|
||||
o ". optional arguments must come last.")))
|
||||
(error "compile error: invalid formal argument " (car l)
|
||||
" in list " o))
|
||||
(check-formals (cdr l) o))
|
||||
(if (eq? l o)
|
||||
(error (string "compile error: invalid argument list " o))
|
||||
(error (string "compile error: invalid formal argument " l
|
||||
" in list " o)))))
|
||||
(error "compile error: invalid argument list " o)
|
||||
(error "compile error: invalid formal argument " l " in list " o))))
|
||||
(check-formals l l)
|
||||
(map (lambda (s) (if (pair? s) (car s) s))
|
||||
(to-proper l)))
|
||||
|
||||
(define (emit-optional-arg-inits g env opta vars i)
|
||||
; i is the lexical var index of the opt arg to process next
|
||||
(if (pair? opta)
|
||||
(let ((nxt (make-label g)))
|
||||
(emit g 'brbound i nxt)
|
||||
(compile-in g (cons (list-head vars i) env) #f (cadar opta))
|
||||
(emit g 'seta i)
|
||||
(emit g 'pop)
|
||||
(mark-label g nxt)
|
||||
(emit-optional-arg-inits g env (cdr opta) vars (+ i 1)))))
|
||||
|
||||
(define compile-f-
|
||||
(let ((*defines-processed-token* (gensym)))
|
||||
; to eval a top-level expression we need to avoid internal define
|
||||
|
|
@ -553,31 +563,33 @@
|
|||
|
||||
(let ((g (make-code-emitter))
|
||||
(args (cadr f))
|
||||
(atail (lastcdr (cadr f)))
|
||||
(vars (lambda-vars (cadr f)))
|
||||
(opta (filter pair? (cadr f)))
|
||||
(name (if (eq? (lastcdr f) *defines-processed-token*)
|
||||
'lambda
|
||||
(lastcdr f))))
|
||||
(let ((nargs (if (atom? args) 0 (length args))))
|
||||
(let* ((nargs (if (atom? args) 0 (length args)))
|
||||
(nreq (- nargs (length opta))))
|
||||
|
||||
; emit argument checking prologue
|
||||
(if (not (null? opta))
|
||||
(begin (bcode:indexfor g (list->vector (map cadr opta)))
|
||||
(emit g :optargs (- nargs (length opta)))))
|
||||
(begin (emit g 'optargs (if (null? atail) nreq (- nreq)) nargs)
|
||||
(emit-optional-arg-inits g env opta vars nreq)))
|
||||
|
||||
(cond ((not (null? let?)) (emit g :let))
|
||||
((> nargs 255) (emit g (if (null? (lastcdr args))
|
||||
:largc :lvargc)
|
||||
(cond ((not (null? let?)) (emit g 'let))
|
||||
((> nargs 255) (emit g (if (null? atail)
|
||||
'largc 'lvargc)
|
||||
nargs))
|
||||
((null? (lastcdr args)) (emit g :argc nargs))
|
||||
(else (emit g :vargc nargs)))
|
||||
((not (null? atail)) (emit g 'vargc nargs))
|
||||
((null? opta) (emit g 'argc nargs)))
|
||||
|
||||
; compile body and return
|
||||
(compile-in g (cons vars env) #t
|
||||
(if (eq? (lastcdr f) *defines-processed-token*)
|
||||
(caddr f)
|
||||
(lambda-body f)))
|
||||
(emit g :ret)
|
||||
(emit g 'ret)
|
||||
(values (function (encode-byte-code (bcode:code g))
|
||||
(const-to-idx-vec g) name)
|
||||
(aref g 3)))))))
|
||||
|
|
@ -623,43 +635,49 @@
|
|||
(if (> i 4) (newline))
|
||||
(dotimes (xx lev) (princ "\t"))
|
||||
(princ (hex5 (- i 4)) ": "
|
||||
(string.tail (string inst) 1) "\t")
|
||||
(string inst) "\t")
|
||||
(set! i (+ i 1))
|
||||
(case inst
|
||||
((:loadv.l :loadg.l :setg.l)
|
||||
((loadv.l loadg.l setg.l)
|
||||
(print-val (aref vals (ref-int32-LE code i)))
|
||||
(set! i (+ i 4)))
|
||||
|
||||
((:loadv :loadg :setg)
|
||||
((loadv loadg setg)
|
||||
(print-val (aref vals (aref code i)))
|
||||
(set! i (+ i 1)))
|
||||
|
||||
((:loada :seta :call :tcall :list :+ :- :* :/ :vector
|
||||
:argc :vargc :loadi8 :apply :tapply)
|
||||
((loada seta call tcall list + - * / vector
|
||||
argc vargc loadi8 apply tapply)
|
||||
(princ (number->string (aref code i)))
|
||||
(set! i (+ i 1)))
|
||||
|
||||
((:loada.l :seta.l :largc :lvargc :call.l :tcall.l :optargs)
|
||||
((loada.l seta.l largc lvargc call.l tcall.l)
|
||||
(princ (number->string (ref-int32-LE code i)))
|
||||
(set! i (+ i 4)))
|
||||
|
||||
((:loadc :setc)
|
||||
((loadc setc)
|
||||
(princ (number->string (aref code i)) " ")
|
||||
(set! i (+ i 1))
|
||||
(princ (number->string (aref code i)))
|
||||
(set! i (+ i 1)))
|
||||
|
||||
((:loadc.l :setc.l)
|
||||
((loadc.l setc.l optargs)
|
||||
(princ (number->string (ref-int32-LE code i)) " ")
|
||||
(set! i (+ i 4))
|
||||
(princ (number->string (ref-int32-LE code i)))
|
||||
(set! i (+ i 4)))
|
||||
|
||||
((:jmp :brf :brt :brne :brnn :brn)
|
||||
((brbound)
|
||||
(princ (number->string (ref-int32-LE code i)) " ")
|
||||
(set! i (+ i 4))
|
||||
(princ "@" (hex5 (+ i -4 (ref-int32-LE code i))))
|
||||
(set! i (+ i 4)))
|
||||
|
||||
((jmp brf brt brne brnn brn)
|
||||
(princ "@" (hex5 (+ i -4 (ref-int16-LE code i))))
|
||||
(set! i (+ i 2)))
|
||||
|
||||
((:jmp.l :brf.l :brt.l :brne.l :brnn.l :brn.l)
|
||||
((jmp.l brf.l brt.l brne.l brnn.l brn.l)
|
||||
(princ "@" (hex5 (+ i -4 (ref-int32-LE code i))))
|
||||
(set! i (+ i 4)))
|
||||
|
||||
|
|
|
|||
File diff suppressed because one or more lines are too long
|
|
@ -237,13 +237,14 @@ static symbol_t *mk_symbol(char *str)
|
|||
sym = (symbol_t*)malloc(sizeof(symbol_t)-sizeof(void*) + len + 1);
|
||||
assert(((uptrint_t)sym & 0x7) == 0); // make sure malloc aligns 8
|
||||
sym->left = sym->right = NULL;
|
||||
sym->flags = 0;
|
||||
if (fl_is_keyword_name(str, len)) {
|
||||
value_t s = tagptr(sym, TAG_SYM);
|
||||
setc(s, s);
|
||||
sym->flags |= 0x2;
|
||||
}
|
||||
else {
|
||||
sym->binding = UNBOUND;
|
||||
sym->isconst = 0;
|
||||
}
|
||||
sym->type = sym->dlcache = NULL;
|
||||
sym->hash = memhash32(str, len)^0xAAAAAAAA;
|
||||
|
|
@ -932,29 +933,42 @@ static value_t apply_cl(uint32_t nargs)
|
|||
curr_frame = SP;
|
||||
NEXT_OP;
|
||||
OP(OP_OPTARGS)
|
||||
i = GET_INT32(ip); ip+=4;
|
||||
n = GET_INT32(ip); ip+=4;
|
||||
v = fn_vals(Stack[bp-1]);
|
||||
v = vector_elt(v, 0);
|
||||
if (nargs >= n) { // if we have all required args
|
||||
s = vector_size(v);
|
||||
n += s;
|
||||
if (nargs < n) { // but not all optional args
|
||||
i = n - nargs;
|
||||
SP += i;
|
||||
Stack[SP-1] = Stack[SP-i-1];
|
||||
Stack[SP-2] = Stack[SP-i-2];
|
||||
Stack[SP-3] = Stack[SP-i-3];
|
||||
Stack[SP-4] = Stack[SP-i-4];
|
||||
Stack[SP-5] = Stack[SP-i-5];
|
||||
if ((int32_t)i < 0) {
|
||||
if (nargs < -i)
|
||||
lerror(ArgError, "apply: too few arguments");
|
||||
}
|
||||
else if (nargs < i) {
|
||||
lerror(ArgError, "apply: too few arguments");
|
||||
}
|
||||
else if (nargs > n) {
|
||||
lerror(ArgError, "apply: too many arguments");
|
||||
}
|
||||
if (n > nargs) {
|
||||
n -= nargs;
|
||||
SP += n;
|
||||
Stack[SP-1] = Stack[SP-n-1];
|
||||
Stack[SP-2] = Stack[SP-n-2];
|
||||
Stack[SP-3] = nargs+n;
|
||||
Stack[SP-4] = Stack[SP-n-4];
|
||||
Stack[SP-5] = Stack[SP-n-5];
|
||||
curr_frame = SP;
|
||||
s = s - i;
|
||||
for(n=0; n < i; n++) {
|
||||
Stack[bp+nargs+n] = vector_elt(v, s+n);
|
||||
}
|
||||
nargs += i;
|
||||
for(i=0; i < n; i++) {
|
||||
Stack[bp+nargs+i] = UNBOUND;
|
||||
}
|
||||
nargs += n;
|
||||
}
|
||||
NEXT_OP;
|
||||
OP(OP_BRBOUND)
|
||||
i = GET_INT32(ip); ip+=4;
|
||||
if (captured)
|
||||
v = vector_elt(Stack[bp], i);
|
||||
else
|
||||
v = Stack[bp+i];
|
||||
if (v != UNBOUND) ip += (ptrint_t)GET_INT32(ip);
|
||||
else ip += 4;
|
||||
NEXT_OP;
|
||||
OP(OP_NOP) NEXT_OP;
|
||||
OP(OP_DUP) SP++; Stack[SP-1] = Stack[SP-2]; NEXT_OP;
|
||||
OP(OP_POP) POPN(1); NEXT_OP;
|
||||
|
|
@ -1525,7 +1539,7 @@ static value_t apply_cl(uint32_t nargs)
|
|||
assert(issymbol(v));
|
||||
sym = (symbol_t*)ptr(v);
|
||||
v = Stack[SP-1];
|
||||
if (!sym->isconst)
|
||||
if (!isconstant(sym))
|
||||
sym->binding = v;
|
||||
NEXT_OP;
|
||||
|
||||
|
|
@ -1686,11 +1700,11 @@ static value_t apply_cl(uint32_t nargs)
|
|||
#endif
|
||||
}
|
||||
|
||||
static uint32_t compute_maxstack(uint8_t *code, size_t len, value_t vals)
|
||||
static uint32_t compute_maxstack(uint8_t *code, size_t len)
|
||||
{
|
||||
uint8_t *ip = code+4, *end = code+len;
|
||||
uint8_t op;
|
||||
uint32_t n, sp = 0, maxsp = 0;
|
||||
uint32_t i, n, sp = 0, maxsp = 0;
|
||||
|
||||
while (1) {
|
||||
if ((int32_t)sp > (int32_t)maxsp) maxsp = sp;
|
||||
|
|
@ -1713,10 +1727,12 @@ static uint32_t compute_maxstack(uint8_t *code, size_t len, value_t vals)
|
|||
break;
|
||||
case OP_LET: break;
|
||||
case OP_OPTARGS:
|
||||
ip += 4;
|
||||
assert(isvector(vals));
|
||||
if (vector_size(vals) > 0)
|
||||
sp += vector_size(vector_elt(vals, 0));
|
||||
i = abs(GET_INT32(ip)); ip+=4;
|
||||
n = GET_INT32(ip); ip+=4;
|
||||
sp += (n-i);
|
||||
break;
|
||||
case OP_BRBOUND:
|
||||
ip+=8;
|
||||
break;
|
||||
|
||||
case OP_TCALL: case OP_CALL:
|
||||
|
|
@ -1848,13 +1864,13 @@ static value_t fl_function(value_t *args, uint32_t nargs)
|
|||
cvalue_t *arr = (cvalue_t*)ptr(args[0]);
|
||||
cv_pin(arr);
|
||||
char *data = cv_data(arr);
|
||||
if (data[4] >= N_OPCODES) {
|
||||
if ((uint8_t)data[4] >= N_OPCODES) {
|
||||
// read syntax, shifted 48 for compact text representation
|
||||
size_t i, sz = cv_len(arr);
|
||||
for(i=0; i < sz; i++)
|
||||
data[i] -= 48;
|
||||
}
|
||||
uint32_t ms = compute_maxstack((uint8_t*)data, cv_len(arr), args[1]);
|
||||
uint32_t ms = compute_maxstack((uint8_t*)data, cv_len(arr));
|
||||
PUT_INT32(data, ms);
|
||||
function_t *fn = (function_t*)alloc_words(4);
|
||||
value_t fv = tagptr(fn, TAG_FUNCTION);
|
||||
|
|
|
|||
|
|
@ -15,7 +15,7 @@ typedef struct {
|
|||
} cons_t;
|
||||
|
||||
typedef struct _symbol_t {
|
||||
value_t isconst;
|
||||
uptrint_t flags;
|
||||
value_t binding; // global value binding
|
||||
struct _fltype_t *type;
|
||||
uint32_t hash;
|
||||
|
|
@ -87,9 +87,10 @@ typedef struct _symbol_t {
|
|||
#define fn_name(f) (((value_t*)ptr(f))[3])
|
||||
|
||||
#define set(s, v) (((symbol_t*)ptr(s))->binding = (v))
|
||||
#define setc(s, v) do { ((symbol_t*)ptr(s))->isconst = 1; \
|
||||
#define setc(s, v) do { ((symbol_t*)ptr(s))->flags |= 1; \
|
||||
((symbol_t*)ptr(s))->binding = (v); } while (0)
|
||||
#define isconstant(s) (((symbol_t*)ptr(s))->isconst)
|
||||
#define isconstant(s) ((s)->flags&0x1)
|
||||
#define iskeyword(s) ((s)->flags&0x2)
|
||||
#define symbol_value(s) (((symbol_t*)ptr(s))->binding)
|
||||
#define ismanaged(v) ((((unsigned char*)ptr(v)) >= fromspace) && \
|
||||
(((unsigned char*)ptr(v)) < fromspace+heapsize))
|
||||
|
|
|
|||
|
|
@ -27,7 +27,7 @@ enum {
|
|||
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_OPTARGS, OP_BRBOUND,
|
||||
|
||||
OP_BOOL_CONST_T, OP_BOOL_CONST_F, OP_THE_EMPTY_LIST,
|
||||
|
||||
|
|
@ -70,7 +70,8 @@ enum {
|
|||
&&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_BRNN, &&L_OP_BRNNL, &&L_OP_BRN, &&L_OP_BRNL, \
|
||||
&&L_OP_OPTARGS, &&L_OP_BRBOUND \
|
||||
}
|
||||
|
||||
#define VM_APPLY_LABELS \
|
||||
|
|
|
|||
|
|
@ -280,3 +280,17 @@
|
|||
lastcdr to-proper reverse reverse! list->vector
|
||||
table.foreach list-head list-tail assq memq assoc member
|
||||
assv memv nreconc bq-process))
|
||||
|
||||
(define (filt1 pred lst)
|
||||
(define (filt1- pred lst accum)
|
||||
(if (null? lst) accum
|
||||
(if (pred (car lst))
|
||||
(filt1- pred (cdr lst) (cons (car lst) accum))
|
||||
(filt1- pred (cdr lst) accum))))
|
||||
(filt1- pred lst ()))
|
||||
|
||||
(define (filto pred lst (accum ()))
|
||||
(if (atom? lst) accum
|
||||
(if (pred (car lst))
|
||||
(filto pred (cdr lst) (cons (car lst) accum))
|
||||
(filto pred (cdr lst) accum))))
|
||||
|
|
|
|||
|
|
@ -1128,3 +1128,25 @@ typedef struct {
|
|||
uint32_t SP;
|
||||
uint32_t curr_frame;
|
||||
} stackseg_t;
|
||||
|
||||
-----------------------------------------------------------------------------
|
||||
|
||||
optional and keyword args:
|
||||
|
||||
check nargs >= #required
|
||||
grow frame by ntotal-nargs ; ntotal = #req+#opt+#kw
|
||||
(sort keyword args into their places)
|
||||
branch if arg bound around initializer for each opt arg
|
||||
|
||||
example: (lambda (a (b 0) (c b)))
|
||||
|
||||
minargs 1
|
||||
framesize 3
|
||||
brbound 1 L1
|
||||
load0
|
||||
seta 0
|
||||
L1:
|
||||
brbound 2 L2
|
||||
loada 1
|
||||
seta 2
|
||||
L2:
|
||||
|
|
|
|||
Loading…
Reference in New Issue