scm_t_bits scm_tc16_program;
static SCM zero_vector;
+static SCM write_program = SCM_BOOL_F;
SCM
scm_c_make_program (void *addr, size_t size, SCM holder)
return scm_vm_apply (scm_the_vm (), program, args);
}
+static int
+program_print (SCM program, SCM port, scm_print_state *pstate)
+{
+ if (SCM_FALSEP (write_program))
+ write_program = scm_module_local_variable
+ (scm_c_resolve_module ("system vm program"),
+ scm_from_locale_symbol ("write-program"));
+
+ if (SCM_FALSEP (write_program))
+ return scm_smob_print (program, port, pstate);
+
+ scm_call_2 (SCM_VARIABLE_REF (write_program), program, port);
+ return 1;
+}
+
\f
/*
* Scheme interface
scm_set_smob_mark (scm_tc16_program, program_mark);
scm_set_smob_free (scm_tc16_program, program_free);
scm_set_smob_apply (scm_tc16_program, program_apply, 0, 0, 1);
+ scm_set_smob_print (scm_tc16_program, program_print);
}
void
((1) (vector (abbrev (vector-ref x 0))))
(else (vector (abbrev (vector-ref x 0)) '...))))
(else x)))
- (abbrev (cons (program-name frame) (frame-arguments frame))))
+ (abbrev (cons (frame-program-name frame) (frame-arguments frame))))
(define (print-frame-chain-as-backtrace frames)
(if (null? frames)
'no-file
frames))))
-(define (program-name frame)
+(define (frame-program-name frame)
(let ((prog (frame-program frame))
(link (frame-dynamic-link frame)))
- (or (object-property prog 'name)
+ (or (program-name prog)
+ (object-property prog 'name)
(and (heap-frame? link) (frame-address link)
(frame-object-name link (1- (frame-address link)) prog))
(hash-fold (lambda (s v d) (if (eq? prog (variable-ref v)) s d))
(frame-external-set! frame (binding:index binding) val)
(frame-local-set! frame (binding:index binding) val)))
+;; FIXME handle #f program-bindings return
(define (frame-bindings frame addr)
(do ((bs (program-bindings (frame-program frame)) (cdr bs))
(ls '() (if (cdar bs) (cons (cdar bs) ls) (cdr ls))))
source:addr source:line source:column source:file
program-bindings program-sources
program-properties program-property program-documentation
+ program-name
program-arity program-external-set! program-meta
program-bytecode program? program-objects
(define (program-bindings prog)
(cond ((program-meta prog) => (curry1 car))
- (else '())))
+ (else #f)))
(define (source:addr source)
(car source))
(define (program-documentation prog)
(assq-ref (program-properties prog) 'documentation))
+(define (program-name prog)
+ (assq-ref (program-properties prog) 'name))
+
+(define (program-bindings-as-lambda-list prog)
+ (let ((bindings (program-bindings prog))
+ (nargs (arity:nargs (program-arity prog)))
+ (rest? (not (zero? (arity:nrest (program-arity prog))))))
+ (if (not bindings)
+ (if rest? (cons (1- nargs) 1) (list nargs))
+ (let ((arg-names (map binding:name (cdar bindings))))
+ (if rest?
+ (apply cons* arg-names)
+ arg-names)))))
+
+(define (write-program prog port)
+ (format port "#<program ~a ~a>"
+ (or (program-name prog)
+ (number->string (object-address prog) 16))
+ (program-bindings-as-lambda-list prog)))