-/*
- * Copyright © 2016 Keith Packard <keithp@keithp.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- */
-
-#include "ao_scheme.h"
-#include <limits.h>
-#include <math.h>
-
-static int
-builtin_size(void *addr)
-{
- (void) addr;
- return sizeof (struct ao_scheme_builtin);
-}
-
-static void
-builtin_mark(void *addr)
-{
- (void) addr;
-}
-
-static void
-builtin_move(void *addr)
-{
- (void) addr;
-}
-
-const struct ao_scheme_type ao_scheme_builtin_type = {
- .size = builtin_size,
- .mark = builtin_mark,
- .move = builtin_move
-};
-
-#ifdef AO_SCHEME_MAKE_CONST
-
-#define AO_SCHEME_BUILTIN_CASENAME
-#include "ao_scheme_builtin.h"
-
-char *ao_scheme_args_name(uint8_t args) {
- args &= AO_SCHEME_FUNC_MASK;
- switch (args) {
- case AO_SCHEME_FUNC_LAMBDA: return ao_scheme_poly_atom(_ao_scheme_atom_lambda)->name;
- case AO_SCHEME_FUNC_NLAMBDA: return ao_scheme_poly_atom(_ao_scheme_atom_nlambda)->name;
- case AO_SCHEME_FUNC_MACRO: return ao_scheme_poly_atom(_ao_scheme_atom_macro)->name;
- default: return (char *) "???";
- }
-}
-#else
-
-#define AO_SCHEME_BUILTIN_ARRAYNAME
-#include "ao_scheme_builtin.h"
-
-static char *
-ao_scheme_builtin_name(enum ao_scheme_builtin_id b) {
- if (b < _builtin_last)
- return ao_scheme_poly_atom(builtin_names[b])->name;
- return (char *) "???";
-}
-
-static const ao_poly ao_scheme_args_atoms[] = {
- [AO_SCHEME_FUNC_LAMBDA] = _ao_scheme_atom_lambda,
- [AO_SCHEME_FUNC_NLAMBDA] = _ao_scheme_atom_nlambda,
- [AO_SCHEME_FUNC_MACRO] = _ao_scheme_atom_macro,
-};
-
-char *
-ao_scheme_args_name(uint8_t args)
-{
- args &= AO_SCHEME_FUNC_MASK;
- if (args < sizeof ao_scheme_args_atoms / sizeof ao_scheme_args_atoms[0])
- return ao_scheme_poly_atom(ao_scheme_args_atoms[args])->name;
- return (char *) "(unknown)";
-}
-#endif
-
-void
-ao_scheme_builtin_write(ao_poly b, bool write)
-{
- struct ao_scheme_builtin *builtin = ao_scheme_poly_builtin(b);
- (void) write;
- printf("%s", ao_scheme_builtin_name(builtin->func));
-}
-
-ao_poly
-ao_scheme_check_argc(ao_poly name, struct ao_scheme_cons *cons, int min, int max)
-{
- int argc = 0;
-
- while (cons && argc <= max) {
- argc++;
- cons = ao_scheme_cons_cdr(cons);
- }
- if (argc < min || argc > max)
- return ao_scheme_error(AO_SCHEME_INVALID, "%s: invalid arg count", ao_scheme_poly_atom(name)->name);
- return _ao_scheme_bool_true;
-}
-
-ao_poly
-ao_scheme_arg(struct ao_scheme_cons *cons, int argc)
-{
- if (!cons)
- return AO_SCHEME_NIL;
- while (argc--) {
- if (!cons)
- return AO_SCHEME_NIL;
- cons = ao_scheme_cons_cdr(cons);
- }
- return cons->car;
-}
-
-ao_poly
-ao_scheme_check_argt(ao_poly name, struct ao_scheme_cons *cons, int argc, int type, int nil_ok)
-{
- ao_poly car = ao_scheme_arg(cons, argc);
-
- if ((!car && !nil_ok) || ao_scheme_poly_type(car) != type)
- return ao_scheme_error(AO_SCHEME_INVALID, "%v: arg %d invalid type %v", name, argc, car);
- return _ao_scheme_bool_true;
-}
-
-static int32_t
-ao_scheme_arg_int(ao_poly name, struct ao_scheme_cons *cons, int argc)
-{
- ao_poly p = ao_scheme_arg(cons, argc);
- bool fail = false;
- int32_t i = ao_scheme_poly_integer(p, &fail);
-
- if (fail)
- (void) ao_scheme_error(AO_SCHEME_INVALID, "%v: arg %d invalid type %v", name, argc, p);
- return i;
-}
-
-ao_poly
-ao_scheme_do_car(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_car, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_car, cons, 0, AO_SCHEME_CONS, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_poly_cons(cons->car)->car;
-}
-
-ao_poly
-ao_scheme_do_cdr(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_cdr, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_cdr, cons, 0, AO_SCHEME_CONS, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_poly_cons(cons->car)->cdr;
-}
-
-ao_poly
-ao_scheme_do_cons(struct ao_scheme_cons *cons)
-{
- ao_poly car, cdr;
- if(!ao_scheme_check_argc(_ao_scheme_atom_cons, cons, 2, 2))
- return AO_SCHEME_NIL;
- car = ao_scheme_arg(cons, 0);
- cdr = ao_scheme_arg(cons, 1);
- return ao_scheme_cons(car, cdr);
-}
-
-ao_poly
-ao_scheme_do_last(struct ao_scheme_cons *cons)
-{
- struct ao_scheme_cons *list;
- if (!ao_scheme_check_argc(_ao_scheme_atom_last, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_last, cons, 0, AO_SCHEME_CONS, 1))
- return AO_SCHEME_NIL;
- for (list = ao_scheme_poly_cons(ao_scheme_arg(cons, 0));
- list;
- list = ao_scheme_cons_cdr(list))
- {
- if (!list->cdr)
- return list->car;
- }
- return AO_SCHEME_NIL;
-}
-
-ao_poly
-ao_scheme_do_length(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_length, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_length, cons, 0, AO_SCHEME_CONS, 1))
- return AO_SCHEME_NIL;
- return ao_scheme_int_poly(ao_scheme_cons_length(ao_scheme_poly_cons(ao_scheme_arg(cons, 0))));
-}
-
-ao_poly
-ao_scheme_do_list_copy(struct ao_scheme_cons *cons)
-{
- struct ao_scheme_cons *new;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_length, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_length, cons, 0, AO_SCHEME_CONS, 1))
- return AO_SCHEME_NIL;
- new = ao_scheme_cons_copy(ao_scheme_poly_cons(ao_scheme_arg(cons, 0)));
- return ao_scheme_cons_poly(new);
-}
-
-ao_poly
-ao_scheme_do_quote(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_quote, cons, 1, 1))
- return AO_SCHEME_NIL;
- return ao_scheme_arg(cons, 0);
-}
-
-ao_poly
-ao_scheme_do_set(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_set, cons, 2, 2))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_set, cons, 0, AO_SCHEME_ATOM, 0))
- return AO_SCHEME_NIL;
-
- return ao_scheme_atom_set(ao_scheme_arg(cons, 0), ao_scheme_arg(cons, 1));
-}
-
-ao_poly
-ao_scheme_do_def(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_def, cons, 2, 2))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_def, cons, 0, AO_SCHEME_ATOM, 0))
- return AO_SCHEME_NIL;
-
- return ao_scheme_atom_def(ao_scheme_arg(cons, 0), ao_scheme_arg(cons, 1));
-}
-
-ao_poly
-ao_scheme_do_setq(struct ao_scheme_cons *cons)
-{
- ao_poly name;
- if (!ao_scheme_check_argc(_ao_scheme_atom_set21, cons, 2, 2))
- return AO_SCHEME_NIL;
- name = cons->car;
- if (ao_scheme_poly_type(name) != AO_SCHEME_ATOM)
- return ao_scheme_error(AO_SCHEME_INVALID, "set! of non-atom %v", name);
- if (!ao_scheme_atom_ref(name, NULL))
- return ao_scheme_error(AO_SCHEME_INVALID, "atom %v not defined", name);
- return ao_scheme_cons(_ao_scheme_atom_set,
- ao_scheme_cons(ao_scheme_cons(_ao_scheme_atom_quote,
- ao_scheme_cons(name, AO_SCHEME_NIL)),
- cons->cdr));
-}
-
-ao_poly
-ao_scheme_do_cond(struct ao_scheme_cons *cons)
-{
- ao_scheme_set_cond(cons);
- return AO_SCHEME_NIL;
-}
-
-ao_poly
-ao_scheme_do_begin(struct ao_scheme_cons *cons)
-{
- ao_scheme_stack->state = eval_begin;
- ao_scheme_stack->sexprs = ao_scheme_cons_poly(cons);
- return AO_SCHEME_NIL;
-}
-
-ao_poly
-ao_scheme_do_while(struct ao_scheme_cons *cons)
-{
- ao_scheme_stack->state = eval_while;
- ao_scheme_stack->sexprs = ao_scheme_cons_poly(cons);
- return AO_SCHEME_NIL;
-}
-
-ao_poly
-ao_scheme_do_write(struct ao_scheme_cons *cons)
-{
- ao_poly val = AO_SCHEME_NIL;
- while (cons) {
- val = cons->car;
- ao_scheme_poly_write(val, true);
- cons = ao_scheme_cons_cdr(cons);
- if (cons)
- printf(" ");
- }
- return _ao_scheme_bool_true;
-}
-
-ao_poly
-ao_scheme_do_display(struct ao_scheme_cons *cons)
-{
- ao_poly val = AO_SCHEME_NIL;
- while (cons) {
- val = cons->car;
- ao_scheme_poly_write(val, false);
- cons = ao_scheme_cons_cdr(cons);
- }
- return _ao_scheme_bool_true;
-}
-
-static ao_poly
-ao_scheme_math(struct ao_scheme_cons *orig_cons, enum ao_scheme_builtin_id op)
-{
- struct ao_scheme_cons *cons;
- ao_poly ret = AO_SCHEME_NIL;
-
- for (cons = orig_cons; cons; cons = ao_scheme_cons_cdr(cons)) {
- ao_poly car = cons->car;
- uint8_t rt = ao_scheme_poly_type(ret);
- uint8_t ct = ao_scheme_poly_type(car);
-
- if (cons == orig_cons) {
- ret = car;
- ao_scheme_cons_stash(cons);
- if (cons->cdr == AO_SCHEME_NIL) {
- switch (op) {
- case builtin_minus:
- if (ao_scheme_integer_typep(ct))
- ret = ao_scheme_integer_poly(-ao_scheme_poly_integer(ret, NULL));
-#ifdef AO_SCHEME_FEATURE_FLOAT
- else if (ct == AO_SCHEME_FLOAT)
- ret = ao_scheme_float_get(-ao_scheme_poly_number(ret));
-#endif
- break;
- case builtin_divide:
- if (ao_scheme_poly_integer(ret, NULL) == 1) {
- } else {
-#ifdef AO_SCHEME_FEATURE_FLOAT
- if (ao_scheme_number_typep(ct)) {
- float v = ao_scheme_poly_number(ret);
- ret = ao_scheme_float_get(1/v);
- }
-#else
- ret = ao_scheme_integer_poly(0);
-#endif
- }
- break;
- default:
- break;
- }
- }
- cons = ao_scheme_cons_fetch();
- } else if (ao_scheme_integer_typep(rt) && ao_scheme_integer_typep(ct)) {
- int32_t r = ao_scheme_poly_integer(ret, NULL);
- int32_t c = ao_scheme_poly_integer(car, NULL);
-#ifdef AO_SCHEME_FEATURE_FLOAT
- int64_t t;
-#endif
-
- switch(op) {
- case builtin_plus:
- r += c;
- check_overflow:
-#ifdef AO_SCHEME_FEATURE_FLOAT
- if (r < AO_SCHEME_MIN_BIGINT || AO_SCHEME_MAX_BIGINT < r)
- goto inexact;
-#endif
- break;
- case builtin_minus:
- r -= c;
- goto check_overflow;
- break;
- case builtin_times:
-#ifdef AO_SCHEME_FEATURE_FLOAT
- t = (int64_t) r * (int64_t) c;
- if (t < AO_SCHEME_MIN_BIGINT || AO_SCHEME_MAX_BIGINT < t)
- goto inexact;
- r = (int32_t) t;
-#else
- r = r * c;
-#endif
- break;
- case builtin_divide:
-#ifdef AO_SCHEME_FEATURE_FLOAT
- if (c != 0 && (r % c) == 0)
- r /= c;
- else
- goto inexact;
-#else
- r /= c;
-#endif
- break;
- case builtin_quotient:
- if (c == 0)
- return ao_scheme_error(AO_SCHEME_DIVIDE_BY_ZERO, "quotient by zero");
- if (r % c != 0 && (c < 0) != (r < 0))
- r = r / c - 1;
- else
- r = r / c;
- break;
- case builtin_remainder:
- if (c == 0)
- return ao_scheme_error(AO_SCHEME_DIVIDE_BY_ZERO, "remainder by zero");
- r %= c;
- break;
- case builtin_modulo:
- if (c == 0)
- return ao_scheme_error(AO_SCHEME_DIVIDE_BY_ZERO, "modulo by zero");
- r %= c;
- if ((r < 0) != (c < 0))
- r += c;
- break;
- default:
- break;
- }
- ao_scheme_cons_stash(cons);
- ret = ao_scheme_integer_poly(r);
- cons = ao_scheme_cons_fetch();
-#ifdef AO_SCHEME_FEATURE_FLOAT
- } else if (ao_scheme_number_typep(rt) && ao_scheme_number_typep(ct)) {
- float r, c;
- inexact:
- r = ao_scheme_poly_number(ret);
- c = ao_scheme_poly_number(car);
- switch(op) {
- case builtin_plus:
- r += c;
- break;
- case builtin_minus:
- r -= c;
- break;
- case builtin_times:
- r *= c;
- break;
- case builtin_divide:
- r /= c;
- break;
- case builtin_quotient:
- case builtin_remainder:
- case builtin_modulo:
- return ao_scheme_error(AO_SCHEME_INVALID, "non-integer value in integer divide");
- default:
- break;
- }
- ao_scheme_cons_stash(cons);
- ret = ao_scheme_float_get(r);
- cons = ao_scheme_cons_fetch();
-#endif
- }
- else if (rt == AO_SCHEME_STRING && ct == AO_SCHEME_STRING && op == builtin_plus) {
- ao_scheme_cons_stash(cons);
- ret = ao_scheme_string_poly(ao_scheme_string_cat(ao_scheme_poly_string(ret),
- ao_scheme_poly_string(car)));
- cons = ao_scheme_cons_fetch();
- if (!ret)
- return ret;
- }
- else
- return ao_scheme_error(AO_SCHEME_INVALID, "invalid args");
- }
- return ret;
-}
-
-ao_poly
-ao_scheme_do_plus(struct ao_scheme_cons *cons)
-{
- return ao_scheme_math(cons, builtin_plus);
-}
-
-ao_poly
-ao_scheme_do_minus(struct ao_scheme_cons *cons)
-{
- return ao_scheme_math(cons, builtin_minus);
-}
-
-ao_poly
-ao_scheme_do_times(struct ao_scheme_cons *cons)
-{
- return ao_scheme_math(cons, builtin_times);
-}
-
-ao_poly
-ao_scheme_do_divide(struct ao_scheme_cons *cons)
-{
- return ao_scheme_math(cons, builtin_divide);
-}
-
-ao_poly
-ao_scheme_do_quotient(struct ao_scheme_cons *cons)
-{
- return ao_scheme_math(cons, builtin_quotient);
-}
-
-ao_poly
-ao_scheme_do_modulo(struct ao_scheme_cons *cons)
-{
- return ao_scheme_math(cons, builtin_modulo);
-}
-
-ao_poly
-ao_scheme_do_remainder(struct ao_scheme_cons *cons)
-{
- return ao_scheme_math(cons, builtin_remainder);
-}
-
-static ao_poly
-ao_scheme_compare(struct ao_scheme_cons *cons, enum ao_scheme_builtin_id op)
-{
- ao_poly left;
-
- if (!cons)
- return _ao_scheme_bool_true;
-
- left = cons->car;
- for (cons = ao_scheme_cons_cdr(cons); cons; cons = ao_scheme_cons_cdr(cons)) {
- ao_poly right = cons->car;
-
- if (op == builtin_equal && left == right) {
- ;
- } else {
- uint8_t lt = ao_scheme_poly_type(left);
- uint8_t rt = ao_scheme_poly_type(right);
- if (ao_scheme_integer_typep(lt) && ao_scheme_integer_typep(rt)) {
- int32_t l = ao_scheme_poly_integer(left, NULL);
- int32_t r = ao_scheme_poly_integer(right, NULL);
-
- switch (op) {
- case builtin_less:
- if (!(l < r))
- return _ao_scheme_bool_false;
- break;
- case builtin_greater:
- if (!(l > r))
- return _ao_scheme_bool_false;
- break;
- case builtin_less_equal:
- if (!(l <= r))
- return _ao_scheme_bool_false;
- break;
- case builtin_greater_equal:
- if (!(l >= r))
- return _ao_scheme_bool_false;
- break;
- case builtin_equal:
- if (!(l == r))
- return _ao_scheme_bool_false;
- default:
- break;
- }
-#ifdef AO_SCHEME_FEATURE_FLOAT
- } else if (ao_scheme_number_typep(lt) && ao_scheme_number_typep(rt)) {
- float l, r;
-
- l = ao_scheme_poly_number(left);
- r = ao_scheme_poly_number(right);
-
- switch (op) {
- case builtin_less:
- if (!(l < r))
- return _ao_scheme_bool_false;
- break;
- case builtin_greater:
- if (!(l > r))
- return _ao_scheme_bool_false;
- break;
- case builtin_less_equal:
- if (!(l <= r))
- return _ao_scheme_bool_false;
- break;
- case builtin_greater_equal:
- if (!(l >= r))
- return _ao_scheme_bool_false;
- break;
- case builtin_equal:
- if (!(l == r))
- return _ao_scheme_bool_false;
- default:
- break;
- }
-#endif /* AO_SCHEME_FEATURE_FLOAT */
- } else if (lt == AO_SCHEME_STRING && rt == AO_SCHEME_STRING) {
- int c = strcmp(ao_scheme_poly_string(left)->val,
- ao_scheme_poly_string(right)->val);
- switch (op) {
- case builtin_less:
- if (!(c < 0))
- return _ao_scheme_bool_false;
- break;
- case builtin_greater:
- if (!(c > 0))
- return _ao_scheme_bool_false;
- break;
- case builtin_less_equal:
- if (!(c <= 0))
- return _ao_scheme_bool_false;
- break;
- case builtin_greater_equal:
- if (!(c >= 0))
- return _ao_scheme_bool_false;
- break;
- case builtin_equal:
- if (!(c == 0))
- return _ao_scheme_bool_false;
- break;
- default:
- break;
- }
- } else
- return _ao_scheme_bool_false;
- }
- left = right;
- }
- return _ao_scheme_bool_true;
-}
-
-ao_poly
-ao_scheme_do_equal(struct ao_scheme_cons *cons)
-{
- return ao_scheme_compare(cons, builtin_equal);
-}
-
-ao_poly
-ao_scheme_do_less(struct ao_scheme_cons *cons)
-{
- return ao_scheme_compare(cons, builtin_less);
-}
-
-ao_poly
-ao_scheme_do_greater(struct ao_scheme_cons *cons)
-{
- return ao_scheme_compare(cons, builtin_greater);
-}
-
-ao_poly
-ao_scheme_do_less_equal(struct ao_scheme_cons *cons)
-{
- return ao_scheme_compare(cons, builtin_less_equal);
-}
-
-ao_poly
-ao_scheme_do_greater_equal(struct ao_scheme_cons *cons)
-{
- return ao_scheme_compare(cons, builtin_greater_equal);
-}
-
-ao_poly
-ao_scheme_do_list_to_string(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_list2d3estring, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_list2d3estring, cons, 0, AO_SCHEME_CONS, 1))
- return AO_SCHEME_NIL;
- return ao_scheme_string_pack(ao_scheme_poly_cons(ao_scheme_arg(cons, 0)));
-}
-
-ao_poly
-ao_scheme_do_string_to_list(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_string2d3elist, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_string2d3elist, cons, 0, AO_SCHEME_STRING, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_string_unpack(ao_scheme_poly_string(ao_scheme_arg(cons, 0)));
-}
-
-ao_poly
-ao_scheme_do_string_ref(struct ao_scheme_cons *cons)
-{
- char *string;
- int32_t ref;
- if (!ao_scheme_check_argc(_ao_scheme_atom_string2dref, cons, 2, 2))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_string2dref, cons, 0, AO_SCHEME_STRING, 0))
- return AO_SCHEME_NIL;
- ref = ao_scheme_arg_int(_ao_scheme_atom_string2dref, cons, 1);
- if (ao_scheme_exception)
- return AO_SCHEME_NIL;
- string = ao_scheme_poly_string(ao_scheme_arg(cons, 0))->val;
- while (*string && ref) {
- ++string;
- --ref;
- }
- if (!*string)
- return ao_scheme_error(AO_SCHEME_INVALID, "%v: string %v ref %v invalid",
- _ao_scheme_atom_string2dref,
- ao_scheme_arg(cons, 0),
- ao_scheme_arg(cons, 1));
- return ao_scheme_int_poly(*string);
-}
-
-ao_poly
-ao_scheme_do_string_length(struct ao_scheme_cons *cons)
-{
- struct ao_scheme_string *string;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_string2dlength, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_string2dlength, cons, 0, AO_SCHEME_STRING, 0))
- return AO_SCHEME_NIL;
- string = ao_scheme_poly_string(ao_scheme_arg(cons, 0));
- return ao_scheme_integer_poly(strlen(string->val));
-}
-
-ao_poly
-ao_scheme_do_string_copy(struct ao_scheme_cons *cons)
-{
- struct ao_scheme_string *string;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_string2dcopy, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_string2dcopy, cons, 0, AO_SCHEME_STRING, 0))
- return AO_SCHEME_NIL;
- string = ao_scheme_poly_string(ao_scheme_arg(cons, 0));
- return ao_scheme_string_poly(ao_scheme_string_copy(string));
-}
-
-ao_poly
-ao_scheme_do_string_set(struct ao_scheme_cons *cons)
-{
- char *string;
- int32_t ref;
- int32_t val;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_string2dset21, cons, 3, 3))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_string2dset21, cons, 0, AO_SCHEME_STRING, 0))
- return AO_SCHEME_NIL;
- string = ao_scheme_poly_string(ao_scheme_arg(cons, 0))->val;
- ref = ao_scheme_arg_int(_ao_scheme_atom_string2dset21, cons, 1);
- if (ao_scheme_exception)
- return AO_SCHEME_NIL;
- val = ao_scheme_arg_int(_ao_scheme_atom_string2dset21, cons, 2);
- if (ao_scheme_exception)
- return AO_SCHEME_NIL;
- while (*string && ref) {
- ++string;
- --ref;
- }
- if (!*string)
- return ao_scheme_error(AO_SCHEME_INVALID, "%v: string %v ref %v invalid",
- _ao_scheme_atom_string2dset21,
- ao_scheme_arg(cons, 0),
- ao_scheme_arg(cons, 1));
- *string = val;
- return ao_scheme_int_poly(*string);
-}
-
-ao_poly
-ao_scheme_do_flush_output(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_flush2doutput, cons, 0, 0))
- return AO_SCHEME_NIL;
- ao_scheme_os_flush();
- return _ao_scheme_bool_true;
-}
-
-ao_poly
-ao_scheme_do_led(struct ao_scheme_cons *cons)
-{
- int32_t led;
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- led = ao_scheme_arg_int(_ao_scheme_atom_led, cons, 0);
- if (ao_scheme_exception)
- return AO_SCHEME_NIL;
- led = ao_scheme_arg(cons, 0);
- ao_scheme_os_led(ao_scheme_poly_int(led));
- return led;
-}
-
-ao_poly
-ao_scheme_do_delay(struct ao_scheme_cons *cons)
-{
- int32_t delay;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_delay, cons, 1, 1))
- return AO_SCHEME_NIL;
- delay = ao_scheme_arg_int(_ao_scheme_atom_delay, cons, 0);
- if (ao_scheme_exception)
- return AO_SCHEME_NIL;
- ao_scheme_os_delay(delay);
- return delay;
-}
-
-ao_poly
-ao_scheme_do_eval(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_eval, cons, 1, 1))
- return AO_SCHEME_NIL;
- ao_scheme_stack->state = eval_sexpr;
- return cons->car;
-}
-
-ao_poly
-ao_scheme_do_apply(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_apply, cons, 2, INT_MAX))
- return AO_SCHEME_NIL;
- ao_scheme_stack->state = eval_apply;
- return ao_scheme_cons_poly(cons);
-}
-
-ao_poly
-ao_scheme_do_read(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_read, cons, 0, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_read();
-}
-
-ao_poly
-ao_scheme_do_collect(struct ao_scheme_cons *cons)
-{
- int free;
- (void) cons;
- free = ao_scheme_collect(AO_SCHEME_COLLECT_FULL);
- return ao_scheme_integer_poly(free);
-}
-
-ao_poly
-ao_scheme_do_nullp(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (ao_scheme_arg(cons, 0) == AO_SCHEME_NIL)
- return _ao_scheme_bool_true;
- else
- return _ao_scheme_bool_false;
-}
-
-ao_poly
-ao_scheme_do_not(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (ao_scheme_arg(cons, 0) == _ao_scheme_bool_false)
- return _ao_scheme_bool_true;
- else
- return _ao_scheme_bool_false;
-}
-
-static ao_poly
-ao_scheme_do_typep(int type, struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (ao_scheme_poly_type(ao_scheme_arg(cons, 0)) == type)
- return _ao_scheme_bool_true;
- return _ao_scheme_bool_false;
-}
-
-ao_poly
-ao_scheme_do_pairp(struct ao_scheme_cons *cons)
-{
- ao_poly v;
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- v = ao_scheme_arg(cons, 0);
- if (ao_scheme_is_pair(v))
- return _ao_scheme_bool_true;
- return _ao_scheme_bool_false;
-}
-
-ao_poly
-ao_scheme_do_integerp(struct ao_scheme_cons *cons)
-{
-#ifdef AO_SCHEME_FEATURE_BIGINT
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- switch (ao_scheme_poly_type(ao_scheme_arg(cons, 0))) {
- case AO_SCHEME_INT:
- case AO_SCHEME_BIGINT:
- return _ao_scheme_bool_true;
- default:
- return _ao_scheme_bool_false;
- }
-#else
- return ao_scheme_do_typep(AO_SCHEME_INT, cons);
-#endif
-}
-
-ao_poly
-ao_scheme_do_numberp(struct ao_scheme_cons *cons)
-{
-#if defined(AO_SCHEME_FEATURE_BIGINT) || defined(AO_SCHEME_FEATURE_FLOAT)
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- switch (ao_scheme_poly_type(ao_scheme_arg(cons, 0))) {
- case AO_SCHEME_INT:
-#ifdef AO_SCHEME_FEATURE_BIGINT
- case AO_SCHEME_BIGINT:
-#endif
-#ifdef AO_SCHEME_FEATURE_FLOAT
- case AO_SCHEME_FLOAT:
-#endif
- return _ao_scheme_bool_true;
- default:
- return _ao_scheme_bool_false;
- }
-#else
- return ao_scheme_do_integerp(cons);
-#endif
-}
-
-ao_poly
-ao_scheme_do_stringp(struct ao_scheme_cons *cons)
-{
- return ao_scheme_do_typep(AO_SCHEME_STRING, cons);
-}
-
-ao_poly
-ao_scheme_do_symbolp(struct ao_scheme_cons *cons)
-{
- return ao_scheme_do_typep(AO_SCHEME_ATOM, cons);
-}
-
-ao_poly
-ao_scheme_do_booleanp(struct ao_scheme_cons *cons)
-{
- return ao_scheme_do_typep(AO_SCHEME_BOOL, cons);
-}
-
-ao_poly
-ao_scheme_do_procedurep(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- switch (ao_scheme_poly_type(ao_scheme_arg(cons, 0))) {
- case AO_SCHEME_BUILTIN:
- case AO_SCHEME_LAMBDA:
- return _ao_scheme_bool_true;
- default:
- return _ao_scheme_bool_false;
- }
-}
-
-/* This one is special -- a list is either nil or
- * a 'proper' list with only cons cells
- */
-ao_poly
-ao_scheme_do_listp(struct ao_scheme_cons *cons)
-{
- ao_poly v;
- if (!ao_scheme_check_argc(_ao_scheme_atom_list3f, cons, 1, 1))
- return AO_SCHEME_NIL;
- v = ao_scheme_arg(cons, 0);
- for (;;) {
- if (v == AO_SCHEME_NIL)
- return _ao_scheme_bool_true;
- if (!ao_scheme_is_cons(v))
- return _ao_scheme_bool_false;
- v = ao_scheme_poly_cons(v)->cdr;
- }
-}
-
-ao_poly
-ao_scheme_do_set_car(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 2, 2))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_led, cons, 0, AO_SCHEME_CONS, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_poly_cons(ao_scheme_arg(cons, 0))->car = ao_scheme_arg(cons, 1);
-}
-
-ao_poly
-ao_scheme_do_set_cdr(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 2, 2))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_led, cons, 0, AO_SCHEME_CONS, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_poly_cons(ao_scheme_arg(cons, 0))->cdr = ao_scheme_arg(cons, 1);
-}
-
-ao_poly
-ao_scheme_do_symbol_to_string(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_led, cons, 0, AO_SCHEME_ATOM, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_string_poly(ao_scheme_atom_to_string(ao_scheme_poly_atom(ao_scheme_arg(cons, 0))));
-}
-
-ao_poly
-ao_scheme_do_string_to_symbol(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_led, cons, 0, AO_SCHEME_STRING, 0))
- return AO_SCHEME_NIL;
-
- return ao_scheme_atom_poly(ao_scheme_string_to_atom(ao_scheme_poly_string(ao_scheme_arg(cons, 0))));;
-}
-
-ao_poly
-ao_scheme_do_read_char(struct ao_scheme_cons *cons)
-{
- int c;
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 0, 0))
- return AO_SCHEME_NIL;
- c = getchar();
- return ao_scheme_int_poly(c);
-}
-
-ao_poly
-ao_scheme_do_write_char(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_led, cons, 0, AO_SCHEME_INT, 0))
- return AO_SCHEME_NIL;
- putchar(ao_scheme_poly_integer(ao_scheme_arg(cons, 0), NULL));
- return _ao_scheme_bool_true;
-}
-
-ao_poly
-ao_scheme_do_exit(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 0, 0))
- return AO_SCHEME_NIL;
- ao_scheme_exception |= AO_SCHEME_EXIT;
- return _ao_scheme_bool_true;
-}
-
-ao_poly
-ao_scheme_do_current_jiffy(struct ao_scheme_cons *cons)
-{
- int jiffy;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 0, 0))
- return AO_SCHEME_NIL;
- jiffy = ao_scheme_os_jiffy();
- return (ao_scheme_int_poly(jiffy));
-}
-
-ao_poly
-ao_scheme_do_current_second(struct ao_scheme_cons *cons)
-{
- int second;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 0, 0))
- return AO_SCHEME_NIL;
- second = ao_scheme_os_jiffy() / AO_SCHEME_JIFFIES_PER_SECOND;
- return (ao_scheme_int_poly(second));
-}
-
-ao_poly
-ao_scheme_do_jiffies_per_second(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_led, cons, 0, 0))
- return AO_SCHEME_NIL;
- return (ao_scheme_int_poly(AO_SCHEME_JIFFIES_PER_SECOND));
-}
-
-#ifdef AO_SCHEME_FEATURE_VECTOR
-
-ao_poly
-ao_scheme_do_vector(struct ao_scheme_cons *cons)
-{
- return ao_scheme_vector_poly(ao_scheme_list_to_vector(cons));
-}
-
-ao_poly
-ao_scheme_do_make_vector(struct ao_scheme_cons *cons)
-{
- int32_t k;
-
- if (!ao_scheme_check_argc(_ao_scheme_atom_make2dvector, cons, 2, 2))
- return AO_SCHEME_NIL;
- k = ao_scheme_arg_int(_ao_scheme_atom_make2dvector, cons, 0);
- if (ao_scheme_exception)
- return AO_SCHEME_NIL;
- return ao_scheme_vector_poly(ao_scheme_vector_alloc(k, ao_scheme_arg(cons, 1)));
-}
-
-ao_poly
-ao_scheme_do_vector_ref(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_vector2dref, cons, 2, 2))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_vector2dref, cons, 0, AO_SCHEME_VECTOR, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_vector_get(ao_scheme_arg(cons, 0), ao_scheme_arg(cons, 1));
-}
-
-ao_poly
-ao_scheme_do_vector_set(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_vector2dset21, cons, 3, 3))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_vector2dset21, cons, 0, AO_SCHEME_VECTOR, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_vector_set(ao_scheme_arg(cons, 0), ao_scheme_arg(cons, 1), ao_scheme_arg(cons, 2));
-}
-
-ao_poly
-ao_scheme_do_list_to_vector(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_list2d3evector, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_list2d3evector, cons, 0, AO_SCHEME_CONS, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_vector_poly(ao_scheme_list_to_vector(ao_scheme_poly_cons(ao_scheme_arg(cons, 0))));
-}
-
-ao_poly
-ao_scheme_do_vector_to_list(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_vector2d3elist, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_vector2d3elist, cons, 0, AO_SCHEME_VECTOR, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_cons_poly(ao_scheme_vector_to_list(ao_scheme_poly_vector(ao_scheme_arg(cons, 0))));
-}
-
-ao_poly
-ao_scheme_do_vector_length(struct ao_scheme_cons *cons)
-{
- if (!ao_scheme_check_argc(_ao_scheme_atom_vector2d3elist, cons, 1, 1))
- return AO_SCHEME_NIL;
- if (!ao_scheme_check_argt(_ao_scheme_atom_vector2d3elist, cons, 0, AO_SCHEME_VECTOR, 0))
- return AO_SCHEME_NIL;
- return ao_scheme_integer_poly(ao_scheme_poly_vector(ao_scheme_arg(cons, 0))->length);
-}
-
-ao_poly
-ao_scheme_do_vectorp(struct ao_scheme_cons *cons)
-{
- return ao_scheme_do_typep(AO_SCHEME_VECTOR, cons);
-}
-
-#endif /* AO_SCHEME_FEATURE_VECTOR */
-
-#define AO_SCHEME_BUILTIN_FUNCS
-#include "ao_scheme_builtin.h"
projects / fw / altos / blobdiff