micropython/unix/main.c

233 wiersze
5.7 KiB
C

#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "nlr.h"
#include "misc.h"
#include "mpconfig.h"
#include "lexer.h"
#include "lexerunix.h"
#include "parse.h"
#include "compile.h"
#include "obj.h"
#include "runtime0.h"
#include "runtime.h"
#include "repl.h"
#ifdef USE_READLINE
#include <readline/readline.h>
#include <readline/history.h>
#endif
static char *str_join(const char *s1, int sep_char, const char *s2) {
int l1 = strlen(s1);
int l2 = strlen(s2);
char *s = m_new(char, l1 + l2 + 2);
memcpy(s, s1, l1);
if (sep_char != 0) {
s[l1] = sep_char;
l1 += 1;
}
memcpy(s + l1, s2, l2);
s[l1 + l2] = 0;
return s;
}
static char *prompt(char *p) {
#ifdef USE_READLINE
char *line = readline(p);
if (line) {
add_history(line);
}
#else
static char buf[256];
fputs(p, stdout);
char *s = fgets(buf, sizeof(buf), stdin);
if (!s) {
return NULL;
}
int l = strlen(buf);
if (buf[l - 1] == '\n') {
buf[l - 1] = 0;
} else {
l++;
}
char *line = m_new(char, l);
memcpy(line, buf, l);
#endif
return line;
}
static void do_repl(void) {
for (;;) {
char *line = prompt(">>> ");
if (line == NULL) {
// EOF
return;
}
if (mp_repl_is_compound_stmt(line)) {
for (;;) {
char *line2 = prompt("... ");
if (line2 == NULL || strlen(line2) == 0) {
break;
}
char *line3 = str_join(line, '\n', line2);
free(line);
free(line2);
line = line3;
}
}
mp_lexer_t *lex = mp_lexer_new_from_str_len("<stdin>", line, strlen(line), false);
mp_parse_node_t pn = mp_parse(lex, MP_PARSE_SINGLE_INPUT);
mp_lexer_free(lex);
if (pn != MP_PARSE_NODE_NULL) {
//mp_parse_node_show(pn, 0);
bool comp_ok = mp_compile(pn, true);
if (comp_ok) {
mp_obj_t module_fun = rt_make_function_from_id(1);
if (module_fun != mp_const_none) {
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
rt_call_function_0(module_fun);
nlr_pop();
} else {
// uncaught exception
mp_obj_print((mp_obj_t)nlr.ret_val);
printf("\n");
}
}
}
}
}
}
void do_file(const char *file) {
mp_lexer_t *lex = mp_lexer_new_from_file(file);
//const char *pysrc = "def f():\n x=x+1\n print(42)\n";
//mp_lexer_t *lex = mp_lexer_from_str_len("<>", pysrc, strlen(pysrc), false);
if (lex == NULL) {
return;
}
if (0) {
// just tokenise
while (!mp_lexer_is_kind(lex, MP_TOKEN_END)) {
mp_token_show(mp_lexer_cur(lex));
mp_lexer_to_next(lex);
}
mp_lexer_free(lex);
} else {
// compile
mp_parse_node_t pn = mp_parse(lex, MP_PARSE_FILE_INPUT);
mp_lexer_free(lex);
if (pn != MP_PARSE_NODE_NULL) {
//printf("----------------\n");
//parse_node_show(pn, 0);
//printf("----------------\n");
bool comp_ok = mp_compile(pn, false);
//printf("----------------\n");
#if MICROPY_EMIT_CPYTHON
if (!comp_ok) {
printf("compile error\n");
}
#else
if (1 && comp_ok) {
// execute it
mp_obj_t module_fun = rt_make_function_from_id(1);
if (module_fun != mp_const_none) {
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
rt_call_function_0(module_fun);
nlr_pop();
} else {
// uncaught exception
mp_obj_print((mp_obj_t)nlr.ret_val);
printf("\n");
}
}
}
#endif
}
}
}
typedef struct _test_obj_t {
mp_obj_base_t base;
bool value;
} test_obj_t;
static void test_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t self_in) {
test_obj_t *self = self_in;
print(env, "<test %d>", self->value);
}
static mp_obj_t test_get(mp_obj_t self_in) {
test_obj_t *self = self_in;
return mp_obj_new_int(self->value);
}
static mp_obj_t test_set(mp_obj_t self_in, mp_obj_t arg) {
test_obj_t *self = self_in;
self->value = mp_obj_get_int(arg);
return mp_const_none;
}
static MP_DEFINE_CONST_FUN_OBJ_1(test_get_obj, test_get);
static MP_DEFINE_CONST_FUN_OBJ_2(test_set_obj, test_set);
static const mp_obj_type_t test_type = {
{ &mp_const_type },
"Test",
test_print, // print
NULL, // call_n
NULL, // unary_op
NULL, // binary_op
NULL, // getiter
NULL, // iternext
{ // method list
{ "get", &test_get_obj },
{ "set", &test_set_obj },
{ NULL, NULL },
}
};
mp_obj_t test_obj_new(int value) {
test_obj_t *o = m_new_obj(test_obj_t);
o->base.type = &test_type;
o->value = value;
return o;
}
int main(int argc, char **argv) {
qstr_init();
rt_init();
rt_store_name(qstr_from_str_static("test"), test_obj_new(42));
if (argc == 1) {
do_repl();
} else if (argc == 2) {
do_file(argv[1]);
} else {
printf("usage: py [<file>]\n");
return 1;
}
rt_deinit();
//printf("total bytes = %d\n", m_get_total_bytes_allocated());
return 0;
}
// for sqrt
#include <math.h>
machine_float_t machine_sqrt(machine_float_t x) {
return sqrt(x);
}