micropython/ports/javascript/main.c

146 wiersze
4.3 KiB
C

/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013-2021 Damien P. George and 2017, 2018 Rami Ali
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "py/compile.h"
#include "py/runtime.h"
#include "py/repl.h"
#include "py/gc.h"
#include "py/mperrno.h"
#include "shared/runtime/pyexec.h"
#include "emscripten.h"
#include "library.h"
#if MICROPY_ENABLE_COMPILER
int do_str(const char *src, mp_parse_input_kind_t input_kind) {
int ret = 0;
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
qstr source_name = lex->source_name;
mp_parse_tree_t parse_tree = mp_parse(lex, input_kind);
mp_obj_t module_fun = mp_compile(&parse_tree, source_name, false);
mp_call_function_0(module_fun);
nlr_pop();
} else {
// uncaught exception
if (mp_obj_is_subclass_fast(mp_obj_get_type((mp_obj_t)nlr.ret_val), &mp_type_SystemExit)) {
mp_obj_t exit_val = mp_obj_exception_get_value(MP_OBJ_FROM_PTR(nlr.ret_val));
if (exit_val != mp_const_none) {
mp_int_t int_val;
if (mp_obj_get_int_maybe(exit_val, &int_val)) {
ret = int_val & 255;
} else {
ret = 1;
}
}
} else {
mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
ret = 1;
}
}
return ret;
}
#endif
int mp_js_do_str(const char *code) {
return do_str(code, MP_PARSE_FILE_INPUT);
}
int mp_js_process_char(int c) {
return pyexec_event_repl_process_char(c);
}
void mp_js_init(int heap_size) {
#if MICROPY_ENABLE_GC
char *heap = (char *)malloc(heap_size * sizeof(char));
gc_init(heap, heap + heap_size);
#endif
#if MICROPY_ENABLE_PYSTACK
static mp_obj_t pystack[1024];
mp_pystack_init(pystack, &pystack[MP_ARRAY_SIZE(pystack)]);
#endif
mp_init();
mp_obj_list_init(mp_sys_path, 0);
mp_obj_list_append(mp_sys_path, MP_OBJ_NEW_QSTR(MP_QSTR_));
mp_obj_list_init(mp_sys_argv, 0);
}
void mp_js_init_repl() {
pyexec_event_repl_init();
}
STATIC void gc_scan_func(void *begin, void *end) {
gc_collect_root((void **)begin, (void **)end - (void **)begin + 1);
}
void gc_collect(void) {
gc_collect_start();
emscripten_scan_stack(gc_scan_func);
emscripten_scan_registers(gc_scan_func);
gc_collect_end();
}
mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
mp_raise_OSError(MP_ENOENT);
}
mp_import_stat_t mp_import_stat(const char *path) {
return MP_IMPORT_STAT_NO_EXIST;
}
mp_obj_t mp_builtin_open(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_open_obj, 1, mp_builtin_open);
void nlr_jump_fail(void *val) {
while (1) {
;
}
}
void NORETURN __fatal_error(const char *msg) {
while (1) {
;
}
}
#ifndef NDEBUG
void MP_WEAK __assert_func(const char *file, int line, const char *func, const char *expr) {
printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line);
__fatal_error("Assertion failed");
}
#endif