static int call_dupterm_read(void) {
if (MP_STATE_PORT(term_obj) == NULL) {
return -1;
}
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_obj_t read_m[3];
mp_load_method(MP_STATE_PORT(term_obj), MP_QSTR_read, read_m);
read_m[2] = MP_OBJ_NEW_SMALL_INT(1);
mp_obj_t res = mp_call_method_n_kw(1, 0, read_m);
if (res == mp_const_none) {
return -2;
}
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(res, &bufinfo, MP_BUFFER_READ);
if (bufinfo.len == 0) {
mp_printf(&mp_plat_print, "dupterm: EOF received, deactivating\n");
MP_STATE_PORT(term_obj) = NULL;
return -1;
}
nlr_pop();
return *(byte*)bufinfo.buf;
} else {
// Temporarily disable dupterm to avoid infinite recursion
mp_obj_t save_term = MP_STATE_PORT(term_obj);
MP_STATE_PORT(term_obj) = NULL;
mp_printf(&mp_plat_print, "dupterm: ");
mp_obj_print_exception(&mp_plat_print, nlr.ret_val);
MP_STATE_PORT(term_obj) = save_term;
}
return -1;
}
STATIC mp_obj_t mp_sys_print_exception(size_t n_args, const mp_obj_t *args) {
#if MICROPY_PY_IO
void *stream_obj = &mp_sys_stdout_obj;
if (n_args > 1) {
stream_obj = MP_OBJ_TO_PTR(args[1]); // XXX may fail
}
mp_print_t print = {stream_obj, mp_stream_write_adaptor};
mp_obj_print_exception(&print, args[0]);
#else
(void)n_args;
mp_obj_print_exception(&mp_plat_print, args[0]);
#endif
return mp_const_none;
}
STATIC void *thread_entry(void *args_in) {
// Execution begins here for a new thread. We do not have the GIL.
thread_entry_args_t *args = (thread_entry_args_t*)args_in;
mp_state_thread_t ts;
mp_thread_set_state(&ts);
mp_stack_set_top(&ts + 1); // need to include ts in root-pointer scan
mp_stack_set_limit(args->stack_size);
#if MICROPY_ENABLE_PYSTACK
// TODO threading and pystack is not fully supported, for now just make a small stack
mp_obj_t mini_pystack[128];
mp_pystack_init(mini_pystack, &mini_pystack[128]);
#endif
// set locals and globals from the calling context
mp_locals_set(args->dict_locals);
mp_globals_set(args->dict_globals);
MP_THREAD_GIL_ENTER();
// signal that we are set up and running
mp_thread_start();
// TODO set more thread-specific state here:
// mp_pending_exception? (root pointer)
// cur_exception (root pointer)
DEBUG_printf("[thread] start ts=%p args=%p stack=%p\n", &ts, &args, MP_STATE_THREAD(stack_top));
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_call_function_n_kw(args->fun, args->n_args, args->n_kw, args->args);
nlr_pop();
} else {
// uncaught exception
// check for SystemExit
mp_obj_base_t *exc = (mp_obj_base_t*)nlr.ret_val;
if (mp_obj_is_subclass_fast(MP_OBJ_FROM_PTR(exc->type), MP_OBJ_FROM_PTR(&mp_type_SystemExit))) {
// swallow exception silently
} else {
// print exception out
mp_printf(MICROPY_ERROR_PRINTER, "Unhandled exception in thread started by ");
mp_obj_print_helper(MICROPY_ERROR_PRINTER, args->fun, PRINT_REPR);
mp_printf(MICROPY_ERROR_PRINTER, "\n");
mp_obj_print_exception(MICROPY_ERROR_PRINTER, MP_OBJ_FROM_PTR(exc));
}
}
DEBUG_printf("[thread] finish ts=%p\n", &ts);
// signal that we are finished
mp_thread_finish();
MP_THREAD_GIL_EXIT();
return NULL;
}
// Interrupt handler
void Handle_EXTI_Irq(uint32_t line) {
if (__HAL_GPIO_EXTI_GET_FLAG(1 << line)) {
__HAL_GPIO_EXTI_CLEAR_FLAG(1 << line);
if (line < EXTI_NUM_VECTORS) {
mp_obj_t *cb = &MP_STATE_PORT(pyb_extint_callback)[line];
if (*cb != mp_const_none) {
// When executing code within a handler we must lock the GC to prevent
// any memory allocations. We must also catch any exceptions.
gc_lock();
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_call_function_1(*cb, MP_OBJ_NEW_SMALL_INT(line));
nlr_pop();
} else {
// Uncaught exception; disable the callback so it doesn't run again.
*cb = mp_const_none;
extint_disable(line);
printf("Uncaught exception in ExtInt interrupt handler line %lu\n", line);
mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
}
gc_unlock();
}
}
}
}
inline void do_str(const char *src) {
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
if (lex == NULL) {
tt_abort_msg("Lexer initialization error");
}
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
qstr source_name = lex->source_name;
mp_parse_node_t pn = mp_parse(lex, MP_PARSE_FILE_INPUT);
mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_NONE, true);
mp_call_function_0(module_fun);
nlr_pop();
} else {
mp_obj_t exc = (mp_obj_t)nlr.ret_val;
if (mp_obj_is_subclass_fast(mp_obj_get_type(exc), &mp_type_SystemExit)) {
// Assume that sys.exit() is called to skip the test.
// TODO: That can be always true, we should set up convention to
// use specific exit code as skip indicator.
tinytest_set_test_skipped_();
return;
}
mp_obj_print_exception(&mp_plat_print, exc);
tt_abort_msg("Uncaught exception");
}
end:
;
}
mp_obj_t call_function_2_protected(mp_obj_t fun, mp_obj_t arg1, mp_obj_t arg2) {
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
return mp_call_function_2(fun, arg1, arg2);
} else {
mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
return (mp_obj_t)nlr.ret_val;
}
}
void mp_uos_deactivate(const char *msg, mp_obj_t exc) {
mp_obj_t term = MP_STATE_PORT(term_obj);
MP_STATE_PORT(term_obj) = NULL;
mp_printf(&mp_plat_print, msg);
if (exc != MP_OBJ_NULL) {
mp_obj_print_exception(&mp_plat_print, exc);
}
mp_stream_close(term);
}
STATIC void execute_from_lexer(mp_lexer_t *lex, mp_parse_input_kind_t input_kind, bool is_repl) {
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);
return;
}
mp_parse_error_kind_t parse_error_kind;
mp_parse_node_t pn = mp_parse(lex, input_kind, &parse_error_kind);
if (pn == MP_PARSE_NODE_NULL) {
// parse error
mp_parse_show_exception(lex, parse_error_kind);
mp_lexer_free(lex);
return;
}
qstr source_name = mp_lexer_source_name(lex);
mp_lexer_free(lex);
/*
printf("----------------\n");
mp_parse_node_print(pn, 0);
printf("----------------\n");
*/
mp_obj_t module_fun = mp_compile(pn, source_name, emit_opt, is_repl);
if (module_fun == mp_const_none) {
// compile error
return;
}
if (compile_only) {
return;
}
// execute it
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_call_function_0(module_fun);
nlr_pop();
} else {
// uncaught exception
mp_obj_print_exception((mp_obj_t)nlr.ret_val);
}
}
mp_obj_t micropy_call_0(mp_obj_t module_obj, const char *func) {
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_obj_t py_func = mp_load_attr(module_obj, qstr_from_str(func));
mp_obj_t module_obj = mp_call_function_0(py_func);
nlr_pop();
return module_obj;
} else {
mp_obj_print_exception(&mp_plat_print, MP_OBJ_FROM_PTR(nlr.ret_val));
// uncaught exception
return 0;
}
}
STATIC void *thread_entry(void *args_in) {
// Execution begins here for a new thread. We do not have the GIL.
thread_entry_args_t *args = (thread_entry_args_t*)args_in;
mp_state_thread_t ts;
mp_thread_set_state(&ts);
mp_stack_set_top(&ts + 1); // need to include ts in root-pointer scan
mp_stack_set_limit(args->stack_size);
MP_THREAD_GIL_ENTER();
// signal that we are set up and running
mp_thread_start();
// TODO set more thread-specific state here:
// mp_pending_exception? (root pointer)
// cur_exception (root pointer)
// dict_locals? (root pointer) uPy doesn't make a new locals dict for functions, just for classes, so it's different to CPy
DEBUG_printf("[thread] start ts=%p args=%p stack=%p\n", &ts, &args, MP_STATE_THREAD(stack_top));
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_call_function_n_kw(args->fun, args->n_args, args->n_kw, args->args);
nlr_pop();
} else {
// uncaught exception
// check for SystemExit
mp_obj_base_t *exc = (mp_obj_base_t*)nlr.ret_val;
if (mp_obj_is_subclass_fast(MP_OBJ_FROM_PTR(exc->type), MP_OBJ_FROM_PTR(&mp_type_SystemExit))) {
// swallow exception silently
} else {
// print exception out
mp_printf(&mp_plat_print, "Unhandled exception in thread started by ");
mp_obj_print_helper(&mp_plat_print, args->fun, PRINT_REPR);
mp_printf(&mp_plat_print, "\n");
mp_obj_print_exception(&mp_plat_print, MP_OBJ_FROM_PTR(exc));
}
}
DEBUG_printf("[thread] finish ts=%p\n", &ts);
// signal that we are finished
mp_thread_finish();
MP_THREAD_GIL_EXIT();
return NULL;
}
mp_obj_t micropy_call_1(mp_obj_t module_obj, const char* func, const char* _arg0) {
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_obj_t py_func = mp_load_attr(module_obj, qstr_from_str(func));
mp_obj_t arg0 = mp_obj_new_str(_arg0, strnlen(_arg0,256));
mp_obj_t ret = mp_call_function_1(py_func, arg0);
nlr_pop();
return ret;
} else {
mp_obj_print_exception(&mp_plat_print, MP_OBJ_FROM_PTR(nlr.ret_val));
// uncaught exception
return 0;
}
}
void do_str(const char *src) {
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
if (lex == NULL) {
return;
}
mp_parse_error_kind_t parse_error_kind;
mp_parse_node_t pn = mp_parse(lex, MP_PARSE_SINGLE_INPUT, &parse_error_kind);
if (pn == MP_PARSE_NODE_NULL) {
// parse error
mp_parse_show_exception(lex, parse_error_kind);
mp_lexer_free(lex);
return;
}
// parse okay
qstr source_name = mp_lexer_source_name(lex);
mp_lexer_free(lex);
mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_NONE, true);
if (mp_obj_is_exception_instance(module_fun)) {
// compile error
mp_obj_print_exception(module_fun);
return;
}
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_call_function_0(module_fun);
nlr_pop();
} else {
// uncaught exception
mp_obj_print_exception((mp_obj_t)nlr.ret_val);
}
}
mp_obj_t micropy_call_2(mp_obj_t module_obj, const char *func, uint64_t code, uint64_t type) {
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_obj_t py_func = mp_load_attr(module_obj, qstr_from_str(func));
mp_obj_t arg0 = mp_obj_new_int_from_ll((long long)code);
mp_obj_t arg1 = mp_obj_new_int_from_ll((long long)type);
mp_obj_t ret = mp_call_function_2(py_func, arg0, arg1);
nlr_pop();
return ret;
} else {
mp_obj_print_exception(&mp_plat_print, MP_OBJ_FROM_PTR(nlr.ret_val));
// uncaught exception
return 0;
}
}
// If exc is SystemExit, return value where FORCED_EXIT bit set,
// and lower 8 bits are SystemExit value. For all other exceptions,
// return 1.
STATIC int handle_uncaught_exception(mp_obj_t exc) {
// check for SystemExit
if (mp_obj_is_subclass_fast(mp_obj_get_type(exc), &mp_type_SystemExit)) {
// None is an exit value of 0; an int is its value; anything else is 1
mp_obj_t exit_val = mp_obj_exception_get_value(exc);
mp_int_t val = 0;
if (exit_val != mp_const_none && !mp_obj_get_int_maybe(exit_val, &val)) {
val = 1;
}
return FORCED_EXIT | (val & 255);
}
// Report all other exceptions
mp_obj_print_exception(&mp_stderr_print, exc);
return 1;
}
STATIC int compile_and_save(const char *file, const char *output_file, const char *source_file) {
mp_lexer_t *lex = mp_lexer_new_from_file(file);
if (lex == NULL) {
printf("could not open file '%s' for reading\n", file);
return 1;
}
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
qstr source_name;
if (source_file == NULL) {
source_name = lex->source_name;
} else {
source_name = qstr_from_str(source_file);
}
#if MICROPY_PY___FILE__
if (input_kind == MP_PARSE_FILE_INPUT) {
mp_store_global(MP_QSTR___file__, MP_OBJ_NEW_QSTR(source_name));
}
#endif
mp_parse_tree_t parse_tree = mp_parse(lex, MP_PARSE_FILE_INPUT);
mp_raw_code_t *rc = mp_compile_to_raw_code(&parse_tree, source_name, emit_opt, false);
vstr_t vstr;
vstr_init(&vstr, 16);
if (output_file == NULL) {
vstr_add_str(&vstr, file);
vstr_cut_tail_bytes(&vstr, 2);
vstr_add_str(&vstr, "mpy");
} else {
vstr_add_str(&vstr, output_file);
}
mp_raw_code_save_file(rc, vstr_null_terminated_str(&vstr));
vstr_clear(&vstr);
nlr_pop();
return 0;
} else {
// uncaught exception
mp_obj_print_exception(&mp_stderr_print, (mp_obj_t)nlr.ret_val);
return 1;
}
}
void do_str(const char *src, mp_parse_input_kind_t input_kind) {
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, MP_EMIT_OPT_NONE, 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)) {
// at the moment, the value of SystemExit is unused
} else {
mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
}
}
}
void do_str(const char *src, mp_parse_input_kind_t input_kind) {
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
if (lex == NULL) {
return;
}
nlr_buf_t nlr;
if (nlr_push(&nlr) == 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, MP_EMIT_OPT_NONE, true);
mp_call_function_0(module_fun);
nlr_pop();
} else {
// uncaught exception
mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
}
}
void do_file(const char *file) {
mp_lexer_t *lex = mp_lexer_new_from_file(file);
if (lex == NULL) {
return;
}
if (0) {
// just tokenise
while (lex->tok_kind != MP_TOKEN_END) {
mp_lexer_show_token(lex);
mp_lexer_to_next(lex);
}
mp_lexer_free(lex);
} else {
// parse
mp_parse_error_kind_t parse_error_kind;
mp_parse_node_t pn = mp_parse(lex, MP_PARSE_FILE_INPUT, &parse_error_kind);
if (pn == MP_PARSE_NODE_NULL) {
// parse error
mp_parse_show_exception(lex, parse_error_kind);
mp_lexer_free(lex);
return;
}
mp_lexer_free(lex);
if (pn != MP_PARSE_NODE_NULL) {
//printf("----------------\n");
//mp_parse_node_print(pn, 0);
//printf("----------------\n");
// compile
mp_obj_t module_fun = mp_compile(pn, 0, MP_EMIT_OPT_NONE, false);
//printf("----------------\n");
if (mp_obj_is_exception_instance(module_fun)) {
mp_obj_print_exception(module_fun);
}
}
}
}
void do_str(const char *src) {
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
if (lex == NULL) {
printf("MemoryError: lexer could not allocate memory\n");
return;
}
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
qstr source_name = lex->source_name;
mp_parse_node_t pn = mp_parse(lex, MP_PARSE_SINGLE_INPUT);
mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_NONE, true);
mp_call_function_0(module_fun);
nlr_pop();
} else {
// uncaught exception
mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
}
}
STATIC int execute_from_lexer(mp_lexer_t *lex, mp_parse_input_kind_t kind, bool repl) {
if (lex == NULL) {
init_console();
printf("MemoryError: lexer could not allocate memory\n");
return ERR_MEMORY_ALLOC;
}
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
qstr source_name = lex->source_name;
if (kind == MP_PARSE_FILE_INPUT) {
mp_store_global(MP_QSTR___file__, MP_OBJ_NEW_QSTR(source_name));
}
mp_parse_tree_t parse_tree = mp_parse(lex, kind);
mp_obj_t module_fun = mp_compile(&parse_tree, source_name, MP_EMIT_OPT_NONE, repl);
mp_call_function_0(module_fun);
if (MP_STATE_VM(mp_pending_exception) != MP_OBJ_NULL) {
mp_obj_t obj = MP_STATE_VM(mp_pending_exception);
MP_STATE_VM(mp_pending_exception) = MP_OBJ_NULL;
nlr_raise(obj);
}
nlr_pop();
return 0;
} else {
if (mp_obj_exception_match(nlr.ret_val, &mp_type_SystemExit)) {
return ERR_SYS_EXIT;
}
if (mp_obj_is_exception_type(nlr.ret_val) && ((mp_obj_exception_t *) nlr.ret_val)->args != NULL && ((mp_obj_exception_t *) nlr.ret_val)->args->len == 1) {
int code = mp_obj_get_int(((mp_obj_exception_t *) nlr.ret_val)->args->items[0]);
if (code == 0xDEAD0000) {
return ERR_NETLOAD;
}
}
init_console();
mp_obj_print_exception(&mp_plat_print, MP_OBJ_FROM_PTR(nlr.ret_val));
return ERR_PARSE;
}
}
void mp_uos_dupterm_tx_strn(const char *str, size_t len) {
if (MP_STATE_PORT(term_obj) != MP_OBJ_NULL) {
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_obj_t write_m[3];
mp_load_method(MP_STATE_PORT(term_obj), MP_QSTR_write, write_m);
write_m[2] = mp_obj_new_bytearray_by_ref(len, (char*)str);
mp_call_method_n_kw(1, 0, write_m);
nlr_pop();
} else {
// Temporarily disable dupterm to avoid infinite recursion
mp_obj_t save_term = MP_STATE_PORT(term_obj);
MP_STATE_PORT(term_obj) = NULL;
mp_printf(&mp_plat_print, "dupterm: ");
mp_obj_print_exception(&mp_plat_print, nlr.ret_val);
MP_STATE_PORT(term_obj) = save_term;
}
}
}
void pyb_rtc_exec_callback(pyb_rtc_obj_t* self)
{
// execute callback if it's set
if (self->callback != mp_const_none) {
// When executing code within a handler we must lock the GC to prevent
// any memory allocations. We must also catch any exceptions.
gc_lock();
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_call_function_1(self->callback, self);
nlr_pop();
} else {
// Uncaught exception; disable the callback so it doesn't run again.
self->callback = mp_const_none;
printf("uncaught exception in RTC(%u) interrupt handler\n",RTC_ID(self));
mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
}
gc_unlock();
}
}
void do_strn(const char *src, size_t len) {
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR___main__, src, len, 0);
if (lex == NULL) {
printf("MemoryError: lexer could not allocate memory\n");
return;
}
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
qstr source_name = lex->source_name;
mp_parse_tree_t parse_tree = mp_parse(lex, MP_PARSE_FILE_INPUT);
mp_obj_t module_fun = mp_compile(&parse_tree, source_name, MP_EMIT_OPT_NONE, false);
mp_hal_set_interrupt_char(3); // allow ctrl-C to interrupt us
mp_call_function_0(module_fun);
mp_hal_set_interrupt_char(-1); // disable interrupt
nlr_pop();
} else {
// uncaught exception
mp_hal_set_interrupt_char(-1); // disable interrupt
mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
microbit_display_exception(nlr.ret_val);
}
}
//mp_lexer_t *mp_lexer_new_from_str_len(qstr src_name, const char *str, size_t len, size_t free_len)
int compile_and_save_to_buffer(const char* src_name, const char *src_buffer, size_t src_size, char* buffer, size_t size) {
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
// mp_lexer_t *lex = mp_lexer_new_from_file(file);
mp_lexer_t *lex = mp_lexer_new_from_str_len(qstr_from_str(src_name), src_buffer, src_size, false);
qstr source_name;
source_name = lex->source_name;
mp_parse_tree_t parse_tree = mp_parse(lex, MP_PARSE_FILE_INPUT);
mp_raw_code_t *rc = mp_compile_to_raw_code(&parse_tree, source_name, emit_opt, false);
int length = mp_raw_code_save_to_buffer(rc, buffer, size);
nlr_pop();
return length;
} else {
// uncaught exception
mp_obj_print_exception(&mp_stderr_print, (mp_obj_t)nlr.ret_val);
return 0;
}
}
inline void do_str(const char *src) {
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
if (lex == NULL) {
tt_abort_msg("Lexer initialization error");
}
mp_parse_error_kind_t parse_error_kind;
mp_parse_node_t pn = mp_parse(lex, MP_PARSE_FILE_INPUT, &parse_error_kind);
if (pn == MP_PARSE_NODE_NULL) {
mp_parse_show_exception(lex, parse_error_kind);
mp_lexer_free(lex);
tt_abort_msg("Parser error");
}
// parse okay
qstr source_name = mp_lexer_source_name(lex);
mp_lexer_free(lex);
mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_NONE, true);
mp_parse_node_free(pn);
if (module_fun == mp_const_none) {
tt_abort_msg("Computer error");
}
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_call_function_0(module_fun);
nlr_pop();
} else {
mp_obj_print_exception((mp_obj_t)nlr.ret_val);
tt_abort_msg("Uncaught exception");
}
end:
;
}
void mp_irq_handler (mp_obj_t self_in) {
mp_irq_obj_t *self = self_in;
if (self && self->handler != mp_const_none) {
// when executing code within a handler we must lock the GC to prevent
// any memory allocations.
gc_lock();
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_call_function_1(self->handler, self->parent);
nlr_pop();
}
else {
// uncaught exception; disable the callback so that it doesn't run again
self->methods->disable (self->parent);
self->handler = mp_const_none;
// signal the error using the heart beat led and
// by printing a message
printf("Uncaught exception in callback handler\n");
mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
mperror_signal_error();
}
gc_unlock();
}
}
// parses, compiles and executes the code in the lexer
// frees the lexer before returning
// EXEC_FLAG_PRINT_EOF prints 2 EOF chars: 1 after normal output, 1 after exception output
// EXEC_FLAG_ALLOW_DEBUGGING allows debugging info to be printed after executing the code
// EXEC_FLAG_IS_REPL is used for REPL inputs (flag passed on to mp_compile)
STATIC int parse_compile_execute(const void *source, mp_parse_input_kind_t input_kind, int exec_flags) {
int ret = 0;
// by default a SystemExit exception returns 0
pyexec_system_exit = 0;
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_obj_t module_fun;
#if MICROPY_MODULE_FROZEN_MPY
if (exec_flags & EXEC_FLAG_SOURCE_IS_RAW_CODE) {
// source is a raw_code object, create the function
module_fun = mp_make_function_from_raw_code(source, MP_OBJ_NULL, MP_OBJ_NULL);
} else
#endif
{
#if MICROPY_ENABLE_COMPILER
mp_lexer_t *lex;
if (exec_flags & EXEC_FLAG_SOURCE_IS_VSTR) {
const vstr_t *vstr = source;
lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, vstr->buf, vstr->len, 0);
} else if (exec_flags & EXEC_FLAG_SOURCE_IS_FILENAME) {
lex = mp_lexer_new_from_file(source);
} else {
lex = (mp_lexer_t*)source;
}
// source is a lexer, parse and compile the script
qstr source_name = lex->source_name;
mp_parse_tree_t parse_tree = mp_parse(lex, input_kind);
module_fun = mp_compile(&parse_tree, source_name, MP_EMIT_OPT_NONE, exec_flags & EXEC_FLAG_IS_REPL);
#else
mp_raise_msg(&mp_type_RuntimeError, "script compilation not supported");
#endif
}
// execute code
mp_hal_set_interrupt_char(CHAR_CTRL_C); // allow ctrl-C to interrupt us
mp_call_function_0(module_fun);
mp_hal_set_interrupt_char(-1); // disable interrupt
nlr_pop();
ret = 1;
if (exec_flags & EXEC_FLAG_PRINT_EOF) {
mp_hal_stdout_tx_strn("\x04", 1);
}
} else {
// uncaught exception
// FIXME it could be that an interrupt happens just before we disable it here
mp_hal_set_interrupt_char(-1); // disable interrupt
// print EOF after normal output
if (exec_flags & EXEC_FLAG_PRINT_EOF) {
mp_hal_stdout_tx_strn("\x04", 1);
}
// check for SystemExit
if (mp_obj_is_subclass_fast(mp_obj_get_type((mp_obj_t)nlr.ret_val), &mp_type_SystemExit)) {
// at the moment, the value of SystemExit is unused
ret = pyexec_system_exit;
} else {
mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
ret = 0;
}
}
if (exec_flags & EXEC_FLAG_PRINT_EOF) {
mp_hal_stdout_tx_strn("\x04", 1);
}
return ret;
}
// returns standard error codes: 0 for success, 1 for all other errors
STATIC int execute_from_lexer(mp_lexer_t *lex, mp_parse_input_kind_t input_kind, bool is_repl) {
if (lex == NULL) {
return 1;
}
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);
return 0;
}
mp_parse_error_kind_t parse_error_kind;
mp_parse_node_t pn = mp_parse(lex, input_kind, &parse_error_kind);
if (pn == MP_PARSE_NODE_NULL) {
// parse error
mp_parse_show_exception(lex, parse_error_kind);
mp_lexer_free(lex);
return 1;
}
qstr source_name = mp_lexer_source_name(lex);
#if MICROPY_PY___FILE__
if (input_kind == MP_PARSE_FILE_INPUT) {
mp_store_global(MP_QSTR___file__, MP_OBJ_NEW_QSTR(source_name));
}
#endif
mp_lexer_free(lex);
/*
printf("----------------\n");
mp_parse_node_print(pn, 0);
printf("----------------\n");
*/
mp_obj_t module_fun = mp_compile(pn, source_name, emit_opt, is_repl);
if (module_fun == mp_const_none) {
// compile error
return 1;
}
if (compile_only) {
return 0;
}
// execute it
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_call_function_0(module_fun);
nlr_pop();
return 0;
} else {
// uncaught exception
// check for SystemExit
mp_obj_t exc = (mp_obj_t)nlr.ret_val;
if (mp_obj_is_subclass_fast(mp_obj_get_type(exc), &mp_type_SystemExit)) {
mp_obj_t exit_val = mp_obj_exception_get_value(exc);
mp_int_t val;
if (!mp_obj_get_int_maybe(exit_val, &val)) {
val = 0;
}
exit(val);
}
mp_obj_print_exception((mp_obj_t)nlr.ret_val);
return 1;
}
}
// parses, compiles and executes the code in the lexer
// frees the lexer before returning
// EXEC_FLAG_PRINT_EOF prints 2 EOF chars: 1 after normal output, 1 after exception output
// EXEC_FLAG_ALLOW_DEBUGGING allows debugging info to be printed after executing the code
// EXEC_FLAG_IS_REPL is used for REPL inputs (flag passed on to mp_compile)
STATIC int parse_compile_execute(mp_lexer_t *lex, mp_parse_input_kind_t input_kind, int exec_flags) {
int ret = 0;
mp_parse_error_kind_t parse_error_kind;
mp_parse_node_t pn = mp_parse(lex, input_kind, &parse_error_kind);
qstr source_name = mp_lexer_source_name(lex);
// check for parse error
if (pn == MP_PARSE_NODE_NULL) {
if (exec_flags & EXEC_FLAG_PRINT_EOF) {
stdout_tx_strn("\x04", 1);
}
mp_parse_show_exception(lex, parse_error_kind);
mp_lexer_free(lex);
goto finish;
}
mp_lexer_free(lex);
mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_NONE, exec_flags & EXEC_FLAG_IS_REPL);
// check for compile error
if (mp_obj_is_exception_instance(module_fun)) {
if (exec_flags & EXEC_FLAG_PRINT_EOF) {
stdout_tx_strn("\x04", 1);
}
mp_obj_print_exception(module_fun);
goto finish;
}
// execute code
nlr_buf_t nlr;
uint32_t start = HAL_GetTick();
if (nlr_push(&nlr) == 0) {
mp_hal_set_interrupt_char(CHAR_CTRL_C); // allow ctrl-C to interrupt us
mp_call_function_0(module_fun);
mp_hal_set_interrupt_char(-1); // disable interrupt
nlr_pop();
ret = 1;
if (exec_flags & EXEC_FLAG_PRINT_EOF) {
stdout_tx_strn("\x04", 1);
}
} else {
// uncaught exception
// FIXME it could be that an interrupt happens just before we disable it here
mp_hal_set_interrupt_char(-1); // disable interrupt
// print EOF after normal output
if (exec_flags & EXEC_FLAG_PRINT_EOF) {
stdout_tx_strn("\x04", 1);
}
// check for SystemExit
if (mp_obj_is_subclass_fast(mp_obj_get_type((mp_obj_t)nlr.ret_val), &mp_type_SystemExit)) {
// at the moment, the value of SystemExit is unused
ret = PYEXEC_FORCED_EXIT;
} else {
mp_obj_print_exception((mp_obj_t)nlr.ret_val);
ret = 0;
}
}
// display debugging info if wanted
if ((exec_flags & EXEC_FLAG_ALLOW_DEBUGGING) && repl_display_debugging_info) {
mp_uint_t ticks = HAL_GetTick() - start; // TODO implement a function that does this properly
printf("took " UINT_FMT " ms\n", ticks);
gc_collect();
// qstr info
{
mp_uint_t n_pool, n_qstr, n_str_data_bytes, n_total_bytes;
qstr_pool_info(&n_pool, &n_qstr, &n_str_data_bytes, &n_total_bytes);
printf("qstr:\n n_pool=" UINT_FMT "\n n_qstr=" UINT_FMT "\n n_str_data_bytes=" UINT_FMT "\n n_total_bytes=" UINT_FMT "\n", n_pool, n_qstr, n_str_data_bytes, n_total_bytes);
}
// GC info
{
gc_info_t info;
gc_info(&info);
printf("GC:\n");
printf(" " UINT_FMT " total\n", info.total);
printf(" " UINT_FMT " : " UINT_FMT "\n", info.used, info.free);
printf(" 1=" UINT_FMT " 2=" UINT_FMT " m=" UINT_FMT "\n", info.num_1block, info.num_2block, info.max_block);
}
}
finish:
if (exec_flags & EXEC_FLAG_PRINT_EOF) {
stdout_tx_strn("\x04", 1);
}
return ret;
}
// parses, compiles and executes the code in the lexer
// frees the lexer before returning
// EXEC_FLAG_PRINT_EOF prints 2 EOF chars: 1 after normal output, 1 after exception output
// EXEC_FLAG_ALLOW_DEBUGGING allows debugging info to be printed after executing the code
// EXEC_FLAG_IS_REPL is used for REPL inputs (flag passed on to mp_compile)
STATIC int parse_compile_execute(mp_lexer_t *lex, mp_parse_input_kind_t input_kind, int exec_flags) {
int ret = 0;
uint32_t start = 0;
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
// parse and compile the script
qstr source_name = lex->source_name;
mp_parse_node_t pn = mp_parse(lex, input_kind);
mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_NONE, exec_flags & EXEC_FLAG_IS_REPL);
// execute code
mp_hal_set_interrupt_char(CHAR_CTRL_C); // allow ctrl-C to interrupt us
start = HAL_GetTick();
mp_call_function_0(module_fun);
mp_hal_set_interrupt_char(-1); // disable interrupt
nlr_pop();
ret = 1;
if (exec_flags & EXEC_FLAG_PRINT_EOF) {
mp_hal_stdout_tx_strn("\x04", 1);
}
} else {
// uncaught exception
// FIXME it could be that an interrupt happens just before we disable it here
mp_hal_set_interrupt_char(-1); // disable interrupt
// print EOF after normal output
if (exec_flags & EXEC_FLAG_PRINT_EOF) {
mp_hal_stdout_tx_strn("\x04", 1);
}
// check for SystemExit
if (mp_obj_is_subclass_fast(mp_obj_get_type((mp_obj_t)nlr.ret_val), &mp_type_SystemExit)) {
// at the moment, the value of SystemExit is unused
ret = PYEXEC_FORCED_EXIT;
} else {
mp_obj_print_exception(printf_wrapper, NULL, (mp_obj_t)nlr.ret_val);
ret = 0;
}
}
// display debugging info if wanted
if ((exec_flags & EXEC_FLAG_ALLOW_DEBUGGING) && repl_display_debugging_info) {
mp_uint_t ticks = HAL_GetTick() - start; // TODO implement a function that does this properly
printf("took " UINT_FMT " ms\n", ticks);
gc_collect();
// qstr info
{
mp_uint_t n_pool, n_qstr, n_str_data_bytes, n_total_bytes;
qstr_pool_info(&n_pool, &n_qstr, &n_str_data_bytes, &n_total_bytes);
printf("qstr:\n n_pool=" UINT_FMT "\n n_qstr=" UINT_FMT "\n n_str_data_bytes=" UINT_FMT "\n n_total_bytes=" UINT_FMT "\n", n_pool, n_qstr, n_str_data_bytes, n_total_bytes);
}
// GC info
gc_dump_info();
}
if (exec_flags & EXEC_FLAG_PRINT_EOF) {
mp_hal_stdout_tx_strn("\x04", 1);
}
return ret;
}