STATIC mp_obj_t parse_compile_execute(mp_obj_t o_in, mp_parse_input_kind_t parse_input_kind) {
uint str_len;
const char *str = mp_obj_str_get_data(o_in, &str_len);
// create the lexer
mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_string_gt_, str, str_len, 0);
qstr source_name = mp_lexer_source_name(lex);
// parse the string
mp_parse_error_kind_t parse_error_kind;
mp_parse_node_t pn = mp_parse(lex, parse_input_kind, &parse_error_kind);
mp_lexer_free(lex);
if (pn == MP_PARSE_NODE_NULL) {
// parse error; raise exception
nlr_jump(mp_parse_make_exception(parse_error_kind));
}
// compile the string
mp_obj_t module_fun = mp_compile(pn, source_name, false);
mp_parse_node_free(pn);
if (module_fun == mp_const_none) {
// TODO handle compile error correctly
return mp_const_none;
}
// complied successfully, execute it
return rt_call_function_0(module_fun);
}
STATIC void do_load(mp_obj_t module_obj, vstr_t *file) {
// create the lexer
mp_lexer_t *lex = mp_lexer_new_from_file(vstr_str(file));
if (lex == NULL) {
// we verified the file exists using stat, but lexer could still fail
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ImportError, "No module named '%s'", vstr_str(file)));
}
qstr source_name = mp_lexer_source_name(lex);
// save the old context
mp_obj_dict_t *old_locals = mp_locals_get();
mp_obj_dict_t *old_globals = mp_globals_get();
// set the new context
mp_locals_set(mp_obj_module_get_globals(module_obj));
mp_globals_set(mp_obj_module_get_globals(module_obj));
// parse the imported script
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; clean up and raise exception
mp_obj_t exc = mp_parse_make_exception(lex, parse_error_kind);
mp_lexer_free(lex);
mp_locals_set(old_locals);
mp_globals_set(old_globals);
nlr_raise(exc);
}
mp_lexer_free(lex);
// compile the imported script
mp_obj_t module_fun = mp_compile(pn, source_name, MP_EMIT_OPT_NONE, false);
mp_parse_node_free(pn);
if (module_fun == mp_const_none) {
// TODO handle compile error correctly
mp_locals_set(old_locals);
mp_globals_set(old_globals);
nlr_raise(mp_obj_new_exception_msg(&mp_type_SyntaxError, "Syntax error in imported module"));
}
// complied successfully, execute it
nlr_buf_t nlr;
if (nlr_push(&nlr) == 0) {
mp_call_function_0(module_fun);
nlr_pop();
} else {
// exception; restore context and re-raise same exception
mp_locals_set(old_locals);
mp_globals_set(old_globals);
nlr_raise(nlr.ret_val);
}
mp_locals_set(old_locals);
mp_globals_set(old_globals);
}
