STATIC mp_obj_t gen_resume_and_raise(mp_obj_t self_in, mp_obj_t send_value, mp_obj_t throw_value) {
mp_obj_t ret;
switch (mp_obj_gen_resume(self_in, send_value, throw_value, &ret)) {
case MP_VM_RETURN_NORMAL:
// Optimize return w/o value in case generator is used in for loop
if (ret == mp_const_none || ret == MP_OBJ_STOP_ITERATION) {
return MP_OBJ_STOP_ITERATION;
} else {
nlr_raise(mp_obj_new_exception_args(&mp_type_StopIteration, 1, &ret));
}
case MP_VM_RETURN_YIELD:
if (throw_value != MP_OBJ_NULL && mp_obj_is_subclass_fast(mp_obj_get_type(throw_value), &mp_type_GeneratorExit)) {
nlr_raise(mp_obj_new_exception_msg(&mp_type_RuntimeError, "generator ignored GeneratorExit"));
}
return ret;
case MP_VM_RETURN_EXCEPTION:
// TODO: Optimization of returning MP_OBJ_STOP_ITERATION is really part
// of mp_iternext() protocol, but this function is called by other methods
// too, which may not handled MP_OBJ_STOP_ITERATION.
if (mp_obj_is_subclass_fast(mp_obj_get_type(ret), &mp_type_StopIteration)) {
return MP_OBJ_STOP_ITERATION;
} else {
nlr_raise(ret);
}
default:
assert(0);
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;
}
// Return true if exception (type or instance) is a subclass of given
// exception type. Assumes exc_type is a subclass of BaseException, as
// defined by mp_obj_is_exception_type(exc_type).
bool mp_obj_exception_match(mp_obj_t exc, mp_const_obj_t exc_type) {
// if exc is an instance of an exception, then extract and use its type
if (mp_obj_is_exception_instance(exc)) {
exc = MP_OBJ_FROM_PTR(mp_obj_get_type(exc));
}
return mp_obj_is_subclass_fast(exc, exc_type);
}
mp_obj_t mp_obj_tuple_binary_op(mp_uint_t op, mp_obj_t lhs, mp_obj_t rhs) {
mp_obj_tuple_t *o = lhs;
switch (op) {
case MP_BINARY_OP_ADD: {
if (!mp_obj_is_subclass_fast(mp_obj_get_type(rhs), (mp_obj_t)&mp_type_tuple)) {
return MP_OBJ_NULL; // op not supported
}
mp_obj_tuple_t *p = rhs;
mp_obj_tuple_t *s = mp_obj_new_tuple(o->len + p->len, NULL);
mp_seq_cat(s->items, o->items, o->len, p->items, p->len, mp_obj_t);
return s;
}
case MP_BINARY_OP_MULTIPLY: {
mp_int_t n;
if (!mp_obj_get_int_maybe(rhs, &n)) {
return MP_OBJ_NULL; // op not supported
}
if (n <= 0) {
return mp_const_empty_tuple;
}
mp_obj_tuple_t *s = mp_obj_new_tuple(o->len * n, NULL);
mp_seq_multiply(o->items, sizeof(*o->items), o->len, n, s->items);
return s;
}
case MP_BINARY_OP_EQUAL:
case MP_BINARY_OP_LESS:
case MP_BINARY_OP_LESS_EQUAL:
case MP_BINARY_OP_MORE:
case MP_BINARY_OP_MORE_EQUAL:
return MP_BOOL(tuple_cmp_helper(op, lhs, rhs));
default:
return MP_OBJ_NULL; // op not supported
}
}
STATIC mp_obj_t gen_resume_and_raise(mp_obj_t self_in, mp_obj_t send_value, mp_obj_t throw_value) {
mp_obj_t ret;
switch (mp_obj_gen_resume(self_in, send_value, throw_value, &ret)) {
case MP_VM_RETURN_NORMAL:
default:
// Optimize return w/o value in case generator is used in for loop
if (ret == mp_const_none || ret == MP_OBJ_STOP_ITERATION) {
return MP_OBJ_STOP_ITERATION;
} else {
nlr_raise(mp_obj_new_exception_args(&mp_type_StopIteration, 1, &ret));
}
case MP_VM_RETURN_YIELD:
return ret;
case MP_VM_RETURN_EXCEPTION:
// TODO: Optimization of returning MP_OBJ_STOP_ITERATION is really part
// of mp_iternext() protocol, but this function is called by other methods
// too, which may not handled MP_OBJ_STOP_ITERATION.
if (mp_obj_is_subclass_fast(MP_OBJ_FROM_PTR(mp_obj_get_type(ret)), MP_OBJ_FROM_PTR(&mp_type_StopIteration))) {
mp_obj_t val = mp_obj_exception_get_value(ret);
if (val == mp_const_none) {
return MP_OBJ_STOP_ITERATION;
}
}
nlr_raise(ret);
}
}
mp_obj_t mp_obj_tuple_binary_op(int op, mp_obj_t lhs, mp_obj_t rhs) {
mp_obj_tuple_t *o = lhs;
switch (op) {
case MP_BINARY_OP_ADD: {
if (!mp_obj_is_subclass_fast(mp_obj_get_type(rhs), (mp_obj_t)&mp_type_tuple)) {
return MP_OBJ_NULL; // op not supported
}
mp_obj_tuple_t *p = rhs;
mp_obj_tuple_t *s = mp_obj_new_tuple(o->len + p->len, NULL);
mp_seq_cat(s->items, o->items, o->len, p->items, p->len, mp_obj_t);
return s;
}
case MP_BINARY_OP_MULTIPLY: {
if (!MP_OBJ_IS_SMALL_INT(rhs)) {
return MP_OBJ_NULL; // op not supported
}
int n = MP_OBJ_SMALL_INT_VALUE(rhs);
mp_obj_tuple_t *s = mp_obj_new_tuple(o->len * n, NULL);
mp_seq_multiply(o->items, sizeof(*o->items), o->len, n, s->items);
return s;
}
case MP_BINARY_OP_EQUAL:
case MP_BINARY_OP_LESS:
case MP_BINARY_OP_LESS_EQUAL:
case MP_BINARY_OP_MORE:
case MP_BINARY_OP_MORE_EQUAL:
return MP_BOOL(tuple_cmp_helper(op, lhs, rhs));
default:
return MP_OBJ_NULL; // op not supported
}
}
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:
;
}
// return true if the given object is an exception type
bool mp_obj_is_exception_type(mp_obj_t self_in) {
if (MP_OBJ_IS_TYPE(self_in, &mp_type_type)) {
// optimisation when self_in is a builtin exception
mp_obj_type_t *self = self_in;
if (self->make_new == mp_obj_exception_make_new) {
return true;
}
}
return mp_obj_is_subclass_fast(self_in, &mp_type_BaseException);
}
STATIC mp_obj_t gen_instance_close(mp_obj_t self_in) {
mp_obj_t ret;
switch (mp_obj_gen_resume(self_in, mp_const_none, (mp_obj_t)&mp_const_GeneratorExit_obj, &ret)) {
case MP_VM_RETURN_YIELD:
nlr_raise(mp_obj_new_exception_msg(&mp_type_RuntimeError, "generator ignored GeneratorExit"));
// Swallow StopIteration & GeneratorExit (== successful close), and re-raise any other
case MP_VM_RETURN_EXCEPTION:
// ret should always be an instance of an exception class
if (mp_obj_is_subclass_fast(mp_obj_get_type(ret), &mp_type_GeneratorExit) ||
mp_obj_is_subclass_fast(mp_obj_get_type(ret), &mp_type_StopIteration)) {
return mp_const_none;
}
nlr_raise(ret);
default:
// The only choice left is MP_VM_RETURN_NORMAL which is successful close
return mp_const_none;
}
}
mp_obj_t tuple_binary_op(int op, mp_obj_t lhs, mp_obj_t rhs) {
mp_obj_tuple_t *o = lhs;
switch (op) {
case MP_BINARY_OP_SUBSCR:
{
#if MICROPY_ENABLE_SLICE
if (MP_OBJ_IS_TYPE(rhs, &mp_type_slice)) {
machine_uint_t start, stop;
if (!m_seq_get_fast_slice_indexes(o->len, rhs, &start, &stop)) {
assert(0);
}
mp_obj_tuple_t *res = mp_obj_new_tuple(stop - start, NULL);
m_seq_copy(res->items, o->items + start, res->len, mp_obj_t);
return res;
}
#endif
uint index = mp_get_index(o->base.type, o->len, rhs, false);
return o->items[index];
}
case MP_BINARY_OP_ADD:
{
if (!mp_obj_is_subclass_fast(mp_obj_get_type(rhs), (mp_obj_t)&mp_type_tuple)) {
return NULL;
}
mp_obj_tuple_t *p = rhs;
mp_obj_tuple_t *s = mp_obj_new_tuple(o->len + p->len, NULL);
m_seq_cat(s->items, o->items, o->len, p->items, p->len, mp_obj_t);
return s;
}
case MP_BINARY_OP_MULTIPLY:
{
if (!MP_OBJ_IS_SMALL_INT(rhs)) {
return NULL;
}
int n = MP_OBJ_SMALL_INT_VALUE(rhs);
mp_obj_tuple_t *s = mp_obj_new_tuple(o->len * n, NULL);
mp_seq_multiply(o->items, sizeof(*o->items), o->len, n, s->items);
return s;
}
case MP_BINARY_OP_EQUAL:
case MP_BINARY_OP_LESS:
case MP_BINARY_OP_LESS_EQUAL:
case MP_BINARY_OP_MORE:
case MP_BINARY_OP_MORE_EQUAL:
return MP_BOOL(tuple_cmp_helper(op, lhs, rhs));
case MP_BINARY_OP_NOT_EQUAL:
return MP_BOOL(!tuple_cmp_helper(MP_BINARY_OP_EQUAL, lhs, rhs));
default:
// op not supported
return NULL;
}
}
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;
}
// 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;
}
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);
}
}
}
STATIC mp_obj_t gen_instance_throw(uint n_args, const mp_obj_t *args) {
mp_obj_t exc = (n_args == 2) ? args[1] : args[2];
exc = mp_make_raise_obj(exc);
if (mp_obj_is_subclass_fast(mp_obj_get_type(exc), &mp_type_GeneratorExit)) {
// Throwing GeneratorExit is equivalent of calling close aka
// GeneratorExit should be handled specially
// TODO: Calling .close() will throw new exception instance, not one
// given to throw, which is not ok.
return gen_instance_close(args[0]);
}
mp_obj_t ret = gen_resume_and_raise(args[0], mp_const_none, exc);
if (ret == MP_OBJ_NULL) {
nlr_jump(mp_obj_new_exception(&mp_type_StopIteration));
} else {
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;
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(const void *source, mp_parse_input_kind_t input_kind, int exec_flags) {
int ret = 0;
uint32_t start = 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
start = mp_hal_ticks_ms();
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;
}
}
// display debugging info if wanted
if ((exec_flags & EXEC_FLAG_ALLOW_DEBUGGING) && repl_display_debugging_info) {
mp_uint_t ticks = mp_hal_ticks_ms() - start; // TODO implement a function that does this properly
printf("took " UINT_FMT " ms\n", ticks);
// qstr info
{
size_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",
(unsigned)n_pool, (unsigned)n_qstr, (unsigned)n_str_data_bytes, (unsigned)n_total_bytes);
}
#if MICROPY_ENABLE_GC
// run collection and print GC info
gc_collect();
gc_dump_info();
#endif
}
if (exec_flags & EXEC_FLAG_PRINT_EOF) {
mp_hal_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(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;
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;
}