circuitpython/minimal/main.c

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#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "py/nlr.h"
#include "py/parsehelper.h"
#include "py/compile.h"
#include "py/runtime.h"
#include "py/repl.h"
#include "py/pfenv.h"
#include "py/gc.h"
#include "pyexec.h"
#include "pybstdio.h"
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 = lex->source_name;
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(printf_wrapper, NULL, 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(printf_wrapper, NULL, (mp_obj_t)nlr.ret_val);
}
}
static char *stack_top;
static char heap[2048];
int main(int argc, char **argv) {
int stack_dummy;
stack_top = (char*)&stack_dummy;
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#if MICROPY_ENABLE_GC
gc_init(heap, heap + sizeof(heap));
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#endif
mp_init();
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#if MICROPY_REPL_EVENT_DRIVEN
pyexec_friendly_repl_init();
for (;;) {
int c = stdin_rx_chr();
if (pyexec_friendly_repl_process_char(c)) {
break;
}
}
#else
pyexec_friendly_repl();
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#endif
//do_str("print('hello world!', list(x+1 for x in range(10)), end='eol\\n')");
mp_deinit();
return 0;
}
void gc_collect(void) {
// WARNING: This gc_collect implementation doesn't try to get root
// pointers from CPU registers, and thus may function incorrectly.
void *dummy;
gc_collect_start();
gc_collect_root(&dummy, ((mp_uint_t)stack_top - (mp_uint_t)&dummy) / sizeof(mp_uint_t));
gc_collect_end();
gc_dump_info();
}
mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
return NULL;
}
mp_import_stat_t mp_import_stat(const char *path) {
return MP_IMPORT_STAT_NO_EXIST;
}
mp_obj_t mp_builtin_open(uint 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) {
}
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
#if !MICROPY_MIN_USE_STDOUT
void _start(void) {main(0, NULL);}
#endif