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py: Instead of having "debug on" var, have "optimization level" var.

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This allows to have multiple "optimization" levels (CPython has two
(-OO removes docstrings), we can have more).
This commit is contained in:
Paul Sokolovsky 2014-06-02 19:37:55 +03:00
parent 509c7a7854
commit d3439d0c60
5 changed files with 16 additions and 14 deletions
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9
py/lexer.c
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@ -64,12 +64,7 @@ struct _mp_lexer_t {
mp_token_t tok_cur;
};
// debug flag for __debug__ constant
STATIC mp_token_kind_t mp_debug_value;
void mp_set_debug(bool value) {
mp_debug_value = value ? MP_TOKEN_KW_TRUE : MP_TOKEN_KW_FALSE;
}
uint mp_optimise_value;
// TODO replace with a call to a standard function
bool str_strn_equal(const char *str, const char *strn, int len) {
@ -703,7 +698,7 @@ STATIC void mp_lexer_next_token_into(mp_lexer_t *lex, mp_token_t *tok, bool firs
if (str_strn_equal(tok_kw[i], tok->str, tok->len)) {
if (i == ARRAY_SIZE(tok_kw) - 1) {
// tok_kw[ARRAY_SIZE(tok_kw) - 1] == "__debug__"
tok->kind = mp_debug_value;
tok->kind = (mp_optimise_value == 0 ? MP_TOKEN_KW_TRUE : MP_TOKEN_KW_FALSE);
} else {
tok->kind = MP_TOKEN_KW_FALSE + i;
}

2
py/lexer.h
View File

@ -176,3 +176,5 @@ typedef enum {
mp_import_stat_t mp_import_stat(const char *path);
mp_lexer_t *mp_lexer_new_from_file(const char *filename);
extern uint mp_optimise_value;

5
py/runtime.c
View File

@ -45,6 +45,7 @@
#include "bc.h"
#include "smallint.h"
#include "objgenerator.h"
#include "lexer.h"
#if 0 // print debugging info
#define DEBUG_PRINT (1)
@ -74,8 +75,8 @@ void mp_init(void) {
MICROPY_PORT_INIT_FUNC;
#endif
// __debug__ enabled by default
mp_set_debug(true);
// optimization disabled by default
mp_optimise_value = 0;
// init global module stuff
mp_module_init();

2
py/runtime.h
View File

@ -54,8 +54,6 @@ typedef struct _mp_arg_t {
void mp_init(void);
void mp_deinit(void);
void mp_set_debug(bool value); // sets the value of __debug__; see lexer.c
void mp_arg_check_num(uint n_args, uint n_kw, uint n_args_min, uint n_args_max, bool takes_kw);
void mp_arg_parse_all(uint n_pos, const mp_obj_t *pos, mp_map_t *kws, uint n_allowed, const mp_arg_t *allowed, mp_arg_val_t *out_vals);
void mp_arg_parse_all_kw_array(uint n_pos, uint n_kw, const mp_obj_t *args, uint n_allowed, const mp_arg_t *allowed, mp_arg_val_t *out_vals);

12
unix/main.c
View File

@ -30,6 +30,7 @@
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <ctype.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <errno.h>
@ -188,6 +189,7 @@ int usage(char **argv) {
"usage: %s [<opts>] [-X <implopt>] [-c <command>] [<filename>]\n"
"Options:\n"
"-v : verbose (trace various operations); can be multiple\n"
"-O[N] : apply bytecode optimizations of level N\n"
"\n"
"Implementation specific options:\n", argv[0]
);
@ -346,9 +348,13 @@ int main(int argc, char **argv) {
a += 1;
} else if (strcmp(argv[a], "-v") == 0) {
mp_verbose_flag++;
} else if (strcmp(argv[a], "-O") == 0) {
// optimisation; sets __debug__ to False
mp_set_debug(false);
} else if (strncmp(argv[a], "-O", 2) == 0) {
if (isdigit(argv[a][2])) {
mp_optimise_value = argv[a][2] & 0xf;
} else {
mp_optimise_value = 0;
for (char *p = argv[a] + 1; *p && *p == 'O'; p++, mp_optimise_value++);
}
} else {
return usage(argv);
}