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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2015 Paul Sokolovsky
* Copyright (c) 2016 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <string.h>
#include <stdint.h>
#include "py/lexer.h"
#include "py/frozenmod.h"
#if MICROPY_MODULE_FROZEN_STR
#ifndef MICROPY_MODULE_FROZEN_LEXER
#define MICROPY_MODULE_FROZEN_LEXER mp_lexer_new_from_str_len
#else
mp_lexer_t *MICROPY_MODULE_FROZEN_LEXER(qstr src_name, const char *str, mp_uint_t len, mp_uint_t free_len);
#endif
extern const char mp_frozen_str_names[];
extern const uint32_t mp_frozen_str_sizes[];
extern const char mp_frozen_str_content[];
// On input, *len contains size of name, on output - size of content
const char *mp_find_frozen_str(const char *str, size_t *len) {
const char *name = mp_frozen_str_names;
size_t offset = 0;
for (int i = 0; *name != 0; i++) {
size_t l = strlen(name);
if (l == *len && !memcmp(str, name, l)) {
*len = mp_frozen_str_sizes[i];
return mp_frozen_str_content + offset;
}
name += l + 1;
offset += mp_frozen_str_sizes[i] + 1;
}
return NULL;
}
STATIC mp_lexer_t *mp_lexer_frozen_str(const char *str, size_t len) {
size_t name_len = len;
const char *content = mp_find_frozen_str(str, &len);
if (content == NULL) {
return NULL;
}
qstr source = qstr_from_strn(str, name_len);
mp_lexer_t *lex = MICROPY_MODULE_FROZEN_LEXER(source, content, len, 0);
return lex;
}
#endif
#if MICROPY_MODULE_FROZEN_MPY
#include "py/emitglue.h"
extern const char mp_frozen_mpy_names[];
extern const mp_raw_code_t *const mp_frozen_mpy_content[];
STATIC const mp_raw_code_t *mp_find_frozen_mpy(const char *str, size_t len) {
const char *name = mp_frozen_mpy_names;
for (size_t i = 0; *name != 0; i++) {
size_t l = strlen(name);
if (l == len && !memcmp(str, name, l)) {
return mp_frozen_mpy_content[i];
}
name += l + 1;
}
return NULL;
}
#endif
#if MICROPY_MODULE_FROZEN
STATIC mp_import_stat_t mp_frozen_stat_helper(const char *name, const char *str) {
size_t len = strlen(str);
for (int i = 0; *name != 0; i++) {
size_t l = strlen(name);
if (l >= len && !memcmp(str, name, len)) {
if (name[len] == 0) {
return MP_IMPORT_STAT_FILE;
} else if (name[len] == '/') {
return MP_IMPORT_STAT_DIR;
}
}
name += l + 1;
}
return MP_IMPORT_STAT_NO_EXIST;
}
mp_import_stat_t mp_frozen_stat(const char *str) {
mp_import_stat_t stat;
#if MICROPY_MODULE_FROZEN_STR
stat = mp_frozen_stat_helper(mp_frozen_str_names, str);
if (stat != MP_IMPORT_STAT_NO_EXIST) {
return stat;
}
#endif
#if MICROPY_MODULE_FROZEN_MPY
stat = mp_frozen_stat_helper(mp_frozen_mpy_names, str);
if (stat != MP_IMPORT_STAT_NO_EXIST) {
return stat;
}
#endif
return MP_IMPORT_STAT_NO_EXIST;
}
int mp_find_frozen_module(const char *str, size_t len, void **data) {
#if MICROPY_MODULE_FROZEN_STR
mp_lexer_t *lex = mp_lexer_frozen_str(str, len);
if (lex != NULL) {
*data = lex;
return MP_FROZEN_STR;
}
#endif
#if MICROPY_MODULE_FROZEN_MPY
const mp_raw_code_t *rc = mp_find_frozen_mpy(str, len);
if (rc != NULL) {
*data = (void*)rc;
return MP_FROZEN_MPY;
}
#endif
return MP_FROZEN_NONE;
}
#endif
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