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py/lexer: Provide generic mp_lexer_new_from_file based on mp_reader. 

If a port defines MICROPY_READER_POSIX or MICROPY_READER_FATFS then
lexer.c now provides an implementation of mp_lexer_new_from_file using
the mp_reader_new_file function.
This commit is contained in:
Damien George 2016-11-16 16:25:06 +11:00
parent 511c083811
commit e5ef15a9d7
10 changed files with 16 additions and 151 deletions
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1
cc3200/application.mk
View File

@ -162,7 +162,6 @@ APP_STM_SRC_C = $(addprefix stmhal/,\
import.c \
input.c \
irq.c \
lexerfatfs.c \
moduselect.c \
pybstdio.c \
)

8
esp8266/main.c
View File

@ -109,17 +109,13 @@ void user_init(void) {
system_init_done_cb(init_done);
}
mp_lexer_t *fat_vfs_lexer_new_from_file(const char *filename);
mp_import_stat_t fat_vfs_import_stat(const char *path);
#if !MICROPY_VFS_FAT
mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
#if MICROPY_VFS_FAT
return fat_vfs_lexer_new_from_file(filename);
#else
(void)filename;
return NULL;
#endif
}
#endif
mp_import_stat_t mp_import_stat(const char *path) {
#if MICROPY_VFS_FAT

2
esp8266/mpconfigport.h
View File

@ -16,7 +16,7 @@
#define MICROPY_MEM_STATS (0)
#define MICROPY_DEBUG_PRINTERS (1)
#define MICROPY_DEBUG_PRINTER_DEST mp_debug_print
#define MICROPY_READER_FATFS (1)
#define MICROPY_READER_FATFS (MICROPY_VFS_FAT)
#define MICROPY_ENABLE_GC (1)
#define MICROPY_STACK_CHECK (1)
#define MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF (1)

83
extmod/vfs_fat_lexer.c
View File

@ -1,83 +0,0 @@
/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 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 "py/mpconfig.h"
// *_ADHOC part is for cc3200 port which doesn't use general uPy
// infrastructure and instead duplicates code. TODO: Resolve.
#if MICROPY_VFS_FAT || MICROPY_FSUSERMOUNT || MICROPY_FSUSERMOUNT_ADHOC
#include "py/lexer.h"
#include "lib/fatfs/ff.h"
typedef struct _mp_lexer_file_buf_t {
FIL fp;
byte buf[20];
uint16_t len;
uint16_t pos;
} mp_lexer_file_buf_t;
STATIC mp_uint_t file_buf_next_byte(mp_lexer_file_buf_t *fb) {
if (fb->pos >= fb->len) {
if (fb->len < sizeof(fb->buf)) {
return MP_LEXER_EOF;
} else {
UINT n;
f_read(&fb->fp, fb->buf, sizeof(fb->buf), &n);
if (n == 0) {
return MP_LEXER_EOF;
}
fb->len = n;
fb->pos = 0;
}
}
return fb->buf[fb->pos++];
}
STATIC void file_buf_close(mp_lexer_file_buf_t *fb) {
f_close(&fb->fp);
m_del_obj(mp_lexer_file_buf_t, fb);
}
mp_lexer_t *fat_vfs_lexer_new_from_file(const char *filename);
mp_lexer_t *fat_vfs_lexer_new_from_file(const char *filename) {
mp_lexer_file_buf_t *fb = m_new_obj_maybe(mp_lexer_file_buf_t);
if (fb == NULL) {
return NULL;
}
FRESULT res = f_open(&fb->fp, filename, FA_READ);
if (res != FR_OK) {
m_del_obj(mp_lexer_file_buf_t, fb);
return NULL;
}
UINT n;
f_read(&fb->fp, fb->buf, sizeof(fb->buf), &n);
fb->len = n;
fb->pos = 0;
return mp_lexer_new(qstr_from_str(filename), fb, (mp_lexer_stream_next_byte_t)file_buf_next_byte, (mp_lexer_stream_close_t)file_buf_close);
}
#endif // MICROPY_VFS_FAT

13
py/lexer.c
View File

@ -759,6 +759,19 @@ mp_lexer_t *mp_lexer_new_from_str_len(qstr src_name, const char *str, mp_uint_t
return mp_lexer_new(src_name, reader.data, (mp_lexer_stream_next_byte_t)reader.readbyte, (mp_lexer_stream_close_t)reader.close);
}
#if MICROPY_READER_POSIX || MICROPY_READER_FATFS
mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
mp_reader_t reader;
int ret = mp_reader_new_file(&reader, filename);
if (ret != 0) {
return NULL;
}
return mp_lexer_new(qstr_from_str(filename), reader.data, (mp_lexer_stream_next_byte_t)reader.readbyte, (mp_lexer_stream_close_t)reader.close);
}
#endif
void mp_lexer_free(mp_lexer_t *lex) {
if (lex) {
if (lex->stream_close) {

8
py/lexerunix.c
View File

@ -85,12 +85,4 @@ mp_lexer_t *mp_lexer_new_from_fd(qstr filename, int fd, bool close_fd) {
return mp_lexer_new(filename, fb, (mp_lexer_stream_next_byte_t)file_buf_next_byte, (mp_lexer_stream_close_t)file_buf_close);
}
mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
int fd = open(filename, O_RDONLY);
if (fd < 0) {
return NULL;
}
return mp_lexer_new_from_fd(qstr_from_str(filename), fd, true);
}
#endif // MICROPY_HELPER_LEXER_UNIX

1
py/py.mk
View File

@ -229,7 +229,6 @@ PY_O_BASENAME = \
../extmod/vfs_fat_diskio.o \
../extmod/vfs_fat_file.o \
../extmod/vfs_fat_reader.o \
../extmod/vfs_fat_lexer.o \
../extmod/vfs_fat_misc.o \
../extmod/utime_mphal.o \
../extmod/uos_dupterm.o \

1
stmhal/Makefile
View File

@ -154,7 +154,6 @@ SRC_C = \
modusocket.c \
modnetwork.c \
import.c \
lexerfatfs.c \
extint.c \
usrsw.c \
rng.c \

35
stmhal/lexerfatfs.c
View File

@ -1,35 +0,0 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 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 "py/lexer.h"
mp_lexer_t *fat_vfs_lexer_new_from_file(const char *filename);
// TODO: Instead of such shims, probably better to let port #define
// mp_lexer_new_from_file to a function it wants to use.
mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
return fat_vfs_lexer_new_from_file(filename);
}

15
teensy/lexerfatfs.c
View File

@ -1,15 +0,0 @@
#include <stdint.h>
#include <stdio.h>
#include "misc.h"
#include "mpconfig.h"
#include "qstr.h"
#include "lexer.h"
typedef int FIL;
#include "../stmhal/lexerfatfs.h"
mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
printf("import not implemented\n");
return NULL;
}