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py/modio: Remove FileIO and TextIOWrapper from io module.

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On ports with more than one filesystem, the type will be wrong, for example
if using LFS but FAT enabled, then the type will be FAT.  So it's not
possible to use these classes to identify a file object type.

Furthermore, constructing an io.FileIO currently crashes on FAT, and
make_new isn't supported on LFS.

And the io.TextIOWrapper class does not match CPython at all.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
This commit is contained in:
Jim Mussared
2022-07-22 13:53:13 +10:00
committed by Damien George
parent c0fa903d6b
commit e65d1e69e8
6 changed files with 69 additions and 116 deletions
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9
py/modio.c
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@@ -37,9 +37,6 @@
#if MICROPY_PY_IO
extern const mp_obj_type_t mp_type_fileio;
extern const mp_obj_type_t mp_type_textio;
#if MICROPY_PY_IO_IOBASE
STATIC const mp_obj_type_t mp_type_iobase;
@@ -211,12 +208,6 @@ STATIC const mp_rom_map_elem_t mp_module_io_globals_table[] = {
#if MICROPY_PY_IO_IOBASE
{ MP_ROM_QSTR(MP_QSTR_IOBase), MP_ROM_PTR(&mp_type_iobase) },
#endif
#if MICROPY_PY_IO_FILEIO
{ MP_ROM_QSTR(MP_QSTR_FileIO), MP_ROM_PTR(&mp_type_fileio) },
#if MICROPY_CPYTHON_COMPAT
{ MP_ROM_QSTR(MP_QSTR_TextIOWrapper), MP_ROM_PTR(&mp_type_textio) },
#endif
#endif
{ MP_ROM_QSTR(MP_QSTR_StringIO), MP_ROM_PTR(&mp_type_stringio) },
#if MICROPY_PY_IO_BYTESIO
{ MP_ROM_QSTR(MP_QSTR_BytesIO), MP_ROM_PTR(&mp_type_bytesio) },