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py/objstr: Optimise mp_obj_new_str_from_vstr for known-safe strings.

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The new `mp_obj_new_str_from_utf8_vstr` can be used when you know you
already have a unicode-safe string.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
This commit is contained in:
Jim Mussared
2022-08-23 18:35:37 +10:00
committed by Damien George
parent 88864587f5
commit 3a910b1565
8 changed files with 19 additions and 7 deletions
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5
py/obj.h
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@@ -792,6 +792,11 @@ mp_obj_t mp_obj_new_int_from_ull(unsigned long long val); // this must return a
mp_obj_t mp_obj_new_str(const char *data, size_t len);
mp_obj_t mp_obj_new_str_via_qstr(const char *data, size_t len);
mp_obj_t mp_obj_new_str_from_vstr(vstr_t *vstr);
#if MICROPY_PY_BUILTINS_STR_UNICODE && MICROPY_PY_BUILTINS_STR_UNICODE_CHECK
mp_obj_t mp_obj_new_str_from_utf8_vstr(vstr_t *vstr); // only use when vstr is already known to be utf-8 encoded
#else
#define mp_obj_new_str_from_utf8_vstr mp_obj_new_str_from_vstr
#endif
mp_obj_t mp_obj_new_bytes_from_vstr(vstr_t *vstr);
mp_obj_t mp_obj_new_bytes(const byte *data, size_t len);
mp_obj_t mp_obj_new_bytearray(size_t n, const void *items);