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py/objstr: Remove "make_qstr_if_not_already" arg from mp_obj_new_str.

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This patch simplifies the str creation API to favour the common case of
creating a str object that is not forced to be interned.  To force
interning of a new str the new mp_obj_new_str_via_qstr function is added,
and should only be used if warranted.

Apart from simplifying the mp_obj_new_str function (and making it have the
same signature as mp_obj_new_bytes), this patch also reduces code size by a
bit (-16 bytes for bare-arm and roughly -40 bytes on the bare-metal archs).
This commit is contained in:
Damien George
2017-11-16 13:17:51 +11:00
parent 6bc55b657b
commit 4601759bf5
24 changed files with 55 additions and 54 deletions
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4
py/objstrunicode.c
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@@ -216,7 +216,7 @@ STATIC mp_obj_t str_subscr(mp_obj_t self_in, mp_obj_t index, mp_obj_t value) {
++len;
}
}
return mp_obj_new_str((const char*)s, len, true); // This will create a one-character string
return mp_obj_new_str_via_qstr((const char*)s, len); // This will create a one-character string
} else {
return MP_OBJ_NULL; // op not supported
}
@@ -291,7 +291,7 @@ STATIC mp_obj_t str_it_iternext(mp_obj_t self_in) {
if (self->cur < len) {
const byte *cur = str + self->cur;
const byte *end = utf8_next_char(str + self->cur);
mp_obj_t o_out = mp_obj_new_str((const char*)cur, end - cur, true);
mp_obj_t o_out = mp_obj_new_str_via_qstr((const char*)cur, end - cur);
self->cur += end - cur;
return o_out;
} else {