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

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).

1 files changed, 2 insertions, 1 deletions

diff --git a/py/obj.h b/py/obj.h
index 77f0f2298..31c3ce95c 100644
--- a/py/obj.h
+++ b/py/obj.h
@@ -637,7 +637,8 @@ mp_obj_t mp_obj_new_int_from_uint(mp_uint_t value);
 mp_obj_t mp_obj_new_int_from_str_len(const char **str, size_t len, bool neg, unsigned int base);
 mp_obj_t mp_obj_new_int_from_ll(long long val); // this must return a multi-precision integer object (or raise an overflow exception)
 mp_obj_t mp_obj_new_int_from_ull(unsigned long long val); // this must return a multi-precision integer object (or raise an overflow exception)
-mp_obj_t mp_obj_new_str(const char* data, size_t len, bool make_qstr_if_not_already);
+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(const mp_obj_type_t *type, 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, void *items);