py: Slightly improve efficiency of mp_obj_new_str; rename str_new.
Reorder interning logic in mp_obj_new_str, to be more efficient. str_new is globally accessible, so should be prefixed with mp_obj_.
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2617eebf2f
commit
f600a6a085
45
py/objstr.c
45
py/objstr.c
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@ -54,7 +54,6 @@ const mp_obj_t mp_const_empty_bytes;
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STATIC mp_obj_t mp_obj_new_str_iterator(mp_obj_t str);
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STATIC mp_obj_t mp_obj_new_bytes_iterator(mp_obj_t str);
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mp_obj_t str_new(const mp_obj_type_t *type, const byte* data, uint len);
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STATIC NORETURN void bad_implicit_conversion(mp_obj_t self_in);
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STATIC NORETURN void arg_type_mixup();
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@ -143,7 +142,7 @@ STATIC mp_obj_t str_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_
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}
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GET_STR_DATA_LEN(args[0], str_data, str_len);
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GET_STR_HASH(args[0], str_hash);
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mp_obj_str_t *o = str_new(&mp_type_str, NULL, str_len);
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mp_obj_str_t *o = mp_obj_new_str_of_type(&mp_type_str, NULL, str_len);
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o->data = str_data;
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o->hash = str_hash;
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return o;
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@ -171,7 +170,7 @@ STATIC mp_obj_t bytes_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const m
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}
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GET_STR_DATA_LEN(args[0], str_data, str_len);
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GET_STR_HASH(args[0], str_hash);
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mp_obj_str_t *o = str_new(&mp_type_bytes, NULL, str_len);
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mp_obj_str_t *o = mp_obj_new_str_of_type(&mp_type_bytes, NULL, str_len);
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o->data = str_data;
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o->hash = str_hash;
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return o;
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@ -356,7 +355,7 @@ STATIC mp_obj_t str_subscr(mp_obj_t self_in, mp_obj_t index, mp_obj_t value) {
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nlr_raise(mp_obj_new_exception_msg(&mp_type_NotImplementedError,
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"Only slices with step=1 (aka None) are supported"));
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}
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return str_new(type, self_data + slice.start, slice.stop - slice.start);
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return mp_obj_new_str_of_type(type, self_data + slice.start, slice.stop - slice.start);
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}
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#endif
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uint index_val = mp_get_index(type, self_len, index, false);
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@ -447,7 +446,7 @@ STATIC mp_obj_t str_split(uint n_args, const mp_obj_t *args) {
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while (s < top && splits != 0) {
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const byte *start = s;
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while (s < top && !is_ws(*s)) s++;
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mp_obj_list_append(res, str_new(self_type, start, s - start));
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mp_obj_list_append(res, mp_obj_new_str_of_type(self_type, start, s - start));
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if (s >= top) {
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break;
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}
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@ -458,7 +457,7 @@ STATIC mp_obj_t str_split(uint n_args, const mp_obj_t *args) {
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}
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if (s < top) {
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mp_obj_list_append(res, str_new(self_type, s, top - s));
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mp_obj_list_append(res, mp_obj_new_str_of_type(self_type, s, top - s));
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}
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} else {
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@ -482,7 +481,7 @@ STATIC mp_obj_t str_split(uint n_args, const mp_obj_t *args) {
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}
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s++;
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}
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mp_obj_list_append(res, str_new(self_type, start, s - start));
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mp_obj_list_append(res, mp_obj_new_str_of_type(self_type, start, s - start));
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if (s >= top) {
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break;
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}
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@ -537,10 +536,10 @@ STATIC mp_obj_t str_rsplit(uint n_args, const mp_obj_t *args) {
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s--;
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}
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if (s < beg || splits == 0) {
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res->items[idx] = str_new(self_type, beg, last - beg);
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res->items[idx] = mp_obj_new_str_of_type(self_type, beg, last - beg);
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break;
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}
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res->items[idx--] = str_new(self_type, s + sep_len, last - s - sep_len);
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res->items[idx--] = mp_obj_new_str_of_type(self_type, s + sep_len, last - s - sep_len);
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last = s;
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if (splits > 0) {
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splits--;
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@ -692,7 +691,7 @@ STATIC mp_obj_t str_uni_strip(int type, uint n_args, const mp_obj_t *args) {
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assert(last_good_char_pos >= first_good_char_pos);
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//+1 to accomodate the last character
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machine_uint_t stripped_len = last_good_char_pos - first_good_char_pos + 1;
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return str_new(self_type, orig_str + first_good_char_pos, stripped_len);
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return mp_obj_new_str_of_type(self_type, orig_str + first_good_char_pos, stripped_len);
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}
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STATIC mp_obj_t str_strip(uint n_args, const mp_obj_t *args) {
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@ -1455,9 +1454,9 @@ STATIC mp_obj_t str_partitioner(mp_obj_t self_in, mp_obj_t arg, machine_int_t di
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const byte *position_ptr = find_subbytes(str, str_len, sep, sep_len, direction);
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if (position_ptr != NULL) {
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machine_uint_t position = position_ptr - str;
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result[0] = str_new(self_type, str, position);
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result[0] = mp_obj_new_str_of_type(self_type, str, position);
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result[1] = arg;
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result[2] = str_new(self_type, str + position + sep_len, str_len - position - sep_len);
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result[2] = mp_obj_new_str_of_type(self_type, str + position + sep_len, str_len - position - sep_len);
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}
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return mp_obj_new_tuple(3, result);
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@ -1641,7 +1640,7 @@ mp_obj_t mp_obj_str_builder_end(mp_obj_t o_in) {
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return o;
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}
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mp_obj_t str_new(const mp_obj_type_t *type, const byte* data, uint len) {
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mp_obj_t mp_obj_new_str_of_type(const mp_obj_type_t *type, const byte* data, uint len) {
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mp_obj_str_t *o = m_new_obj(mp_obj_str_t);
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o->base.type = type;
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o->len = len;
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@ -1656,21 +1655,23 @@ mp_obj_t str_new(const mp_obj_type_t *type, const byte* data, uint len) {
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}
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mp_obj_t mp_obj_new_str(const char* data, uint len, bool make_qstr_if_not_already) {
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qstr q = qstr_find_strn(data, len);
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if (q != MP_QSTR_NULL) {
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// qstr with this data already exists
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return MP_OBJ_NEW_QSTR(q);
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} else if (make_qstr_if_not_already) {
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// no existing qstr, make a new one
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if (make_qstr_if_not_already) {
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// use existing, or make a new qstr
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return MP_OBJ_NEW_QSTR(qstr_from_strn(data, len));
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} else {
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// no existing qstr, don't make one
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return str_new(&mp_type_str, (const byte*)data, len);
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qstr q = qstr_find_strn(data, len);
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if (q != MP_QSTR_NULL) {
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// qstr with this data already exists
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return MP_OBJ_NEW_QSTR(q);
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} else {
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// no existing qstr, don't make one
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return mp_obj_new_str_of_type(&mp_type_str, (const byte*)data, len);
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}
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}
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}
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mp_obj_t mp_obj_new_bytes(const byte* data, uint len) {
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return str_new(&mp_type_bytes, data, len);
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return mp_obj_new_str_of_type(&mp_type_bytes, data, len);
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}
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bool mp_obj_str_equal(mp_obj_t s1, mp_obj_t s2) {
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@ -36,4 +36,4 @@ typedef struct _mp_obj_str_t {
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#define MP_DEFINE_STR_OBJ(obj_name, str) mp_obj_str_t obj_name = {{&mp_type_str}, 0, sizeof(str) - 1, (const byte*)str};
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mp_obj_t mp_obj_str_format(uint n_args, const mp_obj_t *args);
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mp_obj_t str_new(const mp_obj_type_t *type, const byte* data, uint len);
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mp_obj_t mp_obj_new_str_of_type(const mp_obj_type_t *type, const byte* data, uint len);
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@ -83,7 +83,7 @@ STATIC machine_int_t stringio_write(mp_obj_t o_in, const void *buf, machine_uint
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STATIC mp_obj_t stringio_getvalue(mp_obj_t self_in) {
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mp_obj_stringio_t *self = self_in;
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return str_new(STREAM_TO_CONTENT_TYPE(self), (byte*)self->vstr->buf, self->vstr->len);
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return mp_obj_new_str_of_type(STREAM_TO_CONTENT_TYPE(self), (byte*)self->vstr->buf, self->vstr->len);
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(stringio_getvalue_obj, stringio_getvalue);
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@ -81,7 +81,7 @@ STATIC mp_obj_t stream_read(uint n_args, const mp_obj_t *args) {
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}
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError, "[Errno %d]", error));
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} else {
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mp_obj_t s = str_new(STREAM_CONTENT_TYPE(o->type->stream_p), buf, out_sz); // will reallocate to use exact size
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mp_obj_t s = mp_obj_new_str_of_type(STREAM_CONTENT_TYPE(o->type->stream_p), buf, out_sz); // will reallocate to use exact size
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m_free(buf, sz);
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return s;
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}
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@ -158,7 +158,7 @@ STATIC mp_obj_t stream_readall(mp_obj_t self_in) {
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}
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}
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mp_obj_t s = str_new(STREAM_CONTENT_TYPE(o->type->stream_p), (byte*)vstr->buf, total_size);
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mp_obj_t s = mp_obj_new_str_of_type(STREAM_CONTENT_TYPE(o->type->stream_p), (byte*)vstr->buf, total_size);
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vstr_free(vstr);
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return s;
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}
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@ -207,7 +207,7 @@ STATIC mp_obj_t stream_unbuffered_readline(uint n_args, const mp_obj_t *args) {
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}
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}
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// TODO need a string creation API that doesn't copy the given data
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mp_obj_t ret = str_new(STREAM_CONTENT_TYPE(o->type->stream_p), (byte*)vstr->buf, vstr->len);
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mp_obj_t ret = mp_obj_new_str_of_type(STREAM_CONTENT_TYPE(o->type->stream_p), (byte*)vstr->buf, vstr->len);
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vstr_free(vstr);
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return ret;
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}
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