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systemd/coccinelle/empty-to-null.cocci
Frantisek Sumsal 19615a650b coccinelle: skip the empty-to-null transformation on the macro itself
Since the empty_to_null() function was "macrofied", we need to use a bit
of black magic to make Coccinelle avoid running the transformation on
the macro itself.

Follow-up to ef2409cbde.
2023-01-25 11:35:06 +01:00

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/* SPDX-License-Identifier: LGPL-2.1-or-later */
@@
/* Avoid running this transformation on the empty_to_null macro itself.
* See the note in strempty.cocci to understand the weird magic below.
*/
position p : script:python() {
not (p[0].file == "src/basic/string-util.h" and p[0].current_element == "something_else")
};
expression s;
@@
- isempty@p(s) ? NULL : s
+ empty_to_null(s)