Add __attribute__((const, pure, format)) in various places

I'm assuming that it's fine if a _const_ or _pure_ function
calls assert. It is assumed that the assert won't trigger,
and even if it does, it can only trigger on the first call
with a given set of parameters, and we don't care if the
compiler moves the order of calls.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/core/swap.c b/src/core/swap.c
index e7cc19596e..d503fe20df 100644
--- a/src/core/swap.c
+++ b/src/core/swap.c
@@ -899,19 +899,19 @@ static int swap_deserialize_item(Unit *u, const char *key, const char *value, FD
         return 0;
 }
 
-static UnitActiveState swap_active_state(Unit *u) {
+_pure_ static UnitActiveState swap_active_state(Unit *u) {
         assert(u);
 
         return state_translation_table[SWAP(u)->state];
 }
 
-static const char *swap_sub_state_to_string(Unit *u) {
+_pure_ static const char *swap_sub_state_to_string(Unit *u) {
         assert(u);
 
         return swap_state_to_string(SWAP(u)->state);
 }
 
-static bool swap_check_gc(Unit *u) {
+_pure_ static bool swap_check_gc(Unit *u) {
         Swap *s = SWAP(u);
 
         assert(s);