1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
.. title:: clang-tidy - misc-unused-raii
misc-unused-raii
================
Finds temporaries that look like RAII objects.
The canonical example for this is a scoped lock.
.. code-block:: c++
{
scoped_lock(&global_mutex);
critical_section();
}
The destructor of the scoped_lock is called before the ``critical_section`` is
entered, leaving it unprotected.
We apply a number of heuristics to reduce the false positive count of this
check:
- Ignore code expanded from macros. Testing frameworks make heavy use of this.
- Ignore types with trivial destructors. They are very unlikely to be RAII
objects and there's no difference when they are deleted.
- Ignore objects at the end of a compound statement (doesn't change behavior).
- Ignore objects returned from a call.
|
