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Add clang lifetimebound section to developer notes

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Jon Atack 2022-05-10 16:29:15 +02:00
parent e66b321fd1
commit 654284209f
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doc/developer-notes.md
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@ -32,6 +32,7 @@ Developer Notes
- [C++ data structures](#c-data-structures)
- [Strings and formatting](#strings-and-formatting)
- [Shadowing](#shadowing)
- [Lifetimebound](#lifetimebound)
- [Threads and synchronization](#threads-and-synchronization)
- [Scripts](#scripts)
- [Shebang](#shebang)
@ -885,6 +886,16 @@ please name variables so that their names do not shadow variables defined in the
When using nested cycles, do not name the inner cycle variable the same as in
the outer cycle, etc.
Lifetimebound
--------------
The [Clang `lifetimebound`
attribute](https://clang.llvm.org/docs/AttributeReference.html#lifetimebound)
can be used to tell the compiler that a lifetime is bound to an object and
potentially see a compile-time warning if the object has a shorter lifetime from
the invalid use of a temporary. You can use the attribute by adding a `LIFETIMEBOUND`
annotation defined in `src/attributes.h`; please grep the codebase for examples.
Threads and synchronization
----------------------------