llvm/llvm-project
[clang-tidy] Add `readability-use-rethrow` check
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#189.672 geöffnet am 31.03.2026
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Beschreibung
It would be useful to have a clang-tidy check that detects cases where code is clearly trying to rethrow the currently handled exception, but spells it as throw e; instead of throw;.
For example, code like this is easy to write:
try {
f();
} catch (const std::exception &e) {
log(e.what());
throw e;
}
but if the intent is to rethrow the active exception, the clearer spelling is:
try {
f();
} catch (const std::exception &e) {
log(e.what());
throw;
}
The latter expresses the intent directly and avoids the impression that the code is deliberately throwing the caught object as a new exception expression.