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libutil: Change return value of addTrace to void

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The return value of BaseError::addTrace(...) is never used and
error-prone as subclasses calling it will return a BaseError instead of
the subclass.
This commit changes its return value to be void.
This commit is contained in:
Daniel Pauls 2022-03-30 17:30:47 +02:00
parent fa83b865a2
commit 629edd43ba
2 changed files with 4 additions and 5 deletions
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3
src/libutil/error.cc
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@ -9,10 +9,9 @@ namespace nix {
const std::string nativeSystem = SYSTEM;
BaseError & BaseError::addTrace(std::optional<ErrPos> e, hintformat hint)
void BaseError::addTrace(std::optional<ErrPos> e, hintformat hint)
{
err.traces.push_front(Trace { .pos = e, .hint = hint });
return *this;
}
// c++ std::exception descendants must have a 'const char* what()' function.