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mu-error: allow for adding end-user hints

This commit is contained in:
Dirk-Jan C. Binnema 2023-09-16 11:01:51 +03:00
parent 2475b02b89
commit 3123f3e983
1 changed files with 22 additions and 2 deletions
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24
lib/utils/mu-error.hh
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@ -137,7 +137,7 @@ struct Error final : public std::exception {
* @return true or false
*/
constexpr bool is_soft_error() const {
return (static_cast<uint32_t>(code_) & SoftError) != 0;
return !!((static_cast<uint32_t>(code_)>>24) & SoftError);
}
constexpr uint8_t exit_code() const {
@ -154,6 +154,26 @@ struct Error final : public std::exception {
"%s", what_.c_str());
}
/**
* Add an end-user hint
*
* @param args... libfmt-style format string and parameters
*
* @return the error
*/
template<typename...T>
Error& add_hint(fmt::format_string<T...> frm, T&&... args) {
hint_ = fmt::format(frm, std::forward<T>(args)...);
return *this;
}
/**
* Get the hint
*
* @return the hint, empty for no hint.
*/
const std::string& hint() const { return hint_; }
private:
static inline GQuark error_quark (void) {
static GQuark error_domain = 0;
@ -164,9 +184,9 @@ private:
const Code code_;
const std::string what_;
std::string hint_;
};
static inline auto
format_as(const Error& err) {
return mu_format("<{} ({})>", err.what(), Error::error_number(err.code()));