================
@@ -1073,18 +1073,79 @@ bool
lldb_private::formatters::LibcxxWStringViewSummaryProvider(
bool success;
ValueObjectSP dataobj;
size_t size;
- std::tie( success, dataobj, size ) = LibcxxExtractStringViewData(valobj);
+ std::tie(success, dataobj, size) = LibcxxExtractStringViewData(valobj);
if (!success) {
stream << "Summary Unavailable";
return true;
}
-
return ::LibcxxWStringSummaryProvider(valobj, stream, summary_options,
dataobj, size);
}
+bool lldb_private::formatters::LibcxxChronoSysSecondsSummaryProvider(
+ ValueObject &valobj, Stream &stream, const TypeSummaryOptions &options) {
+ ValueObjectSP ptr_sp = valobj.GetChildMemberWithName("__d_");
+ if (!ptr_sp)
+ return false;
+ ptr_sp = ptr_sp->GetChildMemberWithName("__rep_");
+ if (!ptr_sp)
+ return false;
+
+ // The date time in the chrono library is valid in the range
+ // [-32767-01-01T00:00:00Z, 32767-12-31T23:59:59Z]. A 64-bit time_t has a
+ // larger range, the function strftime is not able to format the entire range
+ // of time_t. The exact point has not been investigated; it's limited to
+ // chrono's range.
+ const std::time_t chrono_timestamp_min =
+ -1'096'193'779'200; // -32767-01-01T00:00:00Z
+ const std::time_t chrono_timestamp_max =
+ 971'890'963'199; // 32767-12-31T23:59:59Z
+
+ const std::time_t seconds = ptr_sp->GetValueAsSigned(0);
+ if (seconds < chrono_timestamp_min || seconds > chrono_timestamp_max)
+ stream.Printf("timestamp=%ld s", seconds);
+ else {
+ std::array<char, 128> str;
+ std::strftime(str.data(), str.size(), "%FT%H:%M:%SZ", gmtime(&seconds));
+ stream.Printf("date/time=%s timestamp=%ld s", str.data(), seconds);
+ }
+
+ return true;
+}
+
+bool lldb_private::formatters::LibcxxChronoSysDaysSummaryProvider(
+ ValueObject &valobj, Stream &stream, const TypeSummaryOptions &options) {
+ ValueObjectSP ptr_sp = valobj.GetChildMemberWithName("__d_");
+ if (!ptr_sp)
+ return false;
+ ptr_sp = ptr_sp->GetChildMemberWithName("__rep_");
+ if (!ptr_sp)
+ return false;
+
+ // The date time in the chrono library is valid in the range
+ // [-32767-01-01Z, 32767-12-31Z]. A 32-bit time_t has a larger range, the
+ // function strftime is not able to format the entire range of time_t. The
+ // exact point has not been investigated; it's limited to chrono's range.
+ const int chrono_timestamp_min = -12'687'428; // -32767-01-01Z
+ const int chrono_timestamp_max = 11'248'737; // 32767-12-31Z
+
+ const int days = ptr_sp->GetValueAsSigned(0);
+ if (days < chrono_timestamp_min || days > chrono_timestamp_max)
+ stream.Printf("timestamp=%d days", days);
+
+ else {
+ const std::time_t seconds = std::time_t(86400) * days;
+
+ std::array<char, 128> str;
+ std::strftime(str.data(), str.size(), "%FZ", gmtime(&seconds));
----------------
Michael137 wrote:
is it worth checking the return of `strftime` here?
https://github.com/llvm/llvm-project/pull/78609
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