148     fn from_mdf(year: i32, mdf: Mdf) -> Option<NaiveDate> {  in from_mdf()
149         NaiveDate::from_of(year, mdf.to_of())  in from_mdf()
765     fn mdf(&self) -> Mdf {  in mdf()  method
779     fn with_mdf(&self, mdf: Mdf) -> Option<NaiveDate> {  in with_mdf()
780         self.with_of(mdf.to_of())  in with_mdf()
1132         self.mdf().month()  in month()
1149         self.mdf().month() - 1  in month0()
1189         self.mdf().day()  in day()
1206         self.mdf().day() - 1  in day0()
1310         let mdf = self.mdf();  in with_year()  localVariable
1314         let mdf = mdf.with_flags(flags);  in with_year()  localVariable
1316         NaiveDate::from_mdf(year, mdf)  in with_year()
1335         self.with_mdf(self.mdf().with_month(month))  in with_month()
1354         self.with_mdf(self.mdf().with_month(month0 + 1))  in with_month0()
1373         self.with_mdf(self.mdf().with_day(day))  in with_day()
1392         self.with_mdf(self.mdf().with_day(day0 + 1))  in with_day0()
1642         let mdf = self.mdf();  in fmt()  localVariable
1644             write!(f, "{:04}-{:02}-{:02}", year, mdf.month(), mdf.day())  in fmt()
1647             write!(f, "{:+05}-{:02}-{:02}", year, mdf.month(), mdf.day())  in fmt()