6     fn call_once(self, arg: A) -> Self::Output;  in call_once()  method
14     fn call_once(self, arg: A) -> R {  in call_once()  function
60                 self.call_once(arg)
65                 self.call_once(arg)
84     fn call_once(self, arg: A) -> Self::Output {  in call_once()  method
100     fn call_once(self, arg: A) -> Self::Output {  in call_once()  function
101         self.1.call_once(self.0.call_once(arg))  in call_once()
131     fn call_once(self, arg: Result<T, T>) -> Self::Output {  in call_once()  method
149     fn call_once(self, arg: A) -> Self::Output {  in call_once()  function
150         self.0.call_once(&arg);  in call_once()
186     fn call_once(self, arg: Result<T, E>) -> Self::Output {  in call_once()  function
187         arg.map(|x| self.0.call_once(x))  in call_once()
218     fn call_once(self, arg: Result<T, E>) -> Self::Output {  in call_once()  function
219         arg.map_err(|x| self.0.call_once(x))  in call_once()
250     fn call_once(self, arg: &'a Result<T, E>) -> Self::Output {  in call_once()  function
251         if let Ok(x) = arg { self.0.call_once(x) }  in call_once()
282     fn call_once(self, arg: &'a Result<T, E>) -> Self::Output {  in call_once()  function
283         if let Err(x) = arg { self.0.call_once(x) }  in call_once()
319     fn call_once(self, arg: Result<T, E>) -> Self::Output {  in call_once()  function
320         arg.unwrap_or_else(|x| self.0.call_once(x))  in call_once()
352     fn call_once(self, arg: A) -> Self::Output {  in call_once()  function