func withExtendedLifetime<T, Result>(_: T, f: @noescape () -> Result)
Evaluate f() and return its result, ensuring that x is not
destroyed before f returns.
Declaration
funcwithExtendedLifetime<T,Result>(x:T,f: @noescape() ->Result) ->Result
Evaluate
f(x)and return its result, ensuring thatxis not destroyed before f returns.Declaration
funcwithExtendedLifetime<T,Result>(x:T,f: @noescapeT->Result) ->Result