| // build-pass (FIXME(62277): could be check-pass?) |
| |
| // Bastion of the Turbofish |
| // ------------------------ |
| // Beware travellers, lest you venture into waters callous and unforgiving, |
| // where hope must be abandoned, ere it is cruelly torn from you. For here |
| // stands the bastion of the Turbofish: an impenetrable fortress holding |
| // unshaking against those who would dare suggest the supererogation of the |
| // Turbofish. |
| // |
| // Once I was young and foolish and had the impudence to imagine that I could |
| // shake free from the coils by which that creature had us tightly bound. I |
| // dared to suggest that there was a better way: a brighter future, in which |
| // Rustaceans both new and old could be rid of that vile beast. But alas! In |
| // my foolhardiness my ignorance was unveiled and my dreams were dashed |
| // unforgivingly against the rock of syntactic ambiguity. |
| // |
| // This humble program, small and insignificant though it might seem, |
| // demonstrates that to which we had previously cast a blind eye: an ambiguity |
| // in permitting generic arguments to be provided without the consent of the |
| // Great Turbofish. Should you be so naïve as to try to revolt against its |
| // mighty clutches, here shall its wrath be indomitably displayed. This |
| // program must pass for all eternity, fundamentally at odds with an impetuous |
| // rebellion against the Turbofish. |
| // |
| // My heart aches in sorrow, for I know I am defeated. Let this be a warning |
| // to all those who come after. Here stands the bastion of the Turbofish. |
| |
| // See https://github.com/rust-lang/rust/pull/53562 |
| // and https://github.com/rust-lang/rfcs/pull/2527 |
| // for context. |
| |
| fn main() { |
| let (oh, woe, is, me) = ("the", "Turbofish", "remains", "undefeated"); |
| let _: (bool, bool) = (oh<woe, is>(me)); |
| } |
