43 lines
2.0 KiB
Rust
43 lines
2.0 KiB
Rust
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// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// compile-pass
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// Bastion of the Turbofish
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// ------------------------
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// Beware travellers, lest you venture into waters callous and unforgiving,
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// where hope must be abandoned, ere it is cruelly torn from you. For here
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// stands the bastion of the Turbofish: an impenetrable fortress holding
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// unshaking against those who would dare suggest the supererogation of the
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// Turbofish.
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//
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// Once I was young and foolish and had the impudence to imagine that I could
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// shake free from the coils by which that creature had us tightly bound. I
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// dared to suggest that there was a better way: a brighter future, in which
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// Rustaceans both new and old could be rid of that vile beast. But alas! In
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// my foolhardiness my ignorance was unveiled and my dreams were dashed
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// unforgivingly against the rock of syntactic ambiguity.
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//
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// This humble program, small and insignificant though it might seem,
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// demonstrates that to which we had previously cast a blind eye: an ambiguity
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// in permitting generic arguments to be provided without the consent of the
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// Great Turbofish. Should you be so naïve as to try to revolt against its
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// mighty clutches, here shall its wrath be indomitably displayed. This
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// program must pass for all eternity, fundamentally at odds with an impetuous
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// rebellion against the Turbofish.
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//
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// My heart aches in sorrow, for I know I am defeated. Let this be a warning
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// to all those who come after. Here stands the bastion of the Turbofish.
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fn main() {
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let (oh, woe, is, me) = ("the", "Turbofish", "remains", "undefeated");
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let _: (bool, bool) = (oh<woe, is>(me));
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}
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