dbf994bbaf
associated machinery. Future such attempts should go through lints anyhow. There is a fair amount of fallout in the compile-fail tests, as WF checking now occurs earlier in the process.
26 lines
755 B
Rust
26 lines
755 B
Rust
// Copyright 2015 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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trait From<Src> {
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type Result;
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fn from(src: Src) -> Self::Result;
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}
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trait To {
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fn to<Dst>( //~ ERROR the trait `core::marker::Sized` is not implemented
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self
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) -> <Dst as From<Self>>::Result where Dst: From<Self> {
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From::from(self)
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}
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}
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fn main() {}
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