3dcd215740
This breaks code that referred to variant names in the same namespace as
their enum. Reexport the variants in the old location or alter code to
refer to the new locations:
```
pub enum Foo {
A,
B
}
fn main() {
let a = A;
}
```
=>
```
pub use self::Foo::{A, B};
pub enum Foo {
A,
B
}
fn main() {
let a = A;
}
```
or
```
pub enum Foo {
A,
B
}
fn main() {
let a = Foo::A;
}
```
[breaking-change]
40 lines
1.1 KiB
Rust
40 lines
1.1 KiB
Rust
// Copyright 2013 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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// Test that we are able to compile calls to associated fns like
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// `decode()` where the bound on the `Self` parameter references a
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// lifetime parameter of the trait. This example indicates why trait
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// lifetime parameters must be early bound in the type of the
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// associated item.
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pub enum Value<'v> {
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A(&'v str),
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B,
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}
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pub trait Decoder<'v> {
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fn read(&mut self) -> Value<'v>;
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}
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pub trait Decodable<'v, D: Decoder<'v>> {
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fn decode(d: &mut D) -> Self;
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}
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impl<'v, D: Decoder<'v>> Decodable<'v, D> for () {
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fn decode(d: &mut D) -> () {
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match d.read() {
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Value::A(..) => (),
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Value::B => Decodable::decode(d),
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}
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}
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}
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pub fn main() { }
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