rust/src/test/compile-fail/issue-19498.rs
Alex Ozdemir a82890e67b Clearer Error Message for Duplicate Definition
Clearer use of the error message and span labels to communicate
duplicaiton defitions/imports.

New error format:

```
error[E0428]: the name `Foo` is defined twice
 --> example.rs:2:1
  |
1 | trait Foo { }
  | ------------- previous definition of the trait `Foo` here
2 | struct Foo { }
  | ^^^^^^^^^^^^^^ `Foo` redefined here
  = note: `Foo` must be defined only once in the type namespace of this module

error: aborting due to previous error
```
2017-06-15 08:21:17 -07:00

27 lines
1.1 KiB
Rust

// Copyright 2013 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
use self::A; //~ NOTE previous import of the module `A` here
use self::B; //~ NOTE previous import of the module `B` here
mod A {} //~ ERROR the name `A` is defined multiple times
//~| `A` redefined here
//~| NOTE `A` must be defined only once in the type namespace of this module
pub mod B {} //~ ERROR the name `B` is defined multiple times
//~| `B` redefined here
//~| NOTE `B` must be defined only once in the type namespace of this module
mod C {
use C::D; //~ NOTE previous import of the module `D` here
mod D {} //~ ERROR the name `D` is defined multiple times
//~| `D` redefined here
//~| NOTE `D` must be defined only once in the type namespace of this module
}
fn main() {}