rust/src/test/compile-fail/double-import.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

28 lines
953 B
Rust

// Copyright 2015 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.
// This tests that conflicting imports shows both `use` lines
// when reporting the error.
mod sub1 {
pub fn foo() {} // implementation 1
}
mod sub2 {
pub fn foo() {} // implementation 2
}
use sub1::foo; //~ NOTE previous import of the value `foo` here
use sub2::foo; //~ ERROR the name `foo` is defined multiple times
//~| NOTE `foo` reimported here
//~| NOTE `foo` must be defined only once in the value namespace of this module
fn main() {}