bjoernager/rust
bjoernager/rust
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Group unused import warnings per path list

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Given a file

```rust
use std::collections::{BinaryHeap, BTreeMap, BTreeSet};

fn main() {}
```

Show a single warning, instead of three for each unused import:

```nocode
warning: unused imports, #[warn(unused_imports)] on by default
 --> foo.rs:1:24
  |
1 | use std::collections::{BinaryHeap, BTreeMap, BTreeSet};
  |                        ^^^^^^^^^^  ^^^^^^^^  ^^^^^^^^
```

Include support for lints pointing at `MultilineSpan`s, instead of just
`Span`s.
This commit is contained in:
Esteban Küber 2016-10-25 23:24:09 -07:00
parent 0491a23177
commit a820d99eb2
7 changed files with 82 additions and 26 deletions
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6
src/libsyntax_pos/lib.rs
View file

@ -52,7 +52,7 @@ pub type FileName = String;
/// able to use many of the functions on spans in codemap and you cannot assume
/// that the length of the span = hi - lo; there may be space in the BytePos
/// range between files.
#[derive(Clone, Copy, Hash, PartialEq, Eq)]
#[derive(Clone, Copy, Hash, PartialEq, Eq, Ord, PartialOrd)]
pub struct Span {
pub lo: BytePos,
pub hi: BytePos,
@ -67,7 +67,7 @@ pub struct Span {
/// the error, and would be rendered with `^^^`.
/// - they can have a *label*. In this case, the label is written next
/// to the mark in the snippet when we render.
#[derive(Clone, Debug, PartialEq, Eq)]
#[derive(Clone, Debug, Hash, PartialEq, Eq)]
pub struct MultiSpan {
primary_spans: Vec<Span>,
span_labels: Vec<(Span, String)>,
@ -254,7 +254,7 @@ impl From<Span> for MultiSpan {
}
}
#[derive(PartialEq, Eq, Clone, Debug, Hash, RustcEncodable, RustcDecodable, Copy)]
#[derive(PartialEq, Eq, Clone, Debug, Hash, RustcEncodable, RustcDecodable, Copy, Ord, PartialOrd)]
pub struct ExpnId(pub u32);
pub const NO_EXPANSION: ExpnId = ExpnId(!0);