user0/rust
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Add a lint to warn about call to .*or(foo(..))

Browse source
This commit is contained in:
mcarton 2016-01-16 18:47:45 +01:00
parent 604be945d2
commit c6604bb281
5 changed files with 90 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/utils.rs
View file

@ -244,7 +244,7 @@ pub fn is_from_for_desugar(decl: &Decl) -> bool {
/// snippet(cx, expr.span, "..")
/// ```
pub fn snippet<'a, T: LintContext>(cx: &T, span: Span, default: &'a str) -> Cow<'a, str> {
cx.sess().codemap().span_to_snippet(span).map(From::from).unwrap_or(Cow::Borrowed(default))
cx.sess().codemap().span_to_snippet(span).map(From::from).unwrap_or_else(|_| Cow::Borrowed(default))
}
/// Convert a span to a code snippet. Returns `None` if not available.