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Manish Goregaokar 2015-04-13 23:14:45 +05:30
parent 426a3ee1e7
commit 2756ebe056
1 changed files with 4 additions and 4 deletions
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8
src/types.rs
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@ -18,15 +18,15 @@ declare_lint!(pub LINKEDLIST, Warn,
/// Matches a type with a provided string, and returns its type parameters if successful /// Matches a type with a provided string, and returns its type parameters if successful
pub fn match_ty_unwrap<'a>(ty: &'a Ty, segments: &[&str]) -> Option<&'a [P<Ty>]> { pub fn match_ty_unwrap<'a>(ty: &'a Ty, segments: &[&str]) -> Option<&'a [P<Ty>]> {
match ty.node { match ty.node {
TyPath(Path {segments: ref seg, ..}, _) => { TyPath(_, Path {segments: ref seg, ..}) => {
// So ast::Path isn't the full path, just the tokens that were provided. // So ast::Path isn't the full path, just the tokens that were provided.
// I could muck around with the maps and find the full path // I could muck around with the maps and find the full path
// however the more efficient way is to simply reverse the iterators and zip them // however the more efficient way is to simply reverse the iterators and zip them
// which will compare them in reverse until one of them runs out of segments // which will compare them in reverse until one of them runs out of segments
if seg.iter().rev().zip(segments.iter().rev()).all(|(a,b)| a.identifier.as_str() == *b) { if seg.iter().rev().zip(segments.iter().rev()).all(|(a,b)| a.identifier.as_str() == *b) {
match seg.as_slice().last() { match seg[..].last() {
Some(&PathSegment {parameters: AngleBracketedParameters(ref a), ..}) => { Some(&PathSegment {parameters: AngleBracketedParameters(ref a), ..}) => {
Some(a.types.as_slice()) Some(&a.types[..])
} }
_ => None _ => None
} }
@ -74,7 +74,7 @@ impl LintPass for TypePass {
vec!["std","collections","linked_list","LinkedList"], vec!["std","collections","linked_list","LinkedList"],
vec!["collections","linked_list","LinkedList"]]; vec!["collections","linked_list","LinkedList"]];
for path in dlists.iter() { for path in dlists.iter() {
if match_ty_unwrap(ty, path.as_slice()).is_some() { if match_ty_unwrap(ty, &path[..]).is_some() {
span_note_and_lint(cx, LINKEDLIST, ty.span, span_note_and_lint(cx, LINKEDLIST, ty.span,
"I see you're using a LinkedList! Perhaps you meant some other data structure?", "I see you're using a LinkedList! Perhaps you meant some other data structure?",
"A RingBuf might work."); "A RingBuf might work.");