diff options
Diffstat (limited to 'clippy_lints/src/bytecount.rs')
| -rw-r--r-- | clippy_lints/src/bytecount.rs | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/clippy_lints/src/bytecount.rs b/clippy_lints/src/bytecount.rs index b677ef71583..9fd82ae5946 100644 --- a/clippy_lints/src/bytecount.rs +++ b/clippy_lints/src/bytecount.rs @@ -10,22 +10,22 @@ use rustc::{declare_tool_lint, lint_array}; use rustc_errors::Applicability; use syntax::ast::{Name, UintTy}; -/// **What it does:** Checks for naive byte counts -/// -/// **Why is this bad?** The [`bytecount`](https://crates.io/crates/bytecount) -/// crate has methods to count your bytes faster, especially for large slices. -/// -/// **Known problems:** If you have predominantly small slices, the -/// `bytecount::count(..)` method may actually be slower. However, if you can -/// ensure that less than 2³²-1 matches arise, the `naive_count_32(..)` can be -/// faster in those cases. -/// -/// **Example:** -/// -/// ```rust -/// &my_data.filter(|&x| x == 0u8).count() // use bytecount::count instead -/// ``` declare_clippy_lint! { + /// **What it does:** Checks for naive byte counts + /// + /// **Why is this bad?** The [`bytecount`](https://crates.io/crates/bytecount) + /// crate has methods to count your bytes faster, especially for large slices. + /// + /// **Known problems:** If you have predominantly small slices, the + /// `bytecount::count(..)` method may actually be slower. However, if you can + /// ensure that less than 2³²-1 matches arise, the `naive_count_32(..)` can be + /// faster in those cases. + /// + /// **Example:** + /// + /// ```rust + /// &my_data.filter(|&x| x == 0u8).count() // use bytecount::count instead + /// ``` pub NAIVE_BYTECOUNT, perf, "use of naive `<slice>.filter(|&x| x == y).count()` to count byte values" |