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Update docs for manual_split_once

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Jason Newcomb 2021-08-15 16:27:59 -04:00
parent a7f376fbd3
commit aab3267412
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1 changed files with 7 additions and 9 deletions
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16
clippy_lints/src/methods/mod.rs
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@ -1774,24 +1774,22 @@ declare_clippy_lint! {
}
declare_clippy_lint! {
/// **What it does:** Checks for usages of `splitn(2, _)`
/// **What it does:** Checks for usages of `str::splitn(2, _)`
///
/// **Why is this bad?** `split_once` is clearer.
/// **Why is this bad?** `split_once` is both clearer in intent and slightly more efficient.
///
/// **Known problems:** None.
///
/// **Example:**
///
/// ```rust
/// ```rust,ignore
/// // Bad
/// let some_str = "name=value";
/// let mut iter = some_str.splitn(2, '=');
/// let name = iter.next().unwrap();
/// let value = iter.next().unwrap_or("");
/// let (key, value) = _.splitn(2, '=').next_tuple()?;
/// let value = _.splitn(2, '=').nth(1)?;
///
/// // Good
/// let some_str = "name=value";
/// let (name, value) = some_str.split_once('=').unwrap_or((some_str, ""));
/// let (key, value) = _.split_once('=')?;
/// let value = _.split_once('=')?.1;
/// ```
pub MANUAL_SPLIT_ONCE,
complexity,