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Dogfood `str_split_once()` Part of https://github.com/rust-lang/rust/issues/74773. Beyond increased clarity, this fixes some instances of a common confusion with how `splitn(2)` behaves: the first element will always be `Some()`, regardless of the delimiter, and even if the value is empty. Given this code: ```rust fn main() { let val = "..."; let mut iter = val.splitn(2, '='); println!("Input: {:?}, first: {:?}, second: {:?}", val, iter.next(), iter.next()); } ``` We get: ``` Input: "no_delimiter", first: Some("no_delimiter"), second: None Input: "k=v", first: Some("k"), second: Some("v") Input: "=", first: Some(""), second: Some("") ``` Using `str_split_once()` makes more clear what happens when the delimiter is not found. |
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| test_macros | ||
| counters.rs | ||
| debug.rs | ||
| graph.rs | ||
| mod.rs | ||
| query.rs | ||
| spans.rs | ||
| tests.rs | ||