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Add a warning about Option/Result::and() being eagerly evaluated

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Copied from `or()`.
This commit is contained in:
Chayim Refael Friedman 2022-08-23 16:15:09 +00:00
parent ee8c31e64d
commit eb2fdd917e
2 changed files with 11 additions and 0 deletions
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6
library/core/src/option.rs
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@ -1189,6 +1189,12 @@ impl<T> Option<T> {
/// Returns [`None`] if the option is [`None`], otherwise returns `optb`.
///
/// Arguments passed to `and` are eagerly evaluated; if you are passing the
/// result of a function call, it is recommended to use [`and_then`], which is
/// lazily evaluated.
///
/// [`and_then`]: Option::and_then
///
/// # Examples
///
/// ```