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reword Option::as_ref and Option::map examples #104965

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merged 2 commits into from
Jan 14, 2023
Merged

reword Option::as_ref and Option::map examples #104965

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74e7709
reword Option::as_ref and Option::map examples
zacklukem Nov 26, 2022
123e203
add link for string to as_ref docs
zacklukem Nov 27, 2022
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13 changes: 7 additions & 6 deletions library/core/src/option.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -608,13 +608,14 @@ impl<T> Option<T> {
///
/// # Examples
///
/// Converts an <code>Option<[String]></code> into an <code>Option<[usize]></code>, preserving
/// the original. The [`map`] method takes the `self` argument by value, consuming the original,
/// so this technique uses `as_ref` to first take an `Option` to a reference
/// to the value inside the original.
/// Calculates the length of an <code>Option<[String]></code> as an <code>Option<[usize]></code>
/// without moving the [`String`]. The [`map`] method takes the `self` argument by value,
/// consuming the original, so this technique uses `as_ref` to first take an `Option` to a
/// reference to the value inside the original.
///
/// [`map`]: Option::map
/// [String]: ../../std/string/struct.String.html "String"
/// [`String`]: ../../std/string/struct.String.html "String"
///
/// ```
/// let text: Option<String> = Some("Hello, world!".to_string());
Expand Down Expand Up @@ -902,8 +903,8 @@ impl<T> Option<T> {
///
/// # Examples
///
/// Converts an <code>Option<[String]></code> into an <code>Option<[usize]></code>, consuming
/// the original:
/// Calculates the length of an <code>Option<[String]></code> as an
/// <code>Option<[usize]></code>, consuming the original:
///
/// [String]: ../../std/string/struct.String.html "String"
/// ```
Expand Down