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Make into itemized list and fix some wording

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Chris Gregory 2019-03-27 01:52:55 -04:00
parent a68a0e33d1
commit 65b5e57226
1 changed files with 10 additions and 7 deletions
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17
src/libstd/keyword_docs.rs
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@ -286,13 +286,16 @@ mod fn_keyword { }
//
/// The `for` keyword.
///
/// `for` is primarily used in for-in-loops, but it has a few other pieces of syntactic
/// uses. `for` is used when implementing traits as in `impl Trait for Type` (see
/// [`impl`] for more info on that). `for` is also used for [higher-ranked trait bounds]
/// as in `for<'a> &'a T: PartialEq<i32>`. for-in-loops, or to be more precise, iterator
/// loops, are a simple syntactic sugar over an exceedingly common practice within Rust,
/// which is to loop over an iterator until that iterator returns `None` (or `break` is
/// called).
/// The `for` keyword is used in many syntactic locations:
///
/// * `for` is used in for-in-loops (see below).
/// * `for` is used when implementing traits as in `impl Trait for Type` (see [`impl`] for more info
/// on that).
/// * `for` is also used for [higher-ranked trait bounds] as in `for<'a> &'a T: PartialEq<i32>`.
///
/// for-in-loops, or to be more precise, iterator loops, are a simple syntactic sugar over a common
/// practice within Rust, which is to loop over an iterator until that iterator returns `None` (or
/// `break` is called).
///
/// ```rust
/// for i in 0..5 {