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Improve find_binding_init docs

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Cameron Steffen 2021-03-15 08:51:23 -05:00
parent ecf0c76c36
commit 59dba04ccb
1 changed files with 3 additions and 7 deletions
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10
clippy_utils/src/lib.rs
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@ -173,13 +173,9 @@ pub fn expr_or_init<'a, 'b, 'tcx: 'b>(cx: &LateContext<'tcx>, mut expr: &'a Expr
/// By only considering immutable bindings, we guarantee that the returned expression represents the
/// value of the binding wherever it is referenced.
///
/// Example:
/// ```ignore
/// let abc = 1;
/// // ^ output
/// dbg!(abc)
/// // ^^^ input
/// ```
/// Example: For `let x = 1`, if the `HirId` of `x` is provided, the `Expr` `1` is returned.
/// Note: If you have an expression that references a binding `x`, use `path_to_local` to get the
/// canonical binding `HirId`.
pub fn find_binding_init<'tcx>(cx: &LateContext<'tcx>, hir_id: HirId) -> Option<&'tcx Expr<'tcx>> {
let hir = cx.tcx.hir();
if_chain! {