Improve spans for indexing expressions

Indexing is similar to method calls in having an arbitrary
left-hand-side and then something on the right, which is the main part
of the expression. Method calls already have a span for that right part,
but indexing does not. This means that long method chains that use
indexing have really bad spans, especially when the indexing panics and
that span in coverted into a panic location.

This does the same thing as method calls for the AST and HIR, storing an
extra span which is then put into the `fn_span` field in THIR.
This commit is contained in:
Nilstrieb 2023-08-03 21:43:17 +02:00
parent ff27f9095f
commit ed0dfed24f
33 changed files with 42 additions and 42 deletions

View file

@ -103,11 +103,11 @@ fn check_tuple<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'tcx>, elements: &
// Fix #11100
&& tys.iter().all_equal()
&& let Some(locals) = (match first.kind {
ExprKind::Index(_, _) => elements
ExprKind::Index(..) => elements
.iter()
.enumerate()
.map(|(i, i_expr)| -> Option<&'tcx Expr<'tcx>> {
if let ExprKind::Index(lhs, index) = i_expr.kind
if let ExprKind::Index(lhs, index, _) = i_expr.kind
&& let ExprKind::Lit(lit) = index.kind
&& let LitKind::Int(val, _) = lit.node
{