bjoernager/rust
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Use zip_eq to enforce that things being zipped have equal sizes

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This commit is contained in:
Michael Goulet 2024-01-14 20:01:12 +00:00
parent c5cb87cf0c
commit c811662fb0
11 changed files with 33 additions and 10 deletions
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3
compiler/rustc_hir_analysis/src/variance/mod.rs
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@ -3,6 +3,7 @@
//!
//! [rustc dev guide]: https://rustc-dev-guide.rust-lang.org/variance.html
use itertools::Itertools;
use rustc_arena::DroplessArena;
use rustc_hir::def::DefKind;
use rustc_hir::def_id::{DefId, LocalDefId};
@ -91,7 +92,7 @@ fn variance_of_opaque(tcx: TyCtxt<'_>, item_def_id: LocalDefId) -> &[ty::Varianc
fn visit_opaque(&mut self, def_id: DefId, args: GenericArgsRef<'tcx>) -> ControlFlow<!> {
if def_id != self.root_def_id && self.tcx.is_descendant_of(def_id, self.root_def_id) {
let child_variances = self.tcx.variances_of(def_id);
for (a, v) in args.iter().zip(child_variances) {
for (a, v) in args.iter().zip_eq(child_variances) {
if *v != ty::Bivariant {
a.visit_with(self)?;
}