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Don't check for late-bound vars, check for escaping bound vars #11760

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merged 2 commits into from
Nov 12, 2023
Merged

Don't check for late-bound vars, check for escaping bound vars #11760

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661e91b
Add test
compiler-errors Nov 5, 2023
1539eb8
Don't check for late-bound vars, check for escaping bound vars
compiler-errors Nov 5, 2023
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14 changes: 12 additions & 2 deletions clippy_utils/src/ty.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1160,7 +1160,12 @@ pub fn make_normalized_projection<'tcx>(
) -> Option<Ty<'tcx>> {
fn helper<'tcx>(tcx: TyCtxt<'tcx>, param_env: ParamEnv<'tcx>, ty: AliasTy<'tcx>) -> Option<Ty<'tcx>> {
#[cfg(debug_assertions)]
if let Some((i, arg)) = ty.args.iter().enumerate().find(|(_, arg)| arg.has_late_bound_regions()) {
if let Some((i, arg)) = ty
.args
.iter()
.enumerate()
.find(|(_, arg)| arg.has_escaping_bound_vars())
{
debug_assert!(
false,
"args contain late-bound region at index `{i}` which can't be normalized.\n\
Expand Down Expand Up @@ -1233,7 +1238,12 @@ pub fn make_normalized_projection_with_regions<'tcx>(
) -> Option<Ty<'tcx>> {
fn helper<'tcx>(tcx: TyCtxt<'tcx>, param_env: ParamEnv<'tcx>, ty: AliasTy<'tcx>) -> Option<Ty<'tcx>> {
#[cfg(debug_assertions)]
if let Some((i, arg)) = ty.args.iter().enumerate().find(|(_, arg)| arg.has_late_bound_regions()) {
if let Some((i, arg)) = ty
.args
.iter()
.enumerate()
.find(|(_, arg)| arg.has_escaping_bound_vars())
{
debug_assert!(
false,
"args contain late-bound region at index `{i}` which can't be normalized.\n\
Expand Down
6 changes: 6 additions & 0 deletions tests/ui/crashes/ice-11230.rs
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Original file line number Diff line number Diff line change
@@ -0,0 +1,6 @@
/// Test for https://github.com/rust-lang/rust-clippy/issues/11230

fn main() {
const A: &[for<'a> fn(&'a ())] = &[];
for v in A.iter() {}
}