Fix #8748
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39231b4b50
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0a7f19b547
@ -160,9 +160,13 @@ impl<'tcx> LateLintPass<'tcx> for Shadow {
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fn is_shadow(cx: &LateContext<'_>, owner: LocalDefId, first: ItemLocalId, second: ItemLocalId) -> bool {
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let scope_tree = cx.tcx.region_scope_tree(owner.to_def_id());
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let first_scope = scope_tree.var_scope(first).unwrap();
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let second_scope = scope_tree.var_scope(second).unwrap();
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scope_tree.is_subscope_of(second_scope, first_scope)
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if let Some(first_scope) = scope_tree.var_scope(first) {
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if let Some(second_scope) = scope_tree.var_scope(second) {
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return scope_tree.is_subscope_of(second_scope, first_scope);
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}
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}
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false
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}
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fn lint_shadow(cx: &LateContext<'_>, pat: &Pat<'_>, shadowed: HirId, span: Span) {
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@ -88,4 +88,11 @@ pub async fn foo2(_a: i32, _b: i64) {
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let _b = _a;
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}
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fn ice_8748() {
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let _ = [0; {
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let x = 1;
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if let Some(x) = Some(1) { x } else { 1 }
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}];
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}
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fn main() {}
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