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Fix ICE in question_mark

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Jason Newcomb 2022-07-24 23:12:29 -04:00
parent 20e4204730
commit 2255cfd2ab
2 changed files with 10 additions and 2 deletions
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4
clippy_lints/src/question_mark.rs
View file

@ -123,8 +123,8 @@ fn check_if_let_some_or_err_and_early_return<'tcx>(cx: &LateContext<'tcx>, expr:
if_chain! {
if let Some(higher::IfLet { let_pat, let_expr, if_then, if_else }) = higher::IfLet::hir(cx, expr);
if !is_else_clause(cx.tcx, expr);
if let PatKind::TupleStruct(ref path1, fields, None) = let_pat.kind;
if let PatKind::Binding(annot, bind_id, ident, _) = fields[0].kind;
if let PatKind::TupleStruct(ref path1, [field], None) = let_pat.kind;
if let PatKind::Binding(annot, bind_id, ident, _) = field.kind;
let caller_ty = cx.typeck_results().expr_ty(let_expr);
let if_block = IfBlockType::IfLet(path1, caller_ty, ident.name, let_expr, if_then, if_else);
if (is_early_return(sym::Option, cx, &if_block) && path_to_local_id(peel_blocks(if_then), bind_id))

8
tests/ui/crashes/ice-9242.rs Normal file
View file

@ -0,0 +1,8 @@
enum E {
X(),
Y,
}
fn main() {
let _ = if let E::X() = E::X() { 1 } else { 2 };
}