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add clearing return vars

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This commit is contained in:
Jaeyong Sung 2022-03-14 00:13:57 +09:00
parent 1ad7e7097a
commit 800f66de2b
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1 changed files with 6 additions and 2 deletions
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8
clippy_lints/src/only_used_in_recursion.rs
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@ -268,18 +268,22 @@ fn visit_stmt(&mut self, s: &'tcx Stmt<'tcx>) {
pat, init: Some(init), ..
}) => {
self.visit_pat_expr(pat, init, false);
self.ret_vars.clear();
},
StmtKind::Item(i) => {
let item = self.ty_ctx.hir().item(i);
self.visit_item(item);
self.ret_vars.clear();
},
StmtKind::Expr(e) | StmtKind::Semi(e) => {
self.visit_expr(e);
self.ret_vars.clear();
},
StmtKind::Expr(e) | StmtKind::Semi(e) => self.visit_expr(e),
StmtKind::Local(_) => {},
}
}
fn visit_expr(&mut self, ex: &'tcx Expr<'tcx>) {
debug_assert!(self.ret_vars.is_empty());
match ex.kind {
ExprKind::Array(exprs) | ExprKind::Tup(exprs) => {
self.ret_vars = exprs