From 113c1476c923492ea1427b061458a6ab8faf8df8 Mon Sep 17 00:00:00 2001 From: Mara Bos Date: Thu, 19 Nov 2020 19:47:25 +0100 Subject: [PATCH] Clippy: Match on assert!() expansions without an inner block. --- clippy_lints/src/assertions_on_constants.rs | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/clippy_lints/src/assertions_on_constants.rs b/clippy_lints/src/assertions_on_constants.rs index a2ccb0369c4..a52f0997d43 100644 --- a/clippy_lints/src/assertions_on_constants.rs +++ b/clippy_lints/src/assertions_on_constants.rs @@ -129,8 +129,11 @@ fn match_assert_with_message<'tcx>(cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) if let ExprKind::Block(ref block, _) = arms[0].body.kind; if block.stmts.is_empty(); if let Some(block_expr) = &block.expr; - if let ExprKind::Block(ref inner_block, _) = block_expr.kind; - if let Some(begin_panic_call) = &inner_block.expr; + // inner block is optional. unwarp it if it exists, or use the expression as is otherwise. + if let Some(begin_panic_call) = match block_expr.kind { + ExprKind::Block(ref inner_block, _) => &inner_block.expr, + _ => &block.expr, + }; // function call if let Some(args) = match_panic_call(cx, begin_panic_call); if args.len() == 1;