From cb14e7ebf40bb6edf9307813b341a9119800ef49 Mon Sep 17 00:00:00 2001
From: daxpedda <daxpedda@gmail.com>
Date: Sat, 10 Apr 2021 23:37:18 +0200
Subject: [PATCH] Fix false-positive `debug_assert` in `panic`

---
 clippy_lints/src/panic_unimplemented.rs |  2 +-
 tests/ui/panicking_macros.rs            | 14 +++++++++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/clippy_lints/src/panic_unimplemented.rs b/clippy_lints/src/panic_unimplemented.rs
index 1e946858947..1a680e7607e 100644
--- a/clippy_lints/src/panic_unimplemented.rs
+++ b/clippy_lints/src/panic_unimplemented.rs
@@ -74,7 +74,7 @@ declare_lint_pass!(PanicUnimplemented => [UNIMPLEMENTED, UNREACHABLE, TODO, PANI
 
 impl<'tcx> LateLintPass<'tcx> for PanicUnimplemented {
     fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx Expr<'_>) {
-        if match_panic_call(cx, expr).is_some() {
+        if match_panic_call(cx, expr).is_some() && is_expn_of(expr.span, "debug_assert").is_none() {
             let span = get_outer_span(expr);
             if is_expn_of(expr.span, "unimplemented").is_some() {
                 span_lint(
diff --git a/tests/ui/panicking_macros.rs b/tests/ui/panicking_macros.rs
index 77fcb8dfd02..93b236f7473 100644
--- a/tests/ui/panicking_macros.rs
+++ b/tests/ui/panicking_macros.rs
@@ -1,5 +1,5 @@
 #![warn(clippy::unimplemented, clippy::unreachable, clippy::todo, clippy::panic)]
-#![allow(clippy::assertions_on_constants)]
+#![allow(clippy::assertions_on_constants, clippy::eq_op)]
 
 extern crate core;
 
@@ -43,6 +43,18 @@ fn core_versions() {
     unreachable!();
 }
 
+fn debug_assert() {
+    debug_assert!(true);
+    debug_assert_eq!(true, true);
+    debug_assert_ne!(true, false);
+}
+
+fn debug_assert_msg() {
+    debug_assert!(true, "test");
+    debug_assert_eq!(true, true, "test");
+    debug_assert_ne!(true, false, "test");
+}
+
 fn main() {
     panic();
     todo();