From 0905a7786e44727b265cb11486d742f1c6681e7d Mon Sep 17 00:00:00 2001
From: Caio <c410.f3r@gmail.com>
Date: Wed, 11 Sep 2024 13:58:05 -0300
Subject: [PATCH] Fix #13381

---
 clippy_lints/src/panic_in_result_fn.rs | 12 +++++++-----
 tests/ui/panic_in_result_fn.rs         |  9 +++++++++
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/clippy_lints/src/panic_in_result_fn.rs b/clippy_lints/src/panic_in_result_fn.rs
index 381975199..fa15d5e4f 100644
--- a/clippy_lints/src/panic_in_result_fn.rs
+++ b/clippy_lints/src/panic_in_result_fn.rs
@@ -1,8 +1,8 @@
 use clippy_utils::diagnostics::span_lint_and_then;
 use clippy_utils::macros::root_macro_call_first_node;
-use clippy_utils::return_ty;
 use clippy_utils::ty::is_type_diagnostic_item;
 use clippy_utils::visitors::{for_each_expr, Descend};
+use clippy_utils::{is_inside_always_const_context, return_ty};
 use core::ops::ControlFlow;
 use rustc_hir as hir;
 use rustc_hir::intravisit::FnKind;
@@ -68,10 +68,12 @@ fn lint_impl_body<'tcx>(cx: &LateContext<'tcx>, impl_span: Span, body: &'tcx hir
         let Some(macro_call) = root_macro_call_first_node(cx, e) else {
             return ControlFlow::Continue(Descend::Yes);
         };
-        if matches!(
-            cx.tcx.item_name(macro_call.def_id).as_str(),
-            "panic" | "assert" | "assert_eq" | "assert_ne"
-        ) {
+        if !is_inside_always_const_context(cx.tcx, e.hir_id)
+            && matches!(
+                cx.tcx.item_name(macro_call.def_id).as_str(),
+                "panic" | "assert" | "assert_eq" | "assert_ne"
+            )
+        {
             panics.push(macro_call.span);
             ControlFlow::Continue(Descend::No)
         } else {
diff --git a/tests/ui/panic_in_result_fn.rs b/tests/ui/panic_in_result_fn.rs
index aaaf9a109..e2375aa99 100644
--- a/tests/ui/panic_in_result_fn.rs
+++ b/tests/ui/panic_in_result_fn.rs
@@ -71,6 +71,15 @@ fn function_result_with_custom_todo() -> Result<bool, String> // should not emit
     Ok(true)
 }
 
+fn issue_13381<const N: usize>() -> Result<(), String> {
+    const {
+        if N == 0 {
+            panic!();
+        }
+    }
+    Ok(())
+}
+
 fn main() -> Result<(), String> {
     todo!("finish main method");
     Ok(())