From 7b8c9fb71577274276f4e35d5615f5e34315a7e8 Mon Sep 17 00:00:00 2001
From: kbkpbot <kbkpbot@sina.com>
Date: Thu, 29 May 2025 15:34:57 +0800
Subject: [PATCH] sync.stdatomic: turn panic() in new_atomic[T]() into a
 $compile_error() (#24573)

---
 vlib/sync/stdatomic/atomic.c.v                      | 10 ++++++++--
 vlib/v/checker/tests/sync_stdatomic_compile_err.out |  7 +++++++
 vlib/v/checker/tests/sync_stdatomic_compile_err.vv  |  3 +++
 3 files changed, 18 insertions(+), 2 deletions(-)
 create mode 100644 vlib/v/checker/tests/sync_stdatomic_compile_err.out
 create mode 100644 vlib/v/checker/tests/sync_stdatomic_compile_err.vv

diff --git a/vlib/sync/stdatomic/atomic.c.v b/vlib/sync/stdatomic/atomic.c.v
index eac35738f..d50ea07ed 100644
--- a/vlib/sync/stdatomic/atomic.c.v
+++ b/vlib/sync/stdatomic/atomic.c.v
@@ -69,12 +69,18 @@ pub struct AtomicVal[T] {
 // new_atomic creates a new atomic value of `T` type
 @[inline]
 pub fn new_atomic[T](val T) &AtomicVal[T] {
-	$if T is $int || T is bool {
+	// can't use `$if T is $int || T is bool` with $compile_error() now
+	// see issue #24562
+	$if T is $int {
+		return &AtomicVal[T]{
+			val: val
+		}
+	} $else $if T is bool {
 		return &AtomicVal[T]{
 			val: val
 		}
 	} $else {
-		panic('atomic: only support number and bool types')
+		$compile_error('atomic: only support number and bool types')
 	}
 	return unsafe { nil }
 }
diff --git a/vlib/v/checker/tests/sync_stdatomic_compile_err.out b/vlib/v/checker/tests/sync_stdatomic_compile_err.out
new file mode 100644
index 000000000..c384a752a
--- /dev/null
+++ b/vlib/v/checker/tests/sync_stdatomic_compile_err.out
@@ -0,0 +1,7 @@
+vlib/sync/stdatomic/atomic.c.v:83:3: error: atomic: only support number and bool types
+   81 |         }
+   82 |     } $else {
+   83 |         $compile_error('atomic: only support number and bool types')
+      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+   84 |     }
+   85 |     return unsafe { nil }
diff --git a/vlib/v/checker/tests/sync_stdatomic_compile_err.vv b/vlib/v/checker/tests/sync_stdatomic_compile_err.vv
new file mode 100644
index 000000000..cadffc1ae
--- /dev/null
+++ b/vlib/v/checker/tests/sync_stdatomic_compile_err.vv
@@ -0,0 +1,3 @@
+import sync.stdatomic {new_atomic}
+
+_ := new_atomic(`1`)
-- 
2.39.5