From a993fb04d8a24219aeace6d8294db1419195678f Mon Sep 17 00:00:00 2001
From: kbkpbot <kbkpbot@sina.com>
Date: Sat, 24 May 2025 16:05:25 +0800
Subject: [PATCH] parser: fix duplicate mod imports (fix #24552) (#24559)

---
 vlib/sync/chan_mod_sync_test.v | 10 ++++++++++
 vlib/v/parser/module.v         |  3 +++
 2 files changed, 13 insertions(+)
 create mode 100644 vlib/sync/chan_mod_sync_test.v

diff --git a/vlib/sync/chan_mod_sync_test.v b/vlib/sync/chan_mod_sync_test.v
new file mode 100644
index 000000000..8dab4d381
--- /dev/null
+++ b/vlib/sync/chan_mod_sync_test.v
@@ -0,0 +1,10 @@
+module sync
+
+struct ChanStruct {
+	workers []chan bool
+}
+
+fn test_chan_mod_sync() {
+	_ := chan bool{cap: 1}
+	assert true
+}
diff --git a/vlib/v/parser/module.v b/vlib/v/parser/module.v
index 7781750fb..1eec26299 100644
--- a/vlib/v/parser/module.v
+++ b/vlib/v/parser/module.v
@@ -43,6 +43,9 @@ fn (mut p Parser) register_used_import_for_symbol_name(sym_name string) {
 }
 
 fn (mut p Parser) register_auto_import(alias string) {
+	if p.mod == alias {
+		return
+	}
 	if alias !in p.imports {
 		p.imports[alias] = alias
 		p.table.imports << alias
-- 
2.39.5