From b341e6726c7d6bced18f783f85459c992c9fdd84 Mon Sep 17 00:00:00 2001
From: Alexander Medvednikov <alexander@medvednikov.com>
Date: Tue, 14 Apr 2026 12:45:29 +0300
Subject: [PATCH] checker: Incorrect error message when importing modules
 indirectly (fixes #16271)

---
 .../tests/modules/indirect_import_unknown_module.out     | 7 +++++++
 .../tests/modules/indirect_import_unknown_module/m1/m1.v | 7 +++++++
 .../tests/modules/indirect_import_unknown_module/m2/m2.v | 3 +++
 .../tests/modules/indirect_import_unknown_module/main.v  | 9 +++++++++
 4 files changed, 26 insertions(+)
 create mode 100644 vlib/v/checker/tests/modules/indirect_import_unknown_module.out
 create mode 100644 vlib/v/checker/tests/modules/indirect_import_unknown_module/m1/m1.v
 create mode 100644 vlib/v/checker/tests/modules/indirect_import_unknown_module/m2/m2.v
 create mode 100644 vlib/v/checker/tests/modules/indirect_import_unknown_module/main.v

diff --git a/vlib/v/checker/tests/modules/indirect_import_unknown_module.out b/vlib/v/checker/tests/modules/indirect_import_unknown_module.out
new file mode 100644
index 000000000..971158f96
--- /dev/null
+++ b/vlib/v/checker/tests/modules/indirect_import_unknown_module.out
@@ -0,0 +1,7 @@
+vlib/v/checker/tests/modules/indirect_import_unknown_module/main.v:7:7: error: unknown module `m2`
+    5 | fn main() {
+    6 |     // vfmt off
+    7 |     m1.f(m2.Struct{})
+      |          ~~
+    8 |     // vfmt on
+    9 | }
diff --git a/vlib/v/checker/tests/modules/indirect_import_unknown_module/m1/m1.v b/vlib/v/checker/tests/modules/indirect_import_unknown_module/m1/m1.v
new file mode 100644
index 000000000..bc689461a
--- /dev/null
+++ b/vlib/v/checker/tests/modules/indirect_import_unknown_module/m1/m1.v
@@ -0,0 +1,7 @@
+module m1
+
+import m2
+
+pub fn f(s m2.Struct) {
+	_ = s
+}
diff --git a/vlib/v/checker/tests/modules/indirect_import_unknown_module/m2/m2.v b/vlib/v/checker/tests/modules/indirect_import_unknown_module/m2/m2.v
new file mode 100644
index 000000000..8a2ae9c8e
--- /dev/null
+++ b/vlib/v/checker/tests/modules/indirect_import_unknown_module/m2/m2.v
@@ -0,0 +1,3 @@
+module m2
+
+pub struct Struct {}
diff --git a/vlib/v/checker/tests/modules/indirect_import_unknown_module/main.v b/vlib/v/checker/tests/modules/indirect_import_unknown_module/main.v
new file mode 100644
index 000000000..c9dc42855
--- /dev/null
+++ b/vlib/v/checker/tests/modules/indirect_import_unknown_module/main.v
@@ -0,0 +1,9 @@
+module main
+
+import m1
+
+fn main() {
+	// vfmt off
+	m1.f(m2.Struct{})
+	// vfmt on
+}
-- 
2.39.5