From 535b04f4eda37a3119728350ed1f4afb8ac52d99 Mon Sep 17 00:00:00 2001
From: Swastik Baranwal <swstkbaranwal@gmail.com>
Date: Sun, 2 Feb 2025 14:21:17 +0530
Subject: [PATCH] v.parser: prevent unused warning on `import mod { Sym }`,
 when `Sym` is later used, for more cases (fix #23412) (#23626)

---
 .../tests/modules/enum_from_string_in_different_mods.out   | 7 -------
 vlib/v/parser/parser.v                                     | 3 +++
 vlib/v/slow_tests/inout/import_sym_field_no_warn.out       | 1 +
 vlib/v/slow_tests/inout/import_sym_field_no_warn.vv        | 7 +++++++
 4 files changed, 11 insertions(+), 7 deletions(-)
 create mode 100644 vlib/v/slow_tests/inout/import_sym_field_no_warn.out
 create mode 100644 vlib/v/slow_tests/inout/import_sym_field_no_warn.vv

diff --git a/vlib/v/checker/tests/modules/enum_from_string_in_different_mods.out b/vlib/v/checker/tests/modules/enum_from_string_in_different_mods.out
index e597eb825..9a5cc8986 100644
--- a/vlib/v/checker/tests/modules/enum_from_string_in_different_mods.out
+++ b/vlib/v/checker/tests/modules/enum_from_string_in_different_mods.out
@@ -1,10 +1,3 @@
-vlib/v/checker/tests/modules/enum_from_string_in_different_mods/src/main.v:3:8: warning: module 'mod' is imported but never used
-    1 | module main
-    2 | 
-    3 | import mod { MyEnum, MyStruct }
-      |        ~~~
-    4 | 
-    5 | fn main() {
 vlib/v/checker/tests/modules/enum_from_string_in_different_mods/src/main.v:3:14: error: module `mod` type `MyEnum` is private
     1 | module main
     2 | 
diff --git a/vlib/v/parser/parser.v b/vlib/v/parser/parser.v
index d3d9b6553..0ddfb0e03 100644
--- a/vlib/v/parser/parser.v
+++ b/vlib/v/parser/parser.v
@@ -747,6 +747,9 @@ fn (mut p Parser) check_name() string {
 	name := p.tok.lit
 	if p.tok.kind != .name && p.peek_tok.kind == .dot && name in p.imports {
 		p.register_used_import(name)
+	} else if p.tok.kind == .name && p.peek_tok.kind == .dot && name in p.imported_symbols {
+		// symbols like Enum.field_name
+		p.register_used_import_for_symbol_name(p.imported_symbols[name])
 	}
 	if !is_ident_name(name) {
 		p.check(.name)
diff --git a/vlib/v/slow_tests/inout/import_sym_field_no_warn.out b/vlib/v/slow_tests/inout/import_sym_field_no_warn.out
new file mode 100644
index 000000000..09eb42eee
--- /dev/null
+++ b/vlib/v/slow_tests/inout/import_sym_field_no_warn.out
@@ -0,0 +1 @@
+same_site_not_set
diff --git a/vlib/v/slow_tests/inout/import_sym_field_no_warn.vv b/vlib/v/slow_tests/inout/import_sym_field_no_warn.vv
new file mode 100644
index 000000000..9250634bb
--- /dev/null
+++ b/vlib/v/slow_tests/inout/import_sym_field_no_warn.vv
@@ -0,0 +1,7 @@
+import net.http { SameSite }
+
+fn main() {
+	mime := SameSite.same_site_not_set
+
+	println(mime)
+}
-- 
2.39.5