From 62815da83221944cc45a01c11637bf2331773408 Mon Sep 17 00:00:00 2001
From: Brad Lewis <22850972+BradLewis@users.noreply.github.com>
Date: Mon, 27 Oct 2025 20:02:38 -0400
Subject: Correctly display hover info for bitset with underlying type

---
 src/server/ast.odin   |  5 ++++-
 tests/hover_test.odin | 10 ++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/src/server/ast.odin b/src/server/ast.odin
index f60116d..70c568d 100644
--- a/src/server/ast.odin
+++ b/src/server/ast.odin
@@ -1296,8 +1296,11 @@ build_string_node :: proc(node: ^ast.Node, builder: ^strings.Builder, remove_poi
 		strings.write_string(builder, "bit_set")
 		strings.write_string(builder, "[")
 		build_string(n.elem, builder, remove_pointers)
+		if n.underlying != nil {
+			strings.write_string(builder, "; ")
+			build_string(n.underlying, builder, remove_pointers)
+		}
 		strings.write_string(builder, "]")
-		build_string(n.underlying, builder, remove_pointers)
 	case ^Map_Type:
 		strings.write_string(builder, "map")
 		strings.write_string(builder, "[")
diff --git a/tests/hover_test.odin b/tests/hover_test.odin
index e51d116..bd7abe6 100644
--- a/tests/hover_test.odin
+++ b/tests/hover_test.odin
@@ -5312,6 +5312,16 @@ ast_hover_proc_return_with_enum :: proc(t: ^testing.T) {
 	}
 	test.expect_hover(t, &source, "test.foo :: proc() -> enum{A, B}")
 }
+
+@(test)
+ast_hover_proc_arg_generic_bit_set :: proc(t: ^testing.T) {
+	source := test.Source {
+		main = `package test
+		f{*}oo :: proc($T: typeid/bit_set[$F; $E]) {}
+		`,
+	}
+	test.expect_hover(t, &source, "test.foo :: proc($T: typeid/bit_set[$F; $E])")
+}
 /*
 
 Waiting for odin fix
-- 
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