1 files changed, 57 insertions, 0 deletions
diff --git a/v_windows/v/vlib/v/tests/generics_with_anon_generics_fn_test.v b/v_windows/v/vlib/v/tests/generics_with_anon_generics_fn_test.v
new file mode 100644
index 0000000..b5bde8f
--- /dev/null
+++ b/v_windows/v/vlib/v/tests/generics_with_anon_generics_fn_test.v
@@ -0,0 +1,57 @@
+struct MyStruct<T> {
+	arr []T
+}
+
+fn (mut s MyStruct<T>) get_data(pos int) T {
+	return s.arr[pos]
+}
+
+fn (mut s MyStruct<T>) iterate(handler fn (T) int) int {
+	mut sum := 0
+	mut i := 0
+	for {
+		k := s.get_data<T>(i)
+		sum += handler(k)
+		i++
+		if i > 4 {
+			break
+		}
+	}
+	return sum
+}
+
+pub fn consume(data int) int {
+	return data
+}
+
+pub fn consume_str(data string) string {
+	return data
+}
+
+fn call<T>(f fn (T) T, v T) T {
+	return f(v)
+}
+
+struct Pair<T, U> {
+	a T
+	b U
+}
+
+fn test_generics_with_anon_generics_fn() {
+	mut s := MyStruct<int>{
+		arr: [1, 2, 3, 4, 5]
+	}
+	y := s.iterate<int>(consume)
+	println(y)
+	assert y == 15
+
+	assert call<int>(consume, 1) == 1
+	assert call<string>(consume_str, '1') == '1'
+	assert call(consume, 1) == 1
+	assert call(consume_str, '1') == '1'
+
+	pair := Pair<int, string>{1, 's'}
+	assert call(fn (v Pair<int, string>) Pair<int, string> {
+		return v
+	}, pair) == pair
+}