feat: add *int support

Fixes #257

driver.go

@@ -770,6 +770,8 @@ func checkIsValidType(v driver.Value) bool {
 	case *[]uint:
 	case int:
 	case []int:
+	case *int:
+	case *[]int:
 	case int64:
 	case []int64:
 	case spanner.NullInt64:

stmt.go

@@ -95,6 +95,14 @@ func convertParam(v driver.Value) driver.Value {
 	switch v := v.(type) {
 	default:
 		return v
+	case int:
+		return int64(v)
+	case []int:
+		res := make([]int64, len(v))
+		for i, val := range v {
+			res[i] = int64(val)
+		}
+		return res
 	case uint:
 		return int64(v)
 	case []uint:
@@ -103,6 +111,21 @@ func convertParam(v driver.Value) driver.Value {
 			res[i] = int64(val)
 		}
 		return res
+	case *int:
+		if v == nil {
+			return (*int64)(nil)
+		}
+		vi := int64(*v)
+		return &vi
+	case *[]int:
+		if v == nil {
+			return (*[]int64)(nil)
+		}
+		res := make([]int64, len(*v))
+		for i, val := range *v {
+			res[i] = int64(val)
+		}
+		return &res
 	case *uint:
 		if v == nil {
 			return (*int64)(nil)

stmt_test.go

@@ -29,11 +29,16 @@ func TestConvertParam(t *testing.T) {
 	}
 
 	check(uint(197), int64(197))
-	check([]uint{197}, []int64{197})
 	check(pointerTo[uint](197), pointerTo[int64](197))
-	check(pointerTo[[]uint]([]uint{197}), pointerTo[[]int64]([]int64{197}))
 	check((*uint)(nil), (*int64)(nil))
+
+	check([]uint{197}, []int64{197})
+	check(pointerTo[[]uint]([]uint{197}), pointerTo[[]int64]([]int64{197}))
 	check((*[]uint)(nil), (*[]int64)(nil))
+
+	check([]int{197}, []int64{197})
+	check(pointerTo[[]int]([]int{197}), pointerTo[[]int64]([]int64{197}))
+	check((*[]int)(nil), (*[]int64)(nil))
 }
 
 func pointerTo[T any](v T) *T { return &v }