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-rw-r--r--vendor/github.com/jackc/pgx/v5/internal/anynil/anynil.go36
1 files changed, 36 insertions, 0 deletions
diff --git a/vendor/github.com/jackc/pgx/v5/internal/anynil/anynil.go b/vendor/github.com/jackc/pgx/v5/internal/anynil/anynil.go
new file mode 100644
index 000000000..9a48c1a84
--- /dev/null
+++ b/vendor/github.com/jackc/pgx/v5/internal/anynil/anynil.go
@@ -0,0 +1,36 @@
+package anynil
+
+import "reflect"
+
+// Is returns true if value is any type of nil. e.g. nil or []byte(nil).
+func Is(value any) bool {
+ if value == nil {
+ return true
+ }
+
+ refVal := reflect.ValueOf(value)
+ switch refVal.Kind() {
+ case reflect.Chan, reflect.Func, reflect.Map, reflect.Ptr, reflect.UnsafePointer, reflect.Interface, reflect.Slice:
+ return refVal.IsNil()
+ default:
+ return false
+ }
+}
+
+// Normalize converts typed nils (e.g. []byte(nil)) into untyped nil. Other values are returned unmodified.
+func Normalize(v any) any {
+ if Is(v) {
+ return nil
+ }
+ return v
+}
+
+// NormalizeSlice converts all typed nils (e.g. []byte(nil)) in s into untyped nils. Other values are unmodified. s is
+// mutated in place.
+func NormalizeSlice(s []any) {
+ for i := range s {
+ if Is(s[i]) {
+ s[i] = nil
+ }
+ }
+}