src/gobang.go: Add WrapErrors()

1 files changed, 19 insertions, 0 deletions

diff --git a/src/gobang.go b/src/gobang.go
index dd638f2..a35a57e 100644
--- a/src/gobang.go
+++ b/src/gobang.go
@@ -71,6 +71,25 @@ func ValidateSQLTablePrefix(prefix string) error {
 	return nil
 }
 
+func WrapErrors(errs ...error) error {
+	slices.Reverse(errs)
+	var out error
+	for _, err := range errs {
+		if err != nil {
+			if out == nil {
+				out = err
+			} else {
+				out = fmt.Errorf(
+					"error %w on top of %w",
+					err,
+					out,
+				)
+			}
+		}
+	}
+	return out
+}
+
 func SomeError(errs ...error) error {
 	for _, err := range errs {
 		if err != nil {