init: 1.0.0

pkg/errorx/batcherror.go

@@ -0,0 +1,42 @@
+package errorx
+
+import (
+	"errors"
+	"sync"
+)
+
+// BatchError is an error that can hold multiple errors.
+type BatchError struct {
+	errs []error
+	lock sync.RWMutex
+}
+
+// Add adds one or more non-nil errors to the BatchError instance.
+func (be *BatchError) Add(errs ...error) {
+	be.lock.Lock()
+	defer be.lock.Unlock()
+
+	for _, err := range errs {
+		if err != nil {
+			be.errs = append(be.errs, err)
+		}
+	}
+}
+
+// Err returns an error that represents all accumulated errors.
+// It returns nil if there are no errors.
+func (be *BatchError) Err() error {
+	be.lock.RLock()
+	defer be.lock.RUnlock()
+
+	// If there are no non-nil errors, errors.Join(...) returns nil.
+	return errors.Join(be.errs...)
+}
+
+// NotNil checks if there is at least one error inside the BatchError.
+func (be *BatchError) NotNil() bool {
+	be.lock.RLock()
+	defer be.lock.RUnlock()
+
+	return len(be.errs) > 0
+}