Multiple Error aggregator for Go.
func foo() error {
merr := merror.New()
if err := DoSomething(); err != nil {
merr.Append(err)
}
return merr.ErrorOrNil()
}A bounded merror can be used to guard against memory ballooning.
func bar() error {
merr := merror.NewWithCap(10)
for i := 0; i < 15; i++ {
if err := DoSomething(); err != nil {
merr.Append(err)
}
}
fmt.Printf("Len: %d, Overflow: %d", merr.Len(), merr.Overflow())
// Len: 10, Overflow: 5
return merr.ErrorOrNil()
}If any of the errors appended to a merror match the target error passed to errors.Is(err, target error) then true is returned.
If any of the errors appended to a merror match the target type passed to errors.As(err error, target any) then true is returned and the target is set to the matching error.