Flatten flattens the given error, merging any *Errors together into a single *Error.
ListFormatFunc is a basic formatter that outputs the number of errors that occurred along with a bullet point list of the errors.
Prefix is a helper function that will prefix some text to the given error. If the error is a multierror.Error, then it will be prefixed to each wrapped error.
This is useful to use when appending multiple multierrors together in order to give better scoping.
Error is an error type to track multiple errors. This is used to accumulate errors in cases and return them as a single "error".
Append is a helper function that will append more errors onto an Error in order to create a larger multi-error.
If err is not a multierror.Error, then it will be turned into one. If any of the errs are multierr.Error, they will be flattened one level into err.
ErrorOrNil returns an error interface if this Error represents a list of errors, or returns nil if the list of errors is empty. This function is useful at the end of accumulation to make sure that the value returned represents the existence of errors.
Len implements sort.Interface function for length
Less implements sort.Interface function for determining order
Swap implements sort.Interface function for swapping elements
WrappedErrors returns the list of errors that this Error is wrapping. It is an implementation of the errwrap.Wrapper interface so that multierror.Error can be used with that library.
This method is not safe to be called concurrently and is no different than accessing the Errors field directly. It is implemented only to satisfy the errwrap.Wrapper interface.
ErrorFormatFunc is a function callback that is called by Error to turn the list of errors into a string.