internal_error.go

package vhttp

import "fmt"

// InternalError is used to signal that an error returned from a validator
// is not a validation error but an internal error.
//
// An InternalError is meant to wrap a real error returned in the process
// of validating a request or response.
type InternalError struct {
	err error
}

// InternalErr creates a new InternalError
func InternalErr(err error) error {
	return InternalError{err}
}

func (e InternalError) Error() string {
	return e.err.Error()
}

func (e InternalError) Unwrap() error {
	return e.err
}

// Wrap returns a new InternalError where the underlying error is the
// result of wrapping e's underlying error (using fmt.Errorf) with
// the message msg prepended to the error message chain.
//
// Equivalent to:
//
//	err := vhttp.InternalErr(fmt.Errorf("%s: %w", msg, ierr.Unwrap()))
func (e InternalError) Wrap(msg string) error {
	return InternalErr(fmt.Errorf("%s: %w", msg, e.err))
}