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package app
import (
"fmt"
"reflect"
)
// baseError implements a basic error container
type baseError struct {
Err error
}
func (e *baseError) Error() string {
return e.Err.Error()
}
func (e *baseError) Unwrap() error {
return e.Err
}
// BaseError implements an error container with a user-facing message
type BaseError struct {
message string
baseError
}
// Message returns a user-facing error message
func (e *BaseError) Message() string {
return e.message
}
func wrapError(err error, a ...any) *BaseError {
return &BaseError{
message: fmt.Sprintln(a...),
baseError: baseError{err},
}
}
var (
baseErrorType = reflect.TypeFor[*BaseError]()
)
func AsBaseError(err error, target **BaseError) bool {
v := reflect.ValueOf(err)
if !v.CanConvert(baseErrorType) {
return false
}
*target = v.Convert(baseErrorType).Interface().(*BaseError)
return true
}
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