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