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404eaa32d2
* Changes to support custom URL paths * Refactor image resolver code * Initialise box files at startup * Update packr Co-authored-by: WithoutPants <53250216+WithoutPants@users.noreply.github.com>
49 lines
622 B
Go
49 lines
622 B
Go
package errx
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import "fmt"
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// go2 errors
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type Wrapper interface {
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Unwrap() error
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}
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// pkg/errors
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type Causer interface {
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Cause() error
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}
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func Unwrap(err error) error {
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switch e := err.(type) {
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case Wrapper:
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return e.Unwrap()
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case Causer:
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return e.Cause()
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}
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return err
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}
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var Cause = Unwrap
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func Wrap(err error, msg string) error {
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return wrapped{
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err: err,
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msg: msg,
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}
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}
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type wrapped struct {
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err error
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msg string
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}
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func (w wrapped) Error() string {
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return fmt.Sprintf("%s: %s", w.msg, w.err)
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}
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func (w wrapped) Unwrap() error {
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return w.err
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}
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func (w wrapped) Cause() error {
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return w.err
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}
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