mirror of
https://github.com/superseriousbusiness/gotosocial
synced 2024-12-08 22:46:19 +01:00
5004e0a9da
* fix error check of prune to allow missing files * update go-store library, add test for pruning item with db entry but no file Signed-off-by: kim <grufwub@gmail.com> * remove now-unneccessary error check Signed-off-by: kim <grufwub@gmail.com> Co-authored-by: kim <grufwub@gmail.com>
100 lines
2.6 KiB
Go
100 lines
2.6 KiB
Go
package errors
|
|
|
|
import (
|
|
"errors"
|
|
"reflect"
|
|
|
|
"codeberg.org/gruf/go-bitutil"
|
|
)
|
|
|
|
// Is reports whether any error in err's chain matches any of targets
|
|
// (up to a max of 64 targets).
|
|
//
|
|
// The chain consists of err itself followed by the sequence of errors obtained by
|
|
// repeatedly calling Unwrap.
|
|
//
|
|
// An error is considered to match a target if it is equal to that target or if
|
|
// it implements a method Is(error) bool such that Is(target) returns true.
|
|
func Is(err error, targets ...error) bool {
|
|
var flags bitutil.Flags64
|
|
|
|
if len(targets) > 64 {
|
|
panic("too many targets")
|
|
}
|
|
|
|
// Determine if each of targets are comparable
|
|
for i := 0; i < len(targets); {
|
|
// Drop nil errors
|
|
if targets[i] == nil {
|
|
targets = append(targets[:i], targets[i+1:]...)
|
|
continue
|
|
}
|
|
|
|
// Check if this error is directly comparable
|
|
if reflect.TypeOf(targets[i]).Comparable() {
|
|
flags = flags.Set(uint8(i))
|
|
}
|
|
|
|
i++
|
|
}
|
|
|
|
for err != nil {
|
|
var errorIs func(error) bool
|
|
|
|
// Check if this layer supports .Is interface
|
|
is, ok := err.(interface{ Is(error) bool })
|
|
if ok {
|
|
errorIs = is.Is
|
|
} else {
|
|
errorIs = neveris
|
|
}
|
|
|
|
for i := 0; i < len(targets); i++ {
|
|
// Try directly compare errors
|
|
if flags.Get(uint8(i)) &&
|
|
err == targets[i] {
|
|
return true
|
|
}
|
|
|
|
// Try use .Is() interface
|
|
if errorIs(targets[i]) {
|
|
return true
|
|
}
|
|
}
|
|
|
|
// Unwrap to next layer
|
|
err = errors.Unwrap(err)
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
// As finds the first error in err's chain that matches target, and if one is found, sets
|
|
// target to that error value and returns true. Otherwise, it returns false.
|
|
//
|
|
// The chain consists of err itself followed by the sequence of errors obtained by
|
|
// repeatedly calling Unwrap.
|
|
//
|
|
// An error matches target if the error's concrete value is assignable to the value
|
|
// pointed to by target, or if the error has a method As(interface{}) bool such that
|
|
// As(target) returns true. In the latter case, the As method is responsible for
|
|
// setting target.
|
|
//
|
|
// An error type might provide an As method so it can be treated as if it were a
|
|
// different error type.
|
|
//
|
|
// As panics if target is not a non-nil pointer to either a type that implements
|
|
// error, or to any interface type.
|
|
func As(err error, target interface{}) bool {
|
|
return errors.As(err, target)
|
|
}
|
|
|
|
// Unwrap returns the result of calling the Unwrap method on err, if err's
|
|
// type contains an Unwrap method returning error. Otherwise, Unwrap returns nil.
|
|
func Unwrap(err error) error {
|
|
return errors.Unwrap(err)
|
|
}
|
|
|
|
// neveris fits the .Is(error) bool interface function always returning false.
|
|
func neveris(error) bool { return false }
|