mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-22 11:46:40 +00:00
c36f9ac37b
* [feature] Account alias / move API + db models * go fmt * fix little cherry-pick issues * update error checking, formatting * add and use new util functions to simplify alias logic
64 lines
1.6 KiB
Go
64 lines
1.6 KiB
Go
// GoToSocial
|
|
// Copyright (C) GoToSocial Authors admin@gotosocial.org
|
|
// SPDX-License-Identifier: AGPL-3.0-or-later
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package util
|
|
|
|
// Deduplicate deduplicates entries in the given slice.
|
|
func Deduplicate[T comparable](in []T) []T {
|
|
var (
|
|
inL = len(in)
|
|
unique = make(map[T]struct{}, inL)
|
|
deduped = make([]T, 0, inL)
|
|
)
|
|
|
|
for _, v := range in {
|
|
if _, ok := unique[v]; ok {
|
|
// Already have this.
|
|
continue
|
|
}
|
|
|
|
unique[v] = struct{}{}
|
|
deduped = append(deduped, v)
|
|
}
|
|
|
|
return deduped
|
|
}
|
|
|
|
// DeduplicateFunc deduplicates entries in the given
|
|
// slice, using the result of key() to gauge uniqueness.
|
|
func DeduplicateFunc[T any, C comparable](in []T, key func(v T) C) []T {
|
|
var (
|
|
inL = len(in)
|
|
unique = make(map[C]struct{}, inL)
|
|
deduped = make([]T, 0, inL)
|
|
)
|
|
|
|
for _, v := range in {
|
|
k := key(v)
|
|
|
|
if _, ok := unique[k]; ok {
|
|
// Already have this.
|
|
continue
|
|
}
|
|
|
|
unique[k] = struct{}{}
|
|
deduped = append(deduped, v)
|
|
}
|
|
|
|
return deduped
|
|
}
|