mirror of
https://github.com/docker/compose.git
synced 2026-05-13 13:58:02 +00:00
99 lines
2 KiB
Go
99 lines
2 KiB
Go
/*
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Copyright 2020 Docker Compose CLI authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package utils
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type Set[T comparable] map[T]struct{}
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func NewSet[T comparable](v ...T) Set[T] {
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if len(v) == 0 {
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return make(Set[T])
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}
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out := make(Set[T], len(v))
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for i := range v {
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out.Add(v[i])
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}
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return out
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}
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func (s Set[T]) Has(v T) bool {
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_, ok := s[v]
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return ok
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}
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func (s Set[T]) Add(v T) {
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s[v] = struct{}{}
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}
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func (s Set[T]) AddAll(v ...T) {
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for _, e := range v {
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s[e] = struct{}{}
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}
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}
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func (s Set[T]) Remove(v T) bool {
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_, ok := s[v]
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if ok {
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delete(s, v)
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}
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return ok
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}
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func (s Set[T]) RemoveAll(elements ...T) {
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for _, e := range elements {
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s.Remove(e)
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}
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}
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func (s Set[T]) Elements() []T {
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elements := make([]T, 0, len(s))
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for v := range s {
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elements = append(elements, v)
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}
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return elements
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}
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func (s Set[T]) Diff(other Set[T]) Set[T] {
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out := make(Set[T])
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for k := range s {
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if _, ok := other[k]; !ok {
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out[k] = struct{}{}
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}
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}
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return out
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}
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// Clear removes all elements from the set.
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//
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// Deprecated: Clear is retained for API compatibility; prefer re-assigning a new Set.
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func (s Set[T]) Clear() {
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for v := range s {
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delete(s, v)
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}
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}
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// Union returns a new set containing all elements from both s and other.
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//
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// Deprecated: Union is retained for API compatibility.
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func (s Set[T]) Union(other Set[T]) Set[T] {
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out := make(Set[T])
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for k := range s {
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out[k] = struct{}{}
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}
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for k := range other {
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out[k] = struct{}{}
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}
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return out
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}
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