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// Copyright The Notary Project Authors.
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package set
// Set is a map as a set data structure.
type Set[T comparable] map[T]struct{}
// Add adds the element of type T into the Set.
func (s Set[T]) Add(elem T) {
s[elem] = struct{}{}
}
// Contains checks if element exists in the Set.
func (s Set[T]) Contains(elem T) bool {
_, ok := s[elem]
return ok
}
// New creates an empty Set for elements of type T.
func New[T comparable]() Set[T] {
return make(map[T]struct{})
}
// NewWithSize creates an empty Set of fixed size for elements of type T.
func NewWithSize[T comparable](size int) Set[T] {
return make(map[T]struct{}, size)
}
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