34 lines
918 B
Go
34 lines
918 B
Go
// Copyright 2018 PingCAP, Inc.
|
|
//
|
|
// 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,
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package set
|
|
|
|
// StringSet is a string set.
|
|
type StringSet map[string]struct{}
|
|
|
|
// NewStringSet builds a float64 set.
|
|
func NewStringSet() StringSet {
|
|
return make(map[string]struct{})
|
|
}
|
|
|
|
// Exist checks whether `val` exists in `s`.
|
|
func (s StringSet) Exist(val string) bool {
|
|
_, ok := s[val]
|
|
return ok
|
|
}
|
|
|
|
// Insert inserts `val` into `s`.
|
|
func (s StringSet) Insert(val string) {
|
|
s[val] = struct{}{}
|
|
}
|