tidb slice 代码
文件路径：/util/slice/slice.go
/ Copyright 2021 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,
/ 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 slice
import "reflect"
/ AnyOf returns true if any element in the slice matches the predict func.
func AnyOf(s interface{}, p func(int) bool) bool {
l := reflect.ValueOf(s).Len()
for i := 0; i < l; i++ {
if p(i) {
return true
}
}
return false
}
/ NoneOf returns true if no element in the slice matches the predict func.
func NoneOf(s interface{}, p func(int) bool) bool {
return !AnyOf(s, p)
}
/ AllOf returns true if all elements in the slice match the predict func.
func AllOf(s interface{}, p func(int) bool) bool {
np := func(i int) bool {
return !p(i)
}
return NoneOf(s, np)
}