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conversion.go
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conversion.go
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// Copyright 2016 TiKV 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 typeutil
import (
"encoding/binary"
"github.com/tikv/pd/pkg/errs"
)
// BytesToUint64 converts a byte slice to uint64.
func BytesToUint64(b []byte) (uint64, error) {
if len(b) != 8 {
return 0, errs.ErrBytesToUint64.FastGenByArgs(len(b))
}
return binary.BigEndian.Uint64(b), nil
}
// Uint64ToBytes converts uint64 to a byte slice.
func Uint64ToBytes(v uint64) []byte {
b := make([]byte, 8)
binary.BigEndian.PutUint64(b, v)
return b
}
// BoolToUint64 converts bool to uint64.
func BoolToUint64(b bool) uint64 {
if b {
return 1
}
return 0
}
// BoolToInt converts bool to int.
func BoolToInt(b bool) int {
if b {
return 1
}
return 0
}
// JSONToUint64Slice converts JSON slice to uint64 slice.
func JSONToUint64Slice(from any) ([]uint64, bool) {
items, ok := from.([]any)
if !ok {
return nil, false
}
to := make([]uint64, 0, len(items))
for _, item := range items {
id, ok := item.(float64)
if !ok {
return nil, false
}
to = append(to, uint64(id))
}
return to, true
}