203bf7d2e6
* build: Update linter to 1.53.2 * database: Rename helpers.go to encoding.go * database: Ignore json.Marshal errors.
72 lines
1.4 KiB
Go
72 lines
1.4 KiB
Go
// Copyright (c) 2022-2023 The Decred developers
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package database
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import (
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"encoding/binary"
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"encoding/json"
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)
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func bytesToStringMap(bytes []byte) (map[string]string, error) {
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if bytes == nil {
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return make(map[string]string), nil
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}
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var stringMap map[string]string
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err := json.Unmarshal(bytes, &stringMap)
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if err != nil {
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return nil, err
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}
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// stringMap can still be nil here, eg. if bytes == "null".
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if stringMap == nil {
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stringMap = make(map[string]string)
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}
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return stringMap, nil
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}
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func stringMapToBytes(stringMap map[string]string) []byte {
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// json.Marshal will only return an error if passed an invalid struct.
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// Structs are all known and hard-coded, so errors are never expected here.
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bytes, err := json.Marshal(stringMap)
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if err != nil {
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panic(err)
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}
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return bytes
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}
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func int64ToBytes(i int64) []byte {
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bytes := make([]byte, 8)
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binary.LittleEndian.PutUint64(bytes, uint64(i))
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return bytes
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}
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func bytesToInt64(bytes []byte) int64 {
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return int64(binary.LittleEndian.Uint64(bytes))
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}
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func uint32ToBytes(i uint32) []byte {
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bytes := make([]byte, 4)
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binary.LittleEndian.PutUint32(bytes, i)
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return bytes
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}
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func bytesToUint32(bytes []byte) uint32 {
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return binary.LittleEndian.Uint32(bytes)
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}
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func bytesToBool(bytes []byte) bool {
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return bytes[0] == 1
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}
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func boolToBytes(b bool) []byte {
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if b {
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return []byte{1}
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}
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return []byte{0}
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}
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