surrealpatch/util/keys/keys.go
Tobie Morgan Hitchcock f56196a150 Update keys package
2017-02-09 20:35:19 +00:00

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1.8 KiB
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// Copyright © 2016 Abcum Ltd
//
// 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 keys
import "time"
const (
// Ignore specifies an ignored field
Ignore = ignore
// Prefix is the lowest char found in a key
Prefix = prefix
// Suffix is the highest char found in a key
Suffix = suffix
// Ignore specifies an ignored field
ignore = "\x01"
// Prefix is the lowest char found in a key
prefix = "\x00"
// Suffix is the highest char found in a key
suffix = "\xff"
)
var (
// StartOfTime is a datetime in the past
StartOfTime = time.Unix(0, 0)
// EndOfTime is a datetime in the future
EndOfTime = time.Now().AddDate(50, 0, 0)
)
var (
skip interface{}
)
var (
cEND = byte(0x00)
cPRE = byte(0x01)
cNIL = byte(0x02)
cVAL = byte(0x03)
cTME = byte(0x04)
cNEG = byte(0x05)
cPOS = byte(0x06)
cSTR = byte(0x07)
cARR = byte(0x08)
cSUF = byte(0x09)
)
var (
bEND = []byte{cEND}
bPRE = []byte{cPRE}
bNIL = []byte{cNIL}
bVAL = []byte{cVAL}
bTME = []byte{cTME}
bNEG = []byte{cNEG}
bPOS = []byte{cPOS}
bSTR = []byte{cSTR}
bARR = []byte{cARR}
bSUF = []byte{cSUF}
)
const (
// MinNumber is the minimum number which can be accurately serialized
MinNumber = -1 << 53
// MaxNumber is the maximum number which can be accurately serialized
MaxNumber = 1<<53 - 1
)
// Key ...
type Key interface {
String() string
Encode() []byte
Decode(data []byte)
}