/usr/share/gocode/src/github.com/cznic/ql/blob.go is in golang-github-cznic-ql-dev 1.0.6-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 | // Copyright 2014 The ql Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package ql
import (
"bytes"
"encoding/gob"
"math/big"
"sync"
"time"
)
const shortBlob = 256 // bytes
var (
gobInitDuration = time.Duration(278)
gobInitInt = big.NewInt(42)
gobInitRat = big.NewRat(355, 113)
gobInitTime time.Time
)
func init() {
var err error
if gobInitTime, err = time.ParseInLocation(
"Jan 2, 2006 at 3:04pm (MST)",
"Jul 9, 2012 at 5:02am (CEST)",
time.FixedZone("XYZ", 1234),
); err != nil {
panic(err)
}
newGobCoder()
}
type gobCoder struct {
buf bytes.Buffer
dec *gob.Decoder
enc *gob.Encoder
mu sync.Mutex
}
func newGobCoder() (g *gobCoder) {
g = &gobCoder{}
g.enc = gob.NewEncoder(&g.buf)
if err := g.enc.Encode(gobInitInt); err != nil {
panic(err)
}
if err := g.enc.Encode(gobInitRat); err != nil {
panic(err)
}
if err := g.enc.Encode(gobInitTime); err != nil {
panic(err)
}
if err := g.enc.Encode(gobInitDuration); err != nil {
panic(err)
}
g.dec = gob.NewDecoder(&g.buf)
i := big.NewInt(0)
if err := g.dec.Decode(i); err != nil {
panic(err)
}
r := big.NewRat(3, 5)
if err := g.dec.Decode(r); err != nil {
panic(err)
}
t := time.Now()
if err := g.dec.Decode(&t); err != nil {
panic(err)
}
var d time.Duration
if err := g.dec.Decode(&d); err != nil {
panic(err)
}
return
}
func isBlobType(v interface{}) (bool, Type) {
switch v.(type) {
case []byte:
return true, Blob
case *big.Int:
return true, BigInt
case *big.Rat:
return true, BigRat
case time.Time:
return true, Time
case time.Duration:
return true, Duration
default:
return false, -1
}
}
func (g *gobCoder) encode(v interface{}) (b []byte, err error) {
g.mu.Lock()
defer g.mu.Unlock()
g.buf.Reset()
switch x := v.(type) {
case []byte:
return x, nil
case *big.Int:
err = g.enc.Encode(x)
case *big.Rat:
err = g.enc.Encode(x)
case time.Time:
err = g.enc.Encode(x)
case time.Duration:
err = g.enc.Encode(int64(x))
default:
panic("internal error 002")
}
b = g.buf.Bytes()
return
}
func (g *gobCoder) decode(b []byte, typ int) (v interface{}, err error) {
g.mu.Lock()
defer g.mu.Unlock()
g.buf.Reset()
g.buf.Write(b)
switch typ {
case qBlob:
return b, nil
case qBigInt:
x := big.NewInt(0)
err = g.dec.Decode(&x)
v = x
case qBigRat:
x := big.NewRat(1, 1)
err = g.dec.Decode(&x)
v = x
case qTime:
var x time.Time
err = g.dec.Decode(&x)
v = x
case qDuration:
var x int64
err = g.dec.Decode(&x)
v = time.Duration(x)
default:
panic("internal error 003")
}
return
}
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