GitHub - usk81/generic: flexible data type for Go (original) (raw)

Generic

flexible data type for Go

support: Go 1.12+

Install

standard go get:

go get -u github.com/usk81/generic/v2

Usage

encode/decode:

package main

import ( "encoding/json" "github.com/usk81/generic/v2" )

type User struct { Name String json:"name" Age generic.Int json:"age" }

var user1 User u1 := []byte({"name":"Daryl Dixon","age":"40"}) json.Unmarshal([]byte(u1), &user1) b, _ := json.Marshal(user1) Println(string(b)) // {"name":"Daryl Dixon","age":40}

var user2 User u2 := []byte({"name":"Rick Grimes"}) json.Unmarshal([]byte(u2), &user2) b, _ := json.Marshal(user2) Println(string(b)) // {"name":"Rick Grimes","age":null}

set:

package main

import ( "fmt" "github.com/usk81/generic" )

func main() { v := 1.0

var tb generic.Bool
tb.Set(v)
vb := tb.Weak()
fmt.Printf("%v, (%T)\n", vb, vb)
// true, (bool)

var tf generic.Float
tf.Set(v)
vf := tf.Weak()
fmt.Printf("%v, (%T)\n", vf, vf)
// 1, (float64)

var ti generic.Int
ti.Set(v)
vi := ti.Weak()
fmt.Printf("%v, (%T)\n", vi, vi)
// 1, (int64)

var ts generic.String
ts.Set(v)
vs := ts.Weak()
fmt.Printf("%v, (%T)\n", vs, vs)
// 1, (string)

var tt generic.Time
tt.Set(v)
vt := tt.Weak()
fmt.Printf("%v, (%T)\n", vt.UTC(), vt)
// 1970-01-01 09:00:01 +0900 JST, (time.Time)

var tu generic.Uint
tu.Set(v)
vu := tu.Weak()
fmt.Printf("%v, (%T)\n", vu, vu)
// 1, (uint64)

}

Benchmarks

Marshal

Bool

Float

Int

String (small)

String (Large)

Time

TimestampMS

TimestampNano

Timestamp

Uint

Licence

MIT

Author

Yusuke Komatsu