async-rust 0.1.1

async rust examples
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// +build ignore

package main

import (
	"encoding/base64"
	"encoding/json"
	"fmt"

	"github.com/btwiuse/pretty"
)

func main() {
	str := "魑魅魍魉"
	buf := []byte(str)
	fmt.Println("str:", str)
	fmt.Println("str len:", len(str))
	fmt.Println("buf len:", len(buf))
	for i := 0; i <= len(buf); i++ {
		var raw json.RawMessage = buf[:i]
		rawbuf, _ := raw.MarshalJSON()
		rawstr := string(rawbuf)
		fmt.Printf("buf[:%d]: %q %q\n", i, string(buf[:i]), base64.StdEncoding.EncodeToString(buf[:i]))
		fmt.Printf("buf[:%d]: %q\n", i, rawstr)
		fmt.Printf("buf[:%d]: %s\n", i, pretty.JsonString(string(buf[:i])))
		//fmt.Printf("buf[:%d]: %q\n", i, js(raw))
		fmt.Printf("buf[:%d]: %q\n", i, pretty.JsonString(raw))
		fmt.Printf("buf[:%d]: %q\n", i, pretty.JsonString(pretty.JsonString(raw)))
	}
}

func js(v interface{}) string {
	var (
		b   []byte
		err error
	)

	switch v.(type) {
	case *json.RawMessage:
		b, err = v.(*json.RawMessage).MarshalJSON()
	case json.RawMessage:
		b, err = v.(json.RawMessage).MarshalJSON()
	default:
		b, err = json.Marshal(v)
	}

	if err != nil {
		panic(err)
	}

	return string(b)
}