codekingpro/portable-devtools

1// run2 3// Copyright 2021 The Go Authors. All rights reserved.4// Use of this source code is governed by a BSD-style5// license that can be found in the LICENSE file.6 7package main8 9import "io"10 11type Reader struct {12	buf []byte13}14type Token *[16]byte15 16func Read[T interface{ ~*[16]byte }](r *Reader) (t T, err error) {17	if n := len(t); len(r.buf) >= n {18		t = T(r.buf[:n])19		r.buf = r.buf[n:]20		return21	}22	err = io.EOF23	return24}25 26func main() {27	r := &Reader{buf: []byte("0123456789abcdef")}28	token, err := Read[Token](r)29	_, _ = token, err30}31