| // Copyright 2021 The Go 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 a | |
| import ( | |
| "math/rand" | |
| ) | |
| type Integer interface { | |
| ~int | ~int8 | ~int16 | ~int32 | ~int64 | | |
| ~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr | |
| } | |
| type Builder[T Integer] struct{} | |
| func (r Builder[T]) New() T { | |
| return T(rand.Int()) | |
| } | |
| var IntBuilder = Builder[int]{} | |
| func BuildInt() int { | |
| return IntBuilder.New() | |
| } |