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Current Path: /opt/golang/1.17.2/test/typeparam

opt / golang / 1.17.2 / test / typeparam /

📁 ..
📄 absdiff.go(2.71 KB)
📄 adder.go(580 B)
📄 append.go(615 B)
📄 chans.go(8.46 KB)
📄 combine.go(1.56 KB)
📄 cons.go(2 KB)
📄 double.go(1.61 KB)
📄 fact.go(644 B)
📄 graph.go(5.73 KB)
📄 importtest.go(322 B)
📄 index.go(941 B)
📄 interfacearg.go(723 B)
📄 issue45547.go(476 B)
📄 issue45722.go(576 B)
📄 issue45738.go(295 B)
📄 list.go(2.56 KB)
📄 list2.go(15.11 KB)
📄 lockable.go(935 B)
📄 map.go(899 B)
📄 maps.go(5.93 KB)
📄 metrics.go(4.46 KB)
📄 min.go(757 B)
📄 ordered.go(2.21 KB)
📄 orderedmap.go(7.13 KB)
📄 pair.go(748 B)
📄 pragma.go(416 B)
📄 sets.go(5.71 KB)
📄 settable.go(2.77 KB)
📄 slices.go(8.13 KB)
📄 smallest.go(817 B)
📄 smoketest.go(996 B)
📄 stringable.go(863 B)
📄 stringer.go(1.57 KB)
📄 struct.go(862 B)
📄 sum.go(945 B)
📄 tparam1.go(1.04 KB)
📄 typelist.go(2.99 KB)
📄 value.go(1.47 KB)

Editing: value.go

// run -gcflags=-G=3

// 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 main

import "fmt"

type value[T any] struct {
	val T
}

func get[T2 any](v *value[T2]) T2 {
	return v.val
}

func set[T any](v *value[T], val T) {
	v.val = val
}

func (v *value[T2]) set(val T2) {
	v.val = val
}

func (v *value[T2]) get() T2 {
	return v.val
}

func main() {
	var v1 value[int]
	set(&v1, 1)
	if got, want := get(&v1), 1; got != want {
		panic(fmt.Sprintf("get() == %d, want %d", got, want))
	}

v1.set(2)
	if got, want := v1.get(), 2; got != want {
		panic(fmt.Sprintf("get() == %d, want %d", got, want))
	}

v1p := new(value[int])
	set(v1p, 3)
	if got, want := get(v1p), 3; got != want {
		panic(fmt.Sprintf("get() == %d, want %d", got, want))
	}

v1p.set(4)
	if got, want := v1p.get(), 4; got != want {
		panic(fmt.Sprintf("get() == %d, want %d", got, want))
	}

var v2 value[string]
	set(&v2, "a")
	if got, want := get(&v2), "a"; got != want {
		panic(fmt.Sprintf("get() == %q, want %q", got, want))
	}

v2.set("b")
	if got, want := get(&v2), "b"; got != want {
		panic(fmt.Sprintf("get() == %q, want %q", got, want))
	}

v2p := new(value[string])
	set(v2p, "c")
	if got, want := get(v2p), "c"; got != want {
		panic(fmt.Sprintf("get() == %d, want %d", got, want))
	}

v2p.set("d")
	if got, want := v2p.get(), "d"; got != want {
		panic(fmt.Sprintf("get() == %d, want %d", got, want))
	}
}

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Editing: value.go

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