main.go

     1  // Copyright 2021 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package main
     6  
     7  import (
     8  	"./a"
     9  	"fmt"
    10  )
    11  
    12  func main() {
    13  	var v1 a.Value[int]
    14  
    15  	a.Set(&v1, 1)
    16  	if got, want := a.Get(&v1), 1; got != want {
    17  		panic(fmt.Sprintf("Get() == %d, want %d", got, want))
    18  	}
    19  	v1.Set(2)
    20  	if got, want := v1.Get(), 2; got != want {
    21  		panic(fmt.Sprintf("Get() == %d, want %d", got, want))
    22  	}
    23  	v1p := new(a.Value[int])
    24  	a.Set(v1p, 3)
    25  	if got, want := a.Get(v1p), 3; got != want {
    26  		panic(fmt.Sprintf("Get() == %d, want %d", got, want))
    27  	}
    28  
    29  	v1p.Set(4)
    30  	if got, want := v1p.Get(), 4; got != want {
    31  		panic(fmt.Sprintf("Get() == %d, want %d", got, want))
    32  	}
    33  
    34  	var v2 a.Value[string]
    35  	a.Set(&v2, "a")
    36  	if got, want := a.Get(&v2), "a"; got != want {
    37  		panic(fmt.Sprintf("Get() == %q, want %q", got, want))
    38  	}
    39  
    40  	v2.Set("b")
    41  	if got, want := a.Get(&v2), "b"; got != want {
    42  		panic(fmt.Sprintf("Get() == %q, want %q", got, want))
    43  	}
    44  
    45  	v2p := new(a.Value[string])
    46  	a.Set(v2p, "c")
    47  	if got, want := a.Get(v2p), "c"; got != want {
    48  		panic(fmt.Sprintf("Get() == %d, want %d", got, want))
    49  	}
    50  
    51  	v2p.Set("d")
    52  	if got, want := v2p.Get(), "d"; got != want {
    53  		panic(fmt.Sprintf("Get() == %d, want %d", got, want))
    54  	}
    55  }
    56
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