github.com/spotify/syslog-redirector-golang@v0.0.0-20140320174030-4859f03d829a/test/method4.dir/prog.go (about)

     1  // Copyright 2012 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  // Test method expressions with arguments.
     6  
     7  package main
     8  
     9  import "./method4a"
    10  
    11  type T1 int
    12  
    13  type T2 struct {
    14  	f int
    15  }
    16  
    17  type I1 interface {
    18  	Sum([]int, int) int
    19  }
    20  
    21  type I2 interface {
    22  	Sum(a []int, b int) int
    23  }
    24  
    25  func (i T1) Sum(a []int, b int) int {
    26  	r := int(i) + b
    27  	for _, v := range a {
    28  		r += v
    29  	}
    30  	return r
    31  }
    32  
    33  func (p *T2) Sum(a []int, b int) int {
    34  	r := p.f + b
    35  	for _, v := range a {
    36  		r += v
    37  	}
    38  	return r
    39  }
    40  
    41  func eq(v1, v2 int) {
    42  	if v1 != v2 {
    43  		panic(0)
    44  	}
    45  }
    46  
    47  func main() {
    48  	a := []int{1, 2, 3}
    49  	t1 := T1(4)
    50  	t2 := &T2{4}
    51  
    52  	eq(t1.Sum(a, 5), 15)
    53  	eq(t2.Sum(a, 6), 16)
    54  
    55  	eq(T1.Sum(t1, a, 7), 17)
    56  	eq((*T2).Sum(t2, a, 8), 18)
    57  
    58  	f1 := T1.Sum
    59  	eq(f1(t1, a, 9), 19)
    60  	f2 := (*T2).Sum
    61  	eq(f2(t2, a, 10), 20)
    62  
    63  	eq(I1.Sum(t1, a, 11), 21)
    64  	eq(I1.Sum(t2, a, 12), 22)
    65  
    66  	f3 := I1.Sum
    67  	eq(f3(t1, a, 13), 23)
    68  	eq(f3(t2, a, 14), 24)
    69  
    70  	eq(I2.Sum(t1, a, 15), 25)
    71  	eq(I2.Sum(t2, a, 16), 26)
    72  
    73  	f4 := I2.Sum
    74  	eq(f4(t1, a, 17), 27)
    75  	eq(f4(t2, a, 18), 28)
    76  	
    77  	mt1 := method4a.T1(4)
    78  	mt2 := &method4a.T2{4}
    79  
    80  	eq(mt1.Sum(a, 30), 40)
    81  	eq(mt2.Sum(a, 31), 41)
    82  
    83  	eq(method4a.T1.Sum(mt1, a, 32), 42)
    84  	eq((*method4a.T2).Sum(mt2, a, 33), 43)
    85  
    86  	g1 := method4a.T1.Sum
    87  	eq(g1(mt1, a, 34), 44)
    88  	g2 := (*method4a.T2).Sum
    89  	eq(g2(mt2, a, 35), 45)
    90  
    91  	eq(method4a.I1.Sum(mt1, a, 36), 46)
    92  	eq(method4a.I1.Sum(mt2, a, 37), 47)
    93  
    94  	g3 := method4a.I1.Sum
    95  	eq(g3(mt1, a, 38), 48)
    96  	eq(g3(mt2, a, 39), 49)
    97  
    98  	eq(method4a.I2.Sum(mt1, a, 40), 50)
    99  	eq(method4a.I2.Sum(mt2, a, 41), 51)
   100  
   101  	g4 := method4a.I2.Sum
   102  	eq(g4(mt1, a, 42), 52)
   103  	eq(g4(mt2, a, 43), 53)
   104  }