1 // $G $D/$F.go && $L $F.$A && ./$A.out
3 // Copyright 2010 The Go Authors. All rights reserved.
4 // Use of this source code is governed by a BSD-style
5 // license that can be found in the LICENSE file.
9 func sum(args ...int) int {
11 for _, v := range args {
17 func sumC(args ...int) int {
18 return func() int { return sum(args) } ()
22 var sumD = func(args ...int) int { return sum(args) }
24 var sumE = func() func(...int) int { return func(args ...int) int { return sum(args) } } ()
26 var sumF = func(args ...int) func() int { return func() int { return sum(args) } }
29 func sumA(args []int) int {
31 for _, v := range args {
37 func sum2(args ...int) int { return 2 * sum(args) }
39 func sum3(args ...int) int { return 3 * sumA(args) }
41 func intersum(args ...interface{}) int {
43 for _, v := range args {
51 func ln(args ...T) int { return len(args) }
53 func ln2(args ...T) int { return 2 * ln(args) }
55 func (*T) Sum(args ...int) int {
64 if x := sum(1, 2, 3); x != 6 {
67 if x := sum(); x != 0 {
70 if x := sum(10); x != 10 {
73 if x := sum(1, 8); x != 9 {
76 if x := sumC(4, 5, 6); x != 15 {
80 if x := sumD(4, 5, 7); x != 16 {
83 if x := sumE(4, 5, 8); x != 17 {
86 if x := sumF(4, 5, 9)(); x != 18 {
90 if x := sum2(1, 2, 3); x != 2*6 {
93 if x := sum2(); x != 2*0 {
96 if x := sum2(10); x != 2*10 {
99 if x := sum2(1, 8); x != 2*9 {
102 if x := sum3(1, 2, 3); x != 3*6 {
105 if x := sum3(); x != 3*0 {
108 if x := sum3(10); x != 3*10 {
111 if x := sum3(1, 8); x != 3*9 {
114 if x := intersum(1, 2, 3); x != 6 {
115 panicln("intersum 6", x)
117 if x := intersum(); x != 0 {
118 panicln("intersum 0", x)
120 if x := intersum(10); x != 10 {
121 panicln("intersum 10", x)
123 if x := intersum(1, 8); x != 9 {
124 panicln("intersum 9", x)
127 if x := ln(nil, nil, nil); x != 3 {
130 if x := ln([]T{}); x != 1 {
133 if x := ln2(nil, nil, nil); x != 2*3 {
136 if x := ln2([]T{}); x != 2*1 {
139 if x := ((*T)(nil)).Sum(1,3,5,7); x != 16 {
140 panicln("(*T)(nil).Sum", x)
142 if x := (*T).Sum(nil, 1, 3, 5, 6); x != 15 {
143 panicln("(*T).Sum", x)
145 if x := (&U{}).Sum(1,3,5,5); x != 14 {
146 panicln("(&U{}).Sum", x)
149 if x := u.Sum(1,3,5,4); x != 13 {
152 if x := (&u).Sum(1,3,5,3); x != 12 {
153 panicln("(&u).Sum", x)
155 var i interface { Sum(...int) int } = &u
156 if x := i.Sum(2,3,5,7); x != 17 {
157 panicln("i(=&u).Sum", x)
160 if x := i.Sum(2,3,5,6); x != 16 {
161 panicln("i(=u).Sum", x)
163 /* TODO(rsc): Enable once nested method expressions work.
164 if x := (*U).Sum(&U{}, 1, 3, 5, 2); x != 11 {
165 panicln("(*U).Sum", x)
167 if x := U.Sum(U{}, 1, 3, 5, 1); x != 10 {