mirror of
https://github.com/golang/go
synced 2024-11-23 08:00:05 -07:00
105 lines
1.6 KiB
Go
105 lines
1.6 KiB
Go
// Copyright 2012 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.
|
|
|
|
// Test method expressions with arguments.
|
|
|
|
package main
|
|
|
|
import "./method4a"
|
|
|
|
type T1 int
|
|
|
|
type T2 struct {
|
|
f int
|
|
}
|
|
|
|
type I1 interface {
|
|
Sum([]int, int) int
|
|
}
|
|
|
|
type I2 interface {
|
|
Sum(a []int, b int) int
|
|
}
|
|
|
|
func (i T1) Sum(a []int, b int) int {
|
|
r := int(i) + b
|
|
for _, v := range a {
|
|
r += v
|
|
}
|
|
return r
|
|
}
|
|
|
|
func (p *T2) Sum(a []int, b int) int {
|
|
r := p.f + b
|
|
for _, v := range a {
|
|
r += v
|
|
}
|
|
return r
|
|
}
|
|
|
|
func eq(v1, v2 int) {
|
|
if v1 != v2 {
|
|
panic(0)
|
|
}
|
|
}
|
|
|
|
func main() {
|
|
a := []int{1, 2, 3}
|
|
t1 := T1(4)
|
|
t2 := &T2{4}
|
|
|
|
eq(t1.Sum(a, 5), 15)
|
|
eq(t2.Sum(a, 6), 16)
|
|
|
|
eq(T1.Sum(t1, a, 7), 17)
|
|
eq((*T2).Sum(t2, a, 8), 18)
|
|
|
|
f1 := T1.Sum
|
|
eq(f1(t1, a, 9), 19)
|
|
f2 := (*T2).Sum
|
|
eq(f2(t2, a, 10), 20)
|
|
|
|
eq(I1.Sum(t1, a, 11), 21)
|
|
eq(I1.Sum(t2, a, 12), 22)
|
|
|
|
f3 := I1.Sum
|
|
eq(f3(t1, a, 13), 23)
|
|
eq(f3(t2, a, 14), 24)
|
|
|
|
eq(I2.Sum(t1, a, 15), 25)
|
|
eq(I2.Sum(t2, a, 16), 26)
|
|
|
|
f4 := I2.Sum
|
|
eq(f4(t1, a, 17), 27)
|
|
eq(f4(t2, a, 18), 28)
|
|
|
|
mt1 := method4a.T1(4)
|
|
mt2 := &method4a.T2{4}
|
|
|
|
eq(mt1.Sum(a, 30), 40)
|
|
eq(mt2.Sum(a, 31), 41)
|
|
|
|
eq(method4a.T1.Sum(mt1, a, 32), 42)
|
|
eq((*method4a.T2).Sum(mt2, a, 33), 43)
|
|
|
|
g1 := method4a.T1.Sum
|
|
eq(g1(mt1, a, 34), 44)
|
|
g2 := (*method4a.T2).Sum
|
|
eq(g2(mt2, a, 35), 45)
|
|
|
|
eq(method4a.I1.Sum(mt1, a, 36), 46)
|
|
eq(method4a.I1.Sum(mt2, a, 37), 47)
|
|
|
|
g3 := method4a.I1.Sum
|
|
eq(g3(mt1, a, 38), 48)
|
|
eq(g3(mt2, a, 39), 49)
|
|
|
|
eq(method4a.I2.Sum(mt1, a, 40), 50)
|
|
eq(method4a.I2.Sum(mt2, a, 41), 51)
|
|
|
|
g4 := method4a.I2.Sum
|
|
eq(g4(mt1, a, 42), 52)
|
|
eq(g4(mt2, a, 43), 53)
|
|
}
|