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63 lines
705 B
Go
Executable File
63 lines
705 B
Go
Executable File
// simple_interface2.go
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package main
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import (
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"fmt"
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)
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type Simpler interface {
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Get() int
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Set(int)
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}
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type Simple struct {
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i int
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}
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func (p *Simple) Get() int {
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return p.i
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}
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func (p *Simple) Set(u int) {
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p.i = u
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}
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type RSimple struct {
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i int
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j int
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}
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func (p *RSimple) Get() int {
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return p.j
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}
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func (p *RSimple) Set(u int) {
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p.j = u
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}
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func fI(it Simpler) int {
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switch it.(type) {
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case *Simple:
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it.Set(5)
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return it.Get()
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case *RSimple:
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it.Set(50)
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return it.Get()
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default:
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return 99
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}
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return 0
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}
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func main() {
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var s Simple
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fmt.Println(fI(&s)) // &s is required because Get() is defined with a receiver type pointer
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var r RSimple
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fmt.Println(fI(&r))
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}
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/* Output:
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5
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50
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*/
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