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package main
type Option interface {
apply(*T)
}
type T struct {
s string
}
type opt struct {
name string
}
func (o *opt) apply(t *T) {
println(o.name)
}
func BuildOptions() []Option {
return []Option{
&opt{"opt1"},
&opt{"opt2"},
}
}
func NewT(name string, options ...Option) *T {
t := &T{name}
for _, opt := range options {
opt.apply(t)
}
return t
}
func main() {
t := NewT("hello", BuildOptions()...)
println(t.s)
}
// Output:
// opt1
// opt2
// hello
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