51 lines
735 B
Go
51 lines
735 B
Go
package main
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import (
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"fmt"
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"reflect"
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)
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func add(a, b int) int {
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return a + b
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}
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func main() {
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fn := func(a, b int) int {
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return a + b
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}
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var i int
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fn1 := func() {
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i++
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}
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fn2 := func() func() {
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return func() {
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println("closure", i)
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}
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}
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fns := []any{add, fn, fn1, fn2}
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for _, fn := range fns {
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v := reflect.ValueOf(fn)
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fmt.Println(v.Type())
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fmt.Println(v.Kind())
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if v.Kind() != reflect.Func {
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panic(fmt.Sprintf("not func: %T", fn))
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}
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t := v.Type()
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fmt.Println(t)
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fmt.Println(t.Kind())
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if t.Kind() != reflect.Func {
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panic(fmt.Sprintf("not func: %T", fn))
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}
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}
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v := reflect.ValueOf(T{})
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if v.Field(0).Kind() != reflect.Func {
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panic("must func")
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}
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}
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type T struct {
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fn func(int)
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}
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