58 lines
983 B
Go
58 lines
983 B
Go
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package main
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import "reflect"
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type Person struct {
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Name string
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Profile Profile
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}
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type Profile struct {
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Age int
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City string
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}
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func walk(x interface{}, fn func(input string)) {
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val := getValue(x)
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walkValue := func(value reflect.Value) {
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walk(value.Interface(), fn)
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}
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switch val.Kind() {
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case reflect.String:
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fn(val.String())
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case reflect.Struct:
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for i := 0; i < val.NumField(); i++ {
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walkValue(val.Field(i))
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}
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case reflect.Slice, reflect.Array:
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for i := 0; i < val.Len(); i++ {
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walkValue(val.Index(i))
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}
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case reflect.Map:
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for _, key := range val.MapKeys() {
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walkValue(val.MapIndex(key))
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}
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case reflect.Chan:
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for v, ok := val.Recv(); ok; v, ok = val.Recv() {
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walkValue(v)
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}
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case reflect.Func:
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valFnResult := val.Call(nil)
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for _, res := range valFnResult {
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walkValue(res)
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}
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}
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}
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func getValue(x interface{}) reflect.Value {
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val := reflect.ValueOf(x)
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if val.Kind() == reflect.Ptr {
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val = val.Elem()
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}
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return val
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}
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