package main
import (
"fmt"
"reflect"
)
type S struct {
FirstName string `my_tag:"first-name"`
lastName string
Age int `json:"age",xml:"AgeXml`
}
func describeStructSimple(rv reflect.Value) {
structType := rv.Type()
for i := 0; i < rv.NumField(); i++ {
v := rv.Field(i)
structField := structType.Field(i)
name := structField.Name
typ := structField.Type
tag := structField.Tag
jsonTag := tag.Get("json")
isExported := structField.PkgPath == ""
if isExported {
fmt.Printf("name: '%s',\ttype: '%s', value: %v,\ttag: '%s',\tjson tag: '%s'\n", name, typ, v.Interface(), tag, jsonTag)
} else {
fmt.Printf("name: '%s',\ttype: '%s',\tvalue: not accessible\n", name, v.Type().Name())
}
}
}
func main() {
s := S{
FirstName: "John",
lastName: "Doe",
Age: 27,
}
describeStructSimple(reflect.ValueOf(s))
}
