-
-
Save rgaquino/33f30d5c840caa0a01f076c61d61242c to your computer and use it in GitHub Desktop.
Golang Reflection Example
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| package main | |
| import ( | |
| "fmt" | |
| "reflect" | |
| ) | |
| type Bar struct { | |
| Gender string `tag_name:"gender"` | |
| } | |
| type Foo struct { | |
| FirstName string `tag_name:"tag 1"` | |
| LastName string `tag_name:"tag 2"` | |
| Age int `tag_name:"tag 3"` | |
| Others *Bar `tag_name:"tag 4"` | |
| } | |
| func doReflection(f interface{}) { | |
| val := reflect.ValueOf(f).Elem() | |
| for i := 0; i < val.NumField(); i++ { | |
| valueField := val.Field(i) | |
| typeField := val.Type().Field(i) | |
| tag := typeField.Tag | |
| if valueField.Kind() == reflect.Ptr { | |
| fmt.Println("Found a pointer!") | |
| doReflection(valueField.Interface()) | |
| } | |
| fmt.Printf("Field Name: %s,\t Field Type: %v,\t Field Value: %v,\t Tag Value: %s\n", typeField.Name, typeField.Type, valueField.Interface(), tag.Get("tag_name")) | |
| } | |
| } | |
| func main() { | |
| f := &Foo{ | |
| FirstName: "Drew", | |
| LastName: "Olson", | |
| Age: 30, | |
| Others: &Bar{ | |
| Gender: "male", | |
| }, | |
| } | |
| doReflection(f) | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment