replace zxq.co/ripple/hanayo
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351
vendor/github.com/fatih/structs/structs_example_test.go
generated
vendored
Normal file
351
vendor/github.com/fatih/structs/structs_example_test.go
generated
vendored
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@@ -0,0 +1,351 @@
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package structs
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import (
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"fmt"
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"time"
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)
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func ExampleNew() {
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type Server struct {
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Name string
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ID int32
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Enabled bool
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}
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server := &Server{
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Name: "Arslan",
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ID: 123456,
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Enabled: true,
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}
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s := New(server)
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fmt.Printf("Name : %v\n", s.Name())
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fmt.Printf("Values : %v\n", s.Values())
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fmt.Printf("Value of ID : %v\n", s.Field("ID").Value())
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// Output:
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// Name : Server
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// Values : [Arslan 123456 true]
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// Value of ID : 123456
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}
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func ExampleMap() {
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type Server struct {
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Name string
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ID int32
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Enabled bool
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}
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s := &Server{
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Name: "Arslan",
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ID: 123456,
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Enabled: true,
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}
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m := Map(s)
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fmt.Printf("%#v\n", m["Name"])
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fmt.Printf("%#v\n", m["ID"])
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fmt.Printf("%#v\n", m["Enabled"])
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// Output:
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// "Arslan"
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// 123456
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// true
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}
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func ExampleMap_tags() {
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// Custom tags can change the map keys instead of using the fields name
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type Server struct {
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Name string `structs:"server_name"`
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ID int32 `structs:"server_id"`
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Enabled bool `structs:"enabled"`
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}
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s := &Server{
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Name: "Zeynep",
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ID: 789012,
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}
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m := Map(s)
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// access them by the custom tags defined above
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fmt.Printf("%#v\n", m["server_name"])
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fmt.Printf("%#v\n", m["server_id"])
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fmt.Printf("%#v\n", m["enabled"])
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// Output:
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// "Zeynep"
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// 789012
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// false
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}
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func ExampleMap_omitNested() {
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// By default field with struct types are processed too. We can stop
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// processing them via "omitnested" tag option.
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type Server struct {
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Name string `structs:"server_name"`
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ID int32 `structs:"server_id"`
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Time time.Time `structs:"time,omitnested"` // do not convert to map[string]interface{}
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}
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const shortForm = "2006-Jan-02"
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t, _ := time.Parse("2006-Jan-02", "2013-Feb-03")
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s := &Server{
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Name: "Zeynep",
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ID: 789012,
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Time: t,
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}
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m := Map(s)
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// access them by the custom tags defined above
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fmt.Printf("%v\n", m["server_name"])
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fmt.Printf("%v\n", m["server_id"])
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fmt.Printf("%v\n", m["time"].(time.Time))
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// Output:
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// Zeynep
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// 789012
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// 2013-02-03 00:00:00 +0000 UTC
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}
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func ExampleMap_omitEmpty() {
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// By default field with struct types of zero values are processed too. We
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// can stop processing them via "omitempty" tag option.
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type Server struct {
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Name string `structs:",omitempty"`
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ID int32 `structs:"server_id,omitempty"`
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Location string
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}
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// Only add location
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s := &Server{
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Location: "Tokyo",
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}
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m := Map(s)
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// map contains only the Location field
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fmt.Printf("%v\n", m)
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// Output:
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// map[Location:Tokyo]
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}
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func ExampleValues() {
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type Server struct {
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Name string
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ID int32
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Enabled bool
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}
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s := &Server{
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Name: "Fatih",
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ID: 135790,
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Enabled: false,
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}
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m := Values(s)
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fmt.Printf("Values: %+v\n", m)
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// Output:
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// Values: [Fatih 135790 false]
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}
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func ExampleValues_omitEmpty() {
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// By default field with struct types of zero values are processed too. We
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// can stop processing them via "omitempty" tag option.
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type Server struct {
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Name string `structs:",omitempty"`
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ID int32 `structs:"server_id,omitempty"`
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Location string
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}
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// Only add location
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s := &Server{
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Location: "Ankara",
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}
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m := Values(s)
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// values contains only the Location field
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fmt.Printf("Values: %+v\n", m)
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// Output:
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// Values: [Ankara]
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}
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func ExampleValues_tags() {
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type Location struct {
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City string
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Country string
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}
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type Server struct {
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Name string
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ID int32
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Enabled bool
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Location Location `structs:"-"` // values from location are not included anymore
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}
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s := &Server{
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Name: "Fatih",
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ID: 135790,
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Enabled: false,
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Location: Location{City: "Ankara", Country: "Turkey"},
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}
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// Let get all values from the struct s. Note that we don't include values
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// from the Location field
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m := Values(s)
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fmt.Printf("Values: %+v\n", m)
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// Output:
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// Values: [Fatih 135790 false]
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}
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func ExampleFields() {
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type Access struct {
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Name string
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LastAccessed time.Time
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Number int
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}
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s := &Access{
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Name: "Fatih",
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LastAccessed: time.Now(),
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Number: 1234567,
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}
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fields := Fields(s)
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for i, field := range fields {
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fmt.Printf("[%d] %+v\n", i, field.Name())
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}
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// Output:
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// [0] Name
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// [1] LastAccessed
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// [2] Number
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}
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func ExampleFields_nested() {
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type Person struct {
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Name string
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Number int
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}
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type Access struct {
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Person Person
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HasPermission bool
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LastAccessed time.Time
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}
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s := &Access{
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Person: Person{Name: "fatih", Number: 1234567},
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LastAccessed: time.Now(),
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HasPermission: true,
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}
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// Let's get all fields from the struct s.
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fields := Fields(s)
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for _, field := range fields {
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if field.Name() == "Person" {
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fmt.Printf("Access.Person.Name: %+v\n", field.Field("Name").Value())
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}
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}
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// Output:
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// Access.Person.Name: fatih
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}
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func ExampleField() {
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type Person struct {
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Name string
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Number int
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}
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type Access struct {
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Person Person
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HasPermission bool
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LastAccessed time.Time
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}
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access := &Access{
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Person: Person{Name: "fatih", Number: 1234567},
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LastAccessed: time.Now(),
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HasPermission: true,
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}
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// Create a new Struct type
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s := New(access)
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// Get the Field type for "Person" field
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p := s.Field("Person")
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// Get the underlying "Name field" and print the value of it
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name := p.Field("Name")
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fmt.Printf("Value of Person.Access.Name: %+v\n", name.Value())
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// Output:
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// Value of Person.Access.Name: fatih
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}
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func ExampleIsZero() {
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type Server struct {
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Name string
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ID int32
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Enabled bool
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}
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// Nothing is initalized
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a := &Server{}
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isZeroA := IsZero(a)
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// Name and Enabled is initialized, but not ID
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b := &Server{
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Name: "Golang",
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Enabled: true,
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}
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isZeroB := IsZero(b)
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fmt.Printf("%#v\n", isZeroA)
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fmt.Printf("%#v\n", isZeroB)
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// Output:
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// true
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// false
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}
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func ExampleHasZero() {
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// Let's define an Access struct. Note that the "Enabled" field is not
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// going to be checked because we added the "structs" tag to the field.
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type Access struct {
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Name string
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LastAccessed time.Time
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Number int
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Enabled bool `structs:"-"`
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}
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// Name and Number is not initialized.
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a := &Access{
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LastAccessed: time.Now(),
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}
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hasZeroA := HasZero(a)
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// Name and Number is initialized.
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b := &Access{
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Name: "Fatih",
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LastAccessed: time.Now(),
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Number: 12345,
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}
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hasZeroB := HasZero(b)
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fmt.Printf("%#v\n", hasZeroA)
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fmt.Printf("%#v\n", hasZeroB)
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// Output:
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// true
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// false
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}
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