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|
package structhash
import (
"crypto/md5"
"crypto/sha1"
"fmt"
)
func ExampleHash() {
type Person struct {
Name string
Age int
Emails []string
Extra map[string]string
Spouse *Person
}
bill := &Person{
Name: "Bill",
Age: 24,
Emails: []string{"bob@foo.org", "bob@bar.org"},
Extra: map[string]string{
"facebook": "Bob42",
},
}
bob := &Person{
Name: "Bob",
Age: 42,
Emails: []string{"bob@foo.org", "bob@bar.org"},
Extra: map[string]string{
"facebook": "Bob42",
},
Spouse: bill,
}
hash, err := Hash(bob, 1)
if err != nil {
panic(err)
}
fmt.Printf("%s", hash)
// Output:
// v1_6a50d73f3bd0b9ebd001a0b610f387f0
}
func ExampleHash_tags() {
type Person struct {
Ignored string `hash:"-"`
NewName string `hash:"name:OldName version:1"`
Age int `hash:"version:1"`
Emails []string `hash:"version:1"`
Extra map[string]string `hash:"version:1 lastversion:2"`
Spouse *Person `hash:"version:2"`
}
bill := &Person{
NewName: "Bill",
Age: 24,
Emails: []string{"bob@foo.org", "bob@bar.org"},
Extra: map[string]string{
"facebook": "Bob42",
},
}
bob := &Person{
NewName: "Bob",
Age: 42,
Emails: []string{"bob@foo.org", "bob@bar.org"},
Extra: map[string]string{
"facebook": "Bob42",
},
Spouse: bill,
}
hashV1, err := Hash(bob, 1)
if err != nil {
panic(err)
}
hashV2, err := Hash(bob, 2)
if err != nil {
panic(err)
}
hashV3, err := Hash(bob, 3)
if err != nil {
panic(err)
}
fmt.Printf("%s\n", hashV1)
fmt.Printf("%s\n", hashV2)
fmt.Printf("%s\n", hashV3)
// Output:
// v1_45d8a54c5f5fd287f197b26d128882cd
// v2_babd7618f29036f5564816bee6c8a037
// v3_012b06239f942549772c9139d66c121e
}
func ExampleDump() {
type Person struct {
Name string
Age int
Emails []string
Extra map[string]string
Spouse *Person
}
bill := &Person{
Name: "Bill",
Age: 24,
Emails: []string{"bob@foo.org", "bob@bar.org"},
Extra: map[string]string{
"facebook": "Bob42",
},
}
bob := &Person{
Name: "Bob",
Age: 42,
Emails: []string{"bob@foo.org", "bob@bar.org"},
Extra: map[string]string{
"facebook": "Bob42",
},
Spouse: bill,
}
fmt.Printf("md5: %x\n", md5.Sum(Dump(bob, 1)))
fmt.Printf("sha1: %x\n", sha1.Sum(Dump(bob, 1)))
// Output:
// md5: 6a50d73f3bd0b9ebd001a0b610f387f0
// sha1: c45f097a37366eaaf6ffbc7357c2272cd8fb64f6
}
func ExampleVersion() {
// A hash string gotten from Hash(). Returns the version as an int.
i := Version("v1_55743877f3ffd5fc834e97bc43a6e7bd")
fmt.Printf("%d", i)
// Output:
// 1
}
func ExampleVersion_errors() {
// A hash string gotten from Hash(). Returns -1 on error.
i := Version("va_55743877f3ffd5fc834e97bc43a6e7bd")
fmt.Printf("%d", i)
// Output:
// -1
}
|
