go get github.com/chai2010/errorsgo run hello.go
package main
import (
"fmt"
"github.com/chai2010/errors"
)
var (
e0 = errors.New("err:init0")
e1 error
e2 error
)
func init() {
e1 = errors.New("err:init1")
}
func init() {
e2 = errors.New("err:init2")
}
func main() {
var e3 = errors.New("err:main3")
var e4 = func() error {
return errors.New("err:main4")
}()
var e5 = errors.Wrap(e1, "err:main5")
var e6 = errors.Wrap(e5, "err:main6")
var e7 = errors.Wrap(e6, "err:main7")
fmt.Println(e0, e0.(errors.Error).Caller())
fmt.Println(e1, e1.(errors.Error).Caller())
fmt.Println(e2, e2.(errors.Error).Caller())
fmt.Println(e3, e3.(errors.Error).Caller())
fmt.Println(e4, e4.(errors.Error).Caller())
fmt.Println(e5, e5.(errors.Error).Caller())
fmt.Println(e6, e6.(errors.Error).Caller())
for i, e := range e7.(errors.Error).Wraped() {
fmt.Printf("err7: wraped(%d): %v\n", i, e)
}
fmt.Println("err7:", e7.(fmt.Stringer).String())
}Output:
err:init0 [{main.init hello.go 16}]
err:init1 [{main.init.1 hello.go 22} {main.init hello.go 51}]
err:init2 [{main.init.2 hello.go 26} {main.init hello.go 51}]
err:main3 [{main.main hello.go 30}]
err:main4 [{main.main.func1 hello.go 32} {main.main hello.go 33}]
err:main5 -> {err:init1} [{main.main hello.go 34}]
err:main6 -> {err:main5 -> {err:init1}} [{main.main hello.go 35}]
err7: wraped(0): err:main6 -> {err:main5 -> {err:init1}}
err7: wraped(1): err:main5 -> {err:init1}
err7: wraped(2): err:init1
err7: {
"Code": 0,
"Error": "err:main7 -> {err:main6 -> {err:main5 -> {err:init1}}}",
"Caller": [
{
"FuncName": "main.main",
"FileName": "hello.go",
"FileLine": 36
}
],
"Wraped": [
{
"Code": 0,
"Error": "err:main6 -> {err:main5 -> {err:init1}}",
"Caller": [
{
"FuncName": "main.main",
"FileName": "hello.go",
"FileLine": 35
}
]
},
{
"Code": 0,
"Error": "err:main5 -> {err:init1}",
"Caller": [
{
"FuncName": "main.main",
"FileName": "hello.go",
"FileLine": 34
}
]
},
{
"Code": 0,
"Error": "err:init1",
"Caller": [
{
"FuncName": "main.init.1",
"FileName": "hello.go",
"FileLine": 22
},
{
"FuncName": "main.init",
"FileName": "hello.go",
"FileLine": 51
}
]
}
]
}
Report bugs to chaishushan@gmail.com.
Thanks!