func ExampleFlag() {
// we define our flags
var (
BadInput = utils.New("BadInput", 1)
NotAuthorized = utils.New("NotAuthorized", 2)
InternalError = utils.New("InternalError", 3)
// aggregat of flags
UserError = utils.Join("UserError", BadInput, NotAuthorized)
)
// error flagged
type MyError struct {
flag utils.Flag
Msg string
}
// MyError with flag BadInput
match := MyError{flag: BadInput, Msg: "json wanted"}
// MyError with flag InternalError
dontmatch := MyError{flag: InternalError, Msg: "server error"}
// will print
if utils.Intersect(match.flag, UserError) {
fmt.Printf("user error happened '[%s] %s'\n",
match.flag.String(), match.Msg)
}
// will not print
if utils.Intersect(dontmatch.flag, UserError) {
fmt.Printf("user error happened '[%s] %s'\n",
dontmatch.flag.String(), dontmatch.Msg)
}
// Output:
// user error happened '[BadInput] json wanted'
}
func (u *ErrorChecker) CheckFlag(element string, mask ParserError) bool {
if index := u.findElement(element); index == -1 {
return utils.Intersect(u.defaultErrorFlag, mask.Flag())
} else {
return utils.Intersect(u.elementErrors[index].flag, mask.Flag())
}
return false
}
func ExampleCounter() {
var c utils.Counter = 0
var (
BadInput = utils.InitFlag(&c, "BadInput")
NotAuthorized = utils.InitFlag(&c, "NotAuthorized")
InternalError = utils.InitFlag(&c, "InternalError")
)
if !utils.Intersect(BadInput, NotAuthorized) && !utils.Intersect(NotAuthorized, InternalError) && !utils.Intersect(InternalError, BadInput) {
fmt.Printf("None of them match!")
}
// Output:
// None of them match!
}
func (s Error) ErrorWithCode(f utils.Flag) utils.ErrorFlagged {
if utils.Intersect(f, s.flag) {
return s
}
return nil
}