/
error.go
72 lines (57 loc) · 1.22 KB
/
error.go
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package redis
type ErrorFlag uint8
const (
ErrorRedis ErrorFlag = iota
ErrorConnection
ErrorLoading
ErrorAuth
ErrorParse
ErrorInvalidReply
ErrorTimeout
lenErrorFlags = 8
)
type Error struct {
msg string
flags_ [lenErrorFlags]bool
}
// Create a new Error.
func newError(msg string, flags ...ErrorFlag) *Error {
flags_ := [lenErrorFlags]bool{}
for _, f := range flags {
flags_[f] = true
}
err := &Error{
msg: msg,
flags_: flags_,
}
return err
}
// Create a new Error with flags of the given error.
func newErrorExt(msg string, err *Error, flags ...ErrorFlag) *Error {
return newError(msg, append(err.flags(), flags...)...)
}
// Return a string representation of the error.
func (e *Error) Error() string {
return "redis: " + e.msg
}
// Return true, if any of the given error flags is set in the error, otherwise false.
func (e *Error) Test(flags ...ErrorFlag) bool {
if len(flags) < 1 {
panic("redis: invalid number of parameters")
}
for _, f := range flags {
if e.flags_[f] {
return true
}
}
return false
}
// Return error flags of the error.
func (e *Error) flags() (errFlags []ErrorFlag) {
for i, f := range e.flags_ {
if f {
errFlags = append(errFlags, ErrorFlag(i))
}
}
return
}