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errors.go
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/
errors.go
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package lang
import (
"errors"
"fmt"
"runtime"
"github.com/maritimusj/centrum/synchronized"
)
var (
errMap = map[string]error{}
errStrMap = map[int]map[ErrIndex]string{}
)
type ErrIndex int
func (index ErrIndex) Str(params ...interface{}) string {
return ErrorStr(index, params...)
}
func (index ErrIndex) Error(params ...interface{}) error {
return Error(index, params...)
}
const (
Ok ErrIndex = iota
ErrUnknown
ErrUnknownLang
ErrInternal
ErrDeviceNotExists
ErrDeviceNotConnected
)
func ErrorStr(index ErrIndex, params ...interface{}) string {
str := <-synchronized.Do("error.str", func() interface{} {
var str string
if region, ok := errStrMap[regionIndex]; ok {
if str, ok = region[index]; !ok {
str = region[ErrUnknown]
}
} else {
str = region[ErrUnknownLang]
}
return str
})
return str.(string)
}
func Error(index ErrIndex, params ...interface{}) error {
err := <-synchronized.Do("error.str", func() interface{} {
var str string
if region, ok := errStrMap[regionIndex]; ok {
if str, ok = region[index]; !ok {
str = region[ErrUnknown]
}
} else {
str = region[ErrUnknownLang]
}
errStr := fmt.Sprintf(str, params...)
if err, ok := errMap[errStr]; ok {
return err
}
err := errors.New(errStr)
errMap[errStr] = err
return err
})
return err.(error)
}
func InternalError(err error) error {
_, file, line, _ := runtime.Caller(1)
return Error(ErrInternal, err, file, line)
}