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package ethchain
import (
"fmt"
)
// Parent error. In case a parent is unknown this error will be thrown
// by the block manager
type ParentErr struct {
Message string
}
func (err *ParentErr) Error() string {
return err.Message
}
func ParentError(hash []byte) error {
return &ParentErr{Message: fmt.Sprintf("Block's parent unkown %x", hash)}
}
func IsParentErr(err error) bool {
_, ok := err.(*ParentErr)
return ok
}
// Block validation error. If any validation fails, this error will be thrown
type ValidationErr struct {
Message string
}
func (err *ValidationErr) Error() string {
return err.Message
}
func ValidationError(format string, v ...interface{}) *ValidationErr {
return &ValidationErr{Message: fmt.Sprintf(format, v...)}
}
func IsValidationErr(err error) bool {
_, ok := err.(*ValidationErr)
return ok
}
type NonceErr struct {
Message string
Is, Exp uint64
}
func (err *NonceErr) Error() string {
return err.Message
}
func NonceError(is, exp uint64) *NonceErr {
return &NonceErr{Message: fmt.Sprintf("Nonce err. Is %d, expected %d", is, exp), Is: is, Exp: exp}
}
func IsNonceErr(err error) bool {
_, ok := err.(*NonceErr)
return ok
}
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