package core
import (
"fmt"
"math/big"
)
// 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
}
type UncleErr struct {
Message string
}
func (err *UncleErr) Error() string {
return err.Message
}
func UncleError(str string) error {
return &UncleErr{Message: str}
}
func IsUncleErr(err error) bool {
_, ok := err.(*UncleErr)
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 GasLimitErr struct {
Message string
Is, Max *big.Int
}
func IsGasLimitErr(err error) bool {
_, ok := err.(*GasLimitErr)
return ok
}
func (err *GasLimitErr) Error() string {
return err.Message
}
func GasLimitError(is, max *big.Int) *GasLimitErr {
return &GasLimitErr{Message: fmt.Sprintf("GasLimit error. Max %s, transaction would take it to %s", max, is), Is: is, Max: max}
}
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
}
type OutOfGasErr struct {
Message string
}
func OutOfGasError() *OutOfGasErr {
return &OutOfGasErr{Message: "Out of gas"}
}
func (self *OutOfGasErr) Error() string {
return self.Message
}
func IsOutOfGasErr(err error) bool {
_, ok := err.(*OutOfGasErr)
return ok
}
type TDError struct {
a, b *big.Int
}
func (self *TDError) Error() string {
return fmt.Sprintf("incoming chain has a lower or equal TD (%v <= %v)", self.a, self.b)
}
func IsTDError(e error) bool {
_, ok := e.(*TDError)
return ok
}
type KnownBlockError struct {
number *big.Int
hash []byte
}
func (self *KnownBlockError) Error() string {
return fmt.Sprintf("block %v already known (%x)", self.number, self.hash[0:4])
}
func IsKnownBlockErr(e error) bool {
_, ok := e.(*KnownBlockError)
return ok
}
