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errors.go
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errors.go
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package types
import (
"fmt"
"github.com/pkg/errors"
)
const RootCodeSpace = "tibc-sdk-go"
var (
ErrInternal = Register(RootCodeSpace, 1, "internal")
ErrChainConn = Register(RootCodeSpace, 2, "connection chain failed")
ErrGetLightClientState = Register(RootCodeSpace, 3, "failed to get light client state")
ErrGetBlockHeader = Register(RootCodeSpace, 4, "failed to get block header")
ErrUpdateClient = Register(RootCodeSpace, 5, "failed to update client")
ErrGetPackets = Register(RootCodeSpace, 6, "failed to get packets")
ErrGetCommitmentPacket = Register(RootCodeSpace, 7, "failed to get commitment packet")
ErrGetAckPacket = Register(RootCodeSpace, 8, "failed to get ack packet")
ErrGetReceiptPacket = Register(RootCodeSpace, 9, "failed to get receipt packet")
ErrGetProof = Register(RootCodeSpace, 10, "failed to get proof")
ErrGetLatestHeight = Register(RootCodeSpace, 11, "failed to get latest height")
ErrRecvPacket = Register(RootCodeSpace, 12, "failed to recv packet")
ErrNotProduced = Register(RootCodeSpace, 13, "failed to not produced")
ErrUnknownMsg = Register(RootCodeSpace, 14, "failed to unknown msg type")
ErrUnpackAny = Register(RootCodeSpace, 15, "failed to unpack any")
ErrGetLightClientConsensusState = Register(RootCodeSpace, 16, "failed to light consensus state")
ErrGetRelayer = Register(RootCodeSpace, 17, "failed to get relayer")
ErrGetAddress = Register(RootCodeSpace, 18, "failed to get address")
ErrPackAny = Register(RootCodeSpace, 19, "failed to pack any")
ErrGetUnreceivedPacket = Register(RootCodeSpace, 20, "failed to get unreceived packet")
ErrSendAckPacket = Register(RootCodeSpace, 21, "failed to send ack packet")
ErrSendCleanPacket = Register(RootCodeSpace, 22, "failed to send clean packet")
ErrRecvCleanPacket = Register(RootCodeSpace, 23, "failed to recv clean packet")
ErrNftTransfer = Register(RootCodeSpace, 24, "failed to send nft transfer ")
ErrInvalidConsensus = Register(RootCodeSpace, 25, "invalid consensus state")
ErrInvalidHeader = Register(RootCodeSpace, 26, "invalid consensus state")
ErrInvalidHeight = Register(RootCodeSpace, 27, "invalid height")
ErrInvalidAddress = Register(RootCodeSpace, 28, "invalid address")
ErrInvalidID = Register(RootCodeSpace, 29, "invalid identifier")
)
var usedCodes = map[string]*Error{}
func getUsed(codespace string, code uint32) *Error {
return usedCodes[errorID(codespace, code)]
}
func setUsed(err *Error) {
usedCodes[errorID(err.codeSpace, err.code)] = err
}
func errorID(codespace string, code uint32) string {
return fmt.Sprintf("%s:%d", codespace, code)
}
type IError interface {
error
Code() uint32
Codespace() string
}
type Error struct {
codeSpace string
code uint32
desc string
}
func (e Error) Codespace() string {
return e.codeSpace
}
func New(codeSpace string, code uint32, desc string) *Error {
return &Error{codeSpace: codeSpace, code: code, desc: desc}
}
func (e Error) Error() string {
return e.desc
}
func (e Error) Code() uint32 {
return e.code
}
func Register(codespace string, code uint32, description string) *Error {
if e := getUsed(codespace, code); e != nil {
panic(fmt.Sprintf("error with code %d is already registered: %q", code, e.desc))
}
err := New(codespace, code, description)
setUsed(err)
return err
}
type WrappedError struct {
// This error layer description.
msg string
// The underlying error that triggered this one.
parent error
}
func (e *WrappedError) Error() string {
return fmt.Sprintf("%s: %s", e.msg, e.parent.Error())
}
func (e *WrappedError) Cause() error {
return e.parent
}
// Is reports whether any error in e's chain matches a target.
func (e *WrappedError) Is(target error) bool {
if e == target {
return true
}
w := e.Cause()
for {
if w == target {
return true
}
x, ok := w.(causer)
if ok {
w = x.Cause()
}
if x == nil {
return false
}
}
}
// Unwrap implements the built-in errors.Unwrap
func (e *WrappedError) Unwrap() error {
return e.parent
}
// causer is an interface implemented by an error that supports wrapping. Use
// it to test if an error wraps another error instance.
type causer interface {
Cause() error
}
type unpacker interface {
Unpack() []error
}
func IErrorWrap(err IError, description string) IError {
if err == nil {
return nil
}
errMsg := fmt.Sprintf("[%s,%s]", err.Error(), description)
return &Error{
codeSpace: err.Codespace(),
code: err.Code(),
desc: errMsg,
}
}
func Wrap(err error, description string) error {
if err == nil {
return nil
}
// If this error does not carry the stacktrace information yet, attach
// one. This should be done only once per error at the lowest frame
// possible (most inner wrap).
if stackTrace(err) == nil {
err = errors.WithStack(err)
}
return &WrappedError{
parent: err,
msg: description,
}
}
// stackTrace returns the first found stack trace frame carried by given error
// or any wrapped error. It returns nil if no stack trace is found.
func stackTrace(err error) errors.StackTrace {
type stackTracer interface {
StackTrace() errors.StackTrace
}
for {
if st, ok := err.(stackTracer); ok {
return st.StackTrace()
}
if c, ok := err.(causer); ok {
err = c.Cause()
} else {
return nil
}
}
}
func Wrapf(err error, format string, args ...interface{}) error {
desc := fmt.Sprintf(format, args...)
return Wrap(err, desc)
}