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bl/common/utils/go-jsonrpc/errors.go

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package jsonrpc
import (
"encoding/json"
"errors"
"reflect"
)
const eTempWSError = -1111111
type RPCConnectionError struct {
err error
}
func (e *RPCConnectionError) Error() string {
if e.err != nil {
return e.err.Error()
}
return "RPCConnectionError"
}
func (e *RPCConnectionError) Unwrap() error {
if e.err != nil {
return e.err
}
return errors.New("RPCConnectionError")
}
type Errors struct {
byType map[reflect.Type]ErrorCode
byCode map[ErrorCode]reflect.Type
}
type ErrorCode int
const FirstUserCode = 2
func NewErrors() Errors {
return Errors{
byType: map[reflect.Type]ErrorCode{},
byCode: map[ErrorCode]reflect.Type{
-1111111: reflect.TypeOf(&RPCConnectionError{}),
},
}
}
func (e *Errors) Register(c ErrorCode, typ interface{}) {
rt := reflect.TypeOf(typ).Elem()
if !rt.Implements(errorType) {
panic("can't register non-error types")
}
e.byType[rt] = c
e.byCode[c] = rt
}
type marshalable interface {
json.Marshaler
json.Unmarshaler
}
type RPCErrorCodec interface {
FromJSONRPCError(JSONRPCError) error
ToJSONRPCError() (JSONRPCError, error)
}