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error.go
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error.go
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// Copyright (c) 2021 The Decred developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package stdaddr
// ErrorKind identifies a kind of error.
type ErrorKind string
// These constants are used to identify a specific ErrorKind.
const (
// ErrUnsupportedAddress indicates that an address successfully decoded, but
// is not a supported/recognized type.
ErrUnsupportedAddress = ErrorKind("ErrUnsupportedAddress")
// ErrUnsupportedScriptVersion indicates that an address type does not
// support a given script version.
ErrUnsupportedScriptVersion = ErrorKind("ErrUnsupportedScriptVersion")
// ErrMalformedAddress indicates an address failed to decode.
ErrMalformedAddress = ErrorKind("ErrMalformedAddress")
// ErrMalformedAddressData indicates an address successfully decoded and is
// a recognized type, but the encoded data is not the expected length.
ErrMalformedAddressData = ErrorKind("ErrMalformedAddressData")
// ErrBadAddressChecksum indicates an address failed to decode due to an
// invalid checksum.
ErrBadAddressChecksum = ErrorKind("ErrBadAddressChecksum")
// ErrInvalidPubKey indicates that a serialized public key failed to
// parse.
ErrInvalidPubKey = ErrorKind("ErrInvalidPubKey")
// ErrInvalidPubKeyFormat indicates that a serialized public key parsed
// successfully, but is not one of the allowed formats.
ErrInvalidPubKeyFormat = ErrorKind("ErrInvalidPubKeyFormat")
// ErrInvalidHashLen indicates that either a public key hash or a script
// hash is not an allowed length.
ErrInvalidHashLen = ErrorKind("ErrInvalidHashLen")
)
// Error satisfies the error interface and prints human-readable errors.
func (e ErrorKind) Error() string {
return string(e)
}
// Error identifies an address-related error.
//
// It has full support for errors.Is and errors.As, so the caller can ascertain
// the specific reason for the error by checking the underlying error.
type Error struct {
Err error
Description string
}
// Error satisfies the error interface and prints human-readable errors.
func (e Error) Error() string {
return e.Description
}
// Unwrap returns the underlying wrapped error.
func (e Error) Unwrap() error {
return e.Err
}
// makeError creates an Error given a set of arguments.
func makeError(kind ErrorKind, desc string) Error {
return Error{Err: kind, Description: desc}
}