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multi_address.go
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multi_address.go
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// Go Substrate RPC Client (GSRPC) provides APIs and types around Polkadot and any Substrate-based chain RPC calls
//
// Copyright 2019 Centrifuge GmbH
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package types
import (
"github.com/centrifuge/go-substrate-rpc-client/v4/scale"
"github.com/centrifuge/go-substrate-rpc-client/v4/types/codec"
)
type MultiAddress struct {
IsID bool
AsID AccountID
IsIndex bool
AsIndex AccountIndex
IsRaw bool
AsRaw []byte
IsAddress32 bool
AsAddress32 [32]byte
IsAddress20 bool
AsAddress20 [20]byte
}
// NewMultiAddressFromAccountID creates an Address from the given AccountID (public key)
func NewMultiAddressFromAccountID(b []byte) (MultiAddress, error) {
accountID, err := NewAccountID(b)
if err != nil {
return MultiAddress{}, err
}
return MultiAddress{
IsID: true,
AsID: *accountID,
}, nil
}
// NewMultiAddressFromHexAccountID creates an Address from the given hex string that contains an AccountID (public key)
func NewMultiAddressFromHexAccountID(str string) (MultiAddress, error) {
b, err := codec.HexDecodeString(str)
if err != nil {
return MultiAddress{}, err
}
return NewMultiAddressFromAccountID(b)
}
func (m MultiAddress) Encode(encoder scale.Encoder) error {
var err error
switch {
case m.IsID:
if err = encoder.PushByte(0); err != nil {
return err
}
return encoder.Encode(m.AsID)
case m.IsIndex:
if err = encoder.PushByte(1); err != nil {
return err
}
return encoder.Encode(m.AsIndex)
case m.IsRaw:
if err = encoder.PushByte(2); err != nil {
return err
}
return encoder.Encode(m.AsRaw)
case m.IsAddress32:
if err = encoder.PushByte(3); err != nil {
return err
}
return encoder.Encode(m.AsAddress32)
case m.IsAddress20:
if err = encoder.PushByte(4); err != nil {
return err
}
return encoder.Encode(m.AsAddress20)
}
return nil
}
func (m *MultiAddress) Decode(decoder scale.Decoder) error {
b, err := decoder.ReadOneByte()
if err != nil {
return err
}
switch b {
case 0:
m.IsID = true
return decoder.Decode(&m.AsID)
case 1:
m.IsIndex = true
return decoder.Decode(&m.AsIndex)
case 2:
m.IsRaw = true
return decoder.Decode(&m.AsRaw)
case 3:
m.IsAddress32 = true
return decoder.Decode(&m.AsAddress32)
case 4:
m.IsAddress20 = true
return decoder.Decode(&m.AsAddress20)
}
return nil
}