msg.go

package stake
​
import (
    "encoding/json"
​
    sdk "github.com/cosmos/cosmos-sdk/types"
    "github.com/cosmos/cosmos-sdk/wire"
    crypto "github.com/tendermint/go-crypto"
)
​
// name to idetify transaction types
const MsgType = "stake"
​
// XXX remove: think it makes more sense belonging with the Params so we can
// initialize at genesis - to allow for the same tests we should should make
// the ValidateBasic() function a return from an initializable function
// ValidateBasic(bondDenom string) function
const StakingToken = "steak"
​
//Verify interface at compile time
var _, _, _, _ sdk.Msg = &MsgDeclareCandidacy{}, &MsgEditCandidacy{}, &MsgDelegate{}, &MsgUnbond{}
​
var msgCdc = wire.NewCodec()
​
func init() {
    wire.RegisterCrypto(msgCdc)
}

//______________________________________________________________________
​
// MsgDeclareCandidacy - struct for unbonding transactions
type MsgDeclareCandidacy struct {
    Description
    CandidateAddr sdk.Address   `json:"address"`
    PubKey        crypto.PubKey `json:"pubkey"`
    Bond          sdk.Coin      `json:"bond"`
}
​
func NewMsgDeclareCandidacy(candidateAddr sdk.Address, pubkey crypto.PubKey,
    bond sdk.Coin, description Description) MsgDeclareCandidacy {
    return MsgDeclareCandidacy{
        Description:   description,
        CandidateAddr: candidateAddr,
        PubKey:        pubkey,
        Bond:          bond,
    }
}
​
//nolint
func (msg MsgDeclareCandidacy) Type() string              { return MsgType } //TODO update "stake/declarecandidacy"
func (msg MsgDeclareCandidacy) GetSigners() []sdk.Address { return []sdk.Address{msg.CandidateAddr} }
​
// get the bytes for the message signer to sign on
func (msg MsgDeclareCandidacy) GetSignBytes() []byte {
    return msgCdc.MustMarshalBinary(msg)
}
​
// quick validity check
func (msg MsgDeclareCandidacy) ValidateBasic() sdk.Error {
    if msg.CandidateAddr == nil {
        return ErrCandidateEmpty(DefaultCodespace)
    }
    if msg.Bond.Denom != StakingToken {
        return ErrBadBondingDenom(DefaultCodespace)
    }
    if msg.Bond.Amount <= 0 {
        return ErrBadBondingAmount(DefaultCodespace)
    }
    empty := Description{}
    if msg.Description == empty {
        return newError(DefaultCodespace, CodeInvalidInput, "description must be included")
    }
    return nil
}

//______________________________________________________________________
​
// MsgEditCandidacy - struct for editing a candidate
type MsgEditCandidacy struct {
    Description
    CandidateAddr sdk.Address `json:"address"`
}
...
//______________________________________________________________________
​
// MsgDelegate - struct for bonding transactions
type MsgDelegate struct {
    DelegatorAddr sdk.Address `json:"address"`
    CandidateAddr sdk.Address `json:"address"`
    Bond          sdk.Coin    `json:"bond"`
}
...
//______________________________________________________________________
​
// MsgUnbond - struct for unbonding transactions
type MsgUnbond struct {
    DelegatorAddr sdk.Address `json:"address"`
    CandidateAddr sdk.Address `json:"address"`
    Shares        string      `json:"shares"`
}
...