github.com/igggame/nebulas-go@v2.1.0+incompatible/core/transaction_dip_payload.go (about)

     1  // Copyright (C) 2017 go-nebulas authors
     2  //
     3  // This file is part of the go-nebulas library.
     4  //
     5  // the go-nebulas library is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // the go-nebulas library is distributed in the hope that it will be useful,
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    13  // GNU General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU General Public License
    16  // along with the go-nebulas library.  If not, see <http://www.gnu.org/licenses/>.
    17  //
    18  
    19  package core
    20  
    21  import (
    22  	"encoding/json"
    23  
    24  	"github.com/nebulasio/go-nebulas/util"
    25  )
    26  
    27  // DipPayload carry ir data
    28  type DipPayload struct {
    29  	StartHeight uint64
    30  	EndHeight   uint64
    31  	Version     uint64
    32  	Contract    string
    33  }
    34  
    35  // LoadDipPayload from bytes
    36  func LoadDipPayload(bytes []byte) (*DipPayload, error) {
    37  	payload := &DipPayload{}
    38  	if err := json.Unmarshal(bytes, payload); err != nil {
    39  		return nil, ErrInvalidArgument
    40  	}
    41  	return NewDipPayload(payload.StartHeight, payload.EndHeight, payload.Version, payload.Contract)
    42  }
    43  
    44  // NewDipPayload with data
    45  func NewDipPayload(start, end, version uint64, contract string) (*DipPayload, error) {
    46  	if end < start {
    47  		return nil, ErrInvalidArgument
    48  	}
    49  	return &DipPayload{
    50  		StartHeight: start,
    51  		EndHeight:   end,
    52  		Version:     version,
    53  		Contract:    contract,
    54  	}, nil
    55  }
    56  
    57  // ToBytes serialize payload
    58  func (payload *DipPayload) ToBytes() ([]byte, error) {
    59  	return json.Marshal(payload)
    60  }
    61  
    62  // BaseGasCount returns base gas count
    63  func (payload *DipPayload) BaseGasCount() *util.Uint128 {
    64  	return util.NewUint128()
    65  }
    66  
    67  // Execute the payload in tx
    68  func (payload *DipPayload) Execute(limitedGas *util.Uint128, tx *Transaction, block *Block, ws WorldState) (*util.Uint128, string, error) {
    69  	if block == nil || tx == nil {
    70  		return util.NewUint128(), "", ErrNilArgument
    71  	}
    72  
    73  	return util.NewUint128(), "", nil
    74  }