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package main
import (
"bytes"
"fmt"
"github.com/ava-labs/coreth"
"github.com/ava-labs/coreth/core"
"github.com/ava-labs/coreth/core/types"
"github.com/ava-labs/coreth/eth"
"github.com/ava-labs/coreth/params"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/rlp"
"math/big"
)
func checkError(err error) {
if err != nil {
panic(err)
}
}
func main() {
// configure the chain
config := eth.DefaultConfig
config.ManualCanonical = true
chainConfig := ¶ms.ChainConfig{
ChainID: big.NewInt(1),
HomesteadBlock: big.NewInt(0),
DAOForkBlock: big.NewInt(0),
DAOForkSupport: true,
EIP150Block: big.NewInt(0),
EIP150Hash: common.HexToHash("0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0"),
EIP155Block: big.NewInt(0),
EIP158Block: big.NewInt(0),
ByzantiumBlock: big.NewInt(0),
ConstantinopleBlock: big.NewInt(0),
PetersburgBlock: big.NewInt(0),
IstanbulBlock: big.NewInt(0),
Ethash: nil,
}
// configure the genesis block
genBalance := big.NewInt(100000000000000000)
hk, _ := crypto.HexToECDSA(
"abd71b35d559563fea757f0f5edbde286fb8c043105b15abb7cd57189306d7d1")
genKey := coreth.NewKeyFromECDSA(hk)
config.Genesis = &core.Genesis{
Config: chainConfig,
Nonce: 0,
Number: 0,
ExtraData: hexutil.MustDecode("0x00"),
GasLimit: 100000000,
Difficulty: big.NewInt(0),
Alloc: core.GenesisAlloc{genKey.Address: {Balance: genBalance}},
}
// grab the control of block generation and disable auto uncle
config.Miner.ManualMining = true
config.Miner.DisableUncle = true
chain := coreth.NewETHChain(&config, nil, nil, nil)
buff := new(bytes.Buffer)
blk := chain.GetGenesisBlock()
err := blk.EncodeRLPEth(buff)
buff.WriteString("somesuffix")
checkError(err)
var blk2 *types.Block
blk2 = new(types.Block)
fmt.Println(buff.Len())
fmt.Println(common.ToHex(buff.Bytes()))
err = rlp.Decode(buff, blk2)
fmt.Println(buff.Len())
checkError(err)
buff.Reset()
err = blk2.EncodeRLPEth(buff)
checkError(err)
fmt.Println(buff.Len())
fmt.Println(common.ToHex(buff.Bytes()))
err = rlp.Decode(buff, blk2)
fmt.Println(buff.Len())
checkError(err)
buff.Reset()
err = blk2.EncodeRLP(buff)
checkError(err)
buff.WriteString("somesuffix")
fmt.Println(buff.Len())
fmt.Println(common.ToHex(buff.Bytes()))
err = rlp.Decode(buff, blk2)
fmt.Println(buff.Len())
checkError(err)
buff.Reset()
err = blk2.EncodeRLP(buff)
checkError(err)
fmt.Println(buff.Len())
fmt.Println(common.ToHex(buff.Bytes()))
err = rlp.Decode(buff, blk2)
fmt.Println(buff.Len())
checkError(err)
buff.Reset()
extra, err := rlp.EncodeToBytes("test extra data")
blk2.SetExtraData(extra)
err = blk2.EncodeRLPTest(buff, 0xffffffff)
checkError(err)
buff.WriteString("somesuffix")
fmt.Println(buff.Len())
fmt.Println(blk2.Hash().Hex())
err = rlp.Decode(buff, blk2)
checkError(err)
fmt.Println(buff.Len(), (string)(blk2.ExtraData()), blk2.Hash().Hex())
decoded1 := new(string)
err = rlp.DecodeBytes(blk2.ExtraData(), decoded1)
checkError(err)
fmt.Println(buff.Len(), decoded1)
fmt.Println(common.ToHex(buff.Bytes()))
buff.Reset()
type NestedData struct {
A uint16
B uint16
S string
}
type MyData struct {
X uint32
Y uint32
Msg string
Inner NestedData
}
extra, err = rlp.EncodeToBytes(MyData{
X: 4200, Y: 4300, Msg: "hello", Inner: NestedData{A: 1, B: 2, S: "world"},
})
checkError(err)
blk2.SetExtraData(extra)
err = blk2.EncodeRLPTest(buff, 0xfffffffe)
checkError(err)
fmt.Println(blk2.Hash().Hex())
err = rlp.Decode(buff, blk2)
checkError(err)
decoded2 := new(MyData)
err = rlp.DecodeBytes(blk2.ExtraData(), decoded2)
checkError(err)
fmt.Println(buff.Len(), decoded2, blk2.Hash().Hex())
buff.Reset()
}
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