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change_contract_code_migration.go
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change_contract_code_migration.go
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package migrations
import (
"fmt"
"github.com/onflow/cadence/runtime/common"
coreContracts "github.com/onflow/flow-core-contracts/lib/go/contracts"
"github.com/rs/zerolog"
"github.com/onflow/flow-go/cmd/util/ledger/reporters"
evm "github.com/onflow/flow-go/fvm/evm/stdlib"
"github.com/onflow/flow-go/fvm/systemcontracts"
"github.com/onflow/flow-go/model/flow"
)
func NewSystemContractChange(
systemContract systemcontracts.SystemContract,
newContractCode []byte,
) StagedContract {
return StagedContract{
Address: common.Address(systemContract.Address),
Contract: Contract{
Name: systemContract.Name,
Code: newContractCode,
},
}
}
type EVMContractChange uint8
const (
EVMContractChangeNone EVMContractChange = iota
EVMContractChangeFull
)
type BurnerContractChange uint8
const (
BurnerContractChangeNone BurnerContractChange = iota
BurnerContractChangeDeploy
BurnerContractChangeUpdate
)
func BurnerAddressForChain(chainID flow.ChainID) flow.Address {
systemContracts := systemcontracts.SystemContractsForChain(chainID)
serviceAccountAddress := systemContracts.FlowServiceAccount.Address
fungibleTokenAddress := systemContracts.FungibleToken.Address
switch chainID {
case flow.Mainnet, flow.Testnet:
return fungibleTokenAddress
case flow.Emulator, flow.Localnet:
return serviceAccountAddress
default:
panic(fmt.Errorf("unsupported chain ID: %s", chainID))
}
}
func SystemContractChanges(chainID flow.ChainID, options SystemContractsMigrationOptions) []StagedContract {
systemContracts := systemcontracts.SystemContractsForChain(chainID)
env := systemContracts.AsTemplateEnv()
env.BurnerAddress = BurnerAddressForChain(chainID).Hex()
switch chainID {
case flow.Mainnet:
env.StakingCollectionAddress = "0x8d0e87b65159ae63"
env.StakingProxyAddress = "0x62430cf28c26d095"
case flow.Testnet:
env.StakingCollectionAddress = "0x95e019a17d0e23d7"
env.StakingProxyAddress = "0x7aad92e5a0715d21"
case flow.Emulator, flow.Localnet:
env.StakingCollectionAddress = env.ServiceAccountAddress
env.StakingProxyAddress = env.ServiceAccountAddress
default:
panic(fmt.Errorf("unsupported chain ID: %s", chainID))
}
env.LockedTokensAddress = env.StakingCollectionAddress
contractChanges := []StagedContract{
// epoch related contracts
NewSystemContractChange(
systemContracts.Epoch,
coreContracts.FlowEpoch(
env,
),
),
NewSystemContractChange(
systemContracts.IDTableStaking,
coreContracts.FlowIDTableStaking(
env,
),
),
NewSystemContractChange(
systemContracts.ClusterQC,
coreContracts.FlowQC(),
),
NewSystemContractChange(
systemContracts.DKG,
coreContracts.FlowDKG(),
),
// service account related contracts
NewSystemContractChange(
systemContracts.FlowServiceAccount,
coreContracts.FlowServiceAccount(
env,
),
),
NewSystemContractChange(
systemContracts.NodeVersionBeacon,
coreContracts.NodeVersionBeacon(),
),
NewSystemContractChange(
systemContracts.RandomBeaconHistory,
coreContracts.RandomBeaconHistory(),
),
NewSystemContractChange(
systemContracts.FlowStorageFees,
coreContracts.FlowStorageFees(
env,
),
),
{
Address: common.Address(flow.HexToAddress(env.StakingCollectionAddress)),
Contract: Contract{
Name: "FlowStakingCollection",
Code: coreContracts.FlowStakingCollection(env),
},
},
{
Address: common.Address(flow.HexToAddress(env.StakingProxyAddress)),
Contract: Contract{
Name: "StakingProxy",
Code: coreContracts.FlowStakingProxy(),
},
},
{
Address: common.Address(flow.HexToAddress(env.LockedTokensAddress)),
Contract: Contract{
Name: "LockedTokens",
Code: coreContracts.FlowLockedTokens(env),
},
},
// token related contracts
NewSystemContractChange(
systemContracts.FlowFees,
coreContracts.FlowFees(
env,
),
),
NewSystemContractChange(
systemContracts.FlowToken,
coreContracts.FlowToken(
env,
),
),
NewSystemContractChange(
systemContracts.FungibleToken,
coreContracts.FungibleToken(
env,
),
),
{
Address: common.Address(flow.HexToAddress(env.FungibleTokenMetadataViewsAddress)),
Contract: Contract{
Name: "FungibleTokenMetadataViews",
Code: coreContracts.FungibleTokenMetadataViews(env),
},
},
// NFT related contracts
NewSystemContractChange(
systemContracts.NonFungibleToken,
coreContracts.NonFungibleToken(
env,
),
),
NewSystemContractChange(
systemContracts.MetadataViews,
coreContracts.MetadataViews(
env,
),
),
NewSystemContractChange(
systemContracts.ViewResolver,
coreContracts.ViewResolver(),
),
}
switch chainID {
case flow.Emulator, flow.Localnet:
// skip
default:
contractChanges = append(
contractChanges,
StagedContract{
Address: common.Address(flow.HexToAddress(env.FungibleTokenSwitchboardAddress)),
Contract: Contract{
Name: "FungibleTokenSwitchboard",
Code: coreContracts.FungibleTokenSwitchboard(env),
},
},
)
}
// EVM related contracts
switch options.EVM {
case EVMContractChangeNone:
// do nothing
case EVMContractChangeFull:
contractChanges = append(
contractChanges,
NewSystemContractChange(
systemContracts.EVMContract,
evm.ContractCode(
systemContracts.NonFungibleToken.Address,
systemContracts.FungibleToken.Address,
systemContracts.FlowToken.Address,
),
),
)
default:
panic(fmt.Errorf("unsupported EVM contract change option: %d", options.EVM))
}
// Burner contract
if options.Burner == BurnerContractChangeUpdate {
contractChanges = append(
contractChanges,
StagedContract{
Address: common.Address(flow.HexToAddress(env.BurnerAddress)),
Contract: Contract{
Name: "Burner",
Code: coreContracts.Burner(),
},
},
)
}
return contractChanges
}
type SystemContractsMigrationOptions struct {
StagedContractsMigrationOptions
EVM EVMContractChange
Burner BurnerContractChange
}
func NewSystemContractsMigration(
log zerolog.Logger,
rwf reporters.ReportWriterFactory,
options SystemContractsMigrationOptions,
) *StagedContractsMigration {
migration := NewStagedContractsMigration(
"SystemContractsMigration",
"system-contracts-migrator",
log,
rwf,
options.StagedContractsMigrationOptions,
)
for _, change := range SystemContractChanges(options.ChainID, options) {
migration.registerContractChange(change)
}
return migration
}