consensus, core, params: rebrand Metro to Byzantium

core/state_processor.go

@@ -105,7 +105,7 @@ func ApplyTransaction(config *params.ChainConfig, bc *BlockChain, author *common
 
 	// Update the state with pending changes
 	var root []byte
-	if config.IsMetropolis(header.Number) {
+	if config.IsByzantium(header.Number) {
 		statedb.Finalise(true)
 	} else {
 		root = statedb.IntermediateRoot(config.IsEIP158(header.Number)).Bytes()

core/types/receipt.go

@@ -79,7 +79,7 @@ func NewReceipt(root []byte, failed bool, cumulativeGasUsed *big.Int) *Receipt {
 }
 
 // EncodeRLP implements rlp.Encoder, and flattens the consensus fields of a receipt
-// into an RLP stream. If no post state is present, metropolis fork is assumed.
+// into an RLP stream. If no post state is present, byzantium fork is assumed.
 func (r *Receipt) EncodeRLP(w io.Writer) error {
 	return rlp.Encode(w, &receiptRLP{r.statusEncoding(), r.CumulativeGasUsed, r.Bloom, r.Logs})
 }

core/vm/contracts.go

@@ -46,9 +46,9 @@ var PrecompiledContractsHomestead = map[common.Address]PrecompiledContract{
 	common.BytesToAddress([]byte{4}): &dataCopy{},
 }
 
-// PrecompiledContractsMetropolis contains the default set of pre-compiled Ethereum
-// contracts used in the Metropolis release.
-var PrecompiledContractsMetropolis = map[common.Address]PrecompiledContract{
+// PrecompiledContractsByzantium contains the default set of pre-compiled Ethereum
+// contracts used in the Byzantium release.
+var PrecompiledContractsByzantium = map[common.Address]PrecompiledContract{
 	common.BytesToAddress([]byte{1}): &ecrecover{},
 	common.BytesToAddress([]byte{2}): &sha256hash{},
 	common.BytesToAddress([]byte{3}): &ripemd160hash{},

core/vm/contracts_test.go

@@ -321,7 +321,7 @@ var bn256PairingTests = []precompiledTest{
 }
 
 func testPrecompiled(addr string, test precompiledTest, t *testing.T) {
-	p := PrecompiledContractsMetropolis[common.HexToAddress(addr)]
+	p := PrecompiledContractsByzantium[common.HexToAddress(addr)]
 	in := common.Hex2Bytes(test.input)
 	contract := NewContract(AccountRef(common.HexToAddress("1337")),
 		nil, new(big.Int), p.RequiredGas(in))
@@ -338,7 +338,7 @@ func benchmarkPrecompiled(addr string, test precompiledTest, bench *testing.B) {
 	if test.noBenchmark {
 		return
 	}
-	p := PrecompiledContractsMetropolis[common.HexToAddress(addr)]
+	p := PrecompiledContractsByzantium[common.HexToAddress(addr)]
 	in := common.Hex2Bytes(test.input)
 	reqGas := p.RequiredGas(in)
 	contract := NewContract(AccountRef(common.HexToAddress("1337")),

core/vm/evm.go

@@ -41,8 +41,8 @@ type (
 func run(evm *EVM, snapshot int, contract *Contract, input []byte) ([]byte, error) {
 	if contract.CodeAddr != nil {
 		precompiles := PrecompiledContractsHomestead
-		if evm.ChainConfig().IsMetropolis(evm.BlockNumber) {
-			precompiles = PrecompiledContractsMetropolis
+		if evm.ChainConfig().IsByzantium(evm.BlockNumber) {
+			precompiles = PrecompiledContractsByzantium
 		}
 		if p := precompiles[*contract.CodeAddr]; p != nil {
 			return RunPrecompiledContract(p, input, contract)
@@ -151,8 +151,8 @@ func (evm *EVM) Call(caller ContractRef, addr common.Address, input []byte, gas
 	)
 	if !evm.StateDB.Exist(addr) {
 		precompiles := PrecompiledContractsHomestead
-		if evm.ChainConfig().IsMetropolis(evm.BlockNumber) {
-			precompiles = PrecompiledContractsMetropolis
+		if evm.ChainConfig().IsByzantium(evm.BlockNumber) {
+			precompiles = PrecompiledContractsByzantium
 		}
 		if precompiles[addr] == nil && evm.ChainConfig().IsEIP158(evm.BlockNumber) && value.Sign() == 0 {
 			return nil, gas, nil

core/vm/gas_table.go

@@ -324,7 +324,7 @@ func gasCall(gt params.GasTable, evm *EVM, contract *Contract, stack *Stack, mem
 		eip158         = evm.ChainConfig().IsEIP158(evm.BlockNumber)
 	)
 	if eip158 {
-		if transfersValue && evm.StateDB.Empty(address)  {
+		if transfersValue && evm.StateDB.Empty(address) {
 			gas += params.CallNewAccountGas
 		}
 	} else if !evm.StateDB.Exist(address) {

core/vm/interpreter.go

@@ -70,8 +70,8 @@ func NewInterpreter(evm *EVM, cfg Config) *Interpreter {
 	// we'll set the default jump table.
 	if !cfg.JumpTable[STOP].valid {
 		switch {
-		case evm.ChainConfig().IsMetropolis(evm.BlockNumber):
-			cfg.JumpTable = metropolisInstructionSet
+		case evm.ChainConfig().IsByzantium(evm.BlockNumber):
+			cfg.JumpTable = byzantiumInstructionSet
 		case evm.ChainConfig().IsHomestead(evm.BlockNumber):
 			cfg.JumpTable = homesteadInstructionSet
 		default:
@@ -88,7 +88,7 @@ func NewInterpreter(evm *EVM, cfg Config) *Interpreter {
 }
 
 func (in *Interpreter) enforceRestrictions(op OpCode, operation operation, stack *Stack) error {
-	if in.evm.chainRules.IsMetropolis {
+	if in.evm.chainRules.IsByzantium {
 		if in.readOnly {
 			// If the interpreter is operating in readonly mode, make sure no
 			// state-modifying operation is performed. The 3rd stack item

core/vm/jump_table.go

@@ -51,14 +51,14 @@ type operation struct {
 }
 
 var (
-	frontierInstructionSet   = NewFrontierInstructionSet()
-	homesteadInstructionSet  = NewHomesteadInstructionSet()
-	metropolisInstructionSet = NewMetropolisInstructionSet()
+	frontierInstructionSet  = NewFrontierInstructionSet()
+	homesteadInstructionSet = NewHomesteadInstructionSet()
+	byzantiumInstructionSet = NewByzantiumInstructionSet()
 )
 
-// NewMetropolisInstructionSet returns the frontier, homestead and
-// metropolis instructions.
-func NewMetropolisInstructionSet() [256]operation {
+// NewByzantiumInstructionSet returns the frontier, homestead and
+// byzantium instructions.
+func NewByzantiumInstructionSet() [256]operation {
 	// instructions that can be executed during the homestead phase.
 	instructionSet := NewHomesteadInstructionSet()
 	instructionSet[STATICCALL] = operation{