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accounts/abi/bind, cmd/abigen: port to templates, bind to solidity

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This commit is contained in:
Péter Szilágyi
2016-03-21 14:34:49 +02:00
parent 86cfc22c79
commit 73308dbe0e
10 changed files with 595 additions and 449 deletions
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33
accounts/abi/bind/backends/simulated.go
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@ -19,6 +19,7 @@ package backends
import (
"math/big"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
@ -27,6 +28,9 @@ import (
"github.com/ethereum/go-ethereum/event"
)
// This nil assignment ensures compile time that SimulatedBackend implements bind.ContractBackend.
var _ bind.ContractBackend = (*SimulatedBackend)(nil)
// SimulatedBackend implements bind.ContractBackend, simulating a blockchain in
// the background. Its main purpose is to allow easily testing contract bindings.
type SimulatedBackend struct {
@ -79,13 +83,11 @@ func (b *SimulatedBackend) ContractCall(contract common.Address, data []byte, pe
statedb *state.StateDB
)
if pending {
block, statedb = b.pendingBlock, b.pendingState
block, statedb = b.pendingBlock, b.pendingState.Copy()
} else {
block = b.blockchain.CurrentBlock()
statedb, _ = b.blockchain.State()
}
statedb = statedb.Copy()
// Set infinite balance to the a fake caller account
from := statedb.GetOrNewStateObject(common.Address{})
from.SetBalance(common.MaxBig)
@ -100,28 +102,29 @@ func (b *SimulatedBackend) ContractCall(contract common.Address, data []byte, pe
data: data,
}
// Execute the call and return
vmenv := core.NewEnv(statedb, b.blockchain, msg, block.Header())
vmenv := core.NewEnv(statedb, b.blockchain, msg, block.Header(), nil)
gaspool := new(core.GasPool).AddGas(common.MaxBig)
out, _, err := core.ApplyMessage(vmenv, msg, gaspool)
return out, err
}
// AccountNonce implements ContractTransactor.AccountNonce, retrieving the nonce
// currently pending for the account.
func (b *SimulatedBackend) AccountNonce(account common.Address) (uint64, error) {
// PendingAccountNonce implements ContractTransactor.PendingAccountNonce, retrieving
// the nonce currently pending for the account.
func (b *SimulatedBackend) PendingAccountNonce(account common.Address) (uint64, error) {
return b.pendingState.GetOrNewStateObject(account).Nonce(), nil
}
// GasPrice implements ContractTransactor.GasPrice. Since the simulated chain
// doens't have miners, we just return a gas price of 1 for any call.
func (b *SimulatedBackend) GasPrice() (*big.Int, error) {
// SuggestGasPrice implements ContractTransactor.SuggestGasPrice. Since the simulated
// chain doens't have miners, we just return a gas price of 1 for any call.
func (b *SimulatedBackend) SuggestGasPrice() (*big.Int, error) {
return big.NewInt(1), nil
}
// GasLimit implements ContractTransactor.GasLimit, executing the requested code
// against the currently pending block/state and returning the used gas.
func (b *SimulatedBackend) GasLimit(sender common.Address, contract *common.Address, value *big.Int, data []byte) (*big.Int, error) {
// EstimateGasLimit implements ContractTransactor.EstimateGasLimit, executing the
// requested code against the currently pending block/state and returning the used
// gas.
func (b *SimulatedBackend) EstimateGasLimit(sender common.Address, contract *common.Address, value *big.Int, data []byte) (*big.Int, error) {
// Create a copy of the currently pending state db to screw around with
var (
block = b.pendingBlock
@ -142,14 +145,14 @@ func (b *SimulatedBackend) GasLimit(sender common.Address, contract *common.Addr
data: data,
}
// Execute the call and return
vmenv := core.NewEnv(statedb, b.blockchain, msg, block.Header())
vmenv := core.NewEnv(statedb, b.blockchain, msg, block.Header(), nil)
gaspool := new(core.GasPool).AddGas(common.MaxBig)
_, gas, err := core.ApplyMessage(vmenv, msg, gaspool)
return gas, err
}
// Transact implements ContractTransactor.SendTransaction, delegating the raw
// SendTransaction implements ContractTransactor.SendTransaction, delegating the raw
// transaction injection to the remote node.
func (b *SimulatedBackend) SendTransaction(tx *types.Transaction) error {
blocks, _ := core.GenerateChain(b.blockchain.CurrentBlock(), b.database, 1, func(number int, block *core.BlockGen) {