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accounts/abi/bind: support event filtering in abigen

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This commit is contained in:
Péter Szilágyi
2018-01-05 12:39:24 +02:00
parent 02aeb3d766
commit 1bf508b449
25 changed files with 2524 additions and 1463 deletions
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155
contracts/chequebook/contract/chequebook.go
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@ -7,17 +7,19 @@ import (
"math/big"
"strings"
ethereum "github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/accounts/abi"
"github.com/ethereum/go-ethereum/accounts/abi/bind"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/event"
)
// ChequebookABI is the input ABI used to generate the binding from.
const ChequebookABI = "[{\"constant\":false,\"inputs\":[],\"name\":\"kill\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"\",\"type\":\"address\"}],\"name\":\"sent\",\"outputs\":[{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"beneficiary\",\"type\":\"address\"},{\"name\":\"amount\",\"type\":\"uint256\"},{\"name\":\"sig_v\",\"type\":\"uint8\"},{\"name\":\"sig_r\",\"type\":\"bytes32\"},{\"name\":\"sig_s\",\"type\":\"bytes32\"}],\"name\":\"cash\",\"outputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"payable\":true,\"stateMutability\":\"payable\",\"type\":\"fallback\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"deadbeat\",\"type\":\"address\"}],\"name\":\"Overdraft\",\"type\":\"event\"}]"
// ChequebookBin is the compiled bytecode used for deploying new contracts.
const ChequebookBin = `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`
const ChequebookBin = `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`
// DeployChequebook deploys a new Ethereum contract, binding an instance of Chequebook to it.
func DeployChequebook(auth *bind.TransactOpts, backend bind.ContractBackend) (common.Address, *types.Transaction, *Chequebook, error) {
@ -29,13 +31,14 @@ func DeployChequebook(auth *bind.TransactOpts, backend bind.ContractBackend) (co
if err != nil {
return common.Address{}, nil, nil, err
}
return address, tx, &Chequebook{ChequebookCaller: ChequebookCaller{contract: contract}, ChequebookTransactor: ChequebookTransactor{contract: contract}}, nil
return address, tx, &Chequebook{ChequebookCaller: ChequebookCaller{contract: contract}, ChequebookTransactor: ChequebookTransactor{contract: contract}, ChequebookFilterer: ChequebookFilterer{contract: contract}}, nil
}
// Chequebook is an auto generated Go binding around an Ethereum contract.
type Chequebook struct {
ChequebookCaller // Read-only binding to the contract
ChequebookTransactor // Write-only binding to the contract
ChequebookFilterer // Log filterer for contract events
}
// ChequebookCaller is an auto generated read-only Go binding around an Ethereum contract.
@ -48,6 +51,11 @@ type ChequebookTransactor struct {
contract *bind.BoundContract // Generic contract wrapper for the low level calls
}
// ChequebookFilterer is an auto generated log filtering Go binding around an Ethereum contract events.
type ChequebookFilterer struct {
contract *bind.BoundContract // Generic contract wrapper for the low level calls
}
// ChequebookSession is an auto generated Go binding around an Ethereum contract,
// with pre-set call and transact options.
type ChequebookSession struct {
@ -87,16 +95,16 @@ type ChequebookTransactorRaw struct {
// NewChequebook creates a new instance of Chequebook, bound to a specific deployed contract.
func NewChequebook(address common.Address, backend bind.ContractBackend) (*Chequebook, error) {
contract, err := bindChequebook(address, backend, backend)
contract, err := bindChequebook(address, backend, backend, backend)
if err != nil {
return nil, err
}
return &Chequebook{ChequebookCaller: ChequebookCaller{contract: contract}, ChequebookTransactor: ChequebookTransactor{contract: contract}}, nil
return &Chequebook{ChequebookCaller: ChequebookCaller{contract: contract}, ChequebookTransactor: ChequebookTransactor{contract: contract}, ChequebookFilterer: ChequebookFilterer{contract: contract}}, nil
}
// NewChequebookCaller creates a new read-only instance of Chequebook, bound to a specific deployed contract.
func NewChequebookCaller(address common.Address, caller bind.ContractCaller) (*ChequebookCaller, error) {
contract, err := bindChequebook(address, caller, nil)
contract, err := bindChequebook(address, caller, nil, nil)
if err != nil {
return nil, err
}
@ -105,20 +113,29 @@ func NewChequebookCaller(address common.Address, caller bind.ContractCaller) (*C
// NewChequebookTransactor creates a new write-only instance of Chequebook, bound to a specific deployed contract.
func NewChequebookTransactor(address common.Address, transactor bind.ContractTransactor) (*ChequebookTransactor, error) {
contract, err := bindChequebook(address, nil, transactor)
contract, err := bindChequebook(address, nil, transactor, nil)
if err != nil {
return nil, err
}
return &ChequebookTransactor{contract: contract}, nil
}
// NewChequebookFilterer creates a new log filterer instance of Chequebook, bound to a specific deployed contract.
func NewChequebookFilterer(address common.Address, filterer bind.ContractFilterer) (*ChequebookFilterer, error) {
contract, err := bindChequebook(address, nil, nil, filterer)
if err != nil {
return nil, err
}
return &ChequebookFilterer{contract: contract}, nil
}
// bindChequebook binds a generic wrapper to an already deployed contract.
func bindChequebook(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor) (*bind.BoundContract, error) {
func bindChequebook(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor, filterer bind.ContractFilterer) (*bind.BoundContract, error) {
parsed, err := abi.JSON(strings.NewReader(ChequebookABI))
if err != nil {
return nil, err
}
return bind.NewBoundContract(address, parsed, caller, transactor), nil
return bind.NewBoundContract(address, parsed, caller, transactor, filterer), nil
}
// Call invokes the (constant) contract method with params as input values and
@ -226,3 +243,125 @@ func (_Chequebook *ChequebookSession) Kill() (*types.Transaction, error) {
func (_Chequebook *ChequebookTransactorSession) Kill() (*types.Transaction, error) {
return _Chequebook.Contract.Kill(&_Chequebook.TransactOpts)
}
// ChequebookOverdraftIterator is returned from FilterOverdraft and is used to iterate over the raw logs and unpacked data for Overdraft events raised by the Chequebook contract.
type ChequebookOverdraftIterator struct {
Event *ChequebookOverdraft // Event containing the contract specifics and raw log
contract *bind.BoundContract // Generic contract to use for unpacking event data
event string // Event name to use for unpacking event data
logs chan types.Log // Log channel receiving the found contract events
sub ethereum.Subscription // Subscription for errors, completion and termination
done bool // Whether the subscription completed delivering logs
fail error // Occurred error to stop iteration
}
// Next advances the iterator to the subsequent event, returning whether there
// are any more events found. In case of a retrieval or parsing error, false is
// returned and Error() can be queried for the exact failure.
func (it *ChequebookOverdraftIterator) Next() bool {
// If the iterator failed, stop iterating
if it.fail != nil {
return false
}
// If the iterator completed, deliver directly whatever's available
if it.done {
select {
case log := <-it.logs:
it.Event = new(ChequebookOverdraft)
if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
it.fail = err
return false
}
it.Event.Raw = log
return true
default:
return false
}
}
// Iterator still in progress, wait for either a data or an error event
select {
case log := <-it.logs:
it.Event = new(ChequebookOverdraft)
if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
it.fail = err
return false
}
it.Event.Raw = log
return true
case err := <-it.sub.Err():
it.done = true
it.fail = err
return it.Next()
}
}
// Error retruned any retrieval or parsing error occurred during filtering.
func (it *ChequebookOverdraftIterator) Error() error {
return it.fail
}
// Close terminates the iteration process, releasing any pending underlying
// resources.
func (it *ChequebookOverdraftIterator) Close() error {
it.sub.Unsubscribe()
return nil
}
// ChequebookOverdraft represents a Overdraft event raised by the Chequebook contract.
type ChequebookOverdraft struct {
Deadbeat common.Address
Raw types.Log // Blockchain specific contextual infos
}
// FilterOverdraft is a free log retrieval operation binding the contract event 0x2250e2993c15843b32621c89447cc589ee7a9f049c026986e545d3c2c0c6f978.
//
// Solidity: event Overdraft(deadbeat address)
func (_Chequebook *ChequebookFilterer) FilterOverdraft(opts *bind.FilterOpts) (*ChequebookOverdraftIterator, error) {
logs, sub, err := _Chequebook.contract.FilterLogs(opts, "Overdraft")
if err != nil {
return nil, err
}
return &ChequebookOverdraftIterator{contract: _Chequebook.contract, event: "Overdraft", logs: logs, sub: sub}, nil
}
// WatchOverdraft is a free log subscription operation binding the contract event 0x2250e2993c15843b32621c89447cc589ee7a9f049c026986e545d3c2c0c6f978.
//
// Solidity: event Overdraft(deadbeat address)
func (_Chequebook *ChequebookFilterer) WatchOverdraft(opts *bind.WatchOpts, sink chan<- *ChequebookOverdraft) (event.Subscription, error) {
logs, sub, err := _Chequebook.contract.WatchLogs(opts, "Overdraft")
if err != nil {
return nil, err
}
return event.NewSubscription(func(quit <-chan struct{}) error {
defer sub.Unsubscribe()
for {
select {
case log := <-logs:
// New log arrived, parse the event and forward to the user
event := new(ChequebookOverdraft)
if err := _Chequebook.contract.UnpackLog(event, "Overdraft", log); err != nil {
return err
}
event.Raw = log
select {
case sink <- event:
case err := <-sub.Err():
return err
case <-quit:
return nil
}
case err := <-sub.Err():
return err
case <-quit:
return nil
}
}
}), nil
}

2
contracts/chequebook/contract/code.go
View File

@ -2,4 +2,4 @@ package contract
// ContractDeployedCode is used to detect suicides. This constant needs to be
// updated when the contract code is changed.
const ContractDeployedCode = "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"
const ContractDeployedCode = "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"