如何获取函数返回？

FISCO-BCOS / go-sdk

golang SDK of FISCO BCOS

Apache License 2.0

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transaction hash of receipt: { "transactionHash": "0xd46904c9dc3ff228b8a5860fe216165a64f38072399110055016bcbf7d86de6b", "transactionIndex": "0x0", "blockHash": "0xbffd9be456191bfa90063a4be0a81ddd2339fa5d0c1b8d63c1406eb7e13bc528", "blockNumber": "0x93", "gasUsed": "0xd774", "contractAddress": "0x0000000000000000000000000000000000000000", "root": "0xc61f720e0699cd73d344055db629b7e2735d07dbedd6ca1cb78320d567285ff5", "status": 0, "from": "0x83309d045a19c44dc3722d15a6abd472f95866ac", "to": "0x29aee16d3cfdd6d7211e454743e747b190da2375", "input": "0xea87152b000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000003e8000000000000000000000000000000000000000000000000000000000000002a30783833333039643034356131396334346463333732326431356136616264343732663935383636616200000000000000000000000000000000000000000000", "output": "0x0000000000000000000000000000000000000000000000000000000000000000", "logs": [ { "address": "0x29aee16d3cfdd6d7211e454743e747b190da2375", "data": "0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000003e8000000000000000000000000000000000000000000000000000000000000002a30783833333039643034356131396334346463333732326431356136616264343732663935383636616200000000000000000000000000000000000000000000", "topics": [ "0x91c95f04198617c60eaf2180fbca88fc192db379657df0e412a9f7dd4ebbe95d" ] } ], "logsBloom": "0x00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000010000000000000100000000000000000000000008000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000" }

@Achilise 是的，如果status字段为0，那么output里面是返回值

我有两个问题：

貌似不管函数调用成功与否，status都是0，这个status字段是什么意思？
对于监听机制，WatchRegisterEvent函数第一个参数怎么传？有demo吗？以下是生成go文件，没有找到带返回值的版本：
```
// Code generated - DO NOT EDIT.
// This file is a generated binding and any manual changes will be lost.
```

package asset

import ( "math/big" "strings"

"github.com/FISCO-BCOS/go-sdk/abi"
"github.com/FISCO-BCOS/go-sdk/abi/bind"
"github.com/FISCO-BCOS/go-sdk/core/types"
"github.com/FISCO-BCOS/go-sdk/event"
ethereum "github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"

)

// Reference imports to suppress errors if they are not otherwise used. var ( = big.NewInt = strings.NewReader = ethereum.NotFound = abi.U256 = bind.Bind = common.Big1 = types.BloomLookup = event.NewSubscription )

// AssetABI is the input ABI used to generate the binding from. const AssetABI = "[{\"constant\":false,\"inputs\":[{\"name\":\"from_account\",\"type\":\"string\"},{\"name\":\"to_account\",\"type\":\"string\"},{\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[{\"name\":\"\",\"type\":\"int256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"account\",\"type\":\"string\"},{\"name\":\"asset_value\",\"type\":\"uint256\"}],\"name\":\"register\",\"outputs\":[{\"name\":\"\",\"type\":\"int256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"account\",\"type\":\"string\"}],\"name\":\"select\",\"outputs\":[{\"name\":\"\",\"type\":\"int256\"},{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"ret\",\"type\":\"int256\"},{\"indexed\":false,\"name\":\"account\",\"type\":\"string\"},{\"indexed\":false,\"name\":\"asset_value\",\"type\":\"uint256\"}],\"name\":\"RegisterEvent\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"ret\",\"type\":\"int256\"},{\"indexed\":false,\"name\":\"from_account\",\"type\":\"string\"},{\"indexed\":false,\"name\":\"to_account\",\"type\":\"string\"},{\"indexed\":false,\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TransferEvent\",\"type\":\"event\"}]"

// AssetBin is the compiled bytecode used for deploying new contracts. var AssetBin = "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// DeployAsset deploys a new contract, binding an instance of Asset to it. func DeployAsset(auth bind.TransactOpts, backend bind.ContractBackend) (common.Address, types.Transaction, *Asset, error) { parsed, err := abi.JSON(strings.NewReader(AssetABI)) if err != nil { return common.Address{}, nil, nil, err }

address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(AssetBin), backend)
if err != nil {
    return common.Address{}, nil, nil, err
}
return address, tx, &Asset{AssetCaller: AssetCaller{contract: contract}, AssetTransactor: AssetTransactor{contract: contract}, AssetFilterer: AssetFilterer{contract: contract}}, nil

}

func AsyncDeployAsset(auth bind.TransactOpts, handler func(types.Receipt, error), backend bind.ContractBackend) (*types.Transaction, error) { parsed, err := abi.JSON(strings.NewReader(AssetABI)) if err != nil { return nil, err }

tx, err := bind.AsyncDeployContract(auth, handler, parsed, common.FromHex(AssetBin), backend)
if err != nil {
    return nil, err
}
return tx, nil

}

// Asset is an auto generated Go binding around a Solidity contract. type Asset struct { AssetCaller // Read-only binding to the contract AssetTransactor // Write-only binding to the contract AssetFilterer // Log filterer for contract events }

// AssetCaller is an auto generated read-only Go binding around a Solidity contract. type AssetCaller struct { contract *bind.BoundContract // Generic contract wrapper for the low level calls }

// AssetTransactor is an auto generated write-only Go binding around a Solidity contract. type AssetTransactor struct { contract *bind.BoundContract // Generic contract wrapper for the low level calls }

// AssetFilterer is an auto generated log filtering Go binding around a Solidity contract events. type AssetFilterer struct { contract *bind.BoundContract // Generic contract wrapper for the low level calls }

// AssetSession is an auto generated Go binding around a Solidity contract, // with pre-set call and transact options. type AssetSession struct { Contract *Asset // Generic contract binding to set the session for CallOpts bind.CallOpts // Call options to use throughout this session TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session }

// AssetCallerSession is an auto generated read-only Go binding around a Solidity contract, // with pre-set call options. type AssetCallerSession struct { Contract *AssetCaller // Generic contract caller binding to set the session for CallOpts bind.CallOpts // Call options to use throughout this session }

// AssetTransactorSession is an auto generated write-only Go binding around a Solidity contract, // with pre-set transact options. type AssetTransactorSession struct { Contract *AssetTransactor // Generic contract transactor binding to set the session for TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session }

// AssetRaw is an auto generated low-level Go binding around a Solidity contract. type AssetRaw struct { Contract *Asset // Generic contract binding to access the raw methods on }

// AssetCallerRaw is an auto generated low-level read-only Go binding around a Solidity contract. type AssetCallerRaw struct { Contract *AssetCaller // Generic read-only contract binding to access the raw methods on }

// AssetTransactorRaw is an auto generated low-level write-only Go binding around a Solidity contract. type AssetTransactorRaw struct { Contract *AssetTransactor // Generic write-only contract binding to access the raw methods on }

// NewAsset creates a new instance of Asset, bound to a specific deployed contract. func NewAsset(address common.Address, backend bind.ContractBackend) (*Asset, error) { contract, err := bindAsset(address, backend, backend, backend) if err != nil { return nil, err } return &Asset{AssetCaller: AssetCaller{contract: contract}, AssetTransactor: AssetTransactor{contract: contract}, AssetFilterer: AssetFilterer{contract: contract}}, nil }

// NewAssetCaller creates a new read-only instance of Asset, bound to a specific deployed contract. func NewAssetCaller(address common.Address, caller bind.ContractCaller) (*AssetCaller, error) { contract, err := bindAsset(address, caller, nil, nil) if err != nil { return nil, err } return &AssetCaller{contract: contract}, nil }

// NewAssetTransactor creates a new write-only instance of Asset, bound to a specific deployed contract. func NewAssetTransactor(address common.Address, transactor bind.ContractTransactor) (*AssetTransactor, error) { contract, err := bindAsset(address, nil, transactor, nil) if err != nil { return nil, err } return &AssetTransactor{contract: contract}, nil }

// NewAssetFilterer creates a new log filterer instance of Asset, bound to a specific deployed contract. func NewAssetFilterer(address common.Address, filterer bind.ContractFilterer) (*AssetFilterer, error) { contract, err := bindAsset(address, nil, nil, filterer) if err != nil { return nil, err } return &AssetFilterer{contract: contract}, nil }

// bindAsset binds a generic wrapper to an already deployed contract. func bindAsset(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor, filterer bind.ContractFilterer) (*bind.BoundContract, error) { parsed, err := abi.JSON(strings.NewReader(AssetABI)) if err != nil { return nil, err } return bind.NewBoundContract(address, parsed, caller, transactor, filterer), nil }

// Call invokes the (constant) contract method with params as input values and // sets the output to result. The result type might be a single field for simple // returns, a slice of interfaces for anonymous returns and a struct for named // returns. func (_Asset AssetRaw) Call(opts bind.CallOpts, result interface{}, method string, params ...interface{}) error { return _Asset.Contract.AssetCaller.contract.Call(opts, result, method, params...) }

// Transfer initiates a plain transaction to move funds to the contract, calling // its default method if one is available. func (_Asset AssetRaw) Transfer(opts bind.TransactOpts) (types.Transaction, types.Receipt, error) { return _Asset.Contract.AssetTransactor.contract.Transfer(opts) }

// Transact invokes the (paid) contract method with params as input values. func (_Asset AssetRaw) Transact(opts bind.TransactOpts, method string, params ...interface{}) (types.Transaction, types.Receipt, error) { return _Asset.Contract.AssetTransactor.contract.Transact(opts, method, params...) }

// Call invokes the (constant) contract method with params as input values and // sets the output to result. The result type might be a single field for simple // returns, a slice of interfaces for anonymous returns and a struct for named // returns. func (_Asset AssetCallerRaw) Call(opts bind.CallOpts, result interface{}, method string, params ...interface{}) error { return _Asset.Contract.contract.Call(opts, result, method, params...) }

// Transfer initiates a plain transaction to move funds to the contract, calling // its default method if one is available. func (_Asset AssetTransactorRaw) Transfer(opts bind.TransactOpts) (types.Transaction, types.Receipt, error) { return _Asset.Contract.contract.Transfer(opts) }

// Transact invokes the (paid) contract method with params as input values. func (_Asset AssetTransactorRaw) Transact(opts bind.TransactOpts, method string, params ...interface{}) (types.Transaction, types.Receipt, error) { return _Asset.Contract.contract.Transact(opts, method, params...) }

// Select is a free data retrieval call binding the contract method 0xfcd7e3c1. // // Solidity: function select(string account) constant returns(int256, uint256) func (_Asset AssetCaller) Select(opts bind.CallOpts, account string) (big.Int, big.Int, error) { var ( ret0 = new(big.Int) ret1 = new(big.Int) ) out := &[]interface{}{ ret0, ret1, } err := _Asset.contract.Call(opts, out, "select", account) return ret0, ret1, err }

// Select is a free data retrieval call binding the contract method 0xfcd7e3c1. // // Solidity: function select(string account) constant returns(int256, uint256) func (_Asset AssetCallerSession) Select(account string) (big.Int, *big.Int, error) { return _Asset.Contract.Select(&_Asset.CallOpts, account) }

// Register is a paid mutator transaction binding the contract method 0xea87152b. // // Solidity: function register(string account, uint256 asset_value) returns(int256) func (_Asset AssetTransactor) Register(opts bind.TransactOpts, account string, asset_value big.Int) (types.Transaction, *types.Receipt, error) { return _Asset.contract.Transact(opts, "register", account, asset_value) }

func (_Asset AssetTransactor) AsyncRegister(handler func(types.Receipt, error), opts bind.TransactOpts, account string, asset_value big.Int) (*types.Transaction, error) { return _Asset.contract.AsyncTransact(opts, handler, "register", account, asset_value) }

// Register is a paid mutator transaction binding the contract method 0xea87152b. // // Solidity: function register(string account, uint256 asset_value) returns(int256) func (_Asset AssetSession) Register(account string, asset_value big.Int) (types.Transaction, types.Receipt, error) { return _Asset.Contract.Register(&_Asset.TransactOpts, account, asset_value) }

func (_Asset AssetSession) AsyncRegister(handler func(types.Receipt, error), account string, asset_value big.Int) (types.Transaction, error) { return _Asset.Contract.AsyncRegister(handler, &_Asset.TransactOpts, account, asset_value) }

// Register is a paid mutator transaction binding the contract method 0xea87152b. // // Solidity: function register(string account, uint256 asset_value) returns(int256) func (_Asset AssetTransactorSession) Register(account string, asset_value big.Int) (types.Transaction, types.Receipt, error) { return _Asset.Contract.Register(&_Asset.TransactOpts, account, asset_value) }

func (_Asset AssetTransactorSession) AsyncRegister(handler func(types.Receipt, error), account string, asset_value big.Int) (types.Transaction, error) { return _Asset.Contract.AsyncRegister(handler, &_Asset.TransactOpts, account, asset_value) }

// Transfer is a paid mutator transaction binding the contract method 0x9b80b050. // // Solidity: function transfer(string from_account, string to_account, uint256 amount) returns(int256) func (_Asset AssetTransactor) Transfer(opts bind.TransactOpts, from_account string, to_account string, amount big.Int) (types.Transaction, *types.Receipt, error) { return _Asset.contract.Transact(opts, "transfer", from_account, to_account, amount) }

func (_Asset AssetTransactor) AsyncTransfer(handler func(types.Receipt, error), opts bind.TransactOpts, from_account string, to_account string, amount big.Int) (*types.Transaction, error) { return _Asset.contract.AsyncTransact(opts, handler, "transfer", from_account, to_account, amount) }

// Transfer is a paid mutator transaction binding the contract method 0x9b80b050. // // Solidity: function transfer(string from_account, string to_account, uint256 amount) returns(int256) func (_Asset AssetSession) Transfer(from_account string, to_account string, amount big.Int) (types.Transaction, types.Receipt, error) { return _Asset.Contract.Transfer(&_Asset.TransactOpts, from_account, to_account, amount) }

func (_Asset AssetSession) AsyncTransfer(handler func(types.Receipt, error), from_account string, to_account string, amount big.Int) (types.Transaction, error) { return _Asset.Contract.AsyncTransfer(handler, &_Asset.TransactOpts, from_account, to_account, amount) }

// Transfer is a paid mutator transaction binding the contract method 0x9b80b050. // // Solidity: function transfer(string from_account, string to_account, uint256 amount) returns(int256) func (_Asset AssetTransactorSession) Transfer(from_account string, to_account string, amount big.Int) (types.Transaction, types.Receipt, error) { return _Asset.Contract.Transfer(&_Asset.TransactOpts, from_account, to_account, amount) }

func (_Asset AssetTransactorSession) AsyncTransfer(handler func(types.Receipt, error), from_account string, to_account string, amount big.Int) (types.Transaction, error) { return _Asset.Contract.AsyncTransfer(handler, &_Asset.TransactOpts, from_account, to_account, amount) }

// AssetRegisterEventIterator is returned from FilterRegisterEvent and is used to iterate over the raw logs and unpacked data for RegisterEvent events raised by the Asset contract. type AssetRegisterEventIterator struct { Event *AssetRegisterEvent // 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 *AssetRegisterEventIterator) 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(AssetRegisterEvent) 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(AssetRegisterEvent)
    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 returns any retrieval or parsing error occurred during filtering. func (it *AssetRegisterEventIterator) Error() error { return it.fail }

// Close terminates the iteration process, releasing any pending underlying // resources. func (it *AssetRegisterEventIterator) Close() error { it.sub.Unsubscribe() return nil }

// AssetRegisterEvent represents a RegisterEvent event raised by the Asset contract. type AssetRegisterEvent struct { Ret big.Int Account string AssetValue big.Int Raw types.Log // Blockchain specific contextual infos }

// FilterRegisterEvent is a free log retrieval operation binding the contract event 0x91c95f04198617c60eaf2180fbca88fc192db379657df0e412a9f7dd4ebbe95d. // // Solidity: event RegisterEvent(int256 ret, string account, uint256 asset_value) func (_Asset AssetFilterer) FilterRegisterEvent(opts bind.FilterOpts) (*AssetRegisterEventIterator, error) {

logs, sub, err := _Asset.contract.FilterLogs(opts, "RegisterEvent")
if err != nil {
    return nil, err
}
return &AssetRegisterEventIterator{contract: _Asset.contract, event: "RegisterEvent", logs: logs, sub: sub}, nil

}

// WatchRegisterEvent is a free log subscription operation binding the contract event 0x91c95f04198617c60eaf2180fbca88fc192db379657df0e412a9f7dd4ebbe95d. // // Solidity: event RegisterEvent(int256 ret, string account, uint256 asset_value) func (_Asset AssetFilterer) WatchRegisterEvent(opts bind.WatchOpts, sink chan<- *AssetRegisterEvent) (event.Subscription, error) {

logs, sub, err := _Asset.contract.WatchLogs(opts, "RegisterEvent")
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(AssetRegisterEvent)
            if err := _Asset.contract.UnpackLog(event, "RegisterEvent", 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

}

// ParseRegisterEvent is a log parse operation binding the contract event 0x91c95f04198617c60eaf2180fbca88fc192db379657df0e412a9f7dd4ebbe95d. // // Solidity: event RegisterEvent(int256 ret, string account, uint256 asset_value) func (_Asset AssetFilterer) ParseRegisterEvent(log types.Log) (AssetRegisterEvent, error) { event := new(AssetRegisterEvent) if err := _Asset.contract.UnpackLog(event, "RegisterEvent", log); err != nil { return nil, err } return event, nil }

// AssetTransferEventIterator is returned from FilterTransferEvent and is used to iterate over the raw logs and unpacked data for TransferEvent events raised by the Asset contract. type AssetTransferEventIterator struct { Event *AssetTransferEvent // 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 *AssetTransferEventIterator) 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(AssetTransferEvent) 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(AssetTransferEvent)
    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 returns any retrieval or parsing error occurred during filtering. func (it *AssetTransferEventIterator) Error() error { return it.fail }

// Close terminates the iteration process, releasing any pending underlying // resources. func (it *AssetTransferEventIterator) Close() error { it.sub.Unsubscribe() return nil }

// AssetTransferEvent represents a TransferEvent event raised by the Asset contract. type AssetTransferEvent struct { Ret big.Int FromAccount string ToAccount string Amount big.Int Raw types.Log // Blockchain specific contextual infos }

// FilterTransferEvent is a free log retrieval operation binding the contract event 0x8f6b9fa4d4bf04c7c1c3242d4a5c59ba22525b6761cf89e44becb27c606154bd. // // Solidity: event TransferEvent(int256 ret, string from_account, string to_account, uint256 amount) func (_Asset AssetFilterer) FilterTransferEvent(opts bind.FilterOpts) (*AssetTransferEventIterator, error) {

logs, sub, err := _Asset.contract.FilterLogs(opts, "TransferEvent")
if err != nil {
    return nil, err
}
return &AssetTransferEventIterator{contract: _Asset.contract, event: "TransferEvent", logs: logs, sub: sub}, nil

}

// WatchTransferEvent is a free log subscription operation binding the contract event 0x8f6b9fa4d4bf04c7c1c3242d4a5c59ba22525b6761cf89e44becb27c606154bd. // // Solidity: event TransferEvent(int256 ret, string from_account, string to_account, uint256 amount) func (_Asset AssetFilterer) WatchTransferEvent(opts bind.WatchOpts, sink chan<- *AssetTransferEvent) (event.Subscription, error) {

logs, sub, err := _Asset.contract.WatchLogs(opts, "TransferEvent")
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(AssetTransferEvent)
            if err := _Asset.contract.UnpackLog(event, "TransferEvent", 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

}

// ParseTransferEvent is a log parse operation binding the contract event 0x8f6b9fa4d4bf04c7c1c3242d4a5c59ba22525b6761cf89e44becb27c606154bd. // // Solidity: event TransferEvent(int256 ret, string from_account, string to_account, uint256 amount) func (_Asset AssetFilterer) ParseTransferEvent(log types.Log) (AssetTransferEvent, error) { event := new(AssetTransferEvent) if err := _Asset.contract.UnpackLog(event, "TransferEvent", log); err != nil { return nil, err } return event, nil }

// Code generated - DO NOT EDIT. // This file is a generated binding and any manual changes will be lost. package asset import ( "math/big" "strings" "github.com/FISCO-BCOS/go-sdk/abi" "github.com/FISCO-BCOS/go-sdk/abi/bind" "github.com/FISCO-BCOS/go-sdk/core/types" "github.com/FISCO-BCOS/go-sdk/event" ethereum "github.com/ethereum/go-ethereum" "github.com/ethereum/go-ethereum/common" ) // Reference imports to suppress errors if they are not otherwise used. var ( _ = big.NewInt _ = strings.NewReader _ = ethereum.NotFound _ = abi.U256 _ = bind.Bind _ = common.Big1 _ = types.BloomLookup _ = event.NewSubscription ) // AssetABI is the input ABI used to generate the binding from. const AssetABI = "[{\"constant\":false,\"inputs\":[{\"name\":\"from_account\",\"type\":\"string\"},{\"name\":\"to_account\",\"type\":\"string\"},{\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[{\"name\":\"\",\"type\":\"int256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":false,\"inputs\":[{\"name\":\"account\",\"type\":\"string\"},{\"name\":\"asset_value\",\"type\":\"uint256\"}],\"name\":\"register\",\"outputs\":[{\"name\":\"\",\"type\":\"int256\"}],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"constant\":true,\"inputs\":[{\"name\":\"account\",\"type\":\"string\"}],\"name\":\"select\",\"outputs\":[{\"name\":\"\",\"type\":\"int256\"},{\"name\":\"\",\"type\":\"uint256\"}],\"payable\":false,\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"payable\":false,\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"ret\",\"type\":\"int256\"},{\"indexed\":false,\"name\":\"account\",\"type\":\"string\"},{\"indexed\":false,\"name\":\"asset_value\",\"type\":\"uint256\"}],\"name\":\"RegisterEvent\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":false,\"name\":\"ret\",\"type\":\"int256\"},{\"indexed\":false,\"name\":\"from_account\",\"type\":\"string\"},{\"indexed\":false,\"name\":\"to_account\",\"type\":\"string\"},{\"indexed\":false,\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"TransferEvent\",\"type\":\"event\"}]" // AssetBin is the compiled bytecode used for deploying new contracts. var AssetBin = 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// DeployAsset deploys a new contract, binding an instance of Asset to it. func DeployAsset(auth *bind.TransactOpts, backend bind.ContractBackend) (common.Address, *types.Transaction, *Asset, error) { parsed, err := abi.JSON(strings.NewReader(AssetABI)) if err != nil { return common.Address{}, nil, nil, err } address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex(AssetBin), backend) if err != nil { return common.Address{}, nil, nil, err } return address, tx, &Asset{AssetCaller: AssetCaller{contract: contract}, AssetTransactor: AssetTransactor{contract: contract}, AssetFilterer: AssetFilterer{contract: contract}}, nil } func AsyncDeployAsset(auth *bind.TransactOpts, handler func(*types.Receipt, error), backend bind.ContractBackend) (*types.Transaction, error) { parsed, err := abi.JSON(strings.NewReader(AssetABI)) if err != nil { return nil, err } tx, err := bind.AsyncDeployContract(auth, handler, parsed, common.FromHex(AssetBin), backend) if err != nil { return nil, err } return tx, nil } // Asset is an auto generated Go binding around a Solidity contract. type Asset struct { AssetCaller // Read-only binding to the contract AssetTransactor // Write-only binding to the contract AssetFilterer // Log filterer for contract events } // AssetCaller is an auto generated read-only Go binding around a Solidity contract. type AssetCaller struct { contract *bind.BoundContract // Generic contract wrapper for the low level calls } // AssetTransactor is an auto generated write-only Go binding around a Solidity contract. type AssetTransactor struct { contract *bind.BoundContract // Generic contract wrapper for the low level calls } // AssetFilterer is an auto generated log filtering Go binding around a Solidity contract events. type AssetFilterer struct { contract *bind.BoundContract // Generic contract wrapper for the low level calls } // AssetSession is an auto generated Go binding around a Solidity contract, // with pre-set call and transact options. type AssetSession struct { Contract *Asset // Generic contract binding to set the session for CallOpts bind.CallOpts // Call options to use throughout this session TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session } // AssetCallerSession is an auto generated read-only Go binding around a Solidity contract, // with pre-set call options. type AssetCallerSession struct { Contract *AssetCaller // Generic contract caller binding to set the session for CallOpts bind.CallOpts // Call options to use throughout this session } // AssetTransactorSession is an auto generated write-only Go binding around a Solidity contract, // with pre-set transact options. type AssetTransactorSession struct { Contract *AssetTransactor // Generic contract transactor binding to set the session for TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session } // AssetRaw is an auto generated low-level Go binding around a Solidity contract. type AssetRaw struct { Contract *Asset // Generic contract binding to access the raw methods on } // AssetCallerRaw is an auto generated low-level read-only Go binding around a Solidity contract. type AssetCallerRaw struct { Contract *AssetCaller // Generic read-only contract binding to access the raw methods on } // AssetTransactorRaw is an auto generated low-level write-only Go binding around a Solidity contract. type AssetTransactorRaw struct { Contract *AssetTransactor // Generic write-only contract binding to access the raw methods on } // NewAsset creates a new instance of Asset, bound to a specific deployed contract. func NewAsset(address common.Address, backend bind.ContractBackend) (*Asset, error) { contract, err := bindAsset(address, backend, backend, backend) if err != nil { return nil, err } return &Asset{AssetCaller: AssetCaller{contract: contract}, AssetTransactor: AssetTransactor{contract: contract}, AssetFilterer: AssetFilterer{contract: contract}}, nil } // NewAssetCaller creates a new read-only instance of Asset, bound to a specific deployed contract. func NewAssetCaller(address common.Address, caller bind.ContractCaller) (*AssetCaller, error) { contract, err := bindAsset(address, caller, nil, nil) if err != nil { return nil, err } return &AssetCaller{contract: contract}, nil } // NewAssetTransactor creates a new write-only instance of Asset, bound to a specific deployed contract. func NewAssetTransactor(address common.Address, transactor bind.ContractTransactor) (*AssetTransactor, error) { contract, err := bindAsset(address, nil, transactor, nil) if err != nil { return nil, err } return &AssetTransactor{contract: contract}, nil } // NewAssetFilterer creates a new log filterer instance of Asset, bound to a specific deployed contract. func NewAssetFilterer(address common.Address, filterer bind.ContractFilterer) (*AssetFilterer, error) { contract, err := bindAsset(address, nil, nil, filterer) if err != nil { return nil, err } return &AssetFilterer{contract: contract}, nil } // bindAsset binds a generic wrapper to an already deployed contract. func bindAsset(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor, filterer bind.ContractFilterer) (*bind.BoundContract, error) { parsed, err := abi.JSON(strings.NewReader(AssetABI)) if err != nil { return nil, err } return bind.NewBoundContract(address, parsed, caller, transactor, filterer), nil } // Call invokes the (constant) contract method with params as input values and // sets the output to result. The result type might be a single field for simple // returns, a slice of interfaces for anonymous returns and a struct for named // returns. func (_Asset *AssetRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error { return _Asset.Contract.AssetCaller.contract.Call(opts, result, method, params...) } // Transfer initiates a plain transaction to move funds to the contract, calling // its default method if one is available. func (_Asset *AssetRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, *types.Receipt, error) { return _Asset.Contract.AssetTransactor.contract.Transfer(opts) } // Transact invokes the (paid) contract method with params as input values. func (_Asset *AssetRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, *types.Receipt, error) { return _Asset.Contract.AssetTransactor.contract.Transact(opts, method, params...) } // Call invokes the (constant) contract method with params as input values and // sets the output to result. The result type might be a single field for simple // returns, a slice of interfaces for anonymous returns and a struct for named // returns. func (_Asset *AssetCallerRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error { return _Asset.Contract.contract.Call(opts, result, method, params...) } // Transfer initiates a plain transaction to move funds to the contract, calling // its default method if one is available. func (_Asset *AssetTransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, *types.Receipt, error) { return _Asset.Contract.contract.Transfer(opts) } // Transact invokes the (paid) contract method with params as input values. func (_Asset *AssetTransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, *types.Receipt, error) { return _Asset.Contract.contract.Transact(opts, method, params...) } // Select is a free data retrieval call binding the contract method 0xfcd7e3c1. // // Solidity: function select(string account) constant returns(int256, uint256) func (_Asset *AssetCaller) Select(opts *bind.CallOpts, account string) (*big.Int, *big.Int, error) { var ( ret0 = new(*big.Int) ret1 = new(*big.Int) ) out := &[]interface{}{ ret0, ret1, } err := _Asset.contract.Call(opts, out, "select", account) return *ret0, *ret1, err } // Select is a free data retrieval call binding the contract method 0xfcd7e3c1. // // Solidity: function select(string account) constant returns(int256, uint256) func (_Asset *AssetSession) Select(account string) (*big.Int, *big.Int, error) { return _Asset.Contract.Select(&_Asset.CallOpts, account) } // Select is a free data retrieval call binding the contract method 0xfcd7e3c1. // // Solidity: function select(string account) constant returns(int256, uint256) func (_Asset *AssetCallerSession) Select(account string) (*big.Int, *big.Int, error) { return _Asset.Contract.Select(&_Asset.CallOpts, account) } // Register is a paid mutator transaction binding the contract method 0xea87152b. // // Solidity: function register(string account, uint256 asset_value) returns(int256) func (_Asset *AssetTransactor) Register(opts *bind.TransactOpts, account string, asset_value *big.Int) (*types.Transaction, *types.Receipt, error) { return _Asset.contract.Transact(opts, "register", account, asset_value) } func (_Asset *AssetTransactor) AsyncRegister(handler func(*types.Receipt, error), opts *bind.TransactOpts, account string, asset_value *big.Int) (*types.Transaction, error) { return _Asset.contract.AsyncTransact(opts, handler, "register", account, asset_value) } // Register is a paid mutator transaction binding the contract method 0xea87152b. // // Solidity: function register(string account, uint256 asset_value) returns(int256) func (_Asset *AssetSession) Register(account string, asset_value *big.Int) (*types.Transaction, *types.Receipt, error) { return _Asset.Contract.Register(&_Asset.TransactOpts, account, asset_value) } func (_Asset *AssetSession) AsyncRegister(handler func(*types.Receipt, error), account string, asset_value *big.Int) (*types.Transaction, error) { return _Asset.Contract.AsyncRegister(handler, &_Asset.TransactOpts, account, asset_value) } // Register is a paid mutator transaction binding the contract method 0xea87152b. // // Solidity: function register(string account, uint256 asset_value) returns(int256) func (_Asset *AssetTransactorSession) Register(account string, asset_value *big.Int) (*types.Transaction, *types.Receipt, error) { return _Asset.Contract.Register(&_Asset.TransactOpts, account, asset_value) } func (_Asset *AssetTransactorSession) AsyncRegister(handler func(*types.Receipt, error), account string, asset_value *big.Int) (*types.Transaction, error) { return _Asset.Contract.AsyncRegister(handler, &_Asset.TransactOpts, account, asset_value) } // Transfer is a paid mutator transaction binding the contract method 0x9b80b050. // // Solidity: function transfer(string from_account, string to_account, uint256 amount) returns(int256) func (_Asset *AssetTransactor) Transfer(opts *bind.TransactOpts, from_account string, to_account string, amount *big.Int) (*types.Transaction, *types.Receipt, error) { return _Asset.contract.Transact(opts, "transfer", from_account, to_account, amount) } func (_Asset *AssetTransactor) AsyncTransfer(handler func(*types.Receipt, error), opts *bind.TransactOpts, from_account string, to_account string, amount *big.Int) (*types.Transaction, error) { return _Asset.contract.AsyncTransact(opts, handler, "transfer", from_account, to_account, amount) } // Transfer is a paid mutator transaction binding the contract method 0x9b80b050. // // Solidity: function transfer(string from_account, string to_account, uint256 amount) returns(int256) func (_Asset *AssetSession) Transfer(from_account string, to_account string, amount *big.Int) (*types.Transaction, *types.Receipt, error) { return _Asset.Contract.Transfer(&_Asset.TransactOpts, from_account, to_account, amount) } func (_Asset *AssetSession) AsyncTransfer(handler func(*types.Receipt, error), from_account string, to_account string, amount *big.Int) (*types.Transaction, error) { return _Asset.Contract.AsyncTransfer(handler, &_Asset.TransactOpts, from_account, to_account, amount) } // Transfer is a paid mutator transaction binding the contract method 0x9b80b050. // // Solidity: function transfer(string from_account, string to_account, uint256 amount) returns(int256) func (_Asset *AssetTransactorSession) Transfer(from_account string, to_account string, amount *big.Int) (*types.Transaction, *types.Receipt, error) { return _Asset.Contract.Transfer(&_Asset.TransactOpts, from_account, to_account, amount) } func (_Asset *AssetTransactorSession) AsyncTransfer(handler func(*types.Receipt, error), from_account string, to_account string, amount *big.Int) (*types.Transaction, error) { return _Asset.Contract.AsyncTransfer(handler, &_Asset.TransactOpts, from_account, to_account, amount) } // AssetRegisterEventIterator is returned from FilterRegisterEvent and is used to iterate over the raw logs and unpacked data for RegisterEvent events raised by the Asset contract. type AssetRegisterEventIterator struct { Event *AssetRegisterEvent // 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 *AssetRegisterEventIterator) 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(AssetRegisterEvent) 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(AssetRegisterEvent) 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 returns any retrieval or parsing error occurred during filtering. func (it *AssetRegisterEventIterator) Error() error { return it.fail } // Close terminates the iteration process, releasing any pending underlying // resources. func (it *AssetRegisterEventIterator) Close() error { it.sub.Unsubscribe() return nil } // AssetRegisterEvent represents a RegisterEvent event raised by the Asset contract. type AssetRegisterEvent struct { Ret *big.Int Account string AssetValue *big.Int Raw types.Log // Blockchain specific contextual infos } // FilterRegisterEvent is a free log retrieval operation binding the contract event 0x91c95f04198617c60eaf2180fbca88fc192db379657df0e412a9f7dd4ebbe95d. // // Solidity: event RegisterEvent(int256 ret, string account, uint256 asset_value) func (_Asset *AssetFilterer) FilterRegisterEvent(opts *bind.FilterOpts) (*AssetRegisterEventIterator, error) { logs, sub, err := _Asset.contract.FilterLogs(opts, "RegisterEvent") if err != nil { return nil, err } return &AssetRegisterEventIterator{contract: _Asset.contract, event: "RegisterEvent", logs: logs, sub: sub}, nil } // WatchRegisterEvent is a free log subscription operation binding the contract event 0x91c95f04198617c60eaf2180fbca88fc192db379657df0e412a9f7dd4ebbe95d. // // Solidity: event RegisterEvent(int256 ret, string account, uint256 asset_value) func (_Asset *AssetFilterer) WatchRegisterEvent(opts *bind.WatchOpts, sink chan<- *AssetRegisterEvent) (event.Subscription, error) { logs, sub, err := _Asset.contract.WatchLogs(opts, "RegisterEvent") 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(AssetRegisterEvent) if err := _Asset.contract.UnpackLog(event, "RegisterEvent", 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 } // ParseRegisterEvent is a log parse operation binding the contract event 0x91c95f04198617c60eaf2180fbca88fc192db379657df0e412a9f7dd4ebbe95d. // // Solidity: event RegisterEvent(int256 ret, string account, uint256 asset_value) func (_Asset *AssetFilterer) ParseRegisterEvent(log types.Log) (*AssetRegisterEvent, error) { event := new(AssetRegisterEvent) if err := _Asset.contract.UnpackLog(event, "RegisterEvent", log); err != nil { return nil, err } return event, nil } // AssetTransferEventIterator is returned from FilterTransferEvent and is used to iterate over the raw logs and unpacked data for TransferEvent events raised by the Asset contract. type AssetTransferEventIterator struct { Event *AssetTransferEvent // 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 *AssetTransferEventIterator) 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(AssetTransferEvent) 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(AssetTransferEvent) 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 returns any retrieval or parsing error occurred during filtering. func (it *AssetTransferEventIterator) Error() error { return it.fail } // Close terminates the iteration process, releasing any pending underlying // resources. func (it *AssetTransferEventIterator) Close() error { it.sub.Unsubscribe() return nil } // AssetTransferEvent represents a TransferEvent event raised by the Asset contract. type AssetTransferEvent struct { Ret *big.Int FromAccount string ToAccount string Amount *big.Int Raw types.Log // Blockchain specific contextual infos } // FilterTransferEvent is a free log retrieval operation binding the contract event 0x8f6b9fa4d4bf04c7c1c3242d4a5c59ba22525b6761cf89e44becb27c606154bd. // // Solidity: event TransferEvent(int256 ret, string from_account, string to_account, uint256 amount) func (_Asset *AssetFilterer) FilterTransferEvent(opts *bind.FilterOpts) (*AssetTransferEventIterator, error) { logs, sub, err := _Asset.contract.FilterLogs(opts, "TransferEvent") if err != nil { return nil, err } return &AssetTransferEventIterator{contract: _Asset.contract, event: "TransferEvent", logs: logs, sub: sub}, nil } // WatchTransferEvent is a free log subscription operation binding the contract event 0x8f6b9fa4d4bf04c7c1c3242d4a5c59ba22525b6761cf89e44becb27c606154bd. // // Solidity: event TransferEvent(int256 ret, string from_account, string to_account, uint256 amount) func (_Asset *AssetFilterer) WatchTransferEvent(opts *bind.WatchOpts, sink chan<- *AssetTransferEvent) (event.Subscription, error) { logs, sub, err := _Asset.contract.WatchLogs(opts, "TransferEvent") 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(AssetTransferEvent) if err := _Asset.contract.UnpackLog(event, "TransferEvent", 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 } // ParseTransferEvent is a log parse operation binding the contract event 0x8f6b9fa4d4bf04c7c1c3242d4a5c59ba22525b6761cf89e44becb27c606154bd. // // Solidity: event TransferEvent(int256 ret, string from_account, string to_account, uint256 amount) func (_Asset *AssetFilterer) ParseTransferEvent(log types.Log) (*AssetTransferEvent, error) { event := new(AssetTransferEvent) if err := _Asset.contract.UnpackLog(event, "TransferEvent", log); err != nil { return nil, err } return event, nil }

FISCO-BCOS / go-sdk

如何获取函数返回？ #126