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- // Copyright 2016 The go-ethereum Authors
- // This file is part of the go-ethereum library.
- //
- // The go-ethereum library is free software: you can redistribute it and/or modify
- // it under the terms of the GNU Lesser General Public License as published by
- // the Free Software Foundation, either version 3 of the License, or
- // (at your option) any later version.
- //
- // The go-ethereum library is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU Lesser General Public License for more details.
- //
- // You should have received a copy of the GNU Lesser General Public License
- // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
- package bind
- import "github.com/ethereum/go-ethereum/accounts/abi"
- // tmplData is the data structure required to fill the binding template.
- type tmplData struct {
- Package string // Name of the package to place the generated file in
- Contracts map[string]*tmplContract // List of contracts to generate into this file
- Libraries map[string]string // Map the bytecode's link pattern to the library name
- Structs map[string]*tmplStruct // Contract struct type definitions
- }
- // tmplContract contains the data needed to generate an individual contract binding.
- type tmplContract struct {
- Type string // Type name of the main contract binding
- InputABI string // JSON ABI used as the input to generate the binding from
- InputBin string // Optional EVM bytecode used to generate deploy code from
- FuncSigs map[string]string // Optional map: string signature -> 4-byte signature
- Constructor abi.Method // Contract constructor for deploy parametrization
- Calls map[string]*tmplMethod // Contract calls that only read state data
- Transacts map[string]*tmplMethod // Contract calls that write state data
- Fallback *tmplMethod // Additional special fallback function
- Receive *tmplMethod // Additional special receive function
- Events map[string]*tmplEvent // Contract events accessors
- Libraries map[string]string // Same as tmplData, but filtered to only keep what the contract needs
- Library bool // Indicator whether the contract is a library
- }
- // tmplMethod is a wrapper around an abi.Method that contains a few preprocessed
- // and cached data fields.
- type tmplMethod struct {
- Original abi.Method // Original method as parsed by the abi package
- Normalized abi.Method // Normalized version of the parsed method (capitalized names, non-anonymous args/returns)
- Structured bool // Whether the returns should be accumulated into a struct
- }
- // tmplEvent is a wrapper around an abi.Event that contains a few preprocessed
- // and cached data fields.
- type tmplEvent struct {
- Original abi.Event // Original event as parsed by the abi package
- Normalized abi.Event // Normalized version of the parsed fields
- }
- // tmplField is a wrapper around a struct field with binding language
- // struct type definition and relative filed name.
- type tmplField struct {
- Type string // Field type representation depends on target binding language
- Name string // Field name converted from the raw user-defined field name
- SolKind abi.Type // Raw abi type information
- }
- // tmplStruct is a wrapper around an abi.tuple and contains an auto-generated
- // struct name.
- type tmplStruct struct {
- Name string // Auto-generated struct name(before solidity v0.5.11) or raw name.
- Fields []*tmplField // Struct fields definition depends on the binding language.
- }
- // tmplSource is language to template mapping containing all the supported
- // programming languages the package can generate to.
- var tmplSource = map[Lang]string{
- LangGo: tmplSourceGo,
- LangJava: tmplSourceJava,
- }
- // tmplSourceGo is the Go source template that the generated Go contract binding
- // is based on.
- const tmplSourceGo = `
- // Code generated - DO NOT EDIT.
- // This file is a generated binding and any manual changes will be lost.
- package {{.Package}}
- 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"
- )
- // Reference imports to suppress errors if they are not otherwise used.
- var (
- _ = big.NewInt
- _ = strings.NewReader
- _ = ethereum.NotFound
- _ = bind.Bind
- _ = common.Big1
- _ = types.BloomLookup
- _ = event.NewSubscription
- )
- {{$structs := .Structs}}
- {{range $structs}}
- // {{.Name}} is an auto generated low-level Go binding around an user-defined struct.
- type {{.Name}} struct {
- {{range $field := .Fields}}
- {{$field.Name}} {{$field.Type}}{{end}}
- }
- {{end}}
- {{range $contract := .Contracts}}
- // {{.Type}}ABI is the input ABI used to generate the binding from.
- const {{.Type}}ABI = "{{.InputABI}}"
- var {{.Type}}ParsedABI, _ = abi.JSON(strings.NewReader({{.Type}}ABI))
- {{if $contract.FuncSigs}}
- // {{.Type}}FuncSigs maps the 4-byte function signature to its string representation.
- var {{.Type}}FuncSigs = map[string]string{
- {{range $strsig, $binsig := .FuncSigs}}"{{$binsig}}": "{{$strsig}}",
- {{end}}
- }
- {{end}}
- {{if .InputBin}}
- // {{.Type}}Bin is the compiled bytecode used for deploying new contracts.
- var {{.Type}}Bin = "0x{{.InputBin}}"
- // Deploy{{.Type}} deploys a new Ethereum contract, binding an instance of {{.Type}} to it.
- func Deploy{{.Type}}(auth *bind.TransactOpts, backend bind.ContractBackend {{range .Constructor.Inputs}}, {{.Name}} {{bindtype .Type $structs}}{{end}}) (common.Address, *types.Transaction, *{{.Type}}, error) {
- parsed, err := abi.JSON(strings.NewReader({{.Type}}ABI))
- if err != nil {
- return common.Address{}, nil, nil, err
- }
- {{range $pattern, $name := .Libraries}}
- {{decapitalise $name}}Addr, _, _, _ := Deploy{{capitalise $name}}(auth, backend)
- {{$contract.Type}}Bin = strings.Replace({{$contract.Type}}Bin, "__${{$pattern}}$__", {{decapitalise $name}}Addr.String()[2:], -1)
- {{end}}
- address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex({{.Type}}Bin), backend {{range .Constructor.Inputs}}, {{.Name}}{{end}})
- if err != nil {
- return common.Address{}, nil, nil, err
- }
- return address, tx, &{{.Type}}{ {{.Type}}Caller: {{.Type}}Caller{contract: contract}, {{.Type}}Transactor: {{.Type}}Transactor{contract: contract}, {{.Type}}Filterer: {{.Type}}Filterer{contract: contract} }, nil
- }
- {{end}}
- // {{.Type}} is an auto generated Go binding around an Ethereum contract.
- type {{.Type}} struct {
- {{.Type}}Caller // Read-only binding to the contract
- {{.Type}}Transactor // Write-only binding to the contract
- {{.Type}}Filterer // Log filterer for contract events
- }
- // {{.Type}}Caller is an auto generated read-only Go binding around an Ethereum contract.
- type {{.Type}}Caller struct {
- contract *bind.BoundContract // Generic contract wrapper for the low level calls
- }
- // {{.Type}}Transactor is an auto generated write-only Go binding around an Ethereum contract.
- type {{.Type}}Transactor struct {
- contract *bind.BoundContract // Generic contract wrapper for the low level calls
- }
- // {{.Type}}Filterer is an auto generated log filtering Go binding around an Ethereum contract events.
- type {{.Type}}Filterer struct {
- contract *bind.BoundContract // Generic contract wrapper for the low level calls
- }
- // {{.Type}}Session is an auto generated Go binding around an Ethereum contract,
- // with pre-set call and transact options.
- type {{.Type}}Session struct {
- Contract *{{.Type}} // 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
- }
- // {{.Type}}CallerSession is an auto generated read-only Go binding around an Ethereum contract,
- // with pre-set call options.
- type {{.Type}}CallerSession struct {
- Contract *{{.Type}}Caller // Generic contract caller binding to set the session for
- CallOpts bind.CallOpts // Call options to use throughout this session
- }
- // {{.Type}}TransactorSession is an auto generated write-only Go binding around an Ethereum contract,
- // with pre-set transact options.
- type {{.Type}}TransactorSession struct {
- Contract *{{.Type}}Transactor // Generic contract transactor binding to set the session for
- TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
- }
- // {{.Type}}Raw is an auto generated low-level Go binding around an Ethereum contract.
- type {{.Type}}Raw struct {
- Contract *{{.Type}} // Generic contract binding to access the raw methods on
- }
- // {{.Type}}CallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
- type {{.Type}}CallerRaw struct {
- Contract *{{.Type}}Caller // Generic read-only contract binding to access the raw methods on
- }
- // {{.Type}}TransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
- type {{.Type}}TransactorRaw struct {
- Contract *{{.Type}}Transactor // Generic write-only contract binding to access the raw methods on
- }
- // New{{.Type}} creates a new instance of {{.Type}}, bound to a specific deployed contract.
- func New{{.Type}}(address common.Address, backend bind.ContractBackend) (*{{.Type}}, error) {
- contract, err := bind{{.Type}}(address, backend, backend, backend)
- if err != nil {
- return nil, err
- }
- return &{{.Type}}{ {{.Type}}Caller: {{.Type}}Caller{contract: contract}, {{.Type}}Transactor: {{.Type}}Transactor{contract: contract}, {{.Type}}Filterer: {{.Type}}Filterer{contract: contract} }, nil
- }
- // New{{.Type}}Caller creates a new read-only instance of {{.Type}}, bound to a specific deployed contract.
- func New{{.Type}}Caller(address common.Address, caller bind.ContractCaller) (*{{.Type}}Caller, error) {
- contract, err := bind{{.Type}}(address, caller, nil, nil)
- if err != nil {
- return nil, err
- }
- return &{{.Type}}Caller{contract: contract}, nil
- }
- // New{{.Type}}Transactor creates a new write-only instance of {{.Type}}, bound to a specific deployed contract.
- func New{{.Type}}Transactor(address common.Address, transactor bind.ContractTransactor) (*{{.Type}}Transactor, error) {
- contract, err := bind{{.Type}}(address, nil, transactor, nil)
- if err != nil {
- return nil, err
- }
- return &{{.Type}}Transactor{contract: contract}, nil
- }
- // New{{.Type}}Filterer creates a new log filterer instance of {{.Type}}, bound to a specific deployed contract.
- func New{{.Type}}Filterer(address common.Address, filterer bind.ContractFilterer) (*{{.Type}}Filterer, error) {
- contract, err := bind{{.Type}}(address, nil, nil, filterer)
- if err != nil {
- return nil, err
- }
- return &{{.Type}}Filterer{contract: contract}, nil
- }
- // bind{{.Type}} binds a generic wrapper to an already deployed contract.
- func bind{{.Type}}(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor, filterer bind.ContractFilterer) (*bind.BoundContract, error) {
- parsed, err := abi.JSON(strings.NewReader({{.Type}}ABI))
- 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 (_{{$contract.Type}} *{{$contract.Type}}Raw) Call(opts *bind.CallOpts, result *[]interface{}, method string, params ...interface{}) error {
- return _{{$contract.Type}}.Contract.{{$contract.Type}}Caller.contract.Call(opts, result, method, params...)
- }
- // Transfer initiates a plain transaction to move funds to the contract, calling
- // its default method if one is available.
- func (_{{$contract.Type}} *{{$contract.Type}}Raw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
- return _{{$contract.Type}}.Contract.{{$contract.Type}}Transactor.contract.Transfer(opts)
- }
- // Transact invokes the (paid) contract method with params as input values.
- func (_{{$contract.Type}} *{{$contract.Type}}Raw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
- return _{{$contract.Type}}.Contract.{{$contract.Type}}Transactor.contract.Transact(opts, method, params...)
- }
- // Call invokes the (constant) contract method with params as input values and
- // sets the output to result. The result type might be a single field for simple
- // returns, a slice of interfaces for anonymous returns and a struct for named
- // returns.
- func (_{{$contract.Type}} *{{$contract.Type}}CallerRaw) Call(opts *bind.CallOpts, result *[]interface{}, method string, params ...interface{}) error {
- return _{{$contract.Type}}.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 (_{{$contract.Type}} *{{$contract.Type}}TransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
- return _{{$contract.Type}}.Contract.contract.Transfer(opts)
- }
- // Transact invokes the (paid) contract method with params as input values.
- func (_{{$contract.Type}} *{{$contract.Type}}TransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
- return _{{$contract.Type}}.Contract.contract.Transact(opts, method, params...)
- }
- {{range .Calls}}
- // {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.ID}}.
- //
- // Solidity: {{.Original.String}}
- func (_{{$contract.Type}} *{{$contract.Type}}Caller) {{.Normalized.Name}}(opts *bind.CallOpts {{range .Normalized.Inputs}}, {{.Name}} {{bindtype .Type $structs}} {{end}}) ({{if .Structured}}struct{ {{range .Normalized.Outputs}}{{.Name}} {{bindtype .Type $structs}};{{end}} },{{else}}{{range .Normalized.Outputs}}{{bindtype .Type $structs}},{{end}}{{end}} error) {
- var out []interface{}
- err := _{{$contract.Type}}.contract.Call(opts, &out, "{{.Original.Name}}" {{range .Normalized.Inputs}}, {{.Name}}{{end}})
- {{if .Structured}}
- outstruct := new(struct{ {{range .Normalized.Outputs}} {{.Name}} {{bindtype .Type $structs}}; {{end}} })
- if err != nil {
- return *outstruct, err
- }
- {{range $i, $t := .Normalized.Outputs}}
- outstruct.{{.Name}} = *abi.ConvertType(out[{{$i}}], new({{bindtype .Type $structs}})).(*{{bindtype .Type $structs}}){{end}}
- return *outstruct, err
- {{else}}
- if err != nil {
- return {{range $i, $_ := .Normalized.Outputs}}*new({{bindtype .Type $structs}}), {{end}} err
- }
- {{range $i, $t := .Normalized.Outputs}}
- out{{$i}} := *abi.ConvertType(out[{{$i}}], new({{bindtype .Type $structs}})).(*{{bindtype .Type $structs}}){{end}}
-
- return {{range $i, $t := .Normalized.Outputs}}out{{$i}}, {{end}} err
- {{end}}
- }
- // {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.ID}}.
- //
- // Solidity: {{.Original.String}}
- func (_{{$contract.Type}} *{{$contract.Type}}Session) {{.Normalized.Name}}({{range $i, $_ := .Normalized.Inputs}}{{if ne $i 0}},{{end}} {{.Name}} {{bindtype .Type $structs}} {{end}}) ({{if .Structured}}struct{ {{range .Normalized.Outputs}}{{.Name}} {{bindtype .Type $structs}};{{end}} }, {{else}} {{range .Normalized.Outputs}}{{bindtype .Type $structs}},{{end}} {{end}} error) {
- return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.CallOpts {{range .Normalized.Inputs}}, {{.Name}}{{end}})
- }
- // {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.ID}}.
- //
- // Solidity: {{.Original.String}}
- func (_{{$contract.Type}} *{{$contract.Type}}CallerSession) {{.Normalized.Name}}({{range $i, $_ := .Normalized.Inputs}}{{if ne $i 0}},{{end}} {{.Name}} {{bindtype .Type $structs}} {{end}}) ({{if .Structured}}struct{ {{range .Normalized.Outputs}}{{.Name}} {{bindtype .Type $structs}};{{end}} }, {{else}} {{range .Normalized.Outputs}}{{bindtype .Type $structs}},{{end}} {{end}} error) {
- return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.CallOpts {{range .Normalized.Inputs}}, {{.Name}}{{end}})
- }
- {{end}}
- {{range .Transacts}}
- // {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.ID}}.
- //
- // Solidity: {{.Original.String}}
- func (_{{$contract.Type}} *{{$contract.Type}}Transactor) {{.Normalized.Name}}(opts *bind.TransactOpts {{range .Normalized.Inputs}}, {{.Name}} {{bindtype .Type $structs}} {{end}}) (*types.Transaction, error) {
- return _{{$contract.Type}}.contract.Transact(opts, "{{.Original.Name}}" {{range .Normalized.Inputs}}, {{.Name}}{{end}})
- }
- // {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.ID}}.
- //
- // Solidity: {{.Original.String}}
- func (_{{$contract.Type}} *{{$contract.Type}}Session) {{.Normalized.Name}}({{range $i, $_ := .Normalized.Inputs}}{{if ne $i 0}},{{end}} {{.Name}} {{bindtype .Type $structs}} {{end}}) (*types.Transaction, error) {
- return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.TransactOpts {{range $i, $_ := .Normalized.Inputs}}, {{.Name}}{{end}})
- }
- // {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.ID}}.
- //
- // Solidity: {{.Original.String}}
- func (_{{$contract.Type}} *{{$contract.Type}}TransactorSession) {{.Normalized.Name}}({{range $i, $_ := .Normalized.Inputs}}{{if ne $i 0}},{{end}} {{.Name}} {{bindtype .Type $structs}} {{end}}) (*types.Transaction, error) {
- return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.TransactOpts {{range $i, $_ := .Normalized.Inputs}}, {{.Name}}{{end}})
- }
- {{end}}
- {{if .Fallback}}
- // Fallback is a paid mutator transaction binding the contract fallback function.
- //
- // Solidity: {{.Fallback.Original.String}}
- func (_{{$contract.Type}} *{{$contract.Type}}Transactor) Fallback(opts *bind.TransactOpts, calldata []byte) (*types.Transaction, error) {
- return _{{$contract.Type}}.contract.RawTransact(opts, calldata)
- }
- // Fallback is a paid mutator transaction binding the contract fallback function.
- //
- // Solidity: {{.Fallback.Original.String}}
- func (_{{$contract.Type}} *{{$contract.Type}}Session) Fallback(calldata []byte) (*types.Transaction, error) {
- return _{{$contract.Type}}.Contract.Fallback(&_{{$contract.Type}}.TransactOpts, calldata)
- }
-
- // Fallback is a paid mutator transaction binding the contract fallback function.
- //
- // Solidity: {{.Fallback.Original.String}}
- func (_{{$contract.Type}} *{{$contract.Type}}TransactorSession) Fallback(calldata []byte) (*types.Transaction, error) {
- return _{{$contract.Type}}.Contract.Fallback(&_{{$contract.Type}}.TransactOpts, calldata)
- }
- {{end}}
- {{if .Receive}}
- // Receive is a paid mutator transaction binding the contract receive function.
- //
- // Solidity: {{.Receive.Original.String}}
- func (_{{$contract.Type}} *{{$contract.Type}}Transactor) Receive(opts *bind.TransactOpts) (*types.Transaction, error) {
- return _{{$contract.Type}}.contract.RawTransact(opts, nil) // calldata is disallowed for receive function
- }
- // Receive is a paid mutator transaction binding the contract receive function.
- //
- // Solidity: {{.Receive.Original.String}}
- func (_{{$contract.Type}} *{{$contract.Type}}Session) Receive() (*types.Transaction, error) {
- return _{{$contract.Type}}.Contract.Receive(&_{{$contract.Type}}.TransactOpts)
- }
-
- // Receive is a paid mutator transaction binding the contract receive function.
- //
- // Solidity: {{.Receive.Original.String}}
- func (_{{$contract.Type}} *{{$contract.Type}}TransactorSession) Receive() (*types.Transaction, error) {
- return _{{$contract.Type}}.Contract.Receive(&_{{$contract.Type}}.TransactOpts)
- }
- {{end}}
- {{range .Events}}
- // {{$contract.Type}}{{.Normalized.Name}}Iterator is returned from Filter{{.Normalized.Name}} and is used to iterate over the raw logs and unpacked data for {{.Normalized.Name}} events raised by the {{$contract.Type}} contract.
- type {{$contract.Type}}{{.Normalized.Name}}Iterator struct {
- Event *{{$contract.Type}}{{.Normalized.Name}} // Event containing the contract specifics and raw log
- contract *bind.BoundContract // Generic contract to use for unpacking event data
- event string // Event name to use for unpacking event data
- logs chan types.Log // Log channel receiving the found contract events
- sub ethereum.Subscription // Subscription for errors, completion and termination
- done bool // Whether the subscription completed delivering logs
- fail error // Occurred error to stop iteration
- }
- // Next advances the iterator to the subsequent event, returning whether there
- // are any more events found. In case of a retrieval or parsing error, false is
- // returned and Error() can be queried for the exact failure.
- func (it *{{$contract.Type}}{{.Normalized.Name}}Iterator) 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({{$contract.Type}}{{.Normalized.Name}})
- if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
- it.fail = err
- return false
- }
- it.Event.Raw = log
- return true
- default:
- return false
- }
- }
- // Iterator still in progress, wait for either a data or an error event
- select {
- case log := <-it.logs:
- it.Event = new({{$contract.Type}}{{.Normalized.Name}})
- 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 *{{$contract.Type}}{{.Normalized.Name}}Iterator) Error() error {
- return it.fail
- }
- // Close terminates the iteration process, releasing any pending underlying
- // resources.
- func (it *{{$contract.Type}}{{.Normalized.Name}}Iterator) Close() error {
- it.sub.Unsubscribe()
- return nil
- }
- // {{$contract.Type}}{{.Normalized.Name}} represents a {{.Normalized.Name}} event raised by the {{$contract.Type}} contract.
- type {{$contract.Type}}{{.Normalized.Name}} struct { {{range .Normalized.Inputs}}
- {{capitalise .Name}} {{if .Indexed}}{{bindtopictype .Type $structs}}{{else}}{{bindtype .Type $structs}}{{end}}; {{end}}
- Raw types.Log // Blockchain specific contextual infos
- }
- // Filter{{.Normalized.Name}} is a free log retrieval operation binding the contract event 0x{{printf "%x" .Original.ID}}.
- //
- // Solidity: {{.Original.String}}
- func (_{{$contract.Type}} *{{$contract.Type}}Filterer) Filter{{.Normalized.Name}}(opts *bind.FilterOpts{{range .Normalized.Inputs}}{{if .Indexed}}, {{.Name}} []{{bindtype .Type $structs}}{{end}}{{end}}) (*{{$contract.Type}}{{.Normalized.Name}}Iterator, error) {
- {{range .Normalized.Inputs}}
- {{if .Indexed}}var {{.Name}}Rule []interface{}
- for _, {{.Name}}Item := range {{.Name}} {
- {{.Name}}Rule = append({{.Name}}Rule, {{.Name}}Item)
- }{{end}}{{end}}
- logs, sub, err := _{{$contract.Type}}.contract.FilterLogs(opts, "{{.Original.Name}}"{{range .Normalized.Inputs}}{{if .Indexed}}, {{.Name}}Rule{{end}}{{end}})
- if err != nil {
- return nil, err
- }
- return &{{$contract.Type}}{{.Normalized.Name}}Iterator{contract: _{{$contract.Type}}.contract, event: "{{.Original.Name}}", logs: logs, sub: sub}, nil
- }
- var {{.Normalized.Name}}TopicHash = "0x{{printf "%x" .Original.ID}}"
- // Watch{{.Normalized.Name}} is a free log subscription operation binding the contract event 0x{{printf "%x" .Original.ID}}.
- //
- // Solidity: {{.Original.String}}
- func (_{{$contract.Type}} *{{$contract.Type}}Filterer) Watch{{.Normalized.Name}}(opts *bind.WatchOpts, sink chan<- *{{$contract.Type}}{{.Normalized.Name}}{{range .Normalized.Inputs}}{{if .Indexed}}, {{.Name}} []{{bindtype .Type $structs}}{{end}}{{end}}) (event.Subscription, error) {
- {{range .Normalized.Inputs}}
- {{if .Indexed}}var {{.Name}}Rule []interface{}
- for _, {{.Name}}Item := range {{.Name}} {
- {{.Name}}Rule = append({{.Name}}Rule, {{.Name}}Item)
- }{{end}}{{end}}
- logs, sub, err := _{{$contract.Type}}.contract.WatchLogs(opts, "{{.Original.Name}}"{{range .Normalized.Inputs}}{{if .Indexed}}, {{.Name}}Rule{{end}}{{end}})
- 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({{$contract.Type}}{{.Normalized.Name}})
- if err := _{{$contract.Type}}.contract.UnpackLog(event, "{{.Original.Name}}", 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
- }
- // Parse{{.Normalized.Name}} is a log parse operation binding the contract event 0x{{printf "%x" .Original.ID}}.
- //
- // Solidity: {{.Original.String}}
- func (_{{$contract.Type}} *{{$contract.Type}}Filterer) Parse{{.Normalized.Name}}(log types.Log) (*{{$contract.Type}}{{.Normalized.Name}}, error) {
- event := new({{$contract.Type}}{{.Normalized.Name}})
- if err := _{{$contract.Type}}.contract.UnpackLog(event, "{{.Original.Name}}", log); err != nil {
- return nil, err
- }
- event.Raw = log
- return event, nil
- }
- {{end}}
- {{end}}
- `
- // tmplSourceJava is the Java source template that the generated Java contract binding
- // is based on.
- const tmplSourceJava = `
- // This file is an automatically generated Java binding. Do not modify as any
- // change will likely be lost upon the next re-generation!
- package {{.Package}};
- import org.ethereum.geth.*;
- import java.util.*;
- {{$structs := .Structs}}
- {{range $contract := .Contracts}}
- {{if not .Library}}public {{end}}class {{.Type}} {
- // ABI is the input ABI used to generate the binding from.
- public final static String ABI = "{{.InputABI}}";
- {{if $contract.FuncSigs}}
- // {{.Type}}FuncSigs maps the 4-byte function signature to its string representation.
- public final static Map<String, String> {{.Type}}FuncSigs;
- static {
- Hashtable<String, String> temp = new Hashtable<String, String>();
- {{range $strsig, $binsig := .FuncSigs}}temp.put("{{$binsig}}", "{{$strsig}}");
- {{end}}
- {{.Type}}FuncSigs = Collections.unmodifiableMap(temp);
- }
- {{end}}
- {{if .InputBin}}
- // BYTECODE is the compiled bytecode used for deploying new contracts.
- public final static String BYTECODE = "0x{{.InputBin}}";
- // deploy deploys a new Ethereum contract, binding an instance of {{.Type}} to it.
- public static {{.Type}} deploy(TransactOpts auth, EthereumClient client{{range .Constructor.Inputs}}, {{bindtype .Type $structs}} {{.Name}}{{end}}) throws Exception {
- Interfaces args = Geth.newInterfaces({{(len .Constructor.Inputs)}});
- String bytecode = BYTECODE;
- {{if .Libraries}}
- // "link" contract to dependent libraries by deploying them first.
- {{range $pattern, $name := .Libraries}}
- {{capitalise $name}} {{decapitalise $name}}Inst = {{capitalise $name}}.deploy(auth, client);
- bytecode = bytecode.replace("__${{$pattern}}$__", {{decapitalise $name}}Inst.Address.getHex().substring(2));
- {{end}}
- {{end}}
- {{range $index, $element := .Constructor.Inputs}}Interface arg{{$index}} = Geth.newInterface();arg{{$index}}.set{{namedtype (bindtype .Type $structs) .Type}}({{.Name}});args.set({{$index}},arg{{$index}});
- {{end}}
- return new {{.Type}}(Geth.deployContract(auth, ABI, Geth.decodeFromHex(bytecode), client, args));
- }
- // Internal constructor used by contract deployment.
- private {{.Type}}(BoundContract deployment) {
- this.Address = deployment.getAddress();
- this.Deployer = deployment.getDeployer();
- this.Contract = deployment;
- }
- {{end}}
- // Ethereum address where this contract is located at.
- public final Address Address;
- // Ethereum transaction in which this contract was deployed (if known!).
- public final Transaction Deployer;
- // Contract instance bound to a blockchain address.
- private final BoundContract Contract;
- // Creates a new instance of {{.Type}}, bound to a specific deployed contract.
- public {{.Type}}(Address address, EthereumClient client) throws Exception {
- this(Geth.bindContract(address, ABI, client));
- }
- {{range .Calls}}
- {{if gt (len .Normalized.Outputs) 1}}
- // {{capitalise .Normalized.Name}}Results is the output of a call to {{.Normalized.Name}}.
- public class {{capitalise .Normalized.Name}}Results {
- {{range $index, $item := .Normalized.Outputs}}public {{bindtype .Type $structs}} {{if ne .Name ""}}{{.Name}}{{else}}Return{{$index}}{{end}};
- {{end}}
- }
- {{end}}
- // {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.ID}}.
- //
- // Solidity: {{.Original.String}}
- public {{if gt (len .Normalized.Outputs) 1}}{{capitalise .Normalized.Name}}Results{{else if eq (len .Normalized.Outputs) 0}}void{{else}}{{range .Normalized.Outputs}}{{bindtype .Type $structs}}{{end}}{{end}} {{.Normalized.Name}}(CallOpts opts{{range .Normalized.Inputs}}, {{bindtype .Type $structs}} {{.Name}}{{end}}) throws Exception {
- Interfaces args = Geth.newInterfaces({{(len .Normalized.Inputs)}});
- {{range $index, $item := .Normalized.Inputs}}Interface arg{{$index}} = Geth.newInterface();arg{{$index}}.set{{namedtype (bindtype .Type $structs) .Type}}({{.Name}});args.set({{$index}},arg{{$index}});
- {{end}}
- Interfaces results = Geth.newInterfaces({{(len .Normalized.Outputs)}});
- {{range $index, $item := .Normalized.Outputs}}Interface result{{$index}} = Geth.newInterface(); result{{$index}}.setDefault{{namedtype (bindtype .Type $structs) .Type}}(); results.set({{$index}}, result{{$index}});
- {{end}}
- if (opts == null) {
- opts = Geth.newCallOpts();
- }
- this.Contract.call(opts, results, "{{.Original.Name}}", args);
- {{if gt (len .Normalized.Outputs) 1}}
- {{capitalise .Normalized.Name}}Results result = new {{capitalise .Normalized.Name}}Results();
- {{range $index, $item := .Normalized.Outputs}}result.{{if ne .Name ""}}{{.Name}}{{else}}Return{{$index}}{{end}} = results.get({{$index}}).get{{namedtype (bindtype .Type $structs) .Type}}();
- {{end}}
- return result;
- {{else}}{{range .Normalized.Outputs}}return results.get(0).get{{namedtype (bindtype .Type $structs) .Type}}();{{end}}
- {{end}}
- }
- {{end}}
- {{range .Transacts}}
- // {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.ID}}.
- //
- // Solidity: {{.Original.String}}
- public Transaction {{.Normalized.Name}}(TransactOpts opts{{range .Normalized.Inputs}}, {{bindtype .Type $structs}} {{.Name}}{{end}}) throws Exception {
- Interfaces args = Geth.newInterfaces({{(len .Normalized.Inputs)}});
- {{range $index, $item := .Normalized.Inputs}}Interface arg{{$index}} = Geth.newInterface();arg{{$index}}.set{{namedtype (bindtype .Type $structs) .Type}}({{.Name}});args.set({{$index}},arg{{$index}});
- {{end}}
- return this.Contract.transact(opts, "{{.Original.Name}}" , args);
- }
- {{end}}
- {{if .Fallback}}
- // Fallback is a paid mutator transaction binding the contract fallback function.
- //
- // Solidity: {{.Fallback.Original.String}}
- public Transaction Fallback(TransactOpts opts, byte[] calldata) throws Exception {
- return this.Contract.rawTransact(opts, calldata);
- }
- {{end}}
- {{if .Receive}}
- // Receive is a paid mutator transaction binding the contract receive function.
- //
- // Solidity: {{.Receive.Original.String}}
- public Transaction Receive(TransactOpts opts) throws Exception {
- return this.Contract.rawTransact(opts, null);
- }
- {{end}}
- }
- {{end}}
- `
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