github.com/codingfuture/orig-energi3@v0.8.4/accounts/abi/bind/template.go (about)

     1  // Copyright 2018 The Energi Core Authors
     2  // Copyright 2016 The go-ethereum Authors
     3  // This file is part of the Energi Core library.
     4  //
     5  // The Energi Core library is free software: you can redistribute it and/or modify
     6  // it under the terms of the GNU Lesser General Public License as published by
     7  // the Free Software Foundation, either version 3 of the License, or
     8  // (at your option) any later version.
     9  //
    10  // The Energi Core library is distributed in the hope that it will be useful,
    11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    13  // GNU Lesser General Public License for more details.
    14  //
    15  // You should have received a copy of the GNU Lesser General Public License
    16  // along with the Energi Core library. If not, see <http://www.gnu.org/licenses/>.
    17  
    18  package bind
    19  
    20  import "github.com/ethereum/go-ethereum/accounts/abi"
    21  
    22  // tmplData is the data structure required to fill the binding template.
    23  type tmplData struct {
    24  	Package   string                   // Name of the package to place the generated file in
    25  	Contracts map[string]*tmplContract // List of contracts to generate into this file
    26  }
    27  
    28  // tmplContract contains the data needed to generate an individual contract binding.
    29  type tmplContract struct {
    30  	Type        string                 // Type name of the main contract binding
    31  	InputABI    string                 // JSON ABI used as the input to generate the binding from
    32  	InputBin    string                 // Optional EVM bytecode used to denetare deploy code from
    33  	RuntimeBin  string                 // Optional EVM bytecode of deployed contract
    34  	Constructor abi.Method             // Contract constructor for deploy parametrization
    35  	Calls       map[string]*tmplMethod // Contract calls that only read state data
    36  	Transacts   map[string]*tmplMethod // Contract calls that write state data
    37  	Events      map[string]*tmplEvent  // Contract events accessors
    38  }
    39  
    40  // tmplMethod is a wrapper around an abi.Method that contains a few preprocessed
    41  // and cached data fields.
    42  type tmplMethod struct {
    43  	Original   abi.Method // Original method as parsed by the abi package
    44  	Normalized abi.Method // Normalized version of the parsed method (capitalized names, non-anonymous args/returns)
    45  	Structured bool       // Whether the returns should be accumulated into a struct
    46  }
    47  
    48  // tmplEvent is a wrapper around an a
    49  type tmplEvent struct {
    50  	Original   abi.Event // Original event as parsed by the abi package
    51  	Normalized abi.Event // Normalized version of the parsed fields
    52  }
    53  
    54  // tmplSource is language to template mapping containing all the supported
    55  // programming languages the package can generate to.
    56  var tmplSource = map[Lang]string{
    57  	LangGo:   tmplSourceGo,
    58  	LangJava: tmplSourceJava,
    59  }
    60  
    61  // tmplSourceGo is the Go source template use to generate the contract binding
    62  // based on.
    63  const tmplSourceGo = `
    64  // Code generated - DO NOT EDIT.
    65  // This file is a generated binding and any manual changes will be lost.
    66  
    67  package {{.Package}}
    68  
    69  import (
    70  	"math/big"
    71  	"strings"
    72  
    73  	ethereum "github.com/ethereum/go-ethereum"
    74  	"github.com/ethereum/go-ethereum/accounts/abi"
    75  	"github.com/ethereum/go-ethereum/accounts/abi/bind"
    76  	"github.com/ethereum/go-ethereum/common"
    77  	"github.com/ethereum/go-ethereum/core/types"
    78  	"github.com/ethereum/go-ethereum/event"
    79  )
    80  
    81  // Reference imports to suppress errors if they are not otherwise used.
    82  var (
    83  	_ = big.NewInt
    84  	_ = strings.NewReader
    85  	_ = ethereum.NotFound
    86  	_ = abi.U256
    87  	_ = bind.Bind
    88  	_ = common.Big1
    89  	_ = types.BloomLookup
    90  	_ = event.NewSubscription
    91  )
    92  
    93  {{range $contract := .Contracts}}
    94  	// {{.Type}}ABI is the input ABI used to generate the binding from.
    95  	const {{.Type}}ABI = "{{.InputABI}}"
    96  
    97  	{{if .InputBin}}
    98  		// {{.Type}}Bin is the compiled bytecode used for deploying new contracts.
    99  		const {{.Type}}Bin = ` + "`" + `{{.InputBin}}` + "`" + `
   100  
   101  		// Deploy{{.Type}} deploys a new Ethereum contract, binding an instance of {{.Type}} to it.
   102  		func Deploy{{.Type}}(auth *bind.TransactOpts, backend bind.ContractBackend {{range .Constructor.Inputs}}, {{.Name}} {{bindtype .Type}}{{end}}) (common.Address, *types.Transaction, *{{.Type}}, error) {
   103  		  parsed, err := abi.JSON(strings.NewReader({{.Type}}ABI))
   104  		  if err != nil {
   105  		    return common.Address{}, nil, nil, err
   106  		  }
   107  		  address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex({{.Type}}Bin), backend {{range .Constructor.Inputs}}, {{.Name}}{{end}})
   108  		  if err != nil {
   109  		    return common.Address{}, nil, nil, err
   110  		  }
   111  		  return address, tx, &{{.Type}}{ {{.Type}}Caller: {{.Type}}Caller{contract: contract}, {{.Type}}Transactor: {{.Type}}Transactor{contract: contract}, {{.Type}}Filterer: {{.Type}}Filterer{contract: contract} }, nil
   112  		}
   113  	{{end}}
   114  
   115  	{{if .RuntimeBin}}
   116  		// {{.Type}}Bin is the compiled bytecode of contract after deployment.
   117  		const {{.Type}}RuntimeBin = ` + "`" + `{{.RuntimeBin}}` + "`" + `
   118  	{{end}}
   119  
   120  	// {{.Type}} is an auto generated Go binding around an Ethereum contract.
   121  	type {{.Type}} struct {
   122  	  {{.Type}}Caller     // Read-only binding to the contract
   123  	  {{.Type}}Transactor // Write-only binding to the contract
   124  		{{.Type}}Filterer   // Log filterer for contract events
   125  	}
   126  
   127  	// {{.Type}}Caller is an auto generated read-only Go binding around an Ethereum contract.
   128  	type {{.Type}}Caller struct {
   129  	  contract *bind.BoundContract // Generic contract wrapper for the low level calls
   130  	}
   131  
   132  	// {{.Type}}Transactor is an auto generated write-only Go binding around an Ethereum contract.
   133  	type {{.Type}}Transactor struct {
   134  	  contract *bind.BoundContract // Generic contract wrapper for the low level calls
   135  	}
   136  
   137  	// {{.Type}}Filterer is an auto generated log filtering Go binding around an Ethereum contract events.
   138  	type {{.Type}}Filterer struct {
   139  	  contract *bind.BoundContract // Generic contract wrapper for the low level calls
   140  	}
   141  
   142  	// {{.Type}}Session is an auto generated Go binding around an Ethereum contract,
   143  	// with pre-set call and transact options.
   144  	type {{.Type}}Session struct {
   145  	  Contract     *{{.Type}}        // Generic contract binding to set the session for
   146  	  CallOpts     bind.CallOpts     // Call options to use throughout this session
   147  	  TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
   148  	}
   149  
   150  	// {{.Type}}CallerSession is an auto generated read-only Go binding around an Ethereum contract,
   151  	// with pre-set call options.
   152  	type {{.Type}}CallerSession struct {
   153  	  Contract *{{.Type}}Caller // Generic contract caller binding to set the session for
   154  	  CallOpts bind.CallOpts    // Call options to use throughout this session
   155  	}
   156  
   157  	// {{.Type}}TransactorSession is an auto generated write-only Go binding around an Ethereum contract,
   158  	// with pre-set transact options.
   159  	type {{.Type}}TransactorSession struct {
   160  	  Contract     *{{.Type}}Transactor // Generic contract transactor binding to set the session for
   161  	  TransactOpts bind.TransactOpts    // Transaction auth options to use throughout this session
   162  	}
   163  
   164  	// {{.Type}}Raw is an auto generated low-level Go binding around an Ethereum contract.
   165  	type {{.Type}}Raw struct {
   166  	  Contract *{{.Type}} // Generic contract binding to access the raw methods on
   167  	}
   168  
   169  	// {{.Type}}CallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
   170  	type {{.Type}}CallerRaw struct {
   171  		Contract *{{.Type}}Caller // Generic read-only contract binding to access the raw methods on
   172  	}
   173  
   174  	// {{.Type}}TransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
   175  	type {{.Type}}TransactorRaw struct {
   176  		Contract *{{.Type}}Transactor // Generic write-only contract binding to access the raw methods on
   177  	}
   178  
   179  	// New{{.Type}} creates a new instance of {{.Type}}, bound to a specific deployed contract.
   180  	func New{{.Type}}(address common.Address, backend bind.ContractBackend) (*{{.Type}}, error) {
   181  	  contract, err := bind{{.Type}}(address, backend, backend, backend)
   182  	  if err != nil {
   183  	    return nil, err
   184  	  }
   185  	  return &{{.Type}}{ {{.Type}}Caller: {{.Type}}Caller{contract: contract}, {{.Type}}Transactor: {{.Type}}Transactor{contract: contract}, {{.Type}}Filterer: {{.Type}}Filterer{contract: contract} }, nil
   186  	}
   187  
   188  	// New{{.Type}}Caller creates a new read-only instance of {{.Type}}, bound to a specific deployed contract.
   189  	func New{{.Type}}Caller(address common.Address, caller bind.ContractCaller) (*{{.Type}}Caller, error) {
   190  	  contract, err := bind{{.Type}}(address, caller, nil, nil)
   191  	  if err != nil {
   192  	    return nil, err
   193  	  }
   194  	  return &{{.Type}}Caller{contract: contract}, nil
   195  	}
   196  
   197  	// New{{.Type}}Transactor creates a new write-only instance of {{.Type}}, bound to a specific deployed contract.
   198  	func New{{.Type}}Transactor(address common.Address, transactor bind.ContractTransactor) (*{{.Type}}Transactor, error) {
   199  	  contract, err := bind{{.Type}}(address, nil, transactor, nil)
   200  	  if err != nil {
   201  	    return nil, err
   202  	  }
   203  	  return &{{.Type}}Transactor{contract: contract}, nil
   204  	}
   205  
   206  	// New{{.Type}}Filterer creates a new log filterer instance of {{.Type}}, bound to a specific deployed contract.
   207   	func New{{.Type}}Filterer(address common.Address, filterer bind.ContractFilterer) (*{{.Type}}Filterer, error) {
   208   	  contract, err := bind{{.Type}}(address, nil, nil, filterer)
   209   	  if err != nil {
   210   	    return nil, err
   211   	  }
   212   	  return &{{.Type}}Filterer{contract: contract}, nil
   213   	}
   214  
   215  	// bind{{.Type}} binds a generic wrapper to an already deployed contract.
   216  	func bind{{.Type}}(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor, filterer bind.ContractFilterer) (*bind.BoundContract, error) {
   217  	  parsed, err := abi.JSON(strings.NewReader({{.Type}}ABI))
   218  	  if err != nil {
   219  	    return nil, err
   220  	  }
   221  	  return bind.NewBoundContract(address, parsed, caller, transactor, filterer), nil
   222  	}
   223  
   224  	// Call invokes the (constant) contract method with params as input values and
   225  	// sets the output to result. The result type might be a single field for simple
   226  	// returns, a slice of interfaces for anonymous returns and a struct for named
   227  	// returns.
   228  	func (_{{$contract.Type}} *{{$contract.Type}}Raw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
   229  		return _{{$contract.Type}}.Contract.{{$contract.Type}}Caller.contract.Call(opts, result, method, params...)
   230  	}
   231  
   232  	// Transfer initiates a plain transaction to move funds to the contract, calling
   233  	// its default method if one is available.
   234  	func (_{{$contract.Type}} *{{$contract.Type}}Raw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
   235  		return _{{$contract.Type}}.Contract.{{$contract.Type}}Transactor.contract.Transfer(opts)
   236  	}
   237  
   238  	// Transact invokes the (paid) contract method with params as input values.
   239  	func (_{{$contract.Type}} *{{$contract.Type}}Raw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
   240  		return _{{$contract.Type}}.Contract.{{$contract.Type}}Transactor.contract.Transact(opts, method, params...)
   241  	}
   242  
   243  	// Call invokes the (constant) contract method with params as input values and
   244  	// sets the output to result. The result type might be a single field for simple
   245  	// returns, a slice of interfaces for anonymous returns and a struct for named
   246  	// returns.
   247  	func (_{{$contract.Type}} *{{$contract.Type}}CallerRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
   248  		return _{{$contract.Type}}.Contract.contract.Call(opts, result, method, params...)
   249  	}
   250  
   251  	// Transfer initiates a plain transaction to move funds to the contract, calling
   252  	// its default method if one is available.
   253  	func (_{{$contract.Type}} *{{$contract.Type}}TransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
   254  		return _{{$contract.Type}}.Contract.contract.Transfer(opts)
   255  	}
   256  
   257  	// Transact invokes the (paid) contract method with params as input values.
   258  	func (_{{$contract.Type}} *{{$contract.Type}}TransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
   259  		return _{{$contract.Type}}.Contract.contract.Transact(opts, method, params...)
   260  	}
   261  
   262  	{{range .Calls}}
   263  		// {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.Id}}.
   264  		//
   265  		// Solidity: {{.Original.String}}
   266  		func (_{{$contract.Type}} *{{$contract.Type}}Caller) {{.Normalized.Name}}(opts *bind.CallOpts {{range .Normalized.Inputs}}, {{.Name}} {{bindtype .Type}} {{end}}) ({{if .Structured}}struct{ {{range .Normalized.Outputs}}{{.Name}} {{bindtype .Type}};{{end}} },{{else}}{{range .Normalized.Outputs}}{{bindtype .Type}},{{end}}{{end}} error) {
   267  			{{if .Structured}}ret := new(struct{
   268  				{{range .Normalized.Outputs}}{{.Name}} {{bindtype .Type}}
   269  				{{end}}
   270  			}){{else}}var (
   271  				{{range $i, $_ := .Normalized.Outputs}}ret{{$i}} = new({{bindtype .Type}})
   272  				{{end}}
   273  			){{end}}
   274  			out := {{if .Structured}}ret{{else}}{{if eq (len .Normalized.Outputs) 1}}ret0{{else}}&[]interface{}{
   275  				{{range $i, $_ := .Normalized.Outputs}}ret{{$i}},
   276  				{{end}}
   277  			}{{end}}{{end}}
   278  			err := _{{$contract.Type}}.contract.Call(opts, out, "{{.Original.Name}}" {{range .Normalized.Inputs}}, {{.Name}}{{end}})
   279  			return {{if .Structured}}*ret,{{else}}{{range $i, $_ := .Normalized.Outputs}}*ret{{$i}},{{end}}{{end}} err
   280  		}
   281  
   282  		// {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.Id}}.
   283  		//
   284  		// Solidity: {{.Original.String}}
   285  		func (_{{$contract.Type}} *{{$contract.Type}}Session) {{.Normalized.Name}}({{range $i, $_ := .Normalized.Inputs}}{{if ne $i 0}},{{end}} {{.Name}} {{bindtype .Type}} {{end}}) ({{if .Structured}}struct{ {{range .Normalized.Outputs}}{{.Name}} {{bindtype .Type}};{{end}} }, {{else}} {{range .Normalized.Outputs}}{{bindtype .Type}},{{end}} {{end}} error) {
   286  		  return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.CallOpts {{range .Normalized.Inputs}}, {{.Name}}{{end}})
   287  		}
   288  
   289  		// {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.Id}}.
   290  		//
   291  		// Solidity: {{.Original.String}}
   292  		func (_{{$contract.Type}} *{{$contract.Type}}CallerSession) {{.Normalized.Name}}({{range $i, $_ := .Normalized.Inputs}}{{if ne $i 0}},{{end}} {{.Name}} {{bindtype .Type}} {{end}}) ({{if .Structured}}struct{ {{range .Normalized.Outputs}}{{.Name}} {{bindtype .Type}};{{end}} }, {{else}} {{range .Normalized.Outputs}}{{bindtype .Type}},{{end}} {{end}} error) {
   293  		  return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.CallOpts {{range .Normalized.Inputs}}, {{.Name}}{{end}})
   294  		}
   295  	{{end}}
   296  
   297  	{{range .Transacts}}
   298  		// {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.Id}}.
   299  		//
   300  		// Solidity: {{.Original.String}}
   301  		func (_{{$contract.Type}} *{{$contract.Type}}Transactor) {{.Normalized.Name}}(opts *bind.TransactOpts {{range .Normalized.Inputs}}, {{.Name}} {{bindtype .Type}} {{end}}) (*types.Transaction, error) {
   302  			return _{{$contract.Type}}.contract.Transact(opts, "{{.Original.Name}}" {{range .Normalized.Inputs}}, {{.Name}}{{end}})
   303  		}
   304  
   305  		// {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.Id}}.
   306  		//
   307  		// Solidity: {{.Original.String}}
   308  		func (_{{$contract.Type}} *{{$contract.Type}}Session) {{.Normalized.Name}}({{range $i, $_ := .Normalized.Inputs}}{{if ne $i 0}},{{end}} {{.Name}} {{bindtype .Type}} {{end}}) (*types.Transaction, error) {
   309  		  return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.TransactOpts {{range $i, $_ := .Normalized.Inputs}}, {{.Name}}{{end}})
   310  		}
   311  
   312  		// {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.Id}}.
   313  		//
   314  		// Solidity: {{.Original.String}}
   315  		func (_{{$contract.Type}} *{{$contract.Type}}TransactorSession) {{.Normalized.Name}}({{range $i, $_ := .Normalized.Inputs}}{{if ne $i 0}},{{end}} {{.Name}} {{bindtype .Type}} {{end}}) (*types.Transaction, error) {
   316  		  return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.TransactOpts {{range $i, $_ := .Normalized.Inputs}}, {{.Name}}{{end}})
   317  		}
   318  	{{end}}
   319  
   320  	{{range .Events}}
   321  		// {{$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 {{$contract.Type}} contract.
   322  		type {{$contract.Type}}{{.Normalized.Name}}Iterator struct {
   323  			Event *{{$contract.Type}}{{.Normalized.Name}} // Event containing the contract specifics and raw log
   324  
   325  			contract *bind.BoundContract // Generic contract to use for unpacking event data
   326  			event    string              // Event name to use for unpacking event data
   327  
   328  			logs chan types.Log        // Log channel receiving the found contract events
   329  			sub  ethereum.Subscription // Subscription for errors, completion and termination
   330  			done bool                  // Whether the subscription completed delivering logs
   331  			fail error                 // Occurred error to stop iteration
   332  		}
   333  		// Next advances the iterator to the subsequent event, returning whether there
   334  		// are any more events found. In case of a retrieval or parsing error, false is
   335  		// returned and Error() can be queried for the exact failure.
   336  		func (it *{{$contract.Type}}{{.Normalized.Name}}Iterator) Next() bool {
   337  			// If the iterator failed, stop iterating
   338  			if (it.fail != nil) {
   339  				return false
   340  			}
   341  			// If the iterator completed, deliver directly whatever's available
   342  			if (it.done) {
   343  				select {
   344  				case log := <-it.logs:
   345  					it.Event = new({{$contract.Type}}{{.Normalized.Name}})
   346  					if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
   347  						it.fail = err
   348  						return false
   349  					}
   350  					it.Event.Raw = log
   351  					return true
   352  
   353  				default:
   354  					return false
   355  				}
   356  			}
   357  			// Iterator still in progress, wait for either a data or an error event
   358  			select {
   359  			case log := <-it.logs:
   360  				it.Event = new({{$contract.Type}}{{.Normalized.Name}})
   361  				if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
   362  					it.fail = err
   363  					return false
   364  				}
   365  				it.Event.Raw = log
   366  				return true
   367  
   368  			case err := <-it.sub.Err():
   369  				it.done = true
   370  				it.fail = err
   371  				return it.Next()
   372  			}
   373  		}
   374  		// Error returns any retrieval or parsing error occurred during filtering.
   375  		func (it *{{$contract.Type}}{{.Normalized.Name}}Iterator) Error() error {
   376  			return it.fail
   377  		}
   378  		// Close terminates the iteration process, releasing any pending underlying
   379  		// resources.
   380  		func (it *{{$contract.Type}}{{.Normalized.Name}}Iterator) Close() error {
   381  			it.sub.Unsubscribe()
   382  			return nil
   383  		}
   384  
   385  		// {{$contract.Type}}{{.Normalized.Name}} represents a {{.Normalized.Name}} event raised by the {{$contract.Type}} contract.
   386  		type {{$contract.Type}}{{.Normalized.Name}} struct { {{range .Normalized.Inputs}}
   387  			{{capitalise .Name}} {{if .Indexed}}{{bindtopictype .Type}}{{else}}{{bindtype .Type}}{{end}}; {{end}}
   388  			Raw types.Log // Blockchain specific contextual infos
   389  		}
   390  
   391  		// Filter{{.Normalized.Name}} is a free log retrieval operation binding the contract event 0x{{printf "%x" .Original.Id}}.
   392  		//
   393  		// Solidity: {{.Original.String}}
   394   		func (_{{$contract.Type}} *{{$contract.Type}}Filterer) Filter{{.Normalized.Name}}(opts *bind.FilterOpts{{range .Normalized.Inputs}}{{if .Indexed}}, {{.Name}} []{{bindtype .Type}}{{end}}{{end}}) (*{{$contract.Type}}{{.Normalized.Name}}Iterator, error) {
   395  			{{range .Normalized.Inputs}}
   396  			{{if .Indexed}}var {{.Name}}Rule []interface{}
   397  			for _, {{.Name}}Item := range {{.Name}} {
   398  				{{.Name}}Rule = append({{.Name}}Rule, {{.Name}}Item)
   399  			}{{end}}{{end}}
   400  
   401  			logs, sub, err := _{{$contract.Type}}.contract.FilterLogs(opts, "{{.Original.Name}}"{{range .Normalized.Inputs}}{{if .Indexed}}, {{.Name}}Rule{{end}}{{end}})
   402  			if err != nil {
   403  				return nil, err
   404  			}
   405  			return &{{$contract.Type}}{{.Normalized.Name}}Iterator{contract: _{{$contract.Type}}.contract, event: "{{.Original.Name}}", logs: logs, sub: sub}, nil
   406   		}
   407  
   408  		// Watch{{.Normalized.Name}} is a free log subscription operation binding the contract event 0x{{printf "%x" .Original.Id}}.
   409  		//
   410  		// Solidity: {{.Original.String}}
   411  		func (_{{$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}}{{end}}{{end}}) (event.Subscription, error) {
   412  			{{range .Normalized.Inputs}}
   413  			{{if .Indexed}}var {{.Name}}Rule []interface{}
   414  			for _, {{.Name}}Item := range {{.Name}} {
   415  				{{.Name}}Rule = append({{.Name}}Rule, {{.Name}}Item)
   416  			}{{end}}{{end}}
   417  
   418  			logs, sub, err := _{{$contract.Type}}.contract.WatchLogs(opts, "{{.Original.Name}}"{{range .Normalized.Inputs}}{{if .Indexed}}, {{.Name}}Rule{{end}}{{end}})
   419  			if err != nil {
   420  				return nil, err
   421  			}
   422  			return event.NewSubscription(func(quit <-chan struct{}) error {
   423  				defer sub.Unsubscribe()
   424  				for {
   425  					select {
   426  					case log := <-logs:
   427  						// New log arrived, parse the event and forward to the user
   428  						event := new({{$contract.Type}}{{.Normalized.Name}})
   429  						if err := _{{$contract.Type}}.contract.UnpackLog(event, "{{.Original.Name}}", log); err != nil {
   430  							return err
   431  						}
   432  						event.Raw = log
   433  
   434  						select {
   435  						case sink <- event:
   436  						case err := <-sub.Err():
   437  							return err
   438  						case <-quit:
   439  							return nil
   440  						}
   441  					case err := <-sub.Err():
   442  						return err
   443  					case <-quit:
   444  						return nil
   445  					}
   446  				}
   447  			}), nil
   448  		}
   449   	{{end}}
   450  {{end}}
   451  `
   452  
   453  // tmplSourceJava is the Java source template use to generate the contract binding
   454  // based on.
   455  const tmplSourceJava = `
   456  // This file is an automatically generated Java binding. Do not modify as any
   457  // change will likely be lost upon the next re-generation!
   458  
   459  package {{.Package}};
   460  
   461  import org.ethereum.geth.*;
   462  import org.ethereum.geth.internal.*;
   463  
   464  {{range $contract := .Contracts}}
   465  	public class {{.Type}} {
   466  		// ABI is the input ABI used to generate the binding from.
   467  		public final static String ABI = "{{.InputABI}}";
   468  
   469  		{{if .InputBin}}
   470  			// BYTECODE is the compiled bytecode used for deploying new contracts.
   471  			public final static byte[] BYTECODE = "{{.InputBin}}".getBytes();
   472  
   473  			// deploy deploys a new Ethereum contract, binding an instance of {{.Type}} to it.
   474  			public static {{.Type}} deploy(TransactOpts auth, EthereumClient client{{range .Constructor.Inputs}}, {{bindtype .Type}} {{.Name}}{{end}}) throws Exception {
   475  				Interfaces args = Geth.newInterfaces({{(len .Constructor.Inputs)}});
   476  				{{range $index, $element := .Constructor.Inputs}}
   477  				  args.set({{$index}}, Geth.newInterface()); args.get({{$index}}).set{{namedtype (bindtype .Type) .Type}}({{.Name}});
   478  				{{end}}
   479  				return new {{.Type}}(Geth.deployContract(auth, ABI, BYTECODE, client, args));
   480  			}
   481  
   482  			// Internal constructor used by contract deployment.
   483  			private {{.Type}}(BoundContract deployment) {
   484  				this.Address  = deployment.getAddress();
   485  				this.Deployer = deployment.getDeployer();
   486  				this.Contract = deployment;
   487  			}
   488  		{{end}}
   489  
   490  		// Ethereum address where this contract is located at.
   491  		public final Address Address;
   492  
   493  		// Ethereum transaction in which this contract was deployed (if known!).
   494  		public final Transaction Deployer;
   495  
   496  		// Contract instance bound to a blockchain address.
   497  		private final BoundContract Contract;
   498  
   499  		// Creates a new instance of {{.Type}}, bound to a specific deployed contract.
   500  		public {{.Type}}(Address address, EthereumClient client) throws Exception {
   501  			this(Geth.bindContract(address, ABI, client));
   502  		}
   503  
   504  		{{range .Calls}}
   505  			{{if gt (len .Normalized.Outputs) 1}}
   506  			// {{capitalise .Normalized.Name}}Results is the output of a call to {{.Normalized.Name}}.
   507  			public class {{capitalise .Normalized.Name}}Results {
   508  				{{range $index, $item := .Normalized.Outputs}}public {{bindtype .Type}} {{if ne .Name ""}}{{.Name}}{{else}}Return{{$index}}{{end}};
   509  				{{end}}
   510  			}
   511  			{{end}}
   512  
   513  			// {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.Id}}.
   514  			//
   515  			// Solidity: {{.Original.String}}
   516  			public {{if gt (len .Normalized.Outputs) 1}}{{capitalise .Normalized.Name}}Results{{else}}{{range .Normalized.Outputs}}{{bindtype .Type}}{{end}}{{end}} {{.Normalized.Name}}(CallOpts opts{{range .Normalized.Inputs}}, {{bindtype .Type}} {{.Name}}{{end}}) throws Exception {
   517  				Interfaces args = Geth.newInterfaces({{(len .Normalized.Inputs)}});
   518  				{{range $index, $item := .Normalized.Inputs}}args.set({{$index}}, Geth.newInterface()); args.get({{$index}}).set{{namedtype (bindtype .Type) .Type}}({{.Name}});
   519  				{{end}}
   520  
   521  				Interfaces results = Geth.newInterfaces({{(len .Normalized.Outputs)}});
   522  				{{range $index, $item := .Normalized.Outputs}}Interface result{{$index}} = Geth.newInterface(); result{{$index}}.setDefault{{namedtype (bindtype .Type) .Type}}(); results.set({{$index}}, result{{$index}});
   523  				{{end}}
   524  
   525  				if (opts == null) {
   526  					opts = Geth.newCallOpts();
   527  				}
   528  				this.Contract.call(opts, results, "{{.Original.Name}}", args);
   529  				{{if gt (len .Normalized.Outputs) 1}}
   530  					{{capitalise .Normalized.Name}}Results result = new {{capitalise .Normalized.Name}}Results();
   531  					{{range $index, $item := .Normalized.Outputs}}result.{{if ne .Name ""}}{{.Name}}{{else}}Return{{$index}}{{end}} = results.get({{$index}}).get{{namedtype (bindtype .Type) .Type}}();
   532  					{{end}}
   533  					return result;
   534  				{{else}}{{range .Normalized.Outputs}}return results.get(0).get{{namedtype (bindtype .Type) .Type}}();{{end}}
   535  				{{end}}
   536  			}
   537  		{{end}}
   538  
   539  		{{range .Transacts}}
   540  			// {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.Id}}.
   541  			//
   542  			// Solidity: {{.Original.String}}
   543  			public Transaction {{.Normalized.Name}}(TransactOpts opts{{range .Normalized.Inputs}}, {{bindtype .Type}} {{.Name}}{{end}}) throws Exception {
   544  				Interfaces args = Geth.newInterfaces({{(len .Normalized.Inputs)}});
   545  				{{range $index, $item := .Normalized.Inputs}}args.set({{$index}}, Geth.newInterface()); args.get({{$index}}).set{{namedtype (bindtype .Type) .Type}}({{.Name}});
   546  				{{end}}
   547  
   548  				return this.Contract.transact(opts, "{{.Original.Name}}"	, args);
   549  			}
   550  		{{end}}
   551  	}
   552  {{end}}
   553  `