github.com/ConsenSys/Quorum@v20.10.0+incompatible/accounts/abi/bind/template.go (about)

     1  // Copyright 2016 The go-ethereum Authors
     2  // This file is part of the go-ethereum library.
     3  //
     4  // The go-ethereum library is free software: you can redistribute it and/or modify
     5  // it under the terms of the GNU Lesser General Public License as published by
     6  // the Free Software Foundation, either version 3 of the License, or
     7  // (at your option) any later version.
     8  //
     9  // The go-ethereum library is distributed in the hope that it will be useful,
    10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    12  // GNU Lesser General Public License for more details.
    13  //
    14  // You should have received a copy of the GNU Lesser General Public License
    15  // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
    16  
    17  package bind
    18  
    19  import "github.com/ethereum/go-ethereum/accounts/abi"
    20  
    21  // tmplData is the data structure required to fill the binding template.
    22  type tmplData struct {
    23  	Package   string                   // Name of the package to place the generated file in
    24  	Contracts map[string]*tmplContract // List of contracts to generate into this file
    25  	Libraries map[string]string        // Map the bytecode's link pattern to the library name
    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  	FuncSigs    map[string]string      // Optional map: string signature -> 4-byte signature
    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  	Libraries   map[string]string      // Same as tmplData, but filtered to only keep what the contract needs
    39  	Structs     map[string]*tmplStruct // Contract struct type definitions
    40  	Library     bool
    41  }
    42  
    43  // tmplMethod is a wrapper around an abi.Method that contains a few preprocessed
    44  // and cached data fields.
    45  type tmplMethod struct {
    46  	Original   abi.Method // Original method as parsed by the abi package
    47  	Normalized abi.Method // Normalized version of the parsed method (capitalized names, non-anonymous args/returns)
    48  	Structured bool       // Whether the returns should be accumulated into a struct
    49  }
    50  
    51  // tmplEvent is a wrapper around an a
    52  type tmplEvent struct {
    53  	Original   abi.Event // Original event as parsed by the abi package
    54  	Normalized abi.Event // Normalized version of the parsed fields
    55  }
    56  
    57  // tmplField is a wrapper around a struct field with binding language
    58  // struct type definition and relative filed name.
    59  type tmplField struct {
    60  	Type    string   // Field type representation depends on target binding language
    61  	Name    string   // Field name converted from the raw user-defined field name
    62  	SolKind abi.Type // Raw abi type information
    63  }
    64  
    65  // tmplStruct is a wrapper around an abi.tuple contains a auto-generated
    66  // struct name.
    67  type tmplStruct struct {
    68  	Name   string       // Auto-generated struct name(before solidity v0.5.11) or raw name.
    69  	Fields []*tmplField // Struct fields definition depends on the binding language.
    70  }
    71  
    72  // tmplSource is language to template mapping containing all the supported
    73  // programming languages the package can generate to.
    74  var tmplSource = map[Lang]string{
    75  	LangGo:   tmplSourceGo,
    76  	LangJava: tmplSourceJava,
    77  }
    78  
    79  // tmplSourceGo is the Go source template use to generate the contract binding
    80  // based on.
    81  const tmplSourceGo = `
    82  // Code generated - DO NOT EDIT.
    83  // This file is a generated binding and any manual changes will be lost.
    84  
    85  package {{.Package}}
    86  
    87  import (
    88  	"math/big"
    89  	"strings"
    90  
    91  	ethereum "github.com/ethereum/go-ethereum"
    92  	"github.com/ethereum/go-ethereum/accounts/abi"
    93  	"github.com/ethereum/go-ethereum/accounts/abi/bind"
    94  	"github.com/ethereum/go-ethereum/common"
    95  	"github.com/ethereum/go-ethereum/core/types"
    96  	"github.com/ethereum/go-ethereum/event"
    97  )
    98  
    99  // Reference imports to suppress errors if they are not otherwise used.
   100  var (
   101  	_ = big.NewInt
   102  	_ = strings.NewReader
   103  	_ = ethereum.NotFound
   104  	_ = abi.U256
   105  	_ = bind.Bind
   106  	_ = common.Big1
   107  	_ = types.BloomLookup
   108  	_ = event.NewSubscription
   109  )
   110  
   111  {{range $contract := .Contracts}}
   112  	{{$structs := $contract.Structs}}
   113  	// {{.Type}}ABI is the input ABI used to generate the binding from.
   114  	const {{.Type}}ABI = "{{.InputABI}}"
   115  
   116  	var {{.Type}}ParsedABI, _ = abi.JSON(strings.NewReader({{.Type}}ABI))
   117  
   118  	{{if $contract.FuncSigs}}
   119  		// {{.Type}}FuncSigs maps the 4-byte function signature to its string representation.
   120  		var {{.Type}}FuncSigs = map[string]string{
   121  			{{range $strsig, $binsig := .FuncSigs}}"{{$binsig}}": "{{$strsig}}",
   122  			{{end}}
   123  		}
   124  	{{end}}
   125  
   126  	{{if .InputBin}}
   127  		// {{.Type}}Bin is the compiled bytecode used for deploying new contracts.
   128  		var {{.Type}}Bin = "0x{{.InputBin}}"
   129  
   130  		// Deploy{{.Type}} deploys a new Ethereum contract, binding an instance of {{.Type}} to it.
   131  		func Deploy{{.Type}}(auth *bind.TransactOpts, backend bind.ContractBackend {{range .Constructor.Inputs}}, {{.Name}} {{bindtype .Type $structs}}{{end}}) (common.Address, *types.Transaction, *{{.Type}}, error) {
   132  		  parsed, err := abi.JSON(strings.NewReader({{.Type}}ABI))
   133  		  if err != nil {
   134  		    return common.Address{}, nil, nil, err
   135  		  }
   136  		  {{range $pattern, $name := .Libraries}}
   137  			{{decapitalise $name}}Addr, _, _, _ := Deploy{{capitalise $name}}(auth, backend)
   138  			{{$contract.Type}}Bin = strings.Replace({{$contract.Type}}Bin, "__${{$pattern}}$__", {{decapitalise $name}}Addr.String()[2:], -1)
   139  		  {{end}}
   140  		  address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex({{.Type}}Bin), backend {{range .Constructor.Inputs}}, {{.Name}}{{end}})
   141  		  if err != nil {
   142  		    return common.Address{}, nil, nil, err
   143  		  }
   144  		  return address, tx, &{{.Type}}{ {{.Type}}Caller: {{.Type}}Caller{contract: contract}, {{.Type}}Transactor: {{.Type}}Transactor{contract: contract}, {{.Type}}Filterer: {{.Type}}Filterer{contract: contract} }, nil
   145  		}
   146  	{{end}}
   147  
   148  	// {{.Type}} is an auto generated Go binding around an Ethereum contract.
   149  	type {{.Type}} struct {
   150  	  {{.Type}}Caller     // Read-only binding to the contract
   151  	  {{.Type}}Transactor // Write-only binding to the contract
   152  	  {{.Type}}Filterer   // Log filterer for contract events
   153  	}
   154  
   155  	// {{.Type}}Caller is an auto generated read-only Go binding around an Ethereum contract.
   156  	type {{.Type}}Caller struct {
   157  	  contract *bind.BoundContract // Generic contract wrapper for the low level calls
   158  	}
   159  
   160  	// {{.Type}}Transactor is an auto generated write-only Go binding around an Ethereum contract.
   161  	type {{.Type}}Transactor struct {
   162  	  contract *bind.BoundContract // Generic contract wrapper for the low level calls
   163  	}
   164  
   165  	// {{.Type}}Filterer is an auto generated log filtering Go binding around an Ethereum contract events.
   166  	type {{.Type}}Filterer struct {
   167  	  contract *bind.BoundContract // Generic contract wrapper for the low level calls
   168  	}
   169  
   170  	// {{.Type}}Session is an auto generated Go binding around an Ethereum contract,
   171  	// with pre-set call and transact options.
   172  	type {{.Type}}Session struct {
   173  	  Contract     *{{.Type}}        // Generic contract binding to set the session for
   174  	  CallOpts     bind.CallOpts     // Call options to use throughout this session
   175  	  TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
   176  	}
   177  
   178  	// {{.Type}}CallerSession is an auto generated read-only Go binding around an Ethereum contract,
   179  	// with pre-set call options.
   180  	type {{.Type}}CallerSession struct {
   181  	  Contract *{{.Type}}Caller // Generic contract caller binding to set the session for
   182  	  CallOpts bind.CallOpts    // Call options to use throughout this session
   183  	}
   184  
   185  	// {{.Type}}TransactorSession is an auto generated write-only Go binding around an Ethereum contract,
   186  	// with pre-set transact options.
   187  	type {{.Type}}TransactorSession struct {
   188  	  Contract     *{{.Type}}Transactor // Generic contract transactor binding to set the session for
   189  	  TransactOpts bind.TransactOpts    // Transaction auth options to use throughout this session
   190  	}
   191  
   192  	// {{.Type}}Raw is an auto generated low-level Go binding around an Ethereum contract.
   193  	type {{.Type}}Raw struct {
   194  	  Contract *{{.Type}} // Generic contract binding to access the raw methods on
   195  	}
   196  
   197  	// {{.Type}}CallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
   198  	type {{.Type}}CallerRaw struct {
   199  		Contract *{{.Type}}Caller // Generic read-only contract binding to access the raw methods on
   200  	}
   201  
   202  	// {{.Type}}TransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
   203  	type {{.Type}}TransactorRaw struct {
   204  		Contract *{{.Type}}Transactor // Generic write-only contract binding to access the raw methods on
   205  	}
   206  
   207  	// New{{.Type}} creates a new instance of {{.Type}}, bound to a specific deployed contract.
   208  	func New{{.Type}}(address common.Address, backend bind.ContractBackend) (*{{.Type}}, error) {
   209  	  contract, err := bind{{.Type}}(address, backend, backend, backend)
   210  	  if err != nil {
   211  	    return nil, err
   212  	  }
   213  	  return &{{.Type}}{ {{.Type}}Caller: {{.Type}}Caller{contract: contract}, {{.Type}}Transactor: {{.Type}}Transactor{contract: contract}, {{.Type}}Filterer: {{.Type}}Filterer{contract: contract} }, nil
   214  	}
   215  
   216  	// New{{.Type}}Caller creates a new read-only instance of {{.Type}}, bound to a specific deployed contract.
   217  	func New{{.Type}}Caller(address common.Address, caller bind.ContractCaller) (*{{.Type}}Caller, error) {
   218  	  contract, err := bind{{.Type}}(address, caller, nil, nil)
   219  	  if err != nil {
   220  	    return nil, err
   221  	  }
   222  	  return &{{.Type}}Caller{contract: contract}, nil
   223  	}
   224  
   225  	// New{{.Type}}Transactor creates a new write-only instance of {{.Type}}, bound to a specific deployed contract.
   226  	func New{{.Type}}Transactor(address common.Address, transactor bind.ContractTransactor) (*{{.Type}}Transactor, error) {
   227  	  contract, err := bind{{.Type}}(address, nil, transactor, nil)
   228  	  if err != nil {
   229  	    return nil, err
   230  	  }
   231  	  return &{{.Type}}Transactor{contract: contract}, nil
   232  	}
   233  
   234  	// New{{.Type}}Filterer creates a new log filterer instance of {{.Type}}, bound to a specific deployed contract.
   235   	func New{{.Type}}Filterer(address common.Address, filterer bind.ContractFilterer) (*{{.Type}}Filterer, error) {
   236   	  contract, err := bind{{.Type}}(address, nil, nil, filterer)
   237   	  if err != nil {
   238   	    return nil, err
   239   	  }
   240   	  return &{{.Type}}Filterer{contract: contract}, nil
   241   	}
   242  
   243  	// bind{{.Type}} binds a generic wrapper to an already deployed contract.
   244  	func bind{{.Type}}(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor, filterer bind.ContractFilterer) (*bind.BoundContract, error) {
   245  	  parsed, err := abi.JSON(strings.NewReader({{.Type}}ABI))
   246  	  if err != nil {
   247  	    return nil, err
   248  	  }
   249  	  return bind.NewBoundContract(address, parsed, caller, transactor, filterer), nil
   250  	}
   251  
   252  	// Call invokes the (constant) contract method with params as input values and
   253  	// sets the output to result. The result type might be a single field for simple
   254  	// returns, a slice of interfaces for anonymous returns and a struct for named
   255  	// returns.
   256  	func (_{{$contract.Type}} *{{$contract.Type}}Raw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
   257  		return _{{$contract.Type}}.Contract.{{$contract.Type}}Caller.contract.Call(opts, result, method, params...)
   258  	}
   259  
   260  	// Transfer initiates a plain transaction to move funds to the contract, calling
   261  	// its default method if one is available.
   262  	func (_{{$contract.Type}} *{{$contract.Type}}Raw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
   263  		return _{{$contract.Type}}.Contract.{{$contract.Type}}Transactor.contract.Transfer(opts)
   264  	}
   265  
   266  	// Transact invokes the (paid) contract method with params as input values.
   267  	func (_{{$contract.Type}} *{{$contract.Type}}Raw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
   268  		return _{{$contract.Type}}.Contract.{{$contract.Type}}Transactor.contract.Transact(opts, method, params...)
   269  	}
   270  
   271  	// Call invokes the (constant) contract method with params as input values and
   272  	// sets the output to result. The result type might be a single field for simple
   273  	// returns, a slice of interfaces for anonymous returns and a struct for named
   274  	// returns.
   275  	func (_{{$contract.Type}} *{{$contract.Type}}CallerRaw) Call(opts *bind.CallOpts, result interface{}, method string, params ...interface{}) error {
   276  		return _{{$contract.Type}}.Contract.contract.Call(opts, result, method, params...)
   277  	}
   278  
   279  	// Transfer initiates a plain transaction to move funds to the contract, calling
   280  	// its default method if one is available.
   281  	func (_{{$contract.Type}} *{{$contract.Type}}TransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
   282  		return _{{$contract.Type}}.Contract.contract.Transfer(opts)
   283  	}
   284  
   285  	// Transact invokes the (paid) contract method with params as input values.
   286  	func (_{{$contract.Type}} *{{$contract.Type}}TransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
   287  		return _{{$contract.Type}}.Contract.contract.Transact(opts, method, params...)
   288  	}
   289  
   290  	{{range .Structs}}
   291  		// {{.Name}} is an auto generated low-level Go binding around an user-defined struct.
   292  		type {{.Name}} struct {
   293  		{{range $field := .Fields}}
   294  		{{$field.Name}} {{$field.Type}}{{end}}
   295  		}
   296  	{{end}}
   297  
   298  	{{range .Calls}}
   299  		// {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.ID}}.
   300  		//
   301  		// Solidity: {{formatmethod .Original $structs}}
   302  		func (_{{$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) {
   303  			{{if .Structured}}ret := new(struct{
   304  				{{range .Normalized.Outputs}}{{.Name}} {{bindtype .Type $structs}}
   305  				{{end}}
   306  			}){{else}}var (
   307  				{{range $i, $_ := .Normalized.Outputs}}ret{{$i}} = new({{bindtype .Type $structs}})
   308  				{{end}}
   309  			){{end}}
   310  			out := {{if .Structured}}ret{{else}}{{if eq (len .Normalized.Outputs) 1}}ret0{{else}}&[]interface{}{
   311  				{{range $i, $_ := .Normalized.Outputs}}ret{{$i}},
   312  				{{end}}
   313  			}{{end}}{{end}}
   314  			err := _{{$contract.Type}}.contract.Call(opts, out, "{{.Original.Name}}" {{range .Normalized.Inputs}}, {{.Name}}{{end}})
   315  			return {{if .Structured}}*ret,{{else}}{{range $i, $_ := .Normalized.Outputs}}*ret{{$i}},{{end}}{{end}} err
   316  		}
   317  
   318  		// {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.ID}}.
   319  		//
   320  		// Solidity: {{formatmethod .Original $structs}}
   321  		func (_{{$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 $structs}},{{end}} {{end}} error) {
   322  		  return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.CallOpts {{range .Normalized.Inputs}}, {{.Name}}{{end}})
   323  		}
   324  
   325  		// {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.ID}}.
   326  		//
   327  		// Solidity: {{formatmethod .Original $structs}}
   328  		func (_{{$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 $structs}},{{end}} {{end}} error) {
   329  		  return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.CallOpts {{range .Normalized.Inputs}}, {{.Name}}{{end}})
   330  		}
   331  	{{end}}
   332  
   333  	{{range .Transacts}}
   334  		// {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.ID}}.
   335  		//
   336  		// Solidity: {{formatmethod .Original $structs}}
   337  		func (_{{$contract.Type}} *{{$contract.Type}}Transactor) {{.Normalized.Name}}(opts *bind.TransactOpts {{range .Normalized.Inputs}}, {{.Name}} {{bindtype .Type $structs}} {{end}}) (*types.Transaction, error) {
   338  			return _{{$contract.Type}}.contract.Transact(opts, "{{.Original.Name}}" {{range .Normalized.Inputs}}, {{.Name}}{{end}})
   339  		}
   340  
   341  		// {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.ID}}.
   342  		//
   343  		// Solidity: {{formatmethod .Original $structs}}
   344  		func (_{{$contract.Type}} *{{$contract.Type}}Session) {{.Normalized.Name}}({{range $i, $_ := .Normalized.Inputs}}{{if ne $i 0}},{{end}} {{.Name}} {{bindtype .Type $structs}} {{end}}) (*types.Transaction, error) {
   345  		  return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.TransactOpts {{range $i, $_ := .Normalized.Inputs}}, {{.Name}}{{end}})
   346  		}
   347  
   348  		// {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.ID}}.
   349  		//
   350  		// Solidity: {{formatmethod .Original $structs}}
   351  		func (_{{$contract.Type}} *{{$contract.Type}}TransactorSession) {{.Normalized.Name}}({{range $i, $_ := .Normalized.Inputs}}{{if ne $i 0}},{{end}} {{.Name}} {{bindtype .Type $structs}} {{end}}) (*types.Transaction, error) {
   352  		  return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.TransactOpts {{range $i, $_ := .Normalized.Inputs}}, {{.Name}}{{end}})
   353  		}
   354  	{{end}}
   355  
   356  	{{range .Events}}
   357  		// {{$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 {{$contract.Type}} contract.
   358  		type {{$contract.Type}}{{.Normalized.Name}}Iterator struct {
   359  			Event *{{$contract.Type}}{{.Normalized.Name}} // Event containing the contract specifics and raw log
   360  
   361  			contract *bind.BoundContract // Generic contract to use for unpacking event data
   362  			event    string              // Event name to use for unpacking event data
   363  
   364  			logs chan types.Log        // Log channel receiving the found contract events
   365  			sub  ethereum.Subscription // Subscription for errors, completion and termination
   366  			done bool                  // Whether the subscription completed delivering logs
   367  			fail error                 // Occurred error to stop iteration
   368  		}
   369  		// Next advances the iterator to the subsequent event, returning whether there
   370  		// are any more events found. In case of a retrieval or parsing error, false is
   371  		// returned and Error() can be queried for the exact failure.
   372  		func (it *{{$contract.Type}}{{.Normalized.Name}}Iterator) Next() bool {
   373  			// If the iterator failed, stop iterating
   374  			if (it.fail != nil) {
   375  				return false
   376  			}
   377  			// If the iterator completed, deliver directly whatever's available
   378  			if (it.done) {
   379  				select {
   380  				case log := <-it.logs:
   381  					it.Event = new({{$contract.Type}}{{.Normalized.Name}})
   382  					if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
   383  						it.fail = err
   384  						return false
   385  					}
   386  					it.Event.Raw = log
   387  					return true
   388  
   389  				default:
   390  					return false
   391  				}
   392  			}
   393  			// Iterator still in progress, wait for either a data or an error event
   394  			select {
   395  			case log := <-it.logs:
   396  				it.Event = new({{$contract.Type}}{{.Normalized.Name}})
   397  				if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
   398  					it.fail = err
   399  					return false
   400  				}
   401  				it.Event.Raw = log
   402  				return true
   403  
   404  			case err := <-it.sub.Err():
   405  				it.done = true
   406  				it.fail = err
   407  				return it.Next()
   408  			}
   409  		}
   410  		// Error returns any retrieval or parsing error occurred during filtering.
   411  		func (it *{{$contract.Type}}{{.Normalized.Name}}Iterator) Error() error {
   412  			return it.fail
   413  		}
   414  		// Close terminates the iteration process, releasing any pending underlying
   415  		// resources.
   416  		func (it *{{$contract.Type}}{{.Normalized.Name}}Iterator) Close() error {
   417  			it.sub.Unsubscribe()
   418  			return nil
   419  		}
   420  
   421  		// {{$contract.Type}}{{.Normalized.Name}} represents a {{.Normalized.Name}} event raised by the {{$contract.Type}} contract.
   422  		type {{$contract.Type}}{{.Normalized.Name}} struct { {{range .Normalized.Inputs}}
   423  			{{capitalise .Name}} {{if .Indexed}}{{bindtopictype .Type $structs}}{{else}}{{bindtype .Type $structs}}{{end}}; {{end}}
   424  			Raw types.Log // Blockchain specific contextual infos
   425  		}
   426  
   427  		// Filter{{.Normalized.Name}} is a free log retrieval operation binding the contract event 0x{{printf "%x" .Original.ID}}.
   428  		//
   429  		// Solidity: {{formatevent .Original $structs}}
   430   		func (_{{$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) {
   431  			{{range .Normalized.Inputs}}
   432  			{{if .Indexed}}var {{.Name}}Rule []interface{}
   433  			for _, {{.Name}}Item := range {{.Name}} {
   434  				{{.Name}}Rule = append({{.Name}}Rule, {{.Name}}Item)
   435  			}{{end}}{{end}}
   436  
   437  			logs, sub, err := _{{$contract.Type}}.contract.FilterLogs(opts, "{{.Original.Name}}"{{range .Normalized.Inputs}}{{if .Indexed}}, {{.Name}}Rule{{end}}{{end}})
   438  			if err != nil {
   439  				return nil, err
   440  			}
   441  			return &{{$contract.Type}}{{.Normalized.Name}}Iterator{contract: _{{$contract.Type}}.contract, event: "{{.Original.Name}}", logs: logs, sub: sub}, nil
   442   		}
   443  
   444  		var {{.Normalized.Name}}TopicHash = "0x{{printf "%x" .Original.ID}}"
   445  		// Watch{{.Normalized.Name}} is a free log subscription operation binding the contract event 0x{{printf "%x" .Original.ID}}.
   446  		//
   447  		// Solidity: {{formatevent .Original $structs}}
   448  		func (_{{$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 $structs}}{{end}}{{end}}) (event.Subscription, error) {
   449  			{{range .Normalized.Inputs}}
   450  			{{if .Indexed}}var {{.Name}}Rule []interface{}
   451  			for _, {{.Name}}Item := range {{.Name}} {
   452  				{{.Name}}Rule = append({{.Name}}Rule, {{.Name}}Item)
   453  			}{{end}}{{end}}
   454  
   455  			logs, sub, err := _{{$contract.Type}}.contract.WatchLogs(opts, "{{.Original.Name}}"{{range .Normalized.Inputs}}{{if .Indexed}}, {{.Name}}Rule{{end}}{{end}})
   456  			if err != nil {
   457  				return nil, err
   458  			}
   459  			return event.NewSubscription(func(quit <-chan struct{}) error {
   460  				defer sub.Unsubscribe()
   461  				for {
   462  					select {
   463  					case log := <-logs:
   464  						// New log arrived, parse the event and forward to the user
   465  						event := new({{$contract.Type}}{{.Normalized.Name}})
   466  						if err := _{{$contract.Type}}.contract.UnpackLog(event, "{{.Original.Name}}", log); err != nil {
   467  							return err
   468  						}
   469  						event.Raw = log
   470  
   471  						select {
   472  						case sink <- event:
   473  						case err := <-sub.Err():
   474  							return err
   475  						case <-quit:
   476  							return nil
   477  						}
   478  					case err := <-sub.Err():
   479  						return err
   480  					case <-quit:
   481  						return nil
   482  					}
   483  				}
   484  			}), nil
   485  		}
   486  
   487  		// Parse{{.Normalized.Name}} is a log parse operation binding the contract event 0x{{printf "%x" .Original.ID}}.
   488  		//
   489  		// Solidity: {{formatevent .Original $structs}}
   490  		func (_{{$contract.Type}} *{{$contract.Type}}Filterer) Parse{{.Normalized.Name}}(log types.Log) (*{{$contract.Type}}{{.Normalized.Name}}, error) {
   491  			event := new({{$contract.Type}}{{.Normalized.Name}})
   492  			if err := _{{$contract.Type}}.contract.UnpackLog(event, "{{.Original.Name}}", log); err != nil {
   493  				return nil, err
   494  			}
   495  			return event, nil
   496  		}
   497  
   498   	{{end}}
   499  {{end}}
   500  `
   501  
   502  // tmplSourceJava is the Java source template use to generate the contract binding
   503  // based on.
   504  const tmplSourceJava = `
   505  // This file is an automatically generated Java binding. Do not modify as any
   506  // change will likely be lost upon the next re-generation!
   507  
   508  package {{.Package}};
   509  
   510  import org.ethereum.geth.*;
   511  import java.util.*;
   512  
   513  {{range $contract := .Contracts}}
   514  {{$structs := $contract.Structs}}
   515  {{if not .Library}}public {{end}}class {{.Type}} {
   516  	// ABI is the input ABI used to generate the binding from.
   517  	public final static String ABI = "{{.InputABI}}";
   518  	{{if $contract.FuncSigs}}
   519  		// {{.Type}}FuncSigs maps the 4-byte function signature to its string representation.
   520  		public final static Map<String, String> {{.Type}}FuncSigs;
   521  		static {
   522  			Hashtable<String, String> temp = new Hashtable<String, String>();
   523  			{{range $strsig, $binsig := .FuncSigs}}temp.put("{{$binsig}}", "{{$strsig}}");
   524  			{{end}}
   525  			{{.Type}}FuncSigs = Collections.unmodifiableMap(temp);
   526  		}
   527  	{{end}}
   528  	{{if .InputBin}}
   529  	// BYTECODE is the compiled bytecode used for deploying new contracts.
   530  	public final static String BYTECODE = "0x{{.InputBin}}";
   531  
   532  	// deploy deploys a new Ethereum contract, binding an instance of {{.Type}} to it.
   533  	public static {{.Type}} deploy(TransactOpts auth, EthereumClient client{{range .Constructor.Inputs}}, {{bindtype .Type $structs}} {{.Name}}{{end}}) throws Exception {
   534  		Interfaces args = Geth.newInterfaces({{(len .Constructor.Inputs)}});
   535  		String bytecode = BYTECODE;
   536  		{{if .Libraries}}
   537  
   538  		// "link" contract to dependent libraries by deploying them first.
   539  		{{range $pattern, $name := .Libraries}}
   540  		{{capitalise $name}} {{decapitalise $name}}Inst = {{capitalise $name}}.deploy(auth, client);
   541  		bytecode = bytecode.replace("__${{$pattern}}$__", {{decapitalise $name}}Inst.Address.getHex().substring(2));
   542  		{{end}}
   543  		{{end}}
   544  		{{range $index, $element := .Constructor.Inputs}}Interface arg{{$index}} = Geth.newInterface();arg{{$index}}.set{{namedtype (bindtype .Type $structs) .Type}}({{.Name}});args.set({{$index}},arg{{$index}});
   545  		{{end}}
   546  		return new {{.Type}}(Geth.deployContract(auth, ABI, Geth.decodeFromHex(bytecode), client, args));
   547  	}
   548  
   549  	// Internal constructor used by contract deployment.
   550  	private {{.Type}}(BoundContract deployment) {
   551  		this.Address  = deployment.getAddress();
   552  		this.Deployer = deployment.getDeployer();
   553  		this.Contract = deployment;
   554  	}
   555  	{{end}}
   556  
   557  	// Ethereum address where this contract is located at.
   558  	public final Address Address;
   559  
   560  	// Ethereum transaction in which this contract was deployed (if known!).
   561  	public final Transaction Deployer;
   562  
   563  	// Contract instance bound to a blockchain address.
   564  	private final BoundContract Contract;
   565  
   566  	// Creates a new instance of {{.Type}}, bound to a specific deployed contract.
   567  	public {{.Type}}(Address address, EthereumClient client) throws Exception {
   568  		this(Geth.bindContract(address, ABI, client));
   569  	}
   570  
   571  	{{range .Calls}}
   572  	{{if gt (len .Normalized.Outputs) 1}}
   573  	// {{capitalise .Normalized.Name}}Results is the output of a call to {{.Normalized.Name}}.
   574  	public class {{capitalise .Normalized.Name}}Results {
   575  		{{range $index, $item := .Normalized.Outputs}}public {{bindtype .Type $structs}} {{if ne .Name ""}}{{.Name}}{{else}}Return{{$index}}{{end}};
   576  		{{end}}
   577  	}
   578  	{{end}}
   579  
   580  	// {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.ID}}.
   581  	//
   582  	// Solidity: {{.Original.String}}
   583  	public {{if gt (len .Normalized.Outputs) 1}}{{capitalise .Normalized.Name}}Results{{else}}{{range .Normalized.Outputs}}{{bindtype .Type $structs}}{{end}}{{end}} {{.Normalized.Name}}(CallOpts opts{{range .Normalized.Inputs}}, {{bindtype .Type $structs}} {{.Name}}{{end}}) throws Exception {
   584  		Interfaces args = Geth.newInterfaces({{(len .Normalized.Inputs)}});
   585  		{{range $index, $item := .Normalized.Inputs}}Interface arg{{$index}} = Geth.newInterface();arg{{$index}}.set{{namedtype (bindtype .Type $structs) .Type}}({{.Name}});args.set({{$index}},arg{{$index}});
   586  		{{end}}
   587  
   588  		Interfaces results = Geth.newInterfaces({{(len .Normalized.Outputs)}});
   589  		{{range $index, $item := .Normalized.Outputs}}Interface result{{$index}} = Geth.newInterface(); result{{$index}}.setDefault{{namedtype (bindtype .Type $structs) .Type}}(); results.set({{$index}}, result{{$index}});
   590  		{{end}}
   591  
   592  		if (opts == null) {
   593  			opts = Geth.newCallOpts();
   594  		}
   595  		this.Contract.call(opts, results, "{{.Original.Name}}", args);
   596  		{{if gt (len .Normalized.Outputs) 1}}
   597  			{{capitalise .Normalized.Name}}Results result = new {{capitalise .Normalized.Name}}Results();
   598  			{{range $index, $item := .Normalized.Outputs}}result.{{if ne .Name ""}}{{.Name}}{{else}}Return{{$index}}{{end}} = results.get({{$index}}).get{{namedtype (bindtype .Type $structs) .Type}}();
   599  			{{end}}
   600  			return result;
   601  		{{else}}{{range .Normalized.Outputs}}return results.get(0).get{{namedtype (bindtype .Type $structs) .Type}}();{{end}}
   602  		{{end}}
   603  	}
   604  	{{end}}
   605  
   606  	{{range .Transacts}}
   607  	// {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.ID}}.
   608  	//
   609  	// Solidity: {{.Original.String}}
   610  	public Transaction {{.Normalized.Name}}(TransactOpts opts{{range .Normalized.Inputs}}, {{bindtype .Type $structs}} {{.Name}}{{end}}) throws Exception {
   611  		Interfaces args = Geth.newInterfaces({{(len .Normalized.Inputs)}});
   612  		{{range $index, $item := .Normalized.Inputs}}Interface arg{{$index}} = Geth.newInterface();arg{{$index}}.set{{namedtype (bindtype .Type $structs) .Type}}({{.Name}});args.set({{$index}},arg{{$index}});
   613  		{{end}}
   614  		return this.Contract.transact(opts, "{{.Original.Name}}"	, args);
   615  	}
   616  	{{end}}
   617  }
   618  {{end}}
   619  `