gitee.com/liu-zhao234568/cntest@v1.0.0/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 "gitee.com/liu-zhao234568/cntest/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  	Structs   map[string]*tmplStruct   // Contract struct type definitions
    27  }
    28  
    29  // tmplContract contains the data needed to generate an individual contract binding.
    30  type tmplContract struct {
    31  	Type        string                 // Type name of the main contract binding
    32  	InputABI    string                 // JSON ABI used as the input to generate the binding from
    33  	InputBin    string                 // Optional EVM bytecode used to generate deploy code from
    34  	FuncSigs    map[string]string      // Optional map: string signature -> 4-byte signature
    35  	Constructor abi.Method             // Contract constructor for deploy parametrization
    36  	Calls       map[string]*tmplMethod // Contract calls that only read state data
    37  	Transacts   map[string]*tmplMethod // Contract calls that write state data
    38  	Fallback    *tmplMethod            // Additional special fallback function
    39  	Receive     *tmplMethod            // Additional special receive function
    40  	Events      map[string]*tmplEvent  // Contract events accessors
    41  	Libraries   map[string]string      // Same as tmplData, but filtered to only keep what the contract needs
    42  	Library     bool                   // Indicator whether the contract is a library
    43  }
    44  
    45  // tmplMethod is a wrapper around an abi.Method that contains a few preprocessed
    46  // and cached data fields.
    47  type tmplMethod struct {
    48  	Original   abi.Method // Original method as parsed by the abi package
    49  	Normalized abi.Method // Normalized version of the parsed method (capitalized names, non-anonymous args/returns)
    50  	Structured bool       // Whether the returns should be accumulated into a struct
    51  }
    52  
    53  // tmplEvent is a wrapper around an abi.Event that contains a few preprocessed
    54  // and cached data fields.
    55  type tmplEvent struct {
    56  	Original   abi.Event // Original event as parsed by the abi package
    57  	Normalized abi.Event // Normalized version of the parsed fields
    58  }
    59  
    60  // tmplField is a wrapper around a struct field with binding language
    61  // struct type definition and relative filed name.
    62  type tmplField struct {
    63  	Type    string   // Field type representation depends on target binding language
    64  	Name    string   // Field name converted from the raw user-defined field name
    65  	SolKind abi.Type // Raw abi type information
    66  }
    67  
    68  // tmplStruct is a wrapper around an abi.tuple and contains an auto-generated
    69  // struct name.
    70  type tmplStruct struct {
    71  	Name   string       // Auto-generated struct name(before solidity v0.5.11) or raw name.
    72  	Fields []*tmplField // Struct fields definition depends on the binding language.
    73  }
    74  
    75  // tmplSource is language to template mapping containing all the supported
    76  // programming languages the package can generate to.
    77  var tmplSource = map[Lang]string{
    78  	LangGo:   tmplSourceGo,
    79  	LangJava: tmplSourceJava,
    80  }
    81  
    82  // tmplSourceGo is the Go source template that the generated Go contract binding
    83  // is based on.
    84  const tmplSourceGo = `
    85  // Code generated - DO NOT EDIT.
    86  // This file is a generated binding and any manual changes will be lost.
    87  
    88  package {{.Package}}
    89  
    90  import (
    91  	"math/big"
    92  	"strings"
    93  
    94  	ethereum "gitee.com/liu-zhao234568/cntest"
    95  	"gitee.com/liu-zhao234568/cntest/accounts/abi"
    96  	"gitee.com/liu-zhao234568/cntest/accounts/abi/bind"
    97  	"gitee.com/liu-zhao234568/cntest/common"
    98  	"gitee.com/liu-zhao234568/cntest/core/types"
    99  	"gitee.com/liu-zhao234568/cntest/event"
   100  )
   101  
   102  // Reference imports to suppress errors if they are not otherwise used.
   103  var (
   104  	_ = big.NewInt
   105  	_ = strings.NewReader
   106  	_ = ethereum.NotFound
   107  	_ = bind.Bind
   108  	_ = common.Big1
   109  	_ = types.BloomLookup
   110  	_ = event.NewSubscription
   111  )
   112  
   113  {{$structs := .Structs}}
   114  {{range $structs}}
   115  	// {{.Name}} is an auto generated low-level Go binding around an user-defined struct.
   116  	type {{.Name}} struct {
   117  	{{range $field := .Fields}}
   118  	{{$field.Name}} {{$field.Type}}{{end}}
   119  	}
   120  {{end}}
   121  
   122  {{range $contract := .Contracts}}
   123  	// {{.Type}}ABI is the input ABI used to generate the binding from.
   124  	const {{.Type}}ABI = "{{.InputABI}}"
   125  
   126  	{{if $contract.FuncSigs}}
   127  		// {{.Type}}FuncSigs maps the 4-byte function signature to its string representation.
   128  		var {{.Type}}FuncSigs = map[string]string{
   129  			{{range $strsig, $binsig := .FuncSigs}}"{{$binsig}}": "{{$strsig}}",
   130  			{{end}}
   131  		}
   132  	{{end}}
   133  
   134  	{{if .InputBin}}
   135  		// {{.Type}}Bin is the compiled bytecode used for deploying new contracts.
   136  		var {{.Type}}Bin = "0x{{.InputBin}}"
   137  
   138  		// Deploy{{.Type}} deploys a new Ethereum contract, binding an instance of {{.Type}} to it.
   139  		func Deploy{{.Type}}(auth *bind.TransactOpts, backend bind.ContractBackend {{range .Constructor.Inputs}}, {{.Name}} {{bindtype .Type $structs}}{{end}}) (common.Address, *types.Transaction, *{{.Type}}, error) {
   140  		  parsed, err := abi.JSON(strings.NewReader({{.Type}}ABI))
   141  		  if err != nil {
   142  		    return common.Address{}, nil, nil, err
   143  		  }
   144  		  {{range $pattern, $name := .Libraries}}
   145  			{{decapitalise $name}}Addr, _, _, _ := Deploy{{capitalise $name}}(auth, backend)
   146  			{{$contract.Type}}Bin = strings.Replace({{$contract.Type}}Bin, "__${{$pattern}}$__", {{decapitalise $name}}Addr.String()[2:], -1)
   147  		  {{end}}
   148  		  address, tx, contract, err := bind.DeployContract(auth, parsed, common.FromHex({{.Type}}Bin), backend {{range .Constructor.Inputs}}, {{.Name}}{{end}})
   149  		  if err != nil {
   150  		    return common.Address{}, nil, nil, err
   151  		  }
   152  		  return address, tx, &{{.Type}}{ {{.Type}}Caller: {{.Type}}Caller{contract: contract}, {{.Type}}Transactor: {{.Type}}Transactor{contract: contract}, {{.Type}}Filterer: {{.Type}}Filterer{contract: contract} }, nil
   153  		}
   154  	{{end}}
   155  
   156  	// {{.Type}} is an auto generated Go binding around an Ethereum contract.
   157  	type {{.Type}} struct {
   158  	  {{.Type}}Caller     // Read-only binding to the contract
   159  	  {{.Type}}Transactor // Write-only binding to the contract
   160  	  {{.Type}}Filterer   // Log filterer for contract events
   161  	}
   162  
   163  	// {{.Type}}Caller is an auto generated read-only Go binding around an Ethereum contract.
   164  	type {{.Type}}Caller struct {
   165  	  contract *bind.BoundContract // Generic contract wrapper for the low level calls
   166  	}
   167  
   168  	// {{.Type}}Transactor is an auto generated write-only Go binding around an Ethereum contract.
   169  	type {{.Type}}Transactor struct {
   170  	  contract *bind.BoundContract // Generic contract wrapper for the low level calls
   171  	}
   172  
   173  	// {{.Type}}Filterer is an auto generated log filtering Go binding around an Ethereum contract events.
   174  	type {{.Type}}Filterer struct {
   175  	  contract *bind.BoundContract // Generic contract wrapper for the low level calls
   176  	}
   177  
   178  	// {{.Type}}Session is an auto generated Go binding around an Ethereum contract,
   179  	// with pre-set call and transact options.
   180  	type {{.Type}}Session struct {
   181  	  Contract     *{{.Type}}        // Generic contract binding to set the session for
   182  	  CallOpts     bind.CallOpts     // Call options to use throughout this session
   183  	  TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session
   184  	}
   185  
   186  	// {{.Type}}CallerSession is an auto generated read-only Go binding around an Ethereum contract,
   187  	// with pre-set call options.
   188  	type {{.Type}}CallerSession struct {
   189  	  Contract *{{.Type}}Caller // Generic contract caller binding to set the session for
   190  	  CallOpts bind.CallOpts    // Call options to use throughout this session
   191  	}
   192  
   193  	// {{.Type}}TransactorSession is an auto generated write-only Go binding around an Ethereum contract,
   194  	// with pre-set transact options.
   195  	type {{.Type}}TransactorSession struct {
   196  	  Contract     *{{.Type}}Transactor // Generic contract transactor binding to set the session for
   197  	  TransactOpts bind.TransactOpts    // Transaction auth options to use throughout this session
   198  	}
   199  
   200  	// {{.Type}}Raw is an auto generated low-level Go binding around an Ethereum contract.
   201  	type {{.Type}}Raw struct {
   202  	  Contract *{{.Type}} // Generic contract binding to access the raw methods on
   203  	}
   204  
   205  	// {{.Type}}CallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract.
   206  	type {{.Type}}CallerRaw struct {
   207  		Contract *{{.Type}}Caller // Generic read-only contract binding to access the raw methods on
   208  	}
   209  
   210  	// {{.Type}}TransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract.
   211  	type {{.Type}}TransactorRaw struct {
   212  		Contract *{{.Type}}Transactor // Generic write-only contract binding to access the raw methods on
   213  	}
   214  
   215  	// New{{.Type}} creates a new instance of {{.Type}}, bound to a specific deployed contract.
   216  	func New{{.Type}}(address common.Address, backend bind.ContractBackend) (*{{.Type}}, error) {
   217  	  contract, err := bind{{.Type}}(address, backend, backend, backend)
   218  	  if err != nil {
   219  	    return nil, err
   220  	  }
   221  	  return &{{.Type}}{ {{.Type}}Caller: {{.Type}}Caller{contract: contract}, {{.Type}}Transactor: {{.Type}}Transactor{contract: contract}, {{.Type}}Filterer: {{.Type}}Filterer{contract: contract} }, nil
   222  	}
   223  
   224  	// New{{.Type}}Caller creates a new read-only instance of {{.Type}}, bound to a specific deployed contract.
   225  	func New{{.Type}}Caller(address common.Address, caller bind.ContractCaller) (*{{.Type}}Caller, error) {
   226  	  contract, err := bind{{.Type}}(address, caller, nil, nil)
   227  	  if err != nil {
   228  	    return nil, err
   229  	  }
   230  	  return &{{.Type}}Caller{contract: contract}, nil
   231  	}
   232  
   233  	// New{{.Type}}Transactor creates a new write-only instance of {{.Type}}, bound to a specific deployed contract.
   234  	func New{{.Type}}Transactor(address common.Address, transactor bind.ContractTransactor) (*{{.Type}}Transactor, error) {
   235  	  contract, err := bind{{.Type}}(address, nil, transactor, nil)
   236  	  if err != nil {
   237  	    return nil, err
   238  	  }
   239  	  return &{{.Type}}Transactor{contract: contract}, nil
   240  	}
   241  
   242  	// New{{.Type}}Filterer creates a new log filterer instance of {{.Type}}, bound to a specific deployed contract.
   243   	func New{{.Type}}Filterer(address common.Address, filterer bind.ContractFilterer) (*{{.Type}}Filterer, error) {
   244   	  contract, err := bind{{.Type}}(address, nil, nil, filterer)
   245   	  if err != nil {
   246   	    return nil, err
   247   	  }
   248   	  return &{{.Type}}Filterer{contract: contract}, nil
   249   	}
   250  
   251  	// bind{{.Type}} binds a generic wrapper to an already deployed contract.
   252  	func bind{{.Type}}(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor, filterer bind.ContractFilterer) (*bind.BoundContract, error) {
   253  	  parsed, err := abi.JSON(strings.NewReader({{.Type}}ABI))
   254  	  if err != nil {
   255  	    return nil, err
   256  	  }
   257  	  return bind.NewBoundContract(address, parsed, caller, transactor, filterer), nil
   258  	}
   259  
   260  	// Call invokes the (constant) contract method with params as input values and
   261  	// sets the output to result. The result type might be a single field for simple
   262  	// returns, a slice of interfaces for anonymous returns and a struct for named
   263  	// returns.
   264  	func (_{{$contract.Type}} *{{$contract.Type}}Raw) Call(opts *bind.CallOpts, result *[]interface{}, method string, params ...interface{}) error {
   265  		return _{{$contract.Type}}.Contract.{{$contract.Type}}Caller.contract.Call(opts, result, method, params...)
   266  	}
   267  
   268  	// Transfer initiates a plain transaction to move funds to the contract, calling
   269  	// its default method if one is available.
   270  	func (_{{$contract.Type}} *{{$contract.Type}}Raw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
   271  		return _{{$contract.Type}}.Contract.{{$contract.Type}}Transactor.contract.Transfer(opts)
   272  	}
   273  
   274  	// Transact invokes the (paid) contract method with params as input values.
   275  	func (_{{$contract.Type}} *{{$contract.Type}}Raw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
   276  		return _{{$contract.Type}}.Contract.{{$contract.Type}}Transactor.contract.Transact(opts, method, params...)
   277  	}
   278  
   279  	// Call invokes the (constant) contract method with params as input values and
   280  	// sets the output to result. The result type might be a single field for simple
   281  	// returns, a slice of interfaces for anonymous returns and a struct for named
   282  	// returns.
   283  	func (_{{$contract.Type}} *{{$contract.Type}}CallerRaw) Call(opts *bind.CallOpts, result *[]interface{}, method string, params ...interface{}) error {
   284  		return _{{$contract.Type}}.Contract.contract.Call(opts, result, method, params...)
   285  	}
   286  
   287  	// Transfer initiates a plain transaction to move funds to the contract, calling
   288  	// its default method if one is available.
   289  	func (_{{$contract.Type}} *{{$contract.Type}}TransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) {
   290  		return _{{$contract.Type}}.Contract.contract.Transfer(opts)
   291  	}
   292  
   293  	// Transact invokes the (paid) contract method with params as input values.
   294  	func (_{{$contract.Type}} *{{$contract.Type}}TransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) {
   295  		return _{{$contract.Type}}.Contract.contract.Transact(opts, method, params...)
   296  	}
   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: {{.Original.String}}
   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 $structs}},{{end}}{{end}} error) {
   303  			var out []interface{}
   304  			err := _{{$contract.Type}}.contract.Call(opts, &out, "{{.Original.Name}}" {{range .Normalized.Inputs}}, {{.Name}}{{end}})
   305  			{{if .Structured}}
   306  			outstruct := new(struct{ {{range .Normalized.Outputs}} {{.Name}} {{bindtype .Type $structs}}; {{end}} })
   307  			if err != nil {
   308  				return *outstruct, err
   309  			}
   310  			{{range $i, $t := .Normalized.Outputs}} 
   311  			outstruct.{{.Name}} = *abi.ConvertType(out[{{$i}}], new({{bindtype .Type $structs}})).(*{{bindtype .Type $structs}}){{end}}
   312  
   313  			return *outstruct, err
   314  			{{else}}
   315  			if err != nil {
   316  				return {{range $i, $_ := .Normalized.Outputs}}*new({{bindtype .Type $structs}}), {{end}} err
   317  			}
   318  			{{range $i, $t := .Normalized.Outputs}}
   319  			out{{$i}} := *abi.ConvertType(out[{{$i}}], new({{bindtype .Type $structs}})).(*{{bindtype .Type $structs}}){{end}}
   320  			
   321  			return {{range $i, $t := .Normalized.Outputs}}out{{$i}}, {{end}} err
   322  			{{end}}
   323  		}
   324  
   325  		// {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.ID}}.
   326  		//
   327  		// Solidity: {{.Original.String}}
   328  		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 $structs}},{{end}} {{end}} error) {
   329  		  return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.CallOpts {{range .Normalized.Inputs}}, {{.Name}}{{end}})
   330  		}
   331  
   332  		// {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.ID}}.
   333  		//
   334  		// Solidity: {{.Original.String}}
   335  		func (_{{$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 $structs}},{{end}} {{end}} error) {
   336  		  return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.CallOpts {{range .Normalized.Inputs}}, {{.Name}}{{end}})
   337  		}
   338  	{{end}}
   339  
   340  	{{range .Transacts}}
   341  		// {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.ID}}.
   342  		//
   343  		// Solidity: {{.Original.String}}
   344  		func (_{{$contract.Type}} *{{$contract.Type}}Transactor) {{.Normalized.Name}}(opts *bind.TransactOpts {{range .Normalized.Inputs}}, {{.Name}} {{bindtype .Type $structs}} {{end}}) (*types.Transaction, error) {
   345  			return _{{$contract.Type}}.contract.Transact(opts, "{{.Original.Name}}" {{range .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: {{.Original.String}}
   351  		func (_{{$contract.Type}} *{{$contract.Type}}Session) {{.Normalized.Name}}({{range $i, $_ := .Normalized.Inputs}}{{if ne $i 0}},{{end}} {{.Name}} {{bindtype .Type $structs}} {{end}}) (*types.Transaction, error) {
   352  		  return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.TransactOpts {{range $i, $_ := .Normalized.Inputs}}, {{.Name}}{{end}})
   353  		}
   354  
   355  		// {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.ID}}.
   356  		//
   357  		// Solidity: {{.Original.String}}
   358  		func (_{{$contract.Type}} *{{$contract.Type}}TransactorSession) {{.Normalized.Name}}({{range $i, $_ := .Normalized.Inputs}}{{if ne $i 0}},{{end}} {{.Name}} {{bindtype .Type $structs}} {{end}}) (*types.Transaction, error) {
   359  		  return _{{$contract.Type}}.Contract.{{.Normalized.Name}}(&_{{$contract.Type}}.TransactOpts {{range $i, $_ := .Normalized.Inputs}}, {{.Name}}{{end}})
   360  		}
   361  	{{end}}
   362  
   363  	{{if .Fallback}} 
   364  		// Fallback is a paid mutator transaction binding the contract fallback function.
   365  		//
   366  		// Solidity: {{.Fallback.Original.String}}
   367  		func (_{{$contract.Type}} *{{$contract.Type}}Transactor) Fallback(opts *bind.TransactOpts, calldata []byte) (*types.Transaction, error) {
   368  			return _{{$contract.Type}}.contract.RawTransact(opts, calldata)
   369  		}
   370  
   371  		// Fallback is a paid mutator transaction binding the contract fallback function.
   372  		//
   373  		// Solidity: {{.Fallback.Original.String}}
   374  		func (_{{$contract.Type}} *{{$contract.Type}}Session) Fallback(calldata []byte) (*types.Transaction, error) {
   375  		  return _{{$contract.Type}}.Contract.Fallback(&_{{$contract.Type}}.TransactOpts, calldata)
   376  		}
   377  	
   378  		// Fallback is a paid mutator transaction binding the contract fallback function.
   379  		// 
   380  		// Solidity: {{.Fallback.Original.String}}
   381  		func (_{{$contract.Type}} *{{$contract.Type}}TransactorSession) Fallback(calldata []byte) (*types.Transaction, error) {
   382  		  return _{{$contract.Type}}.Contract.Fallback(&_{{$contract.Type}}.TransactOpts, calldata)
   383  		}
   384  	{{end}}
   385  
   386  	{{if .Receive}} 
   387  		// Receive is a paid mutator transaction binding the contract receive function.
   388  		//
   389  		// Solidity: {{.Receive.Original.String}}
   390  		func (_{{$contract.Type}} *{{$contract.Type}}Transactor) Receive(opts *bind.TransactOpts) (*types.Transaction, error) {
   391  			return _{{$contract.Type}}.contract.RawTransact(opts, nil) // calldata is disallowed for receive function
   392  		}
   393  
   394  		// Receive is a paid mutator transaction binding the contract receive function.
   395  		//
   396  		// Solidity: {{.Receive.Original.String}}
   397  		func (_{{$contract.Type}} *{{$contract.Type}}Session) Receive() (*types.Transaction, error) {
   398  		  return _{{$contract.Type}}.Contract.Receive(&_{{$contract.Type}}.TransactOpts)
   399  		}
   400  	
   401  		// Receive is a paid mutator transaction binding the contract receive function.
   402  		// 
   403  		// Solidity: {{.Receive.Original.String}}
   404  		func (_{{$contract.Type}} *{{$contract.Type}}TransactorSession) Receive() (*types.Transaction, error) {
   405  		  return _{{$contract.Type}}.Contract.Receive(&_{{$contract.Type}}.TransactOpts)
   406  		}
   407  	{{end}}
   408  
   409  	{{range .Events}}
   410  		// {{$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 {{$contract.Type}} contract.
   411  		type {{$contract.Type}}{{.Normalized.Name}}Iterator struct {
   412  			Event *{{$contract.Type}}{{.Normalized.Name}} // Event containing the contract specifics and raw log
   413  
   414  			contract *bind.BoundContract // Generic contract to use for unpacking event data
   415  			event    string              // Event name to use for unpacking event data
   416  
   417  			logs chan types.Log        // Log channel receiving the found contract events
   418  			sub  ethereum.Subscription // Subscription for errors, completion and termination
   419  			done bool                  // Whether the subscription completed delivering logs
   420  			fail error                 // Occurred error to stop iteration
   421  		}
   422  		// Next advances the iterator to the subsequent event, returning whether there
   423  		// are any more events found. In case of a retrieval or parsing error, false is
   424  		// returned and Error() can be queried for the exact failure.
   425  		func (it *{{$contract.Type}}{{.Normalized.Name}}Iterator) Next() bool {
   426  			// If the iterator failed, stop iterating
   427  			if (it.fail != nil) {
   428  				return false
   429  			}
   430  			// If the iterator completed, deliver directly whatever's available
   431  			if (it.done) {
   432  				select {
   433  				case log := <-it.logs:
   434  					it.Event = new({{$contract.Type}}{{.Normalized.Name}})
   435  					if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
   436  						it.fail = err
   437  						return false
   438  					}
   439  					it.Event.Raw = log
   440  					return true
   441  
   442  				default:
   443  					return false
   444  				}
   445  			}
   446  			// Iterator still in progress, wait for either a data or an error event
   447  			select {
   448  			case log := <-it.logs:
   449  				it.Event = new({{$contract.Type}}{{.Normalized.Name}})
   450  				if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil {
   451  					it.fail = err
   452  					return false
   453  				}
   454  				it.Event.Raw = log
   455  				return true
   456  
   457  			case err := <-it.sub.Err():
   458  				it.done = true
   459  				it.fail = err
   460  				return it.Next()
   461  			}
   462  		}
   463  		// Error returns any retrieval or parsing error occurred during filtering.
   464  		func (it *{{$contract.Type}}{{.Normalized.Name}}Iterator) Error() error {
   465  			return it.fail
   466  		}
   467  		// Close terminates the iteration process, releasing any pending underlying
   468  		// resources.
   469  		func (it *{{$contract.Type}}{{.Normalized.Name}}Iterator) Close() error {
   470  			it.sub.Unsubscribe()
   471  			return nil
   472  		}
   473  
   474  		// {{$contract.Type}}{{.Normalized.Name}} represents a {{.Normalized.Name}} event raised by the {{$contract.Type}} contract.
   475  		type {{$contract.Type}}{{.Normalized.Name}} struct { {{range .Normalized.Inputs}}
   476  			{{capitalise .Name}} {{if .Indexed}}{{bindtopictype .Type $structs}}{{else}}{{bindtype .Type $structs}}{{end}}; {{end}}
   477  			Raw types.Log // Blockchain specific contextual infos
   478  		}
   479  
   480  		// Filter{{.Normalized.Name}} is a free log retrieval operation binding the contract event 0x{{printf "%x" .Original.ID}}.
   481  		//
   482  		// Solidity: {{.Original.String}}
   483   		func (_{{$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) {
   484  			{{range .Normalized.Inputs}}
   485  			{{if .Indexed}}var {{.Name}}Rule []interface{}
   486  			for _, {{.Name}}Item := range {{.Name}} {
   487  				{{.Name}}Rule = append({{.Name}}Rule, {{.Name}}Item)
   488  			}{{end}}{{end}}
   489  
   490  			logs, sub, err := _{{$contract.Type}}.contract.FilterLogs(opts, "{{.Original.Name}}"{{range .Normalized.Inputs}}{{if .Indexed}}, {{.Name}}Rule{{end}}{{end}})
   491  			if err != nil {
   492  				return nil, err
   493  			}
   494  			return &{{$contract.Type}}{{.Normalized.Name}}Iterator{contract: _{{$contract.Type}}.contract, event: "{{.Original.Name}}", logs: logs, sub: sub}, nil
   495   		}
   496  
   497  		// Watch{{.Normalized.Name}} is a free log subscription operation binding the contract event 0x{{printf "%x" .Original.ID}}.
   498  		//
   499  		// Solidity: {{.Original.String}}
   500  		func (_{{$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 $structs}}{{end}}{{end}}) (event.Subscription, error) {
   501  			{{range .Normalized.Inputs}}
   502  			{{if .Indexed}}var {{.Name}}Rule []interface{}
   503  			for _, {{.Name}}Item := range {{.Name}} {
   504  				{{.Name}}Rule = append({{.Name}}Rule, {{.Name}}Item)
   505  			}{{end}}{{end}}
   506  
   507  			logs, sub, err := _{{$contract.Type}}.contract.WatchLogs(opts, "{{.Original.Name}}"{{range .Normalized.Inputs}}{{if .Indexed}}, {{.Name}}Rule{{end}}{{end}})
   508  			if err != nil {
   509  				return nil, err
   510  			}
   511  			return event.NewSubscription(func(quit <-chan struct{}) error {
   512  				defer sub.Unsubscribe()
   513  				for {
   514  					select {
   515  					case log := <-logs:
   516  						// New log arrived, parse the event and forward to the user
   517  						event := new({{$contract.Type}}{{.Normalized.Name}})
   518  						if err := _{{$contract.Type}}.contract.UnpackLog(event, "{{.Original.Name}}", log); err != nil {
   519  							return err
   520  						}
   521  						event.Raw = log
   522  
   523  						select {
   524  						case sink <- event:
   525  						case err := <-sub.Err():
   526  							return err
   527  						case <-quit:
   528  							return nil
   529  						}
   530  					case err := <-sub.Err():
   531  						return err
   532  					case <-quit:
   533  						return nil
   534  					}
   535  				}
   536  			}), nil
   537  		}
   538  
   539  		// Parse{{.Normalized.Name}} is a log parse operation binding the contract event 0x{{printf "%x" .Original.ID}}.
   540  		//
   541  		// Solidity: {{.Original.String}}
   542  		func (_{{$contract.Type}} *{{$contract.Type}}Filterer) Parse{{.Normalized.Name}}(log types.Log) (*{{$contract.Type}}{{.Normalized.Name}}, error) {
   543  			event := new({{$contract.Type}}{{.Normalized.Name}})
   544  			if err := _{{$contract.Type}}.contract.UnpackLog(event, "{{.Original.Name}}", log); err != nil {
   545  				return nil, err
   546  			}
   547  			event.Raw = log
   548  			return event, nil
   549  		}
   550  
   551   	{{end}}
   552  {{end}}
   553  `
   554  
   555  // tmplSourceJava is the Java source template that the generated Java contract binding
   556  // is based on.
   557  const tmplSourceJava = `
   558  // This file is an automatically generated Java binding. Do not modify as any
   559  // change will likely be lost upon the next re-generation!
   560  
   561  package {{.Package}};
   562  
   563  import org.ethereum.geth.*;
   564  import java.util.*;
   565  
   566  {{$structs := .Structs}}
   567  {{range $contract := .Contracts}}
   568  {{if not .Library}}public {{end}}class {{.Type}} {
   569  	// ABI is the input ABI used to generate the binding from.
   570  	public final static String ABI = "{{.InputABI}}";
   571  	{{if $contract.FuncSigs}}
   572  		// {{.Type}}FuncSigs maps the 4-byte function signature to its string representation.
   573  		public final static Map<String, String> {{.Type}}FuncSigs;
   574  		static {
   575  			Hashtable<String, String> temp = new Hashtable<String, String>();
   576  			{{range $strsig, $binsig := .FuncSigs}}temp.put("{{$binsig}}", "{{$strsig}}");
   577  			{{end}}
   578  			{{.Type}}FuncSigs = Collections.unmodifiableMap(temp);
   579  		}
   580  	{{end}}
   581  	{{if .InputBin}}
   582  	// BYTECODE is the compiled bytecode used for deploying new contracts.
   583  	public final static String BYTECODE = "0x{{.InputBin}}";
   584  
   585  	// deploy deploys a new Ethereum contract, binding an instance of {{.Type}} to it.
   586  	public static {{.Type}} deploy(TransactOpts auth, EthereumClient client{{range .Constructor.Inputs}}, {{bindtype .Type $structs}} {{.Name}}{{end}}) throws Exception {
   587  		Interfaces args = Geth.newInterfaces({{(len .Constructor.Inputs)}});
   588  		String bytecode = BYTECODE;
   589  		{{if .Libraries}}
   590  
   591  		// "link" contract to dependent libraries by deploying them first.
   592  		{{range $pattern, $name := .Libraries}}
   593  		{{capitalise $name}} {{decapitalise $name}}Inst = {{capitalise $name}}.deploy(auth, client);
   594  		bytecode = bytecode.replace("__${{$pattern}}$__", {{decapitalise $name}}Inst.Address.getHex().substring(2));
   595  		{{end}}
   596  		{{end}}
   597  		{{range $index, $element := .Constructor.Inputs}}Interface arg{{$index}} = Geth.newInterface();arg{{$index}}.set{{namedtype (bindtype .Type $structs) .Type}}({{.Name}});args.set({{$index}},arg{{$index}});
   598  		{{end}}
   599  		return new {{.Type}}(Geth.deployContract(auth, ABI, Geth.decodeFromHex(bytecode), client, args));
   600  	}
   601  
   602  	// Internal constructor used by contract deployment.
   603  	private {{.Type}}(BoundContract deployment) {
   604  		this.Address  = deployment.getAddress();
   605  		this.Deployer = deployment.getDeployer();
   606  		this.Contract = deployment;
   607  	}
   608  	{{end}}
   609  
   610  	// Ethereum address where this contract is located at.
   611  	public final Address Address;
   612  
   613  	// Ethereum transaction in which this contract was deployed (if known!).
   614  	public final Transaction Deployer;
   615  
   616  	// Contract instance bound to a blockchain address.
   617  	private final BoundContract Contract;
   618  
   619  	// Creates a new instance of {{.Type}}, bound to a specific deployed contract.
   620  	public {{.Type}}(Address address, EthereumClient client) throws Exception {
   621  		this(Geth.bindContract(address, ABI, client));
   622  	}
   623  
   624  	{{range .Calls}}
   625  	{{if gt (len .Normalized.Outputs) 1}}
   626  	// {{capitalise .Normalized.Name}}Results is the output of a call to {{.Normalized.Name}}.
   627  	public class {{capitalise .Normalized.Name}}Results {
   628  		{{range $index, $item := .Normalized.Outputs}}public {{bindtype .Type $structs}} {{if ne .Name ""}}{{.Name}}{{else}}Return{{$index}}{{end}};
   629  		{{end}}
   630  	}
   631  	{{end}}
   632  
   633  	// {{.Normalized.Name}} is a free data retrieval call binding the contract method 0x{{printf "%x" .Original.ID}}.
   634  	//
   635  	// Solidity: {{.Original.String}}
   636  	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 {
   637  		Interfaces args = Geth.newInterfaces({{(len .Normalized.Inputs)}});
   638  		{{range $index, $item := .Normalized.Inputs}}Interface arg{{$index}} = Geth.newInterface();arg{{$index}}.set{{namedtype (bindtype .Type $structs) .Type}}({{.Name}});args.set({{$index}},arg{{$index}});
   639  		{{end}}
   640  
   641  		Interfaces results = Geth.newInterfaces({{(len .Normalized.Outputs)}});
   642  		{{range $index, $item := .Normalized.Outputs}}Interface result{{$index}} = Geth.newInterface(); result{{$index}}.setDefault{{namedtype (bindtype .Type $structs) .Type}}(); results.set({{$index}}, result{{$index}});
   643  		{{end}}
   644  
   645  		if (opts == null) {
   646  			opts = Geth.newCallOpts();
   647  		}
   648  		this.Contract.call(opts, results, "{{.Original.Name}}", args);
   649  		{{if gt (len .Normalized.Outputs) 1}}
   650  			{{capitalise .Normalized.Name}}Results result = new {{capitalise .Normalized.Name}}Results();
   651  			{{range $index, $item := .Normalized.Outputs}}result.{{if ne .Name ""}}{{.Name}}{{else}}Return{{$index}}{{end}} = results.get({{$index}}).get{{namedtype (bindtype .Type $structs) .Type}}();
   652  			{{end}}
   653  			return result;
   654  		{{else}}{{range .Normalized.Outputs}}return results.get(0).get{{namedtype (bindtype .Type $structs) .Type}}();{{end}}
   655  		{{end}}
   656  	}
   657  	{{end}}
   658  
   659  	{{range .Transacts}}
   660  	// {{.Normalized.Name}} is a paid mutator transaction binding the contract method 0x{{printf "%x" .Original.ID}}.
   661  	//
   662  	// Solidity: {{.Original.String}}
   663  	public Transaction {{.Normalized.Name}}(TransactOpts opts{{range .Normalized.Inputs}}, {{bindtype .Type $structs}} {{.Name}}{{end}}) throws Exception {
   664  		Interfaces args = Geth.newInterfaces({{(len .Normalized.Inputs)}});
   665  		{{range $index, $item := .Normalized.Inputs}}Interface arg{{$index}} = Geth.newInterface();arg{{$index}}.set{{namedtype (bindtype .Type $structs) .Type}}({{.Name}});args.set({{$index}},arg{{$index}});
   666  		{{end}}
   667  		return this.Contract.transact(opts, "{{.Original.Name}}"	, args);
   668  	}
   669  	{{end}}
   670  
   671      {{if .Fallback}}
   672  	// Fallback is a paid mutator transaction binding the contract fallback function.
   673  	//
   674  	// Solidity: {{.Fallback.Original.String}}
   675  	public Transaction Fallback(TransactOpts opts, byte[] calldata) throws Exception { 
   676  		return this.Contract.rawTransact(opts, calldata);
   677  	}
   678      {{end}}
   679  
   680      {{if .Receive}}
   681  	// Receive is a paid mutator transaction binding the contract receive function.
   682  	//
   683  	// Solidity: {{.Receive.Original.String}}
   684  	public Transaction Receive(TransactOpts opts) throws Exception { 
   685  		return this.Contract.rawTransact(opts, null);
   686  	}
   687      {{end}}
   688  }
   689  {{end}}
   690  `