github.com/arieschain/arieschain@v0.0.0-20191023063405-37c074544356/accounts/abi/bind/template.go (about)

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