From 0b3dce18a9041001a8169bef4c25596da7501067 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Phan=20Ph=C3=BA=20Th=C3=A0nh?= Date: Thu, 16 May 2024 15:56:47 +0700 Subject: [PATCH] =?UTF-8?q?feat:=20=E2=9C=A8=20pkg:=20add=20erc20=20(#49)?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: thanhpp --- go.mod | 1 + go.sum | 5 + pkg/erc20/ERC20.sol.abi | 1 + pkg/erc20/erc20.go | 779 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 786 insertions(+) create mode 100644 pkg/erc20/ERC20.sol.abi create mode 100644 pkg/erc20/erc20.go diff --git a/go.mod b/go.mod index 07edeab..86e844e 100644 --- a/go.mod +++ b/go.mod @@ -33,6 +33,7 @@ require ( github.com/decred/dcrd/dcrec/secp256k1/v4 v4.1.0 // indirect github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect github.com/ethereum/c-kzg-4844 v0.4.0 // indirect + github.com/fsnotify/fsnotify v1.6.0 // indirect github.com/go-ole/go-ole v1.3.0 // indirect github.com/golang/snappy v0.0.5-0.20220116011046-fa5810519dcb // indirect github.com/gorilla/websocket v1.4.2 // indirect diff --git a/go.sum b/go.sum index 404d60b..03387d3 100644 --- a/go.sum +++ b/go.sum @@ -24,6 +24,8 @@ github.com/btcsuite/btcd/chaincfg/chainhash v1.0.2 h1:KdUfX2zKommPRa+PD0sWZUyXe9 github.com/btcsuite/btcd/chaincfg/chainhash v1.0.2/go.mod h1:7SFka0XMvUgj3hfZtydOrQY2mwhPclbT2snogU7SQQc= github.com/cenkalti/backoff/v4 v4.2.0 h1:HN5dHm3WBOgndBH6E8V0q2jIYIR3s9yglV8k/+MN3u4= github.com/cenkalti/backoff/v4 v4.2.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE= +github.com/cespare/cp v0.1.0 h1:SE+dxFebS7Iik5LK0tsi1k9ZCxEaFX4AjQmoyA+1dJk= +github.com/cespare/cp v0.1.0/go.mod h1:SOGHArjBr4JWaSDEVpWpo/hNg6RoKrls6Oh40hiwW+s= github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44= github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= github.com/cockroachdb/errors v1.8.1 h1:A5+txlVZfOqFBDa4mGz2bUWSp0aHElvHX2bKkdbQu+Y= @@ -116,6 +118,8 @@ github.com/golang/snappy v0.0.5-0.20220116011046-fa5810519dcb/go.mod h1:/XxbfmMg github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU= github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= +github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0= +github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg= github.com/google/subcommands v1.2.0/go.mod h1:ZjhPrFU+Olkh9WazFPsl27BQ4UPiG37m3yTrtFlrHVk= github.com/google/uuid v1.4.0 h1:MtMxsa51/r9yyhkyLsVeVt0B+BGQZzpQiTQ4eHZ8bc4= github.com/google/uuid v1.4.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo= @@ -289,6 +293,7 @@ golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7w golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200519105757-fe76b779f299/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200814200057-3d37ad5750ed/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.8.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= diff --git a/pkg/erc20/ERC20.sol.abi b/pkg/erc20/ERC20.sol.abi new file mode 100644 index 0000000..b925133 --- /dev/null +++ b/pkg/erc20/ERC20.sol.abi @@ -0,0 +1 @@ +[{"inputs":[{"internalType":"string","name":"name_","type":"string"},{"internalType":"string","name":"symbol_","type":"string"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"subtractedValue","type":"uint256"}],"name":"decreaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"addedValue","type":"uint256"}],"name":"increaseAllowance","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}] \ No newline at end of file diff --git a/pkg/erc20/erc20.go b/pkg/erc20/erc20.go new file mode 100644 index 0000000..59bc6fd --- /dev/null +++ b/pkg/erc20/erc20.go @@ -0,0 +1,779 @@ +// Code generated - DO NOT EDIT. +// This file is a generated binding and any manual changes will be lost. + +package erc20 + +import ( + "errors" + "math/big" + "strings" + + ethereum "github.com/ethereum/go-ethereum" + "github.com/ethereum/go-ethereum/accounts/abi" + "github.com/ethereum/go-ethereum/accounts/abi/bind" + "github.com/ethereum/go-ethereum/common" + "github.com/ethereum/go-ethereum/core/types" + "github.com/ethereum/go-ethereum/event" +) + +// Reference imports to suppress errors if they are not otherwise used. +var ( + _ = errors.New + _ = big.NewInt + _ = strings.NewReader + _ = ethereum.NotFound + _ = bind.Bind + _ = common.Big1 + _ = types.BloomLookup + _ = event.NewSubscription +) + +// ERC20MetaData contains all meta data concerning the ERC20 contract. +var ERC20MetaData = &bind.MetaData{ + ABI: "[{\"inputs\":[{\"internalType\":\"string\",\"name\":\"name_\",\"type\":\"string\"},{\"internalType\":\"string\",\"name\":\"symbol_\",\"type\":\"string\"}],\"stateMutability\":\"nonpayable\",\"type\":\"constructor\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"Approval\",\"type\":\"event\"},{\"anonymous\":false,\"inputs\":[{\"indexed\":true,\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"indexed\":true,\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"indexed\":false,\"internalType\":\"uint256\",\"name\":\"value\",\"type\":\"uint256\"}],\"name\":\"Transfer\",\"type\":\"event\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"owner\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"}],\"name\":\"allowance\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"approve\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"account\",\"type\":\"address\"}],\"name\":\"balanceOf\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"decimals\",\"outputs\":[{\"internalType\":\"uint8\",\"name\":\"\",\"type\":\"uint8\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"subtractedValue\",\"type\":\"uint256\"}],\"name\":\"decreaseAllowance\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"spender\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"addedValue\",\"type\":\"uint256\"}],\"name\":\"increaseAllowance\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"name\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"symbol\",\"outputs\":[{\"internalType\":\"string\",\"name\":\"\",\"type\":\"string\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[],\"name\":\"totalSupply\",\"outputs\":[{\"internalType\":\"uint256\",\"name\":\"\",\"type\":\"uint256\"}],\"stateMutability\":\"view\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transfer\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"},{\"inputs\":[{\"internalType\":\"address\",\"name\":\"from\",\"type\":\"address\"},{\"internalType\":\"address\",\"name\":\"to\",\"type\":\"address\"},{\"internalType\":\"uint256\",\"name\":\"amount\",\"type\":\"uint256\"}],\"name\":\"transferFrom\",\"outputs\":[{\"internalType\":\"bool\",\"name\":\"\",\"type\":\"bool\"}],\"stateMutability\":\"nonpayable\",\"type\":\"function\"}]", +} + +// ERC20ABI is the input ABI used to generate the binding from. +// Deprecated: Use ERC20MetaData.ABI instead. +var ERC20ABI = ERC20MetaData.ABI + +// ERC20 is an auto generated Go binding around an Ethereum contract. +type ERC20 struct { + ERC20Caller // Read-only binding to the contract + ERC20Transactor // Write-only binding to the contract + ERC20Filterer // Log filterer for contract events +} + +// ERC20Caller is an auto generated read-only Go binding around an Ethereum contract. +type ERC20Caller struct { + contract *bind.BoundContract // Generic contract wrapper for the low level calls +} + +// ERC20Transactor is an auto generated write-only Go binding around an Ethereum contract. +type ERC20Transactor struct { + contract *bind.BoundContract // Generic contract wrapper for the low level calls +} + +// ERC20Filterer is an auto generated log filtering Go binding around an Ethereum contract events. +type ERC20Filterer struct { + contract *bind.BoundContract // Generic contract wrapper for the low level calls +} + +// ERC20Session is an auto generated Go binding around an Ethereum contract, +// with pre-set call and transact options. +type ERC20Session struct { + Contract *ERC20 // Generic contract binding to set the session for + CallOpts bind.CallOpts // Call options to use throughout this session + TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session +} + +// ERC20CallerSession is an auto generated read-only Go binding around an Ethereum contract, +// with pre-set call options. +type ERC20CallerSession struct { + Contract *ERC20Caller // Generic contract caller binding to set the session for + CallOpts bind.CallOpts // Call options to use throughout this session +} + +// ERC20TransactorSession is an auto generated write-only Go binding around an Ethereum contract, +// with pre-set transact options. +type ERC20TransactorSession struct { + Contract *ERC20Transactor // Generic contract transactor binding to set the session for + TransactOpts bind.TransactOpts // Transaction auth options to use throughout this session +} + +// ERC20Raw is an auto generated low-level Go binding around an Ethereum contract. +type ERC20Raw struct { + Contract *ERC20 // Generic contract binding to access the raw methods on +} + +// ERC20CallerRaw is an auto generated low-level read-only Go binding around an Ethereum contract. +type ERC20CallerRaw struct { + Contract *ERC20Caller // Generic read-only contract binding to access the raw methods on +} + +// ERC20TransactorRaw is an auto generated low-level write-only Go binding around an Ethereum contract. +type ERC20TransactorRaw struct { + Contract *ERC20Transactor // Generic write-only contract binding to access the raw methods on +} + +// NewERC20 creates a new instance of ERC20, bound to a specific deployed contract. +func NewERC20(address common.Address, backend bind.ContractBackend) (*ERC20, error) { + contract, err := bindERC20(address, backend, backend, backend) + if err != nil { + return nil, err + } + return &ERC20{ERC20Caller: ERC20Caller{contract: contract}, ERC20Transactor: ERC20Transactor{contract: contract}, ERC20Filterer: ERC20Filterer{contract: contract}}, nil +} + +// NewERC20Caller creates a new read-only instance of ERC20, bound to a specific deployed contract. +func NewERC20Caller(address common.Address, caller bind.ContractCaller) (*ERC20Caller, error) { + contract, err := bindERC20(address, caller, nil, nil) + if err != nil { + return nil, err + } + return &ERC20Caller{contract: contract}, nil +} + +// NewERC20Transactor creates a new write-only instance of ERC20, bound to a specific deployed contract. +func NewERC20Transactor(address common.Address, transactor bind.ContractTransactor) (*ERC20Transactor, error) { + contract, err := bindERC20(address, nil, transactor, nil) + if err != nil { + return nil, err + } + return &ERC20Transactor{contract: contract}, nil +} + +// NewERC20Filterer creates a new log filterer instance of ERC20, bound to a specific deployed contract. +func NewERC20Filterer(address common.Address, filterer bind.ContractFilterer) (*ERC20Filterer, error) { + contract, err := bindERC20(address, nil, nil, filterer) + if err != nil { + return nil, err + } + return &ERC20Filterer{contract: contract}, nil +} + +// bindERC20 binds a generic wrapper to an already deployed contract. +func bindERC20(address common.Address, caller bind.ContractCaller, transactor bind.ContractTransactor, filterer bind.ContractFilterer) (*bind.BoundContract, error) { + parsed, err := abi.JSON(strings.NewReader(ERC20ABI)) + if err != nil { + return nil, err + } + return bind.NewBoundContract(address, parsed, caller, transactor, filterer), nil +} + +// Call invokes the (constant) contract method with params as input values and +// sets the output to result. The result type might be a single field for simple +// returns, a slice of interfaces for anonymous returns and a struct for named +// returns. +func (_ERC20 *ERC20Raw) Call(opts *bind.CallOpts, result *[]interface{}, method string, params ...interface{}) error { + return _ERC20.Contract.ERC20Caller.contract.Call(opts, result, method, params...) +} + +// Transfer initiates a plain transaction to move funds to the contract, calling +// its default method if one is available. +func (_ERC20 *ERC20Raw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) { + return _ERC20.Contract.ERC20Transactor.contract.Transfer(opts) +} + +// Transact invokes the (paid) contract method with params as input values. +func (_ERC20 *ERC20Raw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) { + return _ERC20.Contract.ERC20Transactor.contract.Transact(opts, method, params...) +} + +// Call invokes the (constant) contract method with params as input values and +// sets the output to result. The result type might be a single field for simple +// returns, a slice of interfaces for anonymous returns and a struct for named +// returns. +func (_ERC20 *ERC20CallerRaw) Call(opts *bind.CallOpts, result *[]interface{}, method string, params ...interface{}) error { + return _ERC20.Contract.contract.Call(opts, result, method, params...) +} + +// Transfer initiates a plain transaction to move funds to the contract, calling +// its default method if one is available. +func (_ERC20 *ERC20TransactorRaw) Transfer(opts *bind.TransactOpts) (*types.Transaction, error) { + return _ERC20.Contract.contract.Transfer(opts) +} + +// Transact invokes the (paid) contract method with params as input values. +func (_ERC20 *ERC20TransactorRaw) Transact(opts *bind.TransactOpts, method string, params ...interface{}) (*types.Transaction, error) { + return _ERC20.Contract.contract.Transact(opts, method, params...) +} + +// Allowance is a free data retrieval call binding the contract method 0xdd62ed3e. +// +// Solidity: function allowance(address owner, address spender) view returns(uint256) +func (_ERC20 *ERC20Caller) Allowance(opts *bind.CallOpts, owner common.Address, spender common.Address) (*big.Int, error) { + var out []interface{} + err := _ERC20.contract.Call(opts, &out, "allowance", owner, spender) + + if err != nil { + return *new(*big.Int), err + } + + out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int) + + return out0, err + +} + +// Allowance is a free data retrieval call binding the contract method 0xdd62ed3e. +// +// Solidity: function allowance(address owner, address spender) view returns(uint256) +func (_ERC20 *ERC20Session) Allowance(owner common.Address, spender common.Address) (*big.Int, error) { + return _ERC20.Contract.Allowance(&_ERC20.CallOpts, owner, spender) +} + +// Allowance is a free data retrieval call binding the contract method 0xdd62ed3e. +// +// Solidity: function allowance(address owner, address spender) view returns(uint256) +func (_ERC20 *ERC20CallerSession) Allowance(owner common.Address, spender common.Address) (*big.Int, error) { + return _ERC20.Contract.Allowance(&_ERC20.CallOpts, owner, spender) +} + +// BalanceOf is a free data retrieval call binding the contract method 0x70a08231. +// +// Solidity: function balanceOf(address account) view returns(uint256) +func (_ERC20 *ERC20Caller) BalanceOf(opts *bind.CallOpts, account common.Address) (*big.Int, error) { + var out []interface{} + err := _ERC20.contract.Call(opts, &out, "balanceOf", account) + + if err != nil { + return *new(*big.Int), err + } + + out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int) + + return out0, err + +} + +// BalanceOf is a free data retrieval call binding the contract method 0x70a08231. +// +// Solidity: function balanceOf(address account) view returns(uint256) +func (_ERC20 *ERC20Session) BalanceOf(account common.Address) (*big.Int, error) { + return _ERC20.Contract.BalanceOf(&_ERC20.CallOpts, account) +} + +// BalanceOf is a free data retrieval call binding the contract method 0x70a08231. +// +// Solidity: function balanceOf(address account) view returns(uint256) +func (_ERC20 *ERC20CallerSession) BalanceOf(account common.Address) (*big.Int, error) { + return _ERC20.Contract.BalanceOf(&_ERC20.CallOpts, account) +} + +// Decimals is a free data retrieval call binding the contract method 0x313ce567. +// +// Solidity: function decimals() view returns(uint8) +func (_ERC20 *ERC20Caller) Decimals(opts *bind.CallOpts) (uint8, error) { + var out []interface{} + err := _ERC20.contract.Call(opts, &out, "decimals") + + if err != nil { + return *new(uint8), err + } + + out0 := *abi.ConvertType(out[0], new(uint8)).(*uint8) + + return out0, err + +} + +// Decimals is a free data retrieval call binding the contract method 0x313ce567. +// +// Solidity: function decimals() view returns(uint8) +func (_ERC20 *ERC20Session) Decimals() (uint8, error) { + return _ERC20.Contract.Decimals(&_ERC20.CallOpts) +} + +// Decimals is a free data retrieval call binding the contract method 0x313ce567. +// +// Solidity: function decimals() view returns(uint8) +func (_ERC20 *ERC20CallerSession) Decimals() (uint8, error) { + return _ERC20.Contract.Decimals(&_ERC20.CallOpts) +} + +// Name is a free data retrieval call binding the contract method 0x06fdde03. +// +// Solidity: function name() view returns(string) +func (_ERC20 *ERC20Caller) Name(opts *bind.CallOpts) (string, error) { + var out []interface{} + err := _ERC20.contract.Call(opts, &out, "name") + + if err != nil { + return *new(string), err + } + + out0 := *abi.ConvertType(out[0], new(string)).(*string) + + return out0, err + +} + +// Name is a free data retrieval call binding the contract method 0x06fdde03. +// +// Solidity: function name() view returns(string) +func (_ERC20 *ERC20Session) Name() (string, error) { + return _ERC20.Contract.Name(&_ERC20.CallOpts) +} + +// Name is a free data retrieval call binding the contract method 0x06fdde03. +// +// Solidity: function name() view returns(string) +func (_ERC20 *ERC20CallerSession) Name() (string, error) { + return _ERC20.Contract.Name(&_ERC20.CallOpts) +} + +// Symbol is a free data retrieval call binding the contract method 0x95d89b41. +// +// Solidity: function symbol() view returns(string) +func (_ERC20 *ERC20Caller) Symbol(opts *bind.CallOpts) (string, error) { + var out []interface{} + err := _ERC20.contract.Call(opts, &out, "symbol") + + if err != nil { + return *new(string), err + } + + out0 := *abi.ConvertType(out[0], new(string)).(*string) + + return out0, err + +} + +// Symbol is a free data retrieval call binding the contract method 0x95d89b41. +// +// Solidity: function symbol() view returns(string) +func (_ERC20 *ERC20Session) Symbol() (string, error) { + return _ERC20.Contract.Symbol(&_ERC20.CallOpts) +} + +// Symbol is a free data retrieval call binding the contract method 0x95d89b41. +// +// Solidity: function symbol() view returns(string) +func (_ERC20 *ERC20CallerSession) Symbol() (string, error) { + return _ERC20.Contract.Symbol(&_ERC20.CallOpts) +} + +// TotalSupply is a free data retrieval call binding the contract method 0x18160ddd. +// +// Solidity: function totalSupply() view returns(uint256) +func (_ERC20 *ERC20Caller) TotalSupply(opts *bind.CallOpts) (*big.Int, error) { + var out []interface{} + err := _ERC20.contract.Call(opts, &out, "totalSupply") + + if err != nil { + return *new(*big.Int), err + } + + out0 := *abi.ConvertType(out[0], new(*big.Int)).(**big.Int) + + return out0, err + +} + +// TotalSupply is a free data retrieval call binding the contract method 0x18160ddd. +// +// Solidity: function totalSupply() view returns(uint256) +func (_ERC20 *ERC20Session) TotalSupply() (*big.Int, error) { + return _ERC20.Contract.TotalSupply(&_ERC20.CallOpts) +} + +// TotalSupply is a free data retrieval call binding the contract method 0x18160ddd. +// +// Solidity: function totalSupply() view returns(uint256) +func (_ERC20 *ERC20CallerSession) TotalSupply() (*big.Int, error) { + return _ERC20.Contract.TotalSupply(&_ERC20.CallOpts) +} + +// Approve is a paid mutator transaction binding the contract method 0x095ea7b3. +// +// Solidity: function approve(address spender, uint256 amount) returns(bool) +func (_ERC20 *ERC20Transactor) Approve(opts *bind.TransactOpts, spender common.Address, amount *big.Int) (*types.Transaction, error) { + return _ERC20.contract.Transact(opts, "approve", spender, amount) +} + +// Approve is a paid mutator transaction binding the contract method 0x095ea7b3. +// +// Solidity: function approve(address spender, uint256 amount) returns(bool) +func (_ERC20 *ERC20Session) Approve(spender common.Address, amount *big.Int) (*types.Transaction, error) { + return _ERC20.Contract.Approve(&_ERC20.TransactOpts, spender, amount) +} + +// Approve is a paid mutator transaction binding the contract method 0x095ea7b3. +// +// Solidity: function approve(address spender, uint256 amount) returns(bool) +func (_ERC20 *ERC20TransactorSession) Approve(spender common.Address, amount *big.Int) (*types.Transaction, error) { + return _ERC20.Contract.Approve(&_ERC20.TransactOpts, spender, amount) +} + +// DecreaseAllowance is a paid mutator transaction binding the contract method 0xa457c2d7. +// +// Solidity: function decreaseAllowance(address spender, uint256 subtractedValue) returns(bool) +func (_ERC20 *ERC20Transactor) DecreaseAllowance(opts *bind.TransactOpts, spender common.Address, subtractedValue *big.Int) (*types.Transaction, error) { + return _ERC20.contract.Transact(opts, "decreaseAllowance", spender, subtractedValue) +} + +// DecreaseAllowance is a paid mutator transaction binding the contract method 0xa457c2d7. +// +// Solidity: function decreaseAllowance(address spender, uint256 subtractedValue) returns(bool) +func (_ERC20 *ERC20Session) DecreaseAllowance(spender common.Address, subtractedValue *big.Int) (*types.Transaction, error) { + return _ERC20.Contract.DecreaseAllowance(&_ERC20.TransactOpts, spender, subtractedValue) +} + +// DecreaseAllowance is a paid mutator transaction binding the contract method 0xa457c2d7. +// +// Solidity: function decreaseAllowance(address spender, uint256 subtractedValue) returns(bool) +func (_ERC20 *ERC20TransactorSession) DecreaseAllowance(spender common.Address, subtractedValue *big.Int) (*types.Transaction, error) { + return _ERC20.Contract.DecreaseAllowance(&_ERC20.TransactOpts, spender, subtractedValue) +} + +// IncreaseAllowance is a paid mutator transaction binding the contract method 0x39509351. +// +// Solidity: function increaseAllowance(address spender, uint256 addedValue) returns(bool) +func (_ERC20 *ERC20Transactor) IncreaseAllowance(opts *bind.TransactOpts, spender common.Address, addedValue *big.Int) (*types.Transaction, error) { + return _ERC20.contract.Transact(opts, "increaseAllowance", spender, addedValue) +} + +// IncreaseAllowance is a paid mutator transaction binding the contract method 0x39509351. +// +// Solidity: function increaseAllowance(address spender, uint256 addedValue) returns(bool) +func (_ERC20 *ERC20Session) IncreaseAllowance(spender common.Address, addedValue *big.Int) (*types.Transaction, error) { + return _ERC20.Contract.IncreaseAllowance(&_ERC20.TransactOpts, spender, addedValue) +} + +// IncreaseAllowance is a paid mutator transaction binding the contract method 0x39509351. +// +// Solidity: function increaseAllowance(address spender, uint256 addedValue) returns(bool) +func (_ERC20 *ERC20TransactorSession) IncreaseAllowance(spender common.Address, addedValue *big.Int) (*types.Transaction, error) { + return _ERC20.Contract.IncreaseAllowance(&_ERC20.TransactOpts, spender, addedValue) +} + +// Transfer is a paid mutator transaction binding the contract method 0xa9059cbb. +// +// Solidity: function transfer(address to, uint256 amount) returns(bool) +func (_ERC20 *ERC20Transactor) Transfer(opts *bind.TransactOpts, to common.Address, amount *big.Int) (*types.Transaction, error) { + return _ERC20.contract.Transact(opts, "transfer", to, amount) +} + +// Transfer is a paid mutator transaction binding the contract method 0xa9059cbb. +// +// Solidity: function transfer(address to, uint256 amount) returns(bool) +func (_ERC20 *ERC20Session) Transfer(to common.Address, amount *big.Int) (*types.Transaction, error) { + return _ERC20.Contract.Transfer(&_ERC20.TransactOpts, to, amount) +} + +// Transfer is a paid mutator transaction binding the contract method 0xa9059cbb. +// +// Solidity: function transfer(address to, uint256 amount) returns(bool) +func (_ERC20 *ERC20TransactorSession) Transfer(to common.Address, amount *big.Int) (*types.Transaction, error) { + return _ERC20.Contract.Transfer(&_ERC20.TransactOpts, to, amount) +} + +// TransferFrom is a paid mutator transaction binding the contract method 0x23b872dd. +// +// Solidity: function transferFrom(address from, address to, uint256 amount) returns(bool) +func (_ERC20 *ERC20Transactor) TransferFrom(opts *bind.TransactOpts, from common.Address, to common.Address, amount *big.Int) (*types.Transaction, error) { + return _ERC20.contract.Transact(opts, "transferFrom", from, to, amount) +} + +// TransferFrom is a paid mutator transaction binding the contract method 0x23b872dd. +// +// Solidity: function transferFrom(address from, address to, uint256 amount) returns(bool) +func (_ERC20 *ERC20Session) TransferFrom(from common.Address, to common.Address, amount *big.Int) (*types.Transaction, error) { + return _ERC20.Contract.TransferFrom(&_ERC20.TransactOpts, from, to, amount) +} + +// TransferFrom is a paid mutator transaction binding the contract method 0x23b872dd. +// +// Solidity: function transferFrom(address from, address to, uint256 amount) returns(bool) +func (_ERC20 *ERC20TransactorSession) TransferFrom(from common.Address, to common.Address, amount *big.Int) (*types.Transaction, error) { + return _ERC20.Contract.TransferFrom(&_ERC20.TransactOpts, from, to, amount) +} + +// ERC20ApprovalIterator is returned from FilterApproval and is used to iterate over the raw logs and unpacked data for Approval events raised by the ERC20 contract. +type ERC20ApprovalIterator struct { + Event *ERC20Approval // Event containing the contract specifics and raw log + + contract *bind.BoundContract // Generic contract to use for unpacking event data + event string // Event name to use for unpacking event data + + logs chan types.Log // Log channel receiving the found contract events + sub ethereum.Subscription // Subscription for errors, completion and termination + done bool // Whether the subscription completed delivering logs + fail error // Occurred error to stop iteration +} + +// Next advances the iterator to the subsequent event, returning whether there +// are any more events found. In case of a retrieval or parsing error, false is +// returned and Error() can be queried for the exact failure. +func (it *ERC20ApprovalIterator) Next() bool { + // If the iterator failed, stop iterating + if it.fail != nil { + return false + } + // If the iterator completed, deliver directly whatever's available + if it.done { + select { + case log := <-it.logs: + it.Event = new(ERC20Approval) + if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil { + it.fail = err + return false + } + it.Event.Raw = log + return true + + default: + return false + } + } + // Iterator still in progress, wait for either a data or an error event + select { + case log := <-it.logs: + it.Event = new(ERC20Approval) + if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil { + it.fail = err + return false + } + it.Event.Raw = log + return true + + case err := <-it.sub.Err(): + it.done = true + it.fail = err + return it.Next() + } +} + +// Error returns any retrieval or parsing error occurred during filtering. +func (it *ERC20ApprovalIterator) Error() error { + return it.fail +} + +// Close terminates the iteration process, releasing any pending underlying +// resources. +func (it *ERC20ApprovalIterator) Close() error { + it.sub.Unsubscribe() + return nil +} + +// ERC20Approval represents a Approval event raised by the ERC20 contract. +type ERC20Approval struct { + Owner common.Address + Spender common.Address + Value *big.Int + Raw types.Log // Blockchain specific contextual infos +} + +// FilterApproval is a free log retrieval operation binding the contract event 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925. +// +// Solidity: event Approval(address indexed owner, address indexed spender, uint256 value) +func (_ERC20 *ERC20Filterer) FilterApproval(opts *bind.FilterOpts, owner []common.Address, spender []common.Address) (*ERC20ApprovalIterator, error) { + + var ownerRule []interface{} + for _, ownerItem := range owner { + ownerRule = append(ownerRule, ownerItem) + } + var spenderRule []interface{} + for _, spenderItem := range spender { + spenderRule = append(spenderRule, spenderItem) + } + + logs, sub, err := _ERC20.contract.FilterLogs(opts, "Approval", ownerRule, spenderRule) + if err != nil { + return nil, err + } + return &ERC20ApprovalIterator{contract: _ERC20.contract, event: "Approval", logs: logs, sub: sub}, nil +} + +// WatchApproval is a free log subscription operation binding the contract event 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925. +// +// Solidity: event Approval(address indexed owner, address indexed spender, uint256 value) +func (_ERC20 *ERC20Filterer) WatchApproval(opts *bind.WatchOpts, sink chan<- *ERC20Approval, owner []common.Address, spender []common.Address) (event.Subscription, error) { + + var ownerRule []interface{} + for _, ownerItem := range owner { + ownerRule = append(ownerRule, ownerItem) + } + var spenderRule []interface{} + for _, spenderItem := range spender { + spenderRule = append(spenderRule, spenderItem) + } + + logs, sub, err := _ERC20.contract.WatchLogs(opts, "Approval", ownerRule, spenderRule) + if err != nil { + return nil, err + } + return event.NewSubscription(func(quit <-chan struct{}) error { + defer sub.Unsubscribe() + for { + select { + case log := <-logs: + // New log arrived, parse the event and forward to the user + event := new(ERC20Approval) + if err := _ERC20.contract.UnpackLog(event, "Approval", log); err != nil { + return err + } + event.Raw = log + + select { + case sink <- event: + case err := <-sub.Err(): + return err + case <-quit: + return nil + } + case err := <-sub.Err(): + return err + case <-quit: + return nil + } + } + }), nil +} + +// ParseApproval is a log parse operation binding the contract event 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925. +// +// Solidity: event Approval(address indexed owner, address indexed spender, uint256 value) +func (_ERC20 *ERC20Filterer) ParseApproval(log types.Log) (*ERC20Approval, error) { + event := new(ERC20Approval) + if err := _ERC20.contract.UnpackLog(event, "Approval", log); err != nil { + return nil, err + } + event.Raw = log + return event, nil +} + +// ERC20TransferIterator is returned from FilterTransfer and is used to iterate over the raw logs and unpacked data for Transfer events raised by the ERC20 contract. +type ERC20TransferIterator struct { + Event *ERC20Transfer // Event containing the contract specifics and raw log + + contract *bind.BoundContract // Generic contract to use for unpacking event data + event string // Event name to use for unpacking event data + + logs chan types.Log // Log channel receiving the found contract events + sub ethereum.Subscription // Subscription for errors, completion and termination + done bool // Whether the subscription completed delivering logs + fail error // Occurred error to stop iteration +} + +// Next advances the iterator to the subsequent event, returning whether there +// are any more events found. In case of a retrieval or parsing error, false is +// returned and Error() can be queried for the exact failure. +func (it *ERC20TransferIterator) Next() bool { + // If the iterator failed, stop iterating + if it.fail != nil { + return false + } + // If the iterator completed, deliver directly whatever's available + if it.done { + select { + case log := <-it.logs: + it.Event = new(ERC20Transfer) + if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil { + it.fail = err + return false + } + it.Event.Raw = log + return true + + default: + return false + } + } + // Iterator still in progress, wait for either a data or an error event + select { + case log := <-it.logs: + it.Event = new(ERC20Transfer) + if err := it.contract.UnpackLog(it.Event, it.event, log); err != nil { + it.fail = err + return false + } + it.Event.Raw = log + return true + + case err := <-it.sub.Err(): + it.done = true + it.fail = err + return it.Next() + } +} + +// Error returns any retrieval or parsing error occurred during filtering. +func (it *ERC20TransferIterator) Error() error { + return it.fail +} + +// Close terminates the iteration process, releasing any pending underlying +// resources. +func (it *ERC20TransferIterator) Close() error { + it.sub.Unsubscribe() + return nil +} + +// ERC20Transfer represents a Transfer event raised by the ERC20 contract. +type ERC20Transfer struct { + From common.Address + To common.Address + Value *big.Int + Raw types.Log // Blockchain specific contextual infos +} + +// FilterTransfer is a free log retrieval operation binding the contract event 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef. +// +// Solidity: event Transfer(address indexed from, address indexed to, uint256 value) +func (_ERC20 *ERC20Filterer) FilterTransfer(opts *bind.FilterOpts, from []common.Address, to []common.Address) (*ERC20TransferIterator, error) { + + var fromRule []interface{} + for _, fromItem := range from { + fromRule = append(fromRule, fromItem) + } + var toRule []interface{} + for _, toItem := range to { + toRule = append(toRule, toItem) + } + + logs, sub, err := _ERC20.contract.FilterLogs(opts, "Transfer", fromRule, toRule) + if err != nil { + return nil, err + } + return &ERC20TransferIterator{contract: _ERC20.contract, event: "Transfer", logs: logs, sub: sub}, nil +} + +// WatchTransfer is a free log subscription operation binding the contract event 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef. +// +// Solidity: event Transfer(address indexed from, address indexed to, uint256 value) +func (_ERC20 *ERC20Filterer) WatchTransfer(opts *bind.WatchOpts, sink chan<- *ERC20Transfer, from []common.Address, to []common.Address) (event.Subscription, error) { + + var fromRule []interface{} + for _, fromItem := range from { + fromRule = append(fromRule, fromItem) + } + var toRule []interface{} + for _, toItem := range to { + toRule = append(toRule, toItem) + } + + logs, sub, err := _ERC20.contract.WatchLogs(opts, "Transfer", fromRule, toRule) + if err != nil { + return nil, err + } + return event.NewSubscription(func(quit <-chan struct{}) error { + defer sub.Unsubscribe() + for { + select { + case log := <-logs: + // New log arrived, parse the event and forward to the user + event := new(ERC20Transfer) + if err := _ERC20.contract.UnpackLog(event, "Transfer", log); err != nil { + return err + } + event.Raw = log + + select { + case sink <- event: + case err := <-sub.Err(): + return err + case <-quit: + return nil + } + case err := <-sub.Err(): + return err + case <-quit: + return nil + } + } + }), nil +} + +// ParseTransfer is a log parse operation binding the contract event 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef. +// +// Solidity: event Transfer(address indexed from, address indexed to, uint256 value) +func (_ERC20 *ERC20Filterer) ParseTransfer(log types.Log) (*ERC20Transfer, error) { + event := new(ERC20Transfer) + if err := _ERC20.contract.UnpackLog(event, "Transfer", log); err != nil { + return nil, err + } + event.Raw = log + return event, nil +} \ No newline at end of file