6998 lines
310 KiB
JSON
6998 lines
310 KiB
JSON
{
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"fileName": "ERC20.sol",
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"contractName": "ERC20",
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"source": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.6.0;\n\nimport \"../../GSN/Context.sol\";\nimport \"./IERC20.sol\";\nimport \"../../math/SafeMath.sol\";\nimport \"../../utils/Address.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n * For a generic mechanism see {ERC20PresetMinterPauser}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * We have followed general OpenZeppelin guidelines: functions revert instead\n * of returning `false` on failure. This behavior is nonetheless conventional\n * and does not conflict with the expectations of ERC20 applications.\n *\n * Additionally, an {Approval} event is emitted on calls to {transferFrom}.\n * This allows applications to reconstruct the allowance for all accounts just\n * by listening to said events. Other implementations of the EIP may not emit\n * these events, as it isn't required by the specification.\n *\n * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}\n * functions have been added to mitigate the well-known issues around setting\n * allowances. See {IERC20-approve}.\n */\ncontract ERC20 is Context, IERC20 {\n using SafeMath for uint256;\n using Address for address;\n\n mapping (address => uint256) private _balances;\n\n mapping (address => mapping (address => uint256)) private _allowances;\n\n uint256 private _totalSupply;\n\n string private _name;\n string private _symbol;\n uint8 private _decimals;\n\n /**\n * @dev Sets the values for {name} and {symbol}, initializes {decimals} with\n * a default value of 18.\n *\n * To select a different value for {decimals}, use {_setupDecimals}.\n *\n * All three of these values are immutable: they can only be set once during\n * construction.\n */\n constructor (string memory name, string memory symbol) public {\n _name = name;\n _symbol = symbol;\n _decimals = 18;\n }\n\n /**\n * @dev Returns the name of the token.\n */\n function name() public view returns (string memory) {\n return _name;\n }\n\n /**\n * @dev Returns the symbol of the token, usually a shorter version of the\n * name.\n */\n function symbol() public view returns (string memory) {\n return _symbol;\n }\n\n /**\n * @dev Returns the number of decimals used to get its user representation.\n * For example, if `decimals` equals `2`, a balance of `505` tokens should\n * be displayed to a user as `5,05` (`505 / 10 ** 2`).\n *\n * Tokens usually opt for a value of 18, imitating the relationship between\n * Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is\n * called.\n *\n * NOTE: This information is only used for _display_ purposes: it in\n * no way affects any of the arithmetic of the contract, including\n * {IERC20-balanceOf} and {IERC20-transfer}.\n */\n function decimals() public view returns (uint8) {\n return _decimals;\n }\n\n /**\n * @dev See {IERC20-totalSupply}.\n */\n function totalSupply() public view override returns (uint256) {\n return _totalSupply;\n }\n\n /**\n * @dev See {IERC20-balanceOf}.\n */\n function balanceOf(address account) public view override returns (uint256) {\n return _balances[account];\n }\n\n /**\n * @dev See {IERC20-transfer}.\n *\n * Requirements:\n *\n * - `recipient` cannot be the zero address.\n * - the caller must have a balance of at least `amount`.\n */\n function transfer(address recipient, uint256 amount) public virtual override returns (bool) {\n _transfer(_msgSender(), recipient, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-allowance}.\n */\n function allowance(address owner, address spender) public view virtual override returns (uint256) {\n return _allowances[owner][spender];\n }\n\n /**\n * @dev See {IERC20-approve}.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function approve(address spender, uint256 amount) public virtual override returns (bool) {\n _approve(_msgSender(), spender, amount);\n return true;\n }\n\n /**\n * @dev See {IERC20-transferFrom}.\n *\n * Emits an {Approval} event indicating the updated allowance. This is not\n * required by the EIP. See the note at the beginning of {ERC20};\n *\n * Requirements:\n * - `sender` and `recipient` cannot be the zero address.\n * - `sender` must have a balance of at least `amount`.\n * - the caller must have allowance for ``sender``'s tokens of at least\n * `amount`.\n */\n function transferFrom(address sender, address recipient, uint256 amount) public virtual override returns (bool) {\n _transfer(sender, recipient, amount);\n _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, \"ERC20: transfer amount exceeds allowance\"));\n return true;\n }\n\n /**\n * @dev Atomically increases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n */\n function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));\n return true;\n }\n\n /**\n * @dev Atomically decreases the allowance granted to `spender` by the caller.\n *\n * This is an alternative to {approve} that can be used as a mitigation for\n * problems described in {IERC20-approve}.\n *\n * Emits an {Approval} event indicating the updated allowance.\n *\n * Requirements:\n *\n * - `spender` cannot be the zero address.\n * - `spender` must have allowance for the caller of at least\n * `subtractedValue`.\n */\n function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {\n _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, \"ERC20: decreased allowance below zero\"));\n return true;\n }\n\n /**\n * @dev Moves tokens `amount` from `sender` to `recipient`.\n *\n * This is internal function is equivalent to {transfer}, and can be used to\n * e.g. implement automatic token fees, slashing mechanisms, etc.\n *\n * Emits a {Transfer} event.\n *\n * Requirements:\n *\n * - `sender` cannot be the zero address.\n * - `recipient` cannot be the zero address.\n * - `sender` must have a balance of at least `amount`.\n */\n function _transfer(address sender, address recipient, uint256 amount) internal virtual {\n require(sender != address(0), \"ERC20: transfer from the zero address\");\n require(recipient != address(0), \"ERC20: transfer to the zero address\");\n\n _beforeTokenTransfer(sender, recipient, amount);\n\n _balances[sender] = _balances[sender].sub(amount, \"ERC20: transfer amount exceeds balance\");\n _balances[recipient] = _balances[recipient].add(amount);\n emit Transfer(sender, recipient, amount);\n }\n\n /** @dev Creates `amount` tokens and assigns them to `account`, increasing\n * the total supply.\n *\n * Emits a {Transfer} event with `from` set to the zero address.\n *\n * Requirements\n *\n * - `to` cannot be the zero address.\n */\n function _mint(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: mint to the zero address\");\n\n _beforeTokenTransfer(address(0), account, amount);\n\n _totalSupply = _totalSupply.add(amount);\n _balances[account] = _balances[account].add(amount);\n emit Transfer(address(0), account, amount);\n }\n\n /**\n * @dev Destroys `amount` tokens from `account`, reducing the\n * total supply.\n *\n * Emits a {Transfer} event with `to` set to the zero address.\n *\n * Requirements\n *\n * - `account` cannot be the zero address.\n * - `account` must have at least `amount` tokens.\n */\n function _burn(address account, uint256 amount) internal virtual {\n require(account != address(0), \"ERC20: burn from the zero address\");\n\n _beforeTokenTransfer(account, address(0), amount);\n\n _balances[account] = _balances[account].sub(amount, \"ERC20: burn amount exceeds balance\");\n _totalSupply = _totalSupply.sub(amount);\n emit Transfer(account, address(0), amount);\n }\n\n /**\n * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.\n *\n * This is internal function is equivalent to `approve`, and can be used to\n * e.g. set automatic allowances for certain subsystems, etc.\n *\n * Emits an {Approval} event.\n *\n * Requirements:\n *\n * - `owner` cannot be the zero address.\n * - `spender` cannot be the zero address.\n */\n function _approve(address owner, address spender, uint256 amount) internal virtual {\n require(owner != address(0), \"ERC20: approve from the zero address\");\n require(spender != address(0), \"ERC20: approve to the zero address\");\n\n _allowances[owner][spender] = amount;\n emit Approval(owner, spender, amount);\n }\n\n /**\n * @dev Sets {decimals} to a value other than the default one of 18.\n *\n * WARNING: This function should only be called from the constructor. Most\n * applications that interact with token contracts will not expect\n * {decimals} to ever change, and may work incorrectly if it does.\n */\n function _setupDecimals(uint8 decimals_) internal {\n _decimals = decimals_;\n }\n\n /**\n * @dev Hook that is called before any transfer of tokens. This includes\n * minting and burning.\n *\n * Calling conditions:\n *\n * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n * will be to transferred to `to`.\n * - when `from` is zero, `amount` tokens will be minted for `to`.\n * - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n * - `from` and `to` are never both zero.\n *\n * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].\n */\n function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual { }\n}\n",
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"sourcePath": "contracts/token/ERC20/ERC20.sol",
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"sourceMap": "1345:9446:84:-:0;;;2013:141;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;2093:4;2085:5;:12;;;;;;;;;;;;:::i;:::-;;2117:6;2107:7;:16;;;;;;;;;;;;:::i;:::-;;2145:2;2133:9;;:14;;;;;;;;;;;;;;;;;;2013:141;;1345:9446;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;:::i;:::-;;;:::o;:::-;;;;;;;;;;;;;;;;;;;;;;;;;;;:::o;:::-;;;;;;;",
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"abi": [
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{
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"inputs": [
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{
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"internalType": "string",
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"name": "name",
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"type": "string"
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},
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{
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"internalType": "string",
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"name": "symbol",
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"type": "string"
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}
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],
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"stateMutability": "nonpayable",
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"type": "constructor"
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},
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{
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"anonymous": false,
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"inputs": [
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{
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"indexed": true,
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"internalType": "address",
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"name": "owner",
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"type": "address"
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},
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{
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"indexed": true,
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"internalType": "address",
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"name": "spender",
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"type": "address"
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},
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{
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"indexed": false,
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"internalType": "uint256",
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"name": "value",
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"type": "uint256"
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}
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],
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"name": "Approval",
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"type": "event"
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},
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{
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"anonymous": false,
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"inputs": [
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{
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"indexed": true,
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"internalType": "address",
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"name": "from",
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"type": "address"
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},
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{
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"indexed": true,
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"internalType": "address",
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"name": "to",
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"type": "address"
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},
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{
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"indexed": false,
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"internalType": "uint256",
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"name": "value",
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"type": "uint256"
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}
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],
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"name": "Transfer",
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"type": "event"
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},
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{
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"inputs": [
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{
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"internalType": "address",
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"name": "owner",
|
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"type": "address"
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},
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{
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"internalType": "address",
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"name": "spender",
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"type": "address"
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}
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],
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"name": "allowance",
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"outputs": [
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{
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"internalType": "uint256",
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"name": "",
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"type": "uint256"
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}
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],
|
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"stateMutability": "view",
|
|
"type": "function"
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|
},
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{
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"inputs": [
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{
|
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"internalType": "address",
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"name": "spender",
|
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"type": "address"
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},
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{
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"internalType": "uint256",
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"name": "amount",
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"type": "uint256"
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}
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],
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"name": "approve",
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"outputs": [
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{
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"internalType": "bool",
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"name": "",
|
|
"type": "bool"
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|
}
|
|
],
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"stateMutability": "nonpayable",
|
|
"type": "function"
|
|
},
|
|
{
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"inputs": [
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{
|
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"internalType": "address",
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"name": "account",
|
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"type": "address"
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}
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],
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"name": "balanceOf",
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"outputs": [
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{
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|
"internalType": "uint256",
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|
"name": "",
|
|
"type": "uint256"
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|
}
|
|
],
|
|
"stateMutability": "view",
|
|
"type": "function"
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|
},
|
|
{
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|
"inputs": [],
|
|
"name": "decimals",
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"outputs": [
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{
|
|
"internalType": "uint8",
|
|
"name": "",
|
|
"type": "uint8"
|
|
}
|
|
],
|
|
"stateMutability": "view",
|
|
"type": "function"
|
|
},
|
|
{
|
|
"inputs": [
|
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{
|
|
"internalType": "address",
|
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"name": "spender",
|
|
"type": "address"
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|
},
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{
|
|
"internalType": "uint256",
|
|
"name": "subtractedValue",
|
|
"type": "uint256"
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|
}
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|
],
|
|
"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": "recipient",
|
|
"type": "address"
|
|
},
|
|
{
|
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"text": " @dev Returns the number of decimals used to get its user representation.\n For example, if `decimals` equals `2`, a balance of `505` tokens should\n be displayed to a user as `5,05` (`505 / 10 ** 2`).\n Tokens usually opt for a value of 18, imitating the relationship between\n Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is\n called.\n NOTE: This information is only used for _display_ purposes: it in\n no way affects any of the arithmetic of the contract, including\n {IERC20-balanceOf} and {IERC20-transfer}."
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"text": " @dev See {IERC20-balanceOf}."
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}
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}
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}
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}
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},
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],
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},
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},
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}
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},
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"typeString": "literal_string \"ERC20: mint to the zero address\""
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},
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}
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],
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"typeString": "literal_string \"ERC20: mint to the zero address\""
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}
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],
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|
|
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|
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-18,
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-18
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],
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|
|
}
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|
},
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}
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},
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},
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|
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}
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],
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],
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},
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"typeString": "literal_string \"ERC20: approve to the zero address\""
|
|
},
|
|
"value": "ERC20: approve to the zero address"
|
|
}
|
|
],
|
|
"expression": {
|
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|
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{
|
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"typeIdentifier": "t_bool",
|
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|
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},
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{
|
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"typeIdentifier": "t_stringliteral_24883cc5fe64ace9d0df1893501ecb93c77180f0ff69cca79affb3c316dc8029",
|
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"typeString": "literal_string \"ERC20: approve to the zero address\""
|
|
}
|
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],
|
|
"id": 9146,
|
|
"name": "require",
|
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|
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|
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-18,
|
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-18
|
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],
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|
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"typeIdentifier": "t_function_require_pure$_t_bool_$_t_string_memory_ptr_$returns$__$",
|
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"typeString": "function (bool,string memory) pure"
|
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}
|
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},
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|
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}
|
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|
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{
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|
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"typeIdentifier": "t_mapping$_t_address_$_t_mapping$_t_address_$_t_uint256_$_$",
|
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"typeString": "mapping(address => mapping(address => uint256))"
|
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}
|
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},
|
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"id": 9159,
|
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|
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}
|
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"typeDescriptions": {
|
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"typeIdentifier": "t_mapping$_t_address_$_t_uint256_$",
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|
"typeString": "mapping(address => uint256)"
|
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}
|
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},
|
|
"id": 9160,
|
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"indexExpression": {
|
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|
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"id": 9158,
|
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"name": "spender",
|
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"nodeType": "Identifier",
|
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|
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"referencedDeclaration": 9131,
|
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"src": "9628:7:84",
|
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"typeDescriptions": {
|
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"typeIdentifier": "t_address",
|
|
"typeString": "address"
|
|
}
|
|
},
|
|
"isConstant": false,
|
|
"isLValue": true,
|
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|
|
"lValueRequested": true,
|
|
"nodeType": "IndexAccess",
|
|
"src": "9609:27:84",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_uint256",
|
|
"typeString": "uint256"
|
|
}
|
|
},
|
|
"nodeType": "Assignment",
|
|
"operator": "=",
|
|
"rightHandSide": {
|
|
"argumentTypes": null,
|
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"id": 9161,
|
|
"name": "amount",
|
|
"nodeType": "Identifier",
|
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|
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"referencedDeclaration": 9133,
|
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"src": "9639:6:84",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_uint256",
|
|
"typeString": "uint256"
|
|
}
|
|
},
|
|
"src": "9609:36:84",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_uint256",
|
|
"typeString": "uint256"
|
|
}
|
|
},
|
|
"id": 9163,
|
|
"nodeType": "ExpressionStatement",
|
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"src": "9609:36:84"
|
|
},
|
|
{
|
|
"eventCall": {
|
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|
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"arguments": [
|
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{
|
|
"argumentTypes": null,
|
|
"id": 9165,
|
|
"name": "owner",
|
|
"nodeType": "Identifier",
|
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|
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"referencedDeclaration": 9129,
|
|
"src": "9669:5:84",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_address",
|
|
"typeString": "address"
|
|
}
|
|
},
|
|
{
|
|
"argumentTypes": null,
|
|
"id": 9166,
|
|
"name": "spender",
|
|
"nodeType": "Identifier",
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|
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|
|
"referencedDeclaration": 9131,
|
|
"src": "9676:7:84",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_address",
|
|
"typeString": "address"
|
|
}
|
|
},
|
|
{
|
|
"argumentTypes": null,
|
|
"id": 9167,
|
|
"name": "amount",
|
|
"nodeType": "Identifier",
|
|
"overloadedDeclarations": [],
|
|
"referencedDeclaration": 9133,
|
|
"src": "9685:6:84",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_uint256",
|
|
"typeString": "uint256"
|
|
}
|
|
}
|
|
],
|
|
"expression": {
|
|
"argumentTypes": [
|
|
{
|
|
"typeIdentifier": "t_address",
|
|
"typeString": "address"
|
|
},
|
|
{
|
|
"typeIdentifier": "t_address",
|
|
"typeString": "address"
|
|
},
|
|
{
|
|
"typeIdentifier": "t_uint256",
|
|
"typeString": "uint256"
|
|
}
|
|
],
|
|
"id": 9164,
|
|
"name": "Approval",
|
|
"nodeType": "Identifier",
|
|
"overloadedDeclarations": [],
|
|
"referencedDeclaration": 9772,
|
|
"src": "9660:8:84",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_function_event_nonpayable$_t_address_$_t_address_$_t_uint256_$returns$__$",
|
|
"typeString": "function (address,address,uint256)"
|
|
}
|
|
},
|
|
"id": 9168,
|
|
"isConstant": false,
|
|
"isLValue": false,
|
|
"isPure": false,
|
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"kind": "functionCall",
|
|
"lValueRequested": false,
|
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"names": [],
|
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"nodeType": "FunctionCall",
|
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"src": "9660:32:84",
|
|
"tryCall": false,
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_tuple$__$",
|
|
"typeString": "tuple()"
|
|
}
|
|
},
|
|
"id": 9169,
|
|
"nodeType": "EmitStatement",
|
|
"src": "9655:37:84"
|
|
}
|
|
]
|
|
},
|
|
"documentation": {
|
|
"id": 9127,
|
|
"nodeType": "StructuredDocumentation",
|
|
"src": "8940:414:84",
|
|
"text": " @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.\n This is internal function is equivalent to `approve`, and can be used to\n e.g. set automatic allowances for certain subsystems, etc.\n Emits an {Approval} event.\n Requirements:\n - `owner` cannot be the zero address.\n - `spender` cannot be the zero address."
|
|
},
|
|
"id": 9171,
|
|
"implemented": true,
|
|
"kind": "function",
|
|
"modifiers": [],
|
|
"name": "_approve",
|
|
"nodeType": "FunctionDefinition",
|
|
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|
|
"parameters": {
|
|
"id": 9134,
|
|
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|
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"parameters": [
|
|
{
|
|
"constant": false,
|
|
"id": 9129,
|
|
"mutability": "mutable",
|
|
"name": "owner",
|
|
"nodeType": "VariableDeclaration",
|
|
"overrides": null,
|
|
"scope": 9171,
|
|
"src": "9377:13:84",
|
|
"stateVariable": false,
|
|
"storageLocation": "default",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_address",
|
|
"typeString": "address"
|
|
},
|
|
"typeName": {
|
|
"id": 9128,
|
|
"name": "address",
|
|
"nodeType": "ElementaryTypeName",
|
|
"src": "9377:7:84",
|
|
"stateMutability": "nonpayable",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_address",
|
|
"typeString": "address"
|
|
}
|
|
},
|
|
"value": null,
|
|
"visibility": "internal"
|
|
},
|
|
{
|
|
"constant": false,
|
|
"id": 9131,
|
|
"mutability": "mutable",
|
|
"name": "spender",
|
|
"nodeType": "VariableDeclaration",
|
|
"overrides": null,
|
|
"scope": 9171,
|
|
"src": "9392:15:84",
|
|
"stateVariable": false,
|
|
"storageLocation": "default",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_address",
|
|
"typeString": "address"
|
|
},
|
|
"typeName": {
|
|
"id": 9130,
|
|
"name": "address",
|
|
"nodeType": "ElementaryTypeName",
|
|
"src": "9392:7:84",
|
|
"stateMutability": "nonpayable",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_address",
|
|
"typeString": "address"
|
|
}
|
|
},
|
|
"value": null,
|
|
"visibility": "internal"
|
|
},
|
|
{
|
|
"constant": false,
|
|
"id": 9133,
|
|
"mutability": "mutable",
|
|
"name": "amount",
|
|
"nodeType": "VariableDeclaration",
|
|
"overrides": null,
|
|
"scope": 9171,
|
|
"src": "9409:14:84",
|
|
"stateVariable": false,
|
|
"storageLocation": "default",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_uint256",
|
|
"typeString": "uint256"
|
|
},
|
|
"typeName": {
|
|
"id": 9132,
|
|
"name": "uint256",
|
|
"nodeType": "ElementaryTypeName",
|
|
"src": "9409:7:84",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_uint256",
|
|
"typeString": "uint256"
|
|
}
|
|
},
|
|
"value": null,
|
|
"visibility": "internal"
|
|
}
|
|
],
|
|
"src": "9376:48:84"
|
|
},
|
|
"returnParameters": {
|
|
"id": 9135,
|
|
"nodeType": "ParameterList",
|
|
"parameters": [],
|
|
"src": "9442:0:84"
|
|
},
|
|
"scope": 9194,
|
|
"src": "9359:340:84",
|
|
"stateMutability": "nonpayable",
|
|
"virtual": true,
|
|
"visibility": "internal"
|
|
},
|
|
{
|
|
"body": {
|
|
"id": 9181,
|
|
"nodeType": "Block",
|
|
"src": "10072:38:84",
|
|
"statements": [
|
|
{
|
|
"expression": {
|
|
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|
|
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|
|
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|
|
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|
|
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|
|
"lValueRequested": false,
|
|
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|
|
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|
|
"id": 9177,
|
|
"name": "_decimals",
|
|
"nodeType": "Identifier",
|
|
"overloadedDeclarations": [],
|
|
"referencedDeclaration": 8722,
|
|
"src": "10082:9:84",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_uint8",
|
|
"typeString": "uint8"
|
|
}
|
|
},
|
|
"nodeType": "Assignment",
|
|
"operator": "=",
|
|
"rightHandSide": {
|
|
"argumentTypes": null,
|
|
"id": 9178,
|
|
"name": "decimals_",
|
|
"nodeType": "Identifier",
|
|
"overloadedDeclarations": [],
|
|
"referencedDeclaration": 9174,
|
|
"src": "10094:9:84",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_uint8",
|
|
"typeString": "uint8"
|
|
}
|
|
},
|
|
"src": "10082:21:84",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_uint8",
|
|
"typeString": "uint8"
|
|
}
|
|
},
|
|
"id": 9180,
|
|
"nodeType": "ExpressionStatement",
|
|
"src": "10082:21:84"
|
|
}
|
|
]
|
|
},
|
|
"documentation": {
|
|
"id": 9172,
|
|
"nodeType": "StructuredDocumentation",
|
|
"src": "9705:312:84",
|
|
"text": " @dev Sets {decimals} to a value other than the default one of 18.\n WARNING: This function should only be called from the constructor. Most\n applications that interact with token contracts will not expect\n {decimals} to ever change, and may work incorrectly if it does."
|
|
},
|
|
"id": 9182,
|
|
"implemented": true,
|
|
"kind": "function",
|
|
"modifiers": [],
|
|
"name": "_setupDecimals",
|
|
"nodeType": "FunctionDefinition",
|
|
"overrides": null,
|
|
"parameters": {
|
|
"id": 9175,
|
|
"nodeType": "ParameterList",
|
|
"parameters": [
|
|
{
|
|
"constant": false,
|
|
"id": 9174,
|
|
"mutability": "mutable",
|
|
"name": "decimals_",
|
|
"nodeType": "VariableDeclaration",
|
|
"overrides": null,
|
|
"scope": 9182,
|
|
"src": "10046:15:84",
|
|
"stateVariable": false,
|
|
"storageLocation": "default",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_uint8",
|
|
"typeString": "uint8"
|
|
},
|
|
"typeName": {
|
|
"id": 9173,
|
|
"name": "uint8",
|
|
"nodeType": "ElementaryTypeName",
|
|
"src": "10046:5:84",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_uint8",
|
|
"typeString": "uint8"
|
|
}
|
|
},
|
|
"value": null,
|
|
"visibility": "internal"
|
|
}
|
|
],
|
|
"src": "10045:17:84"
|
|
},
|
|
"returnParameters": {
|
|
"id": 9176,
|
|
"nodeType": "ParameterList",
|
|
"parameters": [],
|
|
"src": "10072:0:84"
|
|
},
|
|
"scope": 9194,
|
|
"src": "10022:88:84",
|
|
"stateMutability": "nonpayable",
|
|
"virtual": false,
|
|
"visibility": "internal"
|
|
},
|
|
{
|
|
"body": {
|
|
"id": 9192,
|
|
"nodeType": "Block",
|
|
"src": "10786:3:84",
|
|
"statements": []
|
|
},
|
|
"documentation": {
|
|
"id": 9183,
|
|
"nodeType": "StructuredDocumentation",
|
|
"src": "10116:576:84",
|
|
"text": " @dev Hook that is called before any transfer of tokens. This includes\n minting and burning.\n Calling conditions:\n - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens\n will be to transferred to `to`.\n - when `from` is zero, `amount` tokens will be minted for `to`.\n - when `to` is zero, `amount` of ``from``'s tokens will be burned.\n - `from` and `to` are never both zero.\n To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks]."
|
|
},
|
|
"id": 9193,
|
|
"implemented": true,
|
|
"kind": "function",
|
|
"modifiers": [],
|
|
"name": "_beforeTokenTransfer",
|
|
"nodeType": "FunctionDefinition",
|
|
"overrides": null,
|
|
"parameters": {
|
|
"id": 9190,
|
|
"nodeType": "ParameterList",
|
|
"parameters": [
|
|
{
|
|
"constant": false,
|
|
"id": 9185,
|
|
"mutability": "mutable",
|
|
"name": "from",
|
|
"nodeType": "VariableDeclaration",
|
|
"overrides": null,
|
|
"scope": 9193,
|
|
"src": "10727:12:84",
|
|
"stateVariable": false,
|
|
"storageLocation": "default",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_address",
|
|
"typeString": "address"
|
|
},
|
|
"typeName": {
|
|
"id": 9184,
|
|
"name": "address",
|
|
"nodeType": "ElementaryTypeName",
|
|
"src": "10727:7:84",
|
|
"stateMutability": "nonpayable",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_address",
|
|
"typeString": "address"
|
|
}
|
|
},
|
|
"value": null,
|
|
"visibility": "internal"
|
|
},
|
|
{
|
|
"constant": false,
|
|
"id": 9187,
|
|
"mutability": "mutable",
|
|
"name": "to",
|
|
"nodeType": "VariableDeclaration",
|
|
"overrides": null,
|
|
"scope": 9193,
|
|
"src": "10741:10:84",
|
|
"stateVariable": false,
|
|
"storageLocation": "default",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_address",
|
|
"typeString": "address"
|
|
},
|
|
"typeName": {
|
|
"id": 9186,
|
|
"name": "address",
|
|
"nodeType": "ElementaryTypeName",
|
|
"src": "10741:7:84",
|
|
"stateMutability": "nonpayable",
|
|
"typeDescriptions": {
|
|
"typeIdentifier": "t_address",
|
|
"typeString": "address"
|
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