From 3adf6a5fb4a8e2202aab9e104d6c8776c77ca0e0 Mon Sep 17 00:00:00 2001 From: Trinity Date: Fri, 27 Dec 2024 15:18:42 +0700 Subject: [PATCH] Precompile folder --- x/asset/precompile/IERC20.sol | 78 +++++ x/asset/precompile/IERC20Metadata.sol | 28 ++ .../precompile/IERC20MetadataAllowance.sol | 35 +++ x/asset/precompile/abi.json | 272 ++++++++++++++++++ 4 files changed, 413 insertions(+) create mode 100644 x/asset/precompile/IERC20.sol create mode 100644 x/asset/precompile/IERC20Metadata.sol create mode 100644 x/asset/precompile/IERC20MetadataAllowance.sol create mode 100644 x/asset/precompile/abi.json diff --git a/x/asset/precompile/IERC20.sol b/x/asset/precompile/IERC20.sol new file mode 100644 index 00000000..66c4e4d8 --- /dev/null +++ b/x/asset/precompile/IERC20.sol @@ -0,0 +1,78 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol) + +pragma solidity ^0.8.0; + +/** + * @dev Interface of the ERC20 standard as defined in the EIP. + */ +interface IERC20 { + /** + * @dev Emitted when `value` tokens are moved from one account (`from`) to + * another (`to`). + * + * Note that `value` may be zero. + */ + event Transfer(address indexed from, address indexed to, uint256 value); + + /** + * @dev Emitted when the allowance of a `spender` for an `owner` is set by + * a call to {approve}. `value` is the new allowance. + */ + event Approval(address indexed owner, address indexed spender, uint256 value); + + /** + * @dev Returns the amount of tokens in existence. + */ + function totalSupply() external view returns (uint256); + + /** + * @dev Returns the amount of tokens owned by `account`. + */ + function balanceOf(address account) external view returns (uint256); + + /** + * @dev Moves `amount` tokens from the caller's account to `to`. + * + * Returns a boolean value indicating whether the operation succeeded. + * + * Emits a {Transfer} event. + */ + function transfer(address to, uint256 amount) external returns (bool); + + /** + * @dev Returns the remaining number of tokens that `spender` will be + * allowed to spend on behalf of `owner` through {transferFrom}. This is + * zero by default. + * + * This value changes when {approve} or {transferFrom} are called. + */ + function allowance(address owner, address spender) external view returns (uint256); + + /** + * @dev Sets `amount` as the allowance of `spender` over the caller's tokens. + * + * Returns a boolean value indicating whether the operation succeeded. + * + * IMPORTANT: Beware that changing an allowance with this method brings the risk + * that someone may use both the old and the new allowance by unfortunate + * transaction ordering. One possible solution to mitigate this race + * condition is to first reduce the spender's allowance to 0 and set the + * desired value afterwards: + * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729 + * + * Emits an {Approval} event. + */ + function approve(address spender, uint256 amount) external returns (bool); + + /** + * @dev Moves `amount` tokens from `from` to `to` using the + * allowance mechanism. `amount` is then deducted from the caller's + * allowance. + * + * Returns a boolean value indicating whether the operation succeeded. + * + * Emits a {Transfer} event. + */ + function transferFrom(address from, address to, uint256 amount) external returns (bool); +} diff --git a/x/asset/precompile/IERC20Metadata.sol b/x/asset/precompile/IERC20Metadata.sol new file mode 100644 index 00000000..982bc39e --- /dev/null +++ b/x/asset/precompile/IERC20Metadata.sol @@ -0,0 +1,28 @@ +// SPDX-License-Identifier: MIT +// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol) + +pragma solidity ^0.8.0; + +import "./IERC20.sol"; + +/** + * @dev Interface for the optional metadata functions from the ERC20 standard. + * + * _Available since v4.1._ + */ +interface IERC20Metadata is IERC20 { + /** + * @dev Returns the name of the token. + */ + function name() external view returns (string memory); + + /** + * @dev Returns the symbol of the token. + */ + function symbol() external view returns (string memory); + + /** + * @dev Returns the decimals places of the token. + */ + function decimals() external view returns (uint8); +} diff --git a/x/asset/precompile/IERC20MetadataAllowance.sol b/x/asset/precompile/IERC20MetadataAllowance.sol new file mode 100644 index 00000000..1fe29eff --- /dev/null +++ b/x/asset/precompile/IERC20MetadataAllowance.sol @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: LGPL-3.0-only +pragma solidity >=0.8.18; + +import "./IERC20Metadata.sol"; + +/** + * @author Evmos Team + * @title ERC20 Metadata Allowance Interface + * @dev Interface for the optional metadata and allowance functions from the ERC20 standard. + */ +interface IERC20MetadataAllowance is IERC20Metadata { + /** @dev Atomically increases the allowance granted to spender by the caller. + * This is an alternative to approve that can be used as a mitigation for problems described in + * IERC20.approve. + * @param spender The address which will spend the funds. + * @param addedValue The amount of tokens added to the spender allowance. + * @return approved Boolean value to indicate if the approval was successful. + */ + function increaseAllowance( + address spender, + uint256 addedValue + ) external returns (bool approved); + + /** @dev Atomically decreases the allowance granted to spender by the caller. + * This is an alternative to approve that can be used as a mitigation for problems described in + * IERC20.approve. + * @param spender The address which will spend the funds. + * @param subtractedValue The amount to be subtracted from the spender allowance. + * @return approved Boolean value to indicate if the approval was successful. + */ + function decreaseAllowance( + address spender, + uint256 subtractedValue + ) external returns (bool approved); +} diff --git a/x/asset/precompile/abi.json b/x/asset/precompile/abi.json new file mode 100644 index 00000000..453e65c9 --- /dev/null +++ b/x/asset/precompile/abi.json @@ -0,0 +1,272 @@ +[ + { + "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": "approved", + "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": "approved", + "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