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Port some Moonbeam precompiles (#21)
* Port Moonbeam precompiles # Conflicts: # Cargo.toml * remove hardcoded addresses * remove custom dev comment with addresses --------- Co-authored-by: girazoki <gorka.irazoki@gmail.com>
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,59 @@ | ||
| [package] | ||
| name = "pallet-evm-precompile-balances-erc20" | ||
| authors = { workspace = true } | ||
| description = "A Precompile to expose a Balances pallet through an ERC20-compliant interface." | ||
| edition = "2021" | ||
| version = "0.1.0" | ||
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| [dependencies] | ||
| log = { workspace = true } | ||
| num_enum = { workspace = true } | ||
| paste = { workspace = true } | ||
| slices = { workspace = true } | ||
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| # Moonbeam | ||
| precompile-utils = { workspace = true } | ||
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| # Substrate | ||
| frame-support = { workspace = true } | ||
| frame-system = { workspace = true } | ||
| pallet-balances = { workspace = true } | ||
| pallet-timestamp = { workspace = true } | ||
| parity-scale-codec = { workspace = true, features = [ "max-encoded-len" ] } | ||
| sp-core = { workspace = true } | ||
| sp-io = { workspace = true } | ||
| sp-runtime = { workspace = true } | ||
| sp-std = { workspace = true } | ||
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| # Frontier | ||
| fp-evm = { workspace = true } | ||
| pallet-evm = { workspace = true, features = [ "forbid-evm-reentrancy" ] } | ||
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| [dev-dependencies] | ||
| derive_more = { workspace = true } | ||
| hex-literal = { workspace = true } | ||
| libsecp256k1 = { workspace = true } | ||
| serde = { workspace = true } | ||
| sha3 = { workspace = true } | ||
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| # Moonbeam | ||
| precompile-utils = { workspace = true, features = [ "std", "testing" ] } | ||
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| pallet-timestamp = { workspace = true, features = [ "std" ] } | ||
| scale-info = { workspace = true, features = [ "derive" ] } | ||
| sp-runtime = { workspace = true, features = [ "std" ] } | ||
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| [features] | ||
| default = [ "std" ] | ||
| std = [ | ||
| "fp-evm/std", | ||
| "frame-support/std", | ||
| "frame-system/std", | ||
| "pallet-balances/std", | ||
| "pallet-evm/std", | ||
| "parity-scale-codec/std", | ||
| "precompile-utils/std", | ||
| "sp-core/std", | ||
| "sp-io/std", | ||
| "sp-std/std", | ||
| ] |
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| @@ -0,0 +1,116 @@ | ||
| // SPDX-License-Identifier: GPL-3.0-only | ||
| pragma solidity >=0.8.3; | ||
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| /// @title ERC20 interface | ||
| /// @dev see https://github.com/ethereum/EIPs/issues/20 | ||
| /// @dev copied from https://github.com/OpenZeppelin/openzeppelin-contracts | ||
| interface IERC20 { | ||
| /// @dev Returns the name of the token. | ||
| /// @custom:selector 06fdde03 | ||
| function name() external view returns (string memory); | ||
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| /// @dev Returns the symbol of the token. | ||
| /// @custom:selector 95d89b41 | ||
| function symbol() external view returns (string memory); | ||
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| /// @dev Returns the decimals places of the token. | ||
| /// @custom:selector 313ce567 | ||
| function decimals() external view returns (uint8); | ||
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| /// @dev Total number of tokens in existence | ||
| /// @custom:selector 18160ddd | ||
| function totalSupply() external view returns (uint256); | ||
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| /// @dev Gets the balance of the specified address. | ||
| /// @custom:selector 70a08231 | ||
| /// @param owner The address to query the balance of. | ||
| /// @return An uint256 representing the amount owned by the passed address. | ||
| function balanceOf(address owner) external view returns (uint256); | ||
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| /// @dev Function to check the amount of tokens that an owner allowed to a spender. | ||
| /// @custom:selector dd62ed3e | ||
| /// @param owner address The address which owns the funds. | ||
| /// @param spender address The address which will spend the funds. | ||
| /// @return A uint256 specifying the amount of tokens still available for the spender. | ||
| function allowance(address owner, address spender) | ||
| external | ||
| view | ||
| returns (uint256); | ||
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| /// @dev Transfer token for a specified address | ||
| /// @custom:selector a9059cbb | ||
| /// @param to The address to transfer to. | ||
| /// @param value The amount to be transferred. | ||
| /// @return true if the transfer was succesful, revert otherwise. | ||
| function transfer(address to, uint256 value) external returns (bool); | ||
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| /// @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender. | ||
| /// 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 | ||
| /// @custom:selector 095ea7b3 | ||
| /// @param spender The address which will spend the funds. | ||
| /// @param value The amount of tokens to be spent. | ||
| /// @return true, this cannot fail | ||
| function approve(address spender, uint256 value) external returns (bool); | ||
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| /// @dev Transfer tokens from one address to another | ||
| /// @custom:selector 23b872dd | ||
| /// @param from address The address which you want to send tokens from | ||
| /// @param to address The address which you want to transfer to | ||
| /// @param value uint256 the amount of tokens to be transferred | ||
| /// @return true if the transfer was succesful, revert otherwise. | ||
| function transferFrom( | ||
| address from, | ||
| address to, | ||
| uint256 value | ||
| ) external returns (bool); | ||
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| /// @dev Event emited when a transfer has been performed. | ||
| /// @custom:selector ddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef | ||
| /// @param from address The address sending the tokens | ||
| /// @param to address The address receiving the tokens. | ||
| /// @param value uint256 The amount of tokens transfered. | ||
| event Transfer(address indexed from, address indexed to, uint256 value); | ||
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| /// @dev Event emited when an approval has been registered. | ||
| /// @custom:selector 8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925 | ||
| /// @param owner address Owner of the tokens. | ||
| /// @param spender address Allowed spender. | ||
| /// @param value uint256 Amount of tokens approved. | ||
| event Approval( | ||
| address indexed owner, | ||
| address indexed spender, | ||
| uint256 value | ||
| ); | ||
| } | ||
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| /// @title Native currency wrapper interface. | ||
| /// @dev Allow compatibility with dApps expecting this precompile to be | ||
| /// a WETH-like contract. | ||
| /// Moonbase address : 0x0000000000000000000000000000000000000802 | ||
| interface WrappedNativeCurrency { | ||
| /// @dev Provide compatibility for contracts that expect wETH design. | ||
| /// Returns funds to sender as this precompile tokens and the native tokens are the same. | ||
| /// @custom:selector d0e30db0 | ||
| function deposit() external payable; | ||
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| /// @dev Provide compatibility for contracts that expect wETH design. | ||
| /// Does nothing. | ||
| /// @custom:selector 2e1a7d4d | ||
| /// @param value uint256 The amount to withdraw/unwrap. | ||
| function withdraw(uint256 value) external; | ||
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| /// @dev Event emited when deposit() has been called. | ||
| /// @custom:selector e1fffcc4923d04b559f4d29a8bfc6cda04eb5b0d3c460751c2402c5c5cc9109c | ||
| /// @param owner address Owner of the tokens | ||
| /// @param value uint256 The amount of tokens "wrapped". | ||
| event Deposit(address indexed owner, uint256 value); | ||
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| /// @dev Event emited when withdraw(uint256) has been called. | ||
| /// @custom:selector 7fcf532c15f0a6db0bd6d0e038bea71d30d808c7d98cb3bf7268a95bf5081b65 | ||
| /// @param owner address Owner of the tokens | ||
| /// @param value uint256 The amount of tokens "unwrapped". | ||
| event Withdrawal(address indexed owner, uint256 value); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| // SPDX-License-Identifier: GPL-3.0-only | ||
| pragma solidity >=0.8.3; | ||
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| /// @author The Moonbeam Team | ||
| /// @title Extension of the ERC20 interface that allows users to | ||
| /// @dev Sign permit messages to interact with contracts without needing to | ||
| /// make a first approve transaction. | ||
| interface Permit { | ||
| /// @dev Consumes an approval permit. | ||
| /// Anyone can call this function for a permit. | ||
| /// @custom:selector d505accf | ||
| /// @param owner Owner of the tokens issuing the permit | ||
| /// @param spender Address whose allowance will be increased. | ||
| /// @param value Allowed value. | ||
| /// @param deadline Timestamp after which the permit will no longer be valid. | ||
| /// @param v V component of the signature. | ||
| /// @param r R component of the signature. | ||
| /// @param s S component of the signature. | ||
| function permit( | ||
| address owner, | ||
| address spender, | ||
| uint256 value, | ||
| uint256 deadline, | ||
| uint8 v, | ||
| bytes32 r, | ||
| bytes32 s | ||
| ) external; | ||
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| /// @dev Returns the current nonce for given owner. | ||
| /// A permit must have this nonce to be consumed, which will | ||
| /// increase the nonce by one. | ||
| /// @custom:selector 7ecebe00 | ||
| function nonces(address owner) external view returns (uint256); | ||
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| /// @dev Returns the EIP712 domain separator. It is used to avoid replay | ||
| /// attacks accross assets or other similar EIP712 message structures. | ||
| /// @custom:selector 3644e515 | ||
| function DOMAIN_SEPARATOR() external view returns (bytes32); | ||
| } |
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