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62 lines
3.1 KiB
Solidity
62 lines
3.1 KiB
Solidity
// SPDX-License-Identifier: GPL-2.0-or-later
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pragma solidity >=0.5.0;
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/// @title Minimal ERC20 interface for Uniswap
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/// @notice Contains a subset of the full ERC20 interface that is used in Uniswap V3
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interface IERC20Minimal {
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/// @notice Returns the balance of a token
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/// @param account The account for which to look up the number of tokens it has, i.e. its balance
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/// @return The number of tokens held by the account
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function balanceOf(address account) external view returns (uint256);
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/// @notice Transfers the amount of token from the `msg.sender` to the recipient
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/// @param recipient The account that will receive the amount transferred
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/// @param amount The number of tokens to send from the sender to the recipient
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/// @return Returns true for a successful transfer, false for an unsuccessful transfer
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function transfer(address recipient, uint256 amount)
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external
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returns (bool);
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/// @notice Returns the current allowance given to a spender by an owner
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/// @param owner The account of the token owner
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/// @param spender The account of the token spender
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/// @return The current allowance granted by `owner` to `spender`
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function allowance(address owner, address spender)
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external
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view
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returns (uint256);
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/// @notice Sets the allowance of a spender from the `msg.sender` to the value `amount`
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/// @param spender The account which will be allowed to spend a given amount of the owners tokens
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/// @param amount The amount of tokens allowed to be used by `spender`
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/// @return Returns true for a successful approval, false for unsuccessful
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function approve(address spender, uint256 amount) external returns (bool);
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/// @notice Transfers `amount` tokens from `sender` to `recipient` up to the allowance given to the `msg.sender`
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/// @param sender The account from which the transfer will be initiated
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/// @param recipient The recipient of the transfer
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/// @param amount The amount of the transfer
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/// @return Returns true for a successful transfer, false for unsuccessful
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function transferFrom(
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address sender,
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address recipient,
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uint256 amount
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) external returns (bool);
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/// @notice Event emitted when tokens are transferred from one address to another, either via `#transfer` or `#transferFrom`.
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/// @param from The account from which the tokens were sent, i.e. the balance decreased
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/// @param to The account to which the tokens were sent, i.e. the balance increased
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/// @param value The amount of tokens that were transferred
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event Transfer(address indexed from, address indexed to, uint256 value);
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/// @notice Event emitted when the approval amount for the spender of a given owner's tokens changes.
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/// @param owner The account that approved spending of its tokens
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/// @param spender The account for which the spending allowance was modified
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/// @param value The new allowance from the owner to the spender
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event Approval(
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address indexed owner,
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address indexed spender,
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uint256 value
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);
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}
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