Arrow Token Implementation
This is an upgradeable contract that conforms to the ERC-20 standard
Upgrades can be made directly on this contract as versioning will be handled by git. However, one needs to keep any potential storage collisions in mind when introducing new variables/functions
Methods
allowance
function allowance(address owner, address spender) external view returns (uint256)
See {IERC20-allowance}.
Parameters
| Name | Type | Description |
|---|
| owner | address | undefined |
| spender | address | undefined |
Returns
| Name | Type | Description |
|---|
| _0 | uint256 | undefined |
approve
function approve(address spender, uint256 amount) external nonpayable returns (bool)
See {IERC20-approve}. NOTE: If amount is the maximum uint256, the allowance is not updated on transferFrom. This is semantically equivalent to an infinite approval. Requirements: - spender cannot be the zero address.
Parameters
| Name | Type | Description |
|---|
| spender | address | undefined |
| amount | uint256 | undefined |
Returns
| Name | Type | Description |
|---|
| _0 | bool | undefined |
balanceOf
function balanceOf(address account) external view returns (uint256)
See {IERC20-balanceOf}.
Parameters
| Name | Type | Description |
|---|
| account | address | undefined |
Returns
| Name | Type | Description |
|---|
| _0 | uint256 | undefined |
decimals
function decimals() external view returns (uint8)
Returns the number of decimals used to get its user representation. For example, if decimals equals 2, a balance of 505 tokens should be displayed to a user as 5.05 (505 / 10 ** 2). Tokens usually opt for a value of 18, imitating the relationship between Ether and Wei. This is the value {ERC20} uses, unless this function is overridden; NOTE: This information is only used for display purposes: it in no way affects any of the arithmetic of the contract, including {IERC20-balanceOf} and {IERC20-transfer}.
Returns
| Name | Type | Description |
|---|
| _0 | uint8 | undefined |
decreaseAllowance
function decreaseAllowance(address spender, uint256 subtractedValue) external nonpayable returns (bool)
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}. Emits an {Approval} event indicating the updated allowance. Requirements: - spender cannot be the zero address. - spender must have allowance for the caller of at least subtractedValue.
Parameters
| Name | Type | Description |
|---|
| spender | address | undefined |
| subtractedValue | uint256 | undefined |
Returns
| Name | Type | Description |
|---|
| _0 | bool | undefined |
increaseAllowance
function increaseAllowance(address spender, uint256 addedValue) external nonpayable returns (bool)
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}. Emits an {Approval} event indicating the updated allowance. Requirements: - spender cannot be the zero address.
Parameters
| Name | Type | Description |
|---|
| spender | address | undefined |
| addedValue | uint256 | undefined |
Returns
| Name | Type | Description |
|---|
| _0 | bool | undefined |
initialize
function initialize(uint256 _initialSupply, string _name, string _symbol) external nonpayable
Mint an _initialSupply amount of tokens upon contract creation
If we were to upgrade the initializer by introducing new variables, we need to create a normal function like initializeV2 (https://forum.openzeppelin.com/t/uups-proxies-tutorial-solidity-javascript/7786/53), and make sure to include all existing variables from the current version of the contract to avoid storage collision
Parameters
| Name | Type | Description |
|---|
| _initialSupply | uint256 | undefined |
| _name | string | undefined |
| _symbol | string | undefined |
mint
function mint(address _to, uint256 _amount) external nonpayable
Mint and issue new tokens to a specified address
Parameters
| Name | Type | Description |
|---|
| _to | address | the address to issue new tokens to |
| _amount | uint256 | the amount of tokens to be mint and transfered to _to |
name
function name() external view returns (string)
Returns the name of the token.
Returns
| Name | Type | Description |
|---|
| _0 | string | undefined |
owner
function owner() external view returns (address)
Returns the address of the current owner.
Returns
| Name | Type | Description |
|---|
| _0 | address | undefined |
proxiableUUID
function proxiableUUID() external view returns (bytes32)
Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the implementation. It is used to validate that the this implementation remains valid after an upgrade. IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this function revert if invoked through a proxy. This is guaranteed by the notDelegated modifier.
Returns
| Name | Type | Description |
|---|
| _0 | bytes32 | undefined |
renounceOwnership
function renounceOwnership() external nonpayable
Leaves the contract without owner. It will not be possible to call onlyOwner functions anymore. Can only be called by the current owner. NOTE: Renouncing ownership will leave the contract without an owner, thereby removing any functionality that is only available to the owner.
symbol
function symbol() external view returns (string)
Returns the symbol of the token, usually a shorter version of the name.
Returns
| Name | Type | Description |
|---|
| _0 | string | undefined |
totalSupply
function totalSupply() external view returns (uint256)
See {IERC20-totalSupply}.
Returns
| Name | Type | Description |
|---|
| _0 | uint256 | undefined |
transfer
function transfer(address to, uint256 amount) external nonpayable returns (bool)
See {IERC20-transfer}. Requirements: - to cannot be the zero address. - the caller must have a balance of at least amount.
Parameters
| Name | Type | Description |
|---|
| to | address | undefined |
| amount | uint256 | undefined |
Returns
| Name | Type | Description |
|---|
| _0 | bool | undefined |
transferFrom
function transferFrom(address from, address to, uint256 amount) external nonpayable returns (bool)
See {IERC20-transferFrom}. Emits an {Approval} event indicating the updated allowance. This is not required by the EIP. See the note at the beginning of {ERC20}. NOTE: Does not update the allowance if the current allowance is the maximum uint256. Requirements: - from and to cannot be the zero address. - from must have a balance of at least amount. - the caller must have allowance for from's tokens of at least amount.
Parameters
| Name | Type | Description |
|---|
| from | address | undefined |
| to | address | undefined |
| amount | uint256 | undefined |
Returns
| Name | Type | Description |
|---|
| _0 | bool | undefined |
transferOwnership
function transferOwnership(address newOwner) external nonpayable
Transfers ownership of the contract to a new account (newOwner). Can only be called by the current owner.
Parameters
| Name | Type | Description |
|---|
| newOwner | address | undefined |
upgradeTo
function upgradeTo(address newImplementation) external nonpayable
Upgrade the implementation of the proxy to newImplementation. Calls {_authorizeUpgrade}. Emits an {Upgraded} event.
Parameters
| Name | Type | Description |
|---|
| newImplementation | address | undefined |
upgradeToAndCall
function upgradeToAndCall(address newImplementation, bytes data) external payable
Upgrade the implementation of the proxy to newImplementation, and subsequently execute the function call encoded in data. Calls {_authorizeUpgrade}. Emits an {Upgraded} event.
Parameters
| Name | Type | Description |
|---|
| newImplementation | address | undefined |
| data | bytes | undefined |
Events
AdminChanged
event AdminChanged(address previousAdmin, address newAdmin)
Parameters
| Name | Type | Description |
|---|
| previousAdmin | address | undefined |
| newAdmin | address | undefined |
Approval
event Approval(address indexed owner, address indexed spender, uint256 value)
Parameters
| Name | Type | Description |
|---|
owner indexed | address | undefined |
spender indexed | address | undefined |
| value | uint256 | undefined |
BeaconUpgraded
event BeaconUpgraded(address indexed beacon)
Parameters
| Name | Type | Description |
|---|
beacon indexed | address | undefined |
Initialized
event Initialized(uint8 version)
Parameters
| Name | Type | Description |
|---|
| version | uint8 | undefined |
OwnershipTransferred
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner)
Parameters
| Name | Type | Description |
|---|
previousOwner indexed | address | undefined |
newOwner indexed | address | undefined |
Transfer
event Transfer(address indexed from, address indexed to, uint256 value)
Parameters
| Name | Type | Description |
|---|
from indexed | address | undefined |
to indexed | address | undefined |
| value | uint256 | undefined |
Upgraded
event Upgraded(address indexed implementation)
Parameters
| Name | Type | Description |
|---|
implementation indexed | address | undefined |