Minimal ERC20 interface for Algebra
Contains a subset of the full ERC20 interface that is used in Algebra
event Transfer(address from, address to, uint256 value)
Event emitted when tokens are transferred from one address to another, either via `#transfer` or `#transferFrom`.
| Name | Type | Description |
|---|---|---|
event Approval(address owner, address spender, uint256 value)
Event emitted when the approval amount for the spender of a given owner's tokens changes.
| Name | Type | Description |
|---|---|---|
function balanceOf(address account) external view returns (uint256) view external
Returns the balance of a token
Returns:
function transfer(address recipient, uint256 amount) external returns (bool) external
Transfers the amount of token from the `msg.sender` to the recipient
Returns:
function allowance(address owner, address spender) external view returns (uint256) view external
Returns the current allowance given to a spender by an owner
Returns:
function approve(address spender, uint256 amount) external returns (bool) external
Sets the allowance of a spender from the `msg.sender` to the value `amount`
Returns:
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool) external
Transfers `amount` tokens from `sender` to `recipient` up to the allowance given to the `msg.sender`
Returns:
function mintAndFreeze(address _to, uint256 _amount, uint64 _until) external returns (bool) external
Developer note: Mint the specified amount of token to the specified address and freeze it until the specified date. Be careful, gas usage is not deterministic, and depends on how many freezes _to address already has.
Returns:
function releaseOnce() external external
Developer note: release first available freezing tokens.
function getFreezing(address _addr, uint256 _index) external view returns (uint64 _release, uint256 _balance) view external
Developer note: gets freezing end date and freezing balance for the freezing portion specified by index.
Returns:
| Name | Type | Description |
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| Name | Type | Description |
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from
address
The account from which the tokens were sent, i.e. the balance decreased
to
address
The account to which the tokens were sent, i.e. the balance increased
value
uint256
The amount of tokens that were transferred
owner
address
The account that approved spending of its tokens
spender
address
The account for which the spending allowance was modified
value
uint256
The new allowance from the owner to the spender
account
address
The account for which to look up the number of tokens it has, i.e. its balance
[0]
uint256
The number of tokens held by the account
recipient
address
The account that will receive the amount transferred
amount
uint256
The number of tokens to send from the sender to the recipient
[0]
bool
Returns true for a successful transfer, false for an unsuccessful transfer
owner
address
The account of the token owner
spender
address
The account of the token spender
[0]
uint256
The current allowance granted by `owner` to `spender`
spender
address
The account which will be allowed to spend a given amount of the owners tokens
amount
uint256
The amount of tokens allowed to be used by `spender`
[0]
bool
Returns true for a successful approval, false for unsuccessful
sender
address
The account from which the transfer will be initiated
recipient
address
The recipient of the transfer
amount
uint256
The amount of the transfer
[0]
bool
Returns true for a successful transfer, false for unsuccessful
_to
address
Address to which token will be freeze.
_amount
uint256
Amount of token to mint and freeze.
_until
uint64
Release date, must be in future.
[0]
bool
A boolean that indicates if the operation was successful.
_addr
address
Address of freeze tokens owner.
_index
uint256
Freezing portion index. It ordered by release date descending.
_release
uint64
_balance
uint256
