ExpandedIERC20
ExpandedIERC20#
Functions#
burn(uint256 value) (external)Burns a specific amount of the caller's tokens.
Only burns the caller's tokens, so it is safe to leave this method permissionless.
burnFrom(address recipient, uint256 value) โ bool (external)Burns value tokens owned by recipient.
Parameters:#
- recipient: address to burn tokens from.
- value: amount of tokens to burn.
mint(address to, uint256 value) โ bool (external)Mints tokens and adds them to the balance of the to address.
This method should be permissioned to only allow designated parties to mint tokens.
addMinter(address account) (external)addBurner(address account) (external)resetOwner(address account) (external)totalSupply() โ uint256 (external)Returns the amount of tokens in existence.
balanceOf(address account) โ uint256 (external)Returns the amount of tokens owned by account.
transfer(address recipient, uint256 amount) โ bool (external)Moves amount tokens from the caller's account to recipient.
Returns a boolean value indicating whether the operation succeeded.
Emits a {Transfer} event.
allowance(address owner, address spender) โ uint256 (external)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.
approve(address spender, uint256 amount) โ bool (external)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.
transferFrom(address sender, address recipient, uint256 amount) โ bool (external)Moves amount tokens from sender to recipient 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.
Events#
Transfer(address from, address to, uint256 value)Emitted when value tokens are moved from one account (from) to
another (to).
Note that value may be zero.
Approval(address owner, address spender, uint256 value)Emitted when the allowance of a spender for an owner is set by
a call to {approve}. value is the new allowance.