Contract

Contract Source Code (Vyper language format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Submit Audit
• Compare

#pragma version >0.3.10


from ethereum.ercs import IERC20
from ethereum.ercs import IERC20Detailed


implements: IERC20
implements: IERC20Detailed


name: public(String[32])
symbol: public(String[32])
decimals: public(uint8)


# NOTE: By declaring `balanceOf` as public, vyper automatically generates a 'balanceOf()' getter
#       method to allow access to account balances.
balanceOf: public(HashMap[address, uint256])
# By declaring `allowance` as public, vyper automatically generates the `allowance()` getter
allowance: public(HashMap[address, HashMap[address, uint256]])
# By declaring `totalSupply` as public, we automatically create the `totalSupply()` getter
totalSupply: public(uint256)


@deploy
def __init__(_name: String[32], _symbol: String[32], _decimals: uint8, _supply: uint256):
    init_supply: uint256 = _supply * 10 ** convert(_decimals, uint256)
    self.name = _name
    self.symbol = _symbol
    self.decimals = _decimals
    self.balanceOf[msg.sender] = init_supply
    self.totalSupply = init_supply
    log IERC20.Transfer(empty(address), msg.sender, init_supply)


@external
def transfer(_to : address, _value : uint256) -> bool:
    """
    @dev Transfer token for a specified address
    @param _to The address to transfer to.
    @param _value The amount to be transferred.
    """
    # NOTE: vyper does not allow underflows
    #       so the following subtraction would revert on insufficient balance
    self.balanceOf[msg.sender] -= _value
    self.balanceOf[_to] += _value
    log IERC20.Transfer(msg.sender, _to, _value)
    return True


@external
def transferFrom(_from : address, _to : address, _value : uint256) -> bool:
    """
     @dev Transfer tokens from one address to another.
     @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
    """
    # NOTE: vyper does not allow underflows
    #       so the following subtraction would revert on insufficient balance
    self.balanceOf[_from] -= _value
    self.balanceOf[_to] += _value
    # NOTE: vyper does not allow underflows
    #      so the following subtraction would revert on insufficient allowance
    self.allowance[_from][msg.sender] -= _value
    log IERC20.Transfer(_from, _to, _value)
    return True


@external
def approve(_spender : address, _value : uint256) -> bool:
    """
    @dev Approve the passed address to spend the specified amount of tokens on behalf of msg.sender.
    @param _spender The address which will spend the funds.
    @param _value The amount of tokens to be spent.
    """
    self.allowance[msg.sender][_spender] = _value
    log IERC20.Approval(msg.sender, _spender, _value)
    return True


@internal
def _burn(_to: address, _value: uint256):
    """
    @dev Internal function that burns an amount of the token of a given
         account.
    @param _to The account whose tokens will be burned.
    @param _value The amount that will be burned.
    """
    assert _to != empty(address)
    self.totalSupply -= _value
    self.balanceOf[_to] -= _value
    log IERC20.Transfer(_to, empty(address), _value)


@external
def burn(_value: uint256):
    """
    @dev Burn an amount of the token of msg.sender.
    @param _value The amount that will be burned.
    """
    self._burn(msg.sender, _value)

• No Contract Security Audit Submitted- Submit Audit Here

[{"name":"Transfer","inputs":[{"name":"sender","type":"address","indexed":true},{"name":"receiver","type":"address","indexed":true},{"name":"value","type":"uint256","indexed":false}],"anonymous":false,"type":"event"},{"name":"Approval","inputs":[{"name":"owner","type":"address","indexed":true},{"name":"spender","type":"address","indexed":true},{"name":"value","type":"uint256","indexed":false}],"anonymous":false,"type":"event"},{"stateMutability":"nonpayable","type":"function","name":"transfer","inputs":[{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"outputs":[{"name":"","type":"bool"}]},{"stateMutability":"nonpayable","type":"function","name":"transferFrom","inputs":[{"name":"_from","type":"address"},{"name":"_to","type":"address"},{"name":"_value","type":"uint256"}],"outputs":[{"name":"","type":"bool"}]},{"stateMutability":"nonpayable","type":"function","name":"approve","inputs":[{"name":"_spender","type":"address"},{"name":"_value","type":"uint256"}],"outputs":[{"name":"","type":"bool"}]},{"stateMutability":"nonpayable","type":"function","name":"burn","inputs":[{"name":"_value","type":"uint256"}],"outputs":[]},{"stateMutability":"view","type":"function","name":"name","inputs":[],"outputs":[{"name":"","type":"string"}]},{"stateMutability":"view","type":"function","name":"symbol","inputs":[],"outputs":[{"name":"","type":"string"}]},{"stateMutability":"view","type":"function","name":"decimals","inputs":[],"outputs":[{"name":"","type":"uint8"}]},{"stateMutability":"view","type":"function","name":"balanceOf","inputs":[{"name":"arg0","type":"address"}],"outputs":[{"name":"","type":"uint256"}]},{"stateMutability":"view","type":"function","name":"allowance","inputs":[{"name":"arg0","type":"address"},{"name":"arg1","type":"address"}],"outputs":[{"name":"","type":"uint256"}]},{"stateMutability":"view","type":"function","name":"totalSupply","inputs":[],"outputs":[{"name":"","type":"uint256"}]},{"stateMutability":"nonpayable","type":"constructor","inputs":[{"name":"_name","type":"string"},{"name":"_symbol","type":"string"},{"name":"_decimals","type":"uint8"},{"name":"_supply","type":"uint256"}],"outputs":[]}]

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