Contract Source Code (Vyper language format)

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# @version 0.3.10

"""
@title yPRISMA
@license GNU AGPLv3
@author Yearn Finance
"""

from vyper.interfaces import ERC20

implements: ERC20

event Transfer:
    sender: indexed(address)
    receiver: indexed(address)
    value: uint256

event Approval:
    owner: indexed(address)
    spender: indexed(address)
    value: uint256

event DelegateMint:
    minter: indexed(address)
    recipient: indexed(address)
    amount: uint256

event ApproveMinter:
    minter: indexed(address)
    approved: indexed(bool)

event UpdateOperator:
    operator: indexed(address)

ylocker: public(immutable(address))
prisma: public(immutable(address))
name: public(immutable(String[32]))
symbol: public(immutable(String[32]))
decimals: public(immutable(uint8))

balanceOf: public(HashMap[address, uint256])
allowance: public(HashMap[address, HashMap[address, uint256]])
totalSupply: public(uint256)
approved_minters: public(HashMap[address, bool])
operator: public(address)
proposed_operator: public(address)

@external
def __init__(_name: String[32], _symbol: String[32], _prisma: address, _ylocker: address, _operator: address):
    name = _name
    symbol = _symbol
    decimals = 18
    prisma = _prisma
    ylocker = _ylocker
    self.operator = _operator

@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.
    """
    self.balanceOf[msg.sender] -= _value
    self.balanceOf[_to] += _value
    log 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
    """
    self.balanceOf[_from] -= _value
    self.balanceOf[_to] += _value
    self.allowance[_from][msg.sender] -= _value
    log 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 Approval(msg.sender, _spender, _value)
    return True
        
@internal
def _mint(_to: address, _value: uint256):
    self.totalSupply += _value
    self.balanceOf[_to] += _value
    log Transfer(empty(address), _to, _value)

@external
def mint(_amount: uint256 = max_value(uint256), _recipient: address = msg.sender) -> uint256:
    """
    @notice Lock any amount of the underlying token to mint yTOKEN 1 to 1.
    @param _amount The desired amount of tokens to lock / yTOKENs to mint.
    @param _recipient The address which minted yTOKENS should be received at.
    """
    assert _recipient not in [self, empty(address)]
    amount: uint256 = _amount
    if amount == max_value(uint256):
        amount = ERC20(prisma).balanceOf(msg.sender)
    assert amount > 0
    assert ERC20(prisma).transferFrom(msg.sender, ylocker, amount)
    self._mint(_recipient, amount)
    return amount

@external
def delegate_mint(_recipient: address, _amount: uint256) -> uint256:
    """
    @dev Minters must be permitted to mint upon user claims from the vault.
    @param _amount The desired amount of tokens to lock / yTOKENs to mint.
    @param _recipient The address which minted yTOKENS should be received at.
    """
    assert self.approved_minters[msg.sender], "!approved"
    self._mint(_recipient, _amount)
    log DelegateMint(msg.sender, _recipient, _amount)
    return _amount

@external
def approve_minter(_minter: address, _approved: bool):
    assert msg.sender == self.operator, "!approved"
    self.approved_minters[_minter] = _approved
    log ApproveMinter(_minter, _approved)

@external
def set_operator(_proposed_operator: address):
    assert msg.sender == self.operator
    self.proposed_operator = _proposed_operator

@external
def accept_operator():
    proposed_operator: address = self.proposed_operator
    assert msg.sender == proposed_operator
    self.operator = proposed_operator
    self.proposed_operator = empty(address)
    log UpdateOperator(proposed_operator)

@external
def sweep(_token: address, _amount: uint256 = max_value(uint256)):
    operator: address = self.operator
    assert msg.sender == operator
    amount: uint256 = _amount
    if amount == max_value(uint256):
        amount = ERC20(_token).balanceOf(self)
    assert amount > 0
    assert ERC20(_token).transfer(operator, amount, default_return_value=True)

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[{"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"},{"name":"DelegateMint","inputs":[{"name":"minter","type":"address","indexed":true},{"name":"recipient","type":"address","indexed":true},{"name":"amount","type":"uint256","indexed":false}],"anonymous":false,"type":"event"},{"name":"ApproveMinter","inputs":[{"name":"minter","type":"address","indexed":true},{"name":"approved","type":"bool","indexed":true}],"anonymous":false,"type":"event"},{"name":"UpdateOperator","inputs":[{"name":"operator","type":"address","indexed":true}],"anonymous":false,"type":"event"},{"stateMutability":"nonpayable","type":"constructor","inputs":[{"name":"_name","type":"string"},{"name":"_symbol","type":"string"},{"name":"_prisma","type":"address"},{"name":"_ylocker","type":"address"},{"name":"_operator","type":"address"}],"outputs":[]},{"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":"mint","inputs":[],"outputs":[{"name":"","type":"uint256"}]},{"stateMutability":"nonpayable","type":"function","name":"mint","inputs":[{"name":"_amount","type":"uint256"}],"outputs":[{"name":"","type":"uint256"}]},{"stateMutability":"nonpayable","type":"function","name":"mint","inputs":[{"name":"_amount","type":"uint256"},{"name":"_recipient","type":"address"}],"outputs":[{"name":"","type":"uint256"}]},{"stateMutability":"nonpayable","type":"function","name":"delegate_mint","inputs":[{"name":"_recipient","type":"address"},{"name":"_amount","type":"uint256"}],"outputs":[{"name":"","type":"uint256"}]},{"stateMutability":"nonpayable","type":"function","name":"approve_minter","inputs":[{"name":"_minter","type":"address"},{"name":"_approved","type":"bool"}],"outputs":[]},{"stateMutability":"nonpayable","type":"function","name":"set_operator","inputs":[{"name":"_proposed_operator","type":"address"}],"outputs":[]},{"stateMutability":"nonpayable","type":"function","name":"accept_operator","inputs":[],"outputs":[]},{"stateMutability":"nonpayable","type":"function","name":"sweep","inputs":[{"name":"_token","type":"address"}],"outputs":[]},{"stateMutability":"nonpayable","type":"function","name":"sweep","inputs":[{"name":"_token","type":"address"},{"name":"_amount","type":"uint256"}],"outputs":[]},{"stateMutability":"view","type":"function","name":"ylocker","inputs":[],"outputs":[{"name":"","type":"address"}]},{"stateMutability":"view","type":"function","name":"prisma","inputs":[],"outputs":[{"name":"","type":"address"}]},{"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":"view","type":"function","name":"approved_minters","inputs":[{"name":"arg0","type":"address"}],"outputs":[{"name":"","type":"bool"}]},{"stateMutability":"view","type":"function","name":"operator","inputs":[],"outputs":[{"name":"","type":"address"}]},{"stateMutability":"view","type":"function","name":"proposed_operator","inputs":[],"outputs":[{"name":"","type":"address"}]}]

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-----Decoded View---------------
Arg [0] : _name (string): Yearn PRISMA
Arg [1] : _symbol (string): yPRISMA
Arg [2] : _prisma (address): 0xdA47862a83dac0c112BA89c6abC2159b95afd71C
Arg [3] : _ylocker (address): 0x90be6DFEa8C80c184C442a36e17cB2439AAE25a7
Arg [4] : _operator (address): 0x4444AAAACDBa5580282365e25b16309Bd770ce4a

-----Encoded View---------------
9 Constructor Arguments found :
Arg [0] : 00000000000000000000000000000000000000000000000000000000000000a0
Arg [1] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [2] : 000000000000000000000000da47862a83dac0c112ba89c6abc2159b95afd71c
Arg [3] : 00000000000000000000000090be6dfea8c80c184c442a36e17cb2439aae25a7
Arg [4] : 0000000000000000000000004444aaaacdba5580282365e25b16309bd770ce4a
Arg [5] : 000000000000000000000000000000000000000000000000000000000000000c
Arg [6] : 596561726e20505249534d410000000000000000000000000000000000000000
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000007
Arg [8] : 79505249534d4100000000000000000000000000000000000000000000000000