Blockwell

Paxos Standard

About link description

Paxos Standard (PAX) is a cryptocurrency and operates on the Ethereum platform. Paxos Standard has a current supply of 889,071,442.91. The last known price of Paxos Standard is 1.00005153 USD and is down -0.02 over the last 24 hours. It is currently trading on 147 active market(s) with $78,842,240.01 traded over the last 24 hours. More information can be found at https://paxos.com/standard.

Stats

Public Functions 6
Event Types 2
Code Size 10,073 bytes

Events (2) keyboard_arrow_up

AdminChanged Event

Parameters help
previousAdmin
address help
newAdmin
address help

Upgraded Event

Parameters help
implementation
address help

ADMIN_SLOT Constant

bytes32 help
0x10d6a54a4754c8869d6886b5f5d7fbfa5b4522237ea5c60d11bc4e7a1ff9390b

IMPLEMENTATION_SLOT Constant

bytes32 help
0x7050c9e0f4ca769c69bd3a8ef740bc37934f8e2c036e5a723fd8ee048ed3f8c3

Functions Expand All Collapse All

Parameters help

This function has no parameters.

Properties

Visibility help public
Mutability help payable
Source Code
function() external payable {
  _fallback();
}

Parameters help

This function has no parameters.

Properties

Visibility help public
Mutability help view

Modifiers help

ifAdmin checks for the following:
Source Code
function admin() external view ifAdmin returns (address) {
  return _admin();
}

Parameters help

This function has no parameters.

Properties

Visibility help public
Mutability help view

Modifiers help

ifAdmin checks for the following:
Source Code
function implementation() external view ifAdmin returns (address) {
  return _implementation();
}

Parameters help

Name Type
newAdmin
address help

Properties

Visibility help public
Mutability help transaction

Modifiers help

ifAdmin checks for the following:

Requirements help

Source Code
function changeAdmin(address newAdmin) external ifAdmin {
  require(
    newAdmin != address(0),
    "Cannot change the admin of a proxy to the zero address"
  );
  emit AdminChanged(_admin(), newAdmin);
  _setAdmin(newAdmin);
}

Parameters help

Name Type
newImplementation
address help

Properties

Visibility help public
Mutability help transaction

Modifiers help

ifAdmin checks for the following:
Source Code
function upgradeTo(address newImplementation) external ifAdmin {
  _upgradeTo(newImplementation);
}

Parameters help

Name Type
newImplementation
address help
data
bytes help

Properties

Visibility help public
Mutability help payable

Modifiers help

ifAdmin checks for the following:
Source Code
function upgradeToAndCall(address newImplementation, bytes data)
  external
  payable
  ifAdmin
{
  _upgradeTo(newImplementation);
  require(address(this).call.value(msg.value)(data));
}

Internal Functions Expand All Collapse All

Internal functions are parts of the contract that can't be used directly, but instead are used by the public functions listed above.

internal AdminUpgradeabilityProxy._admin keyboard_arrow_up

Parameters help

This function has no parameters.

Properties

Visibility help internal
Mutability help view
Source Code
function _admin() internal view returns (address adm) {
  bytes32 slot = ADMIN_SLOT;
  assembly {
    adm := sload(slot)
  }
}

internal AdminUpgradeabilityProxy._setAdmin keyboard_arrow_up

Parameters help

Name Type
newAdmin
address help

Properties

Visibility help internal
Mutability help transaction
Source Code
function _setAdmin(address newAdmin) internal {
  bytes32 slot = ADMIN_SLOT;

  assembly {
    sstore(slot, newAdmin)
  }
}

internal AdminUpgradeabilityProxy._willFallback keyboard_arrow_up

Parameters help

This function has no parameters.

Properties

Visibility help internal
Mutability help transaction

Requirements help

Source Code
function _willFallback() internal {
  require(
    msg.sender != _admin(),
    "Cannot call fallback function from the proxy admin"
  );
  super._willFallback();
}

internal UpgradeabilityProxy._implementation keyboard_arrow_up

Parameters help

This function has no parameters.

Properties

Visibility help internal
Mutability help view
Source Code
function _implementation() internal view returns (address impl) {
  bytes32 slot = IMPLEMENTATION_SLOT;
  assembly {
    impl := sload(slot)
  }
}

internal UpgradeabilityProxy._upgradeTo keyboard_arrow_up

Parameters help

Name Type
newImplementation
address help

Properties

Visibility help internal
Mutability help transaction
Source Code
function _upgradeTo(address newImplementation) internal {
  _setImplementation(newImplementation);
  emit Upgraded(newImplementation);
}

internal UpgradeabilityProxy._setImplementation keyboard_arrow_up

Parameters help

Name Type
newImplementation
address help

Properties

Visibility help private
Mutability help transaction
Source Code
function _setImplementation(address newImplementation) private {
  require(
    AddressUtils.isContract(newImplementation),
    "Cannot set a proxy implementation to a non-contract address"
  );

  bytes32 slot = IMPLEMENTATION_SLOT;

  assembly {
    sstore(slot, newImplementation)
  }
}

internal Proxy._implementation keyboard_arrow_up

Parameters help

This function has no parameters.

Properties

Visibility help internal
Mutability help view
Source Code
function _implementation() internal view returns (address);

internal Proxy._delegate keyboard_arrow_up

Parameters help

Name Type
implementation
address help

Properties

Visibility help internal
Mutability help transaction
Source Code
function _delegate(address implementation) internal {
  assembly {
    // Copy msg.data. We take full control of memory in this inline assembly
    // block because it will not return to Solidity code. We overwrite the
    // Solidity scratch pad at memory position 0.
    calldatacopy(0, 0, calldatasize)

    // Call the implementation.
    // out and outsize are 0 because we don't know the size yet.
    let result := delegatecall(gas, implementation, 0, calldatasize, 0, 0)

    // Copy the returned data.
    returndatacopy(0, 0, returndatasize)

    switch result
    // delegatecall returns 0 on error.
    case 0 {
      revert(0, returndatasize)
    }
    default {
      return(0, returndatasize)
    }
  }
}

internal Proxy._willFallback keyboard_arrow_up

Parameters help

This function has no parameters.

Properties

Visibility help internal
Mutability help transaction
Source Code
function _willFallback() internal {}

internal Proxy._fallback keyboard_arrow_up

Parameters help

This function has no parameters.

Properties

Visibility help internal
Mutability help transaction
Source Code
function _fallback() internal {
  _willFallback();
  _delegate(_implementation());
}