Paxos Standard

0x8e870d67f660d95d5be530380d0ec0bd388289e1 Copy

About

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)

AdminChanged Event

Parameters

previousAdmin	address
newAdmin	address

Upgraded Event

Parameters

implementation

address

Constants (2)

ADMIN_SLOT Constant

bytes32

0x10d6a54a4754c8869d6886b5f5d7fbfa5b4522237ea5c60d11bc4e7a1ff9390b

IMPLEMENTATION_SLOT Constant

bytes32

0x7050c9e0f4ca769c69bd3a8ef740bc37934f8e2c036e5a723fd8ee048ed3f8c3

Functions Expand All Collapse All

constructor

Parameters

This function has no parameters.

Properties

Visibility public

Mutability payable

Source Code

function() external payable {
  _fallback();
}

admin

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Modifiers

ifAdmin checks for the following:

Source Code

function admin() external view ifAdmin returns (address) {
  return _admin();
}

implementation

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Modifiers

ifAdmin checks for the following:

Source Code

function implementation() external view ifAdmin returns (address) {
  return _implementation();
}

changeAdmin

Parameters

Name	Type
newAdmin	address

Properties

Visibility public

Mutability transaction

Modifiers

ifAdmin checks for the following:

Requirements

newAdmin must not be equal to UNKNOWN VALUE

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);
}

upgradeTo

Parameters

Name	Type
newImplementation	address

Properties

Visibility public

Mutability transaction

Modifiers

ifAdmin checks for the following:

Source Code

function upgradeTo(address newImplementation) external ifAdmin {
  _upgradeTo(newImplementation);
}

upgradeToAndCall

Parameters

Name	Type
newImplementation	address
data	bytes

Properties

Visibility public

Mutability payable

Modifiers

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

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _admin() internal view returns (address adm) {
  bytes32 slot = ADMIN_SLOT;
  assembly {
    adm := sload(slot)
  }
}

internal AdminUpgradeabilityProxy._setAdmin

Parameters

Name	Type
newAdmin	address

Properties

Visibility internal

Mutability transaction

Source Code

function _setAdmin(address newAdmin) internal {
  bytes32 slot = ADMIN_SLOT;

  assembly {
    sstore(slot, newAdmin)
  }
}

internal AdminUpgradeabilityProxy._willFallback

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Requirements

the sender's address must not be equal to the result of calling _admin

Source Code

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

internal UpgradeabilityProxy._implementation

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _implementation() internal view returns (address impl) {
  bytes32 slot = IMPLEMENTATION_SLOT;
  assembly {
    impl := sload(slot)
  }
}

internal UpgradeabilityProxy._upgradeTo

Parameters

Name	Type
newImplementation	address

Properties

Visibility internal

Mutability transaction

Source Code

function _upgradeTo(address newImplementation) internal {
  _setImplementation(newImplementation);
  emit Upgraded(newImplementation);
}

internal UpgradeabilityProxy._setImplementation

Parameters

Name	Type
newImplementation	address

Properties

Visibility private

Mutability 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

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability view

Source Code

function _implementation() internal view returns (address);

internal Proxy._delegate

Parameters

Name	Type
implementation	address

Properties

Visibility internal

Mutability 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

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

function _willFallback() internal {}

internal Proxy._fallback

Parameters

This function has no parameters.

Properties

Visibility internal

Mutability transaction

Source Code

function _fallback() internal {
  _willFallback();
  _delegate(_implementation());
}

Paxos Standard

About link description

Stats

Events (2) keyboard_arrow_up

AdminChanged Event

Parameters help Event parameters list the data that an event contains.

Upgraded Event

Parameters help Event parameters list the data that an event contains.

Constants (2) keyboard_arrow_up

ADMIN_SLOT Constant

IMPLEMENTATION_SLOT Constant

Functions Expand All Collapse All

constructor keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

admin keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

ifAdmin checks for the following:

Source Code

implementation keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

ifAdmin checks for the following:

Source Code

changeAdmin keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

ifAdmin checks for the following:

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

upgradeTo keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

ifAdmin checks for the following:

Source Code

upgradeToAndCall keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Modifiers help Modifiers are additions to a function that typically make various checks before the function is run.

ifAdmin checks for the following:

Source Code

Internal Functions Expand All Collapse All

internal AdminUpgradeabilityProxy._admin keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

internal AdminUpgradeabilityProxy._setAdmin keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

internal AdminUpgradeabilityProxy._willFallback keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Requirements help Requirements are checks that the function makes when it runs, and give you insight on what conditions are required for the function to succeed.

Source Code

internal UpgradeabilityProxy._implementation keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

internal UpgradeabilityProxy._upgradeTo keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

internal UpgradeabilityProxy._setImplementation keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

internal Proxy._implementation keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

Source Code

internal Proxy._delegate keyboard_arrow_up

Parameters help Function parameters list what input the function expects from the user. Each parameter must be given a value.

Properties

About

Events (2)

Parameters

Parameters

Constants (2)

constructor

Parameters

admin

Parameters

Modifiers

implementation

Parameters

Modifiers

changeAdmin

Parameters

Modifiers

Requirements

upgradeTo

Parameters

Modifiers

upgradeToAndCall

Parameters

Modifiers

internal AdminUpgradeabilityProxy._admin

Parameters

internal AdminUpgradeabilityProxy._setAdmin

Parameters

internal AdminUpgradeabilityProxy._willFallback

Parameters

Requirements

internal UpgradeabilityProxy._implementation

Parameters

internal UpgradeabilityProxy._upgradeTo

Parameters

internal UpgradeabilityProxy._setImplementation

Parameters

internal Proxy._implementation

Parameters

internal Proxy._delegate

Parameters

internal Proxy._willFallback

Parameters

internal Proxy._fallback

Parameters