TrueUSD

0x0000000000085d4780b73119b644ae5ecd22b376 Copy

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Stats

Public Functions 7

Event Types 3

Code Size 7,184 bytes

Events (3)

NewPendingOwner Event

Parameters

currentOwner	address
pendingOwner	address

ProxyOwnershipTransferred Event

Parameters

previousOwner	address
newOwner	address

Upgraded Event

Parameters

implementation

address

Constants (3)

proxyOwnerPosition Constant

bytes32

the result of calling keccak256 with "trueUSD.proxy.owner"

pendingProxyOwnerPosition Constant

bytes32

the result of calling keccak256 with "trueUSD.pending.proxy.owner"

implementationPosition Constant

bytes32

the result of calling keccak256 with "trueUSD.proxy.implementation"

Functions Expand All Collapse All

implementation

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function implementation() public view returns (address impl) {
  bytes32 position = implementationPosition;
  assembly {
    impl := sload(position)
  }
}

constructor

Parameters

This function has no parameters.

Properties

Visibility public

Mutability payable

Requirements

_impl must not be equal to UNKNOWN VALUE

Source Code

function() external payable {
  address _impl = implementation();
  require(_impl != address(0), "implementation contract not set");

  assembly {
    let ptr := mload(0x40)
    calldatacopy(ptr, 0, calldatasize)
    let result := delegatecall(gas, _impl, ptr, calldatasize, 0, 0)
    let size := returndatasize
    returndatacopy(ptr, 0, size)

    switch result
    case 0 {
      revert(ptr, size)
    }
    default {
      return(ptr, size)
    }
  }
}

proxyOwner

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function proxyOwner() public view returns (address owner) {
  bytes32 position = proxyOwnerPosition;
  assembly {
    owner := sload(position)
  }
}

pendingProxyOwner

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function pendingProxyOwner() public view returns (address pendingOwner) {
  bytes32 position = pendingProxyOwnerPosition;
  assembly {
    pendingOwner := sload(position)
  }
}

transferProxyOwnership

Parameters

Name	Type
newOwner	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyProxyOwner checks for the following:

the sender's address must be equal to the result of calling proxyOwner

Requirements

newOwner must not be equal to UNKNOWN VALUE

Source Code

function transferProxyOwnership(address newOwner) external onlyProxyOwner {
  require(newOwner != address(0));
  _setPendingUpgradeabilityOwner(newOwner);
  emit NewPendingOwner(proxyOwner(), newOwner);
}

claimProxyOwnership

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlyPendingProxyOwner checks for the following:

the sender's address must be equal to the result of calling pendingProxyOwner

Source Code

function claimProxyOwnership() external onlyPendingProxyOwner {
  emit ProxyOwnershipTransferred(proxyOwner(), pendingProxyOwner());
  _setUpgradeabilityOwner(pendingProxyOwner());
  _setPendingUpgradeabilityOwner(address(0));
}

upgradeTo

Parameters

Name	Type
implementation	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyProxyOwner checks for the following:

the sender's address must be equal to the result of calling proxyOwner

Requirements

currentImplementation must not be equal to implementation

Source Code

function upgradeTo(address implementation) external onlyProxyOwner {
  _upgradeTo(implementation);
}

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 OwnedUpgradeabilityProxy._setUpgradeabilityOwner

Parameters

Name	Type
newProxyOwner	address

Properties

Visibility internal

Mutability transaction

Source Code

function _setUpgradeabilityOwner(address newProxyOwner) internal {
  bytes32 position = proxyOwnerPosition;
  assembly {
    sstore(position, newProxyOwner)
  }
}

internal OwnedUpgradeabilityProxy._setPendingUpgradeabilityOwner

Parameters

Name	Type
newPendingProxyOwner	address

Properties

Visibility internal

Mutability transaction

Source Code

function _setPendingUpgradeabilityOwner(address newPendingProxyOwner) internal {
  bytes32 position = pendingProxyOwnerPosition;
  assembly {
    sstore(position, newPendingProxyOwner)
  }
}

internal UpgradeabilityProxy._setImplementation

Parameters

Name	Type
newImplementation	address

Properties

Visibility internal

Mutability transaction

Source Code

function _setImplementation(address newImplementation) internal {
  bytes32 position = implementationPosition;
  assembly {
    sstore(position, newImplementation)
  }
}

internal UpgradeabilityProxy._upgradeTo

Parameters

Name	Type
newImplementation	address

Properties

Visibility internal

Mutability transaction

Requirements

currentImplementation must not be equal to implementation

Source Code

function _upgradeTo(address newImplementation) internal {
  address currentImplementation = implementation();
  require(currentImplementation != newImplementation);
  _setImplementation(newImplementation);
  emit Upgraded(newImplementation);
}

TrueUSD

About

Stats

Events (3) keyboard_arrow_up

NewPendingOwner Event

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

ProxyOwnershipTransferred 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 (3) keyboard_arrow_up

proxyOwnerPosition Constant

pendingProxyOwnerPosition Constant

implementationPosition Constant

Functions Expand All Collapse All

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

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

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

proxyOwner 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

pendingProxyOwner 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

transferProxyOwnership 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.

onlyProxyOwner 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

claimProxyOwnership 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.

onlyPendingProxyOwner checks for the following:

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.

onlyProxyOwner 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

Internal Functions Expand All Collapse All

internal OwnedUpgradeabilityProxy._setUpgradeabilityOwner 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 OwnedUpgradeabilityProxy._setPendingUpgradeabilityOwner 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 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

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

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Events (3)

Parameters

Parameters

Parameters

Constants (3)

implementation

Parameters

constructor

Parameters

Requirements

proxyOwner

Parameters

pendingProxyOwner

Parameters

transferProxyOwnership

Parameters

Modifiers

Requirements

claimProxyOwnership

Parameters

Modifiers

upgradeTo

Parameters

Modifiers

Requirements

internal OwnedUpgradeabilityProxy._setUpgradeabilityOwner

Parameters

internal OwnedUpgradeabilityProxy._setPendingUpgradeabilityOwner

Parameters

internal UpgradeabilityProxy._setImplementation

Parameters

internal UpgradeabilityProxy._upgradeTo

Parameters

Requirements