Synthetix Network Token

0xc011a72400e58ecd99ee497cf89e3775d4bd732f Copy

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Stats

Public Functions 6

Event Types 3

Code Size 6,361 bytes

Events (3)

OwnerChanged Event

Parameters

oldOwner	address
newOwner	address

OwnerNominated Event

Parameters

newOwner

address

TargetUpdated Event

Parameters

newTarget

Proxyable

State Variables (4)

target Variable

address

useDELEGATECALL Variable

bool

owner Variable

address

nominatedOwner Variable

address

Functions Expand All Collapse All

nominateNewOwner

Parameters

Name	Type
_owner	address

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function nominateNewOwner(address _owner) external onlyOwner {
  nominatedOwner = _owner;
  emit OwnerNominated(_owner);
}

acceptOwnership

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Requirements

nominatedOwner must be equal to the sender's address

Source Code

function acceptOwnership() external {
  require(msg.sender == nominatedOwner);
  emit OwnerChanged(owner, nominatedOwner);
  owner = nominatedOwner;
  nominatedOwner = address(0);
}

setTarget

Parameters

Name	Type
_target	Proxyable

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function setTarget(Proxyable _target) external onlyOwner {
  target = _target;
  emit TargetUpdated(_target);
}

setUseDELEGATECALL

Parameters

Name	Type
value	bool

Properties

Visibility public

Mutability transaction

Modifiers

onlyOwner checks for the following:

owner must be equal to the sender's address

Source Code

function setUseDELEGATECALL(bool value) external onlyOwner {
  useDELEGATECALL = value;
}

_emit

Parameters

Name	Type
callData	bytes
numTopics	uint
topic1	bytes32
topic2	bytes32
topic3	bytes32
topic4	bytes32

Properties

Visibility public

Mutability transaction

Modifiers

onlyTarget checks for the following:

target must be equal to the result of calling Proxyable with the sender's address

Source Code

function _emit(
  bytes callData,
  uint256 numTopics,
  bytes32 topic1,
  bytes32 topic2,
  bytes32 topic3,
  bytes32 topic4
) external onlyTarget {
  uint256 size = callData.length;
  bytes memory _callData = callData;

  assembly {
    /* The first 32 bytes of callData contain its length (as specified by the abi).
     * Length is assumed to be a uint256 and therefore maximum of 32 bytes
     * in length. It is also leftpadded to be a multiple of 32 bytes.
     * This means moving call_data across 32 bytes guarantees we correctly access
     * the data itself. */
    switch numTopics
    case 0 {
      log0(add(_callData, 32), size)
    }
    case 1 {
      log1(add(_callData, 32), size, topic1)
    }
    case 2 {
      log2(add(_callData, 32), size, topic1, topic2)
    }
    case 3 {
      log3(add(_callData, 32), size, topic1, topic2, topic3)
    }
    case 4 {
      log4(add(_callData, 32), size, topic1, topic2, topic3, topic4)
    }
  }
}

constructor

Parameters

This function has no parameters.

Properties

Visibility public

Mutability payable

Source Code

function() external payable {
  if (useDELEGATECALL) {
    assembly {
      /* Copy call data into free memory region. */
      let free_ptr := mload(0x40)
      calldatacopy(free_ptr, 0, calldatasize)

      /* Forward all gas and call data to the target contract. */
      let result := delegatecall(
        gas,
        sload(target_slot),
        free_ptr,
        calldatasize,
        0,
        0
      )
      returndatacopy(free_ptr, 0, returndatasize)

      /* Revert if the call failed, otherwise return the result. */
      if iszero(result) {
        revert(free_ptr, returndatasize)
      }
      return(free_ptr, returndatasize)
    }
  } else {
    /* Here we are as above, but must send the messageSender explicitly
     * since we are using CALL rather than DELEGATECALL. */
    target.setMessageSender(msg.sender);
    assembly {
      let free_ptr := mload(0x40)
      calldatacopy(free_ptr, 0, calldatasize)

      /* We must explicitly forward ether to the underlying contract as well. */
      let result := call(
        gas,
        sload(target_slot),
        callvalue,
        free_ptr,
        calldatasize,
        0,
        0
      )
      returndatacopy(free_ptr, 0, returndatasize)

      if iszero(result) {
        revert(free_ptr, returndatasize)
      }
      return(free_ptr, returndatasize)
    }
  }
}

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.

Synthetix Network Token

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Stats

Events (3) keyboard_arrow_up

OwnerChanged Event

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

OwnerNominated Event

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

TargetUpdated Event

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

State Variables (4) keyboard_arrow_up

target Variable

useDELEGATECALL Variable

owner Variable

nominatedOwner Variable

Functions Expand All Collapse All

nominateNewOwner 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.

onlyOwner checks for the following:

Source Code

acceptOwnership 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

setTarget 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.

onlyOwner checks for the following:

Source Code

setUseDELEGATECALL 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.

onlyOwner checks for the following:

Source Code

_emit 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.

onlyTarget checks for the following:

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

Source Code

Internal Functions Expand All Collapse All

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Events (3)

Parameters

Parameters

Parameters

State Variables (4)

nominateNewOwner

Parameters

Modifiers

acceptOwnership

Parameters

Requirements

setTarget

Parameters

Modifiers

setUseDELEGATECALL

Parameters

Modifiers

_emit

Parameters

Modifiers

constructor

Parameters