DSToken

0x9f8f72aa9304c8b593d555f12ef6589cc3a579a2 Copy

ERC20

This contract is an ERC20 token.

Name DSToken

Symbol MKR

Decimals 18

Total Supply 1,005,577 MKR

About

Maker (MKR) is a cryptocurrency and operates on the Ethereum platform. Maker has a current supply of 991,328.38195493. The last known price of Maker is 2,474.87137393 USD and is down -1.99 over the last 24 hours. It is currently trading on 217 active market(s) with $118,268,031.48 traded over the last 24 hours. More information can be found at https://makerdao.com/.

Stats

Public Functions 19

Event Types 7

Code Size 15,513 bytes

Events (7)

Approval Event

Parameters

owner	address
spender	address
value	uint

Burn Event

Parameters

guy	address
wad	uint

LogNote Event

Parameters

sig	bytes4
guy	address
foo	bytes32
bar	bytes32
wad	uint
fax	bytes

LogSetAuthority Event

Parameters

authority

address

LogSetOwner Event

Parameters

owner

address

Mint Event

Parameters

guy	address
wad	uint

Transfer Event

Parameters

from	address
to	address
value	uint

Constants (2)

WAD Constant

uint

UNKNOWN VALUE

RAY Constant

uint

UNKNOWN VALUE

State Variables (9)

symbol Variable

bytes32

decimals Variable

uint256

name Variable

bytes32

stopped Variable

bool

authority Variable

address

owner Variable

address

_supply Variable

uint256

Internal Variable

_balances Variable

mapping(address => uint256)

Internal Variable

_approvals Variable

mapping(address => mapping(address => uint256))

Internal Variable

Functions Expand All Collapse All

setOwner

Parameters

Name	Type
owner_	address

Properties

Visibility public

Mutability transaction

Modifiers

auth checks for the following:

null

Source Code

function setOwner(address owner_) public auth {
  owner = owner_;
  LogSetOwner(owner);
}

setAuthority

Parameters

Name	Type
authority_	DSAuthority

Properties

Visibility public

Mutability transaction

Modifiers

auth checks for the following:

null

Source Code

function setAuthority(DSAuthority authority_) public auth {
  authority = authority_;
  LogSetAuthority(authority);
}

stop

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

auth checks for the following:

null

note checks for the following:

Source Code

function stop() public auth note {
  stopped = true;
}

start

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

auth checks for the following:

null

note checks for the following:

Source Code

function start() public auth note {
  stopped = false;
}

totalSupply

Parameters

This function has no parameters.

Properties

Visibility public

Mutability view

Source Code

function totalSupply() public view returns (uint256) {
  return _supply;
}

balanceOf

Parameters

Name	Type
src	address

Properties

Visibility public

Mutability view

Source Code

function balanceOf(address src) public view returns (uint256) {
  return _balances[src];
}

allowance

Parameters

Name	Type
src	address
guy	address

Properties

Visibility public

Mutability view

Source Code

function allowance(address src, address guy) public view returns (uint256) {
  return _approvals[src][guy];
}

transfer

Parameters

Name	Type
dst	address
wad	uint

Properties

Visibility public

Mutability transaction

Source Code

function transfer(address dst, uint256 wad) public returns (bool) {
  return transferFrom(msg.sender, dst, wad);
}

transferFrom

Parameters

Name	Type
src	address
dst	address
wad	uint

Properties

Visibility public

Mutability transaction

Modifiers

stoppable checks for the following:

stopped must not be true

Source Code

function transferFrom(
  address src,
  address dst,
  uint256 wad
) public stoppable returns (bool) {
  if (src != msg.sender && _approvals[src][msg.sender] != uint256(-1)) {
    _approvals[src][msg.sender] = sub(_approvals[src][msg.sender], wad);
  }

  _balances[src] = sub(_balances[src], wad);
  _balances[dst] = add(_balances[dst], wad);

  Transfer(src, dst, wad);

  return true;
}

approve

Parameters

Name	Type
guy	address
wad	uint

Properties

Visibility public

Mutability transaction

Modifiers

stoppable checks for the following:

stopped must not be true

Source Code

function approve(address guy, uint256 wad) public stoppable returns (bool) {
  return super.approve(guy, wad);
}

approve

Parameters

Name	Type
guy	address

Properties

Visibility public

Mutability transaction

Modifiers

stoppable checks for the following:

stopped must not be true

Source Code

function approve(address guy) public stoppable returns (bool) {
  return super.approve(guy, uint256(-1));
}

push

Parameters

Name	Type
dst	address
wad	uint

Properties

Visibility public

Mutability transaction

Source Code

function push(address dst, uint256 wad) public {
  transferFrom(msg.sender, dst, wad);
}

pull

Parameters

Name	Type
src	address
wad	uint

Properties

Visibility public

Mutability transaction

Source Code

function pull(address src, uint256 wad) public {
  transferFrom(src, msg.sender, wad);
}

move

Parameters

Name	Type
src	address
dst	address
wad	uint

Properties

Visibility public

Mutability transaction

Source Code

function move(
  address src,
  address dst,
  uint256 wad
) public {
  transferFrom(src, dst, wad);
}

mint

Parameters

Name	Type
wad	uint

Properties

Visibility public

Mutability transaction

Source Code

function mint(uint256 wad) public {
  mint(msg.sender, wad);
}

burn

Parameters

Name	Type
wad	uint

Properties

Visibility public

Mutability transaction

Source Code

function burn(uint256 wad) public {
  burn(msg.sender, wad);
}

mint

Parameters

Name	Type
guy	address
wad	uint

Properties

Visibility public

Mutability transaction

Modifiers

auth checks for the following:

null

stoppable checks for the following:

stopped must not be true

Source Code

function mint(address guy, uint256 wad) public auth stoppable {
  _balances[guy] = add(_balances[guy], wad);
  _supply = add(_supply, wad);
  Mint(guy, wad);
}

burn

Parameters

Name	Type
guy	address
wad	uint

Properties

Visibility public

Mutability transaction

Modifiers

auth checks for the following:

null

stoppable checks for the following:

stopped must not be true

Source Code

function burn(address guy, uint256 wad) public auth stoppable {
  if (guy != msg.sender && _approvals[guy][msg.sender] != uint256(-1)) {
    _approvals[guy][msg.sender] = sub(_approvals[guy][msg.sender], wad);
  }

  _balances[guy] = sub(_balances[guy], wad);
  _supply = sub(_supply, wad);
  Burn(guy, wad);
}

setName

Parameters

Name	Type
name_	bytes32

Properties

Visibility public

Mutability transaction

Modifiers

auth checks for the following:

null

Source Code

function setName(bytes32 name_) public auth {
  name = name_;
}

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 DSMath.add

Parameters

Name	Type
x	uint
y	uint

Properties

Visibility internal

Mutability pure

Requirements

x must be less than or equal to UNKNOWN VALUE

Source Code

function add(uint256 x, uint256 y) internal pure returns (uint256 z) {
  require((z = x + y) >= x);
}

internal DSMath.sub

Parameters

Name	Type
x	uint
y	uint

Properties

Visibility internal

Mutability pure

Requirements

x must be greater than or equal to UNKNOWN VALUE

Source Code

function sub(uint256 x, uint256 y) internal pure returns (uint256 z) {
  require((z = x - y) <= x);
}

internal DSMath.mul

Parameters

Name	Type
x	uint
y	uint

Properties

Visibility internal

Mutability pure

Requirements

One or more of the following: - x must be equal to UNKNOWN VALUE / y - OR y must be equal to 0

Source Code

function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {
  require(y == 0 || (z = x * y) / y == x);
}

internal DSMath.min

Parameters

Name	Type
x	uint
y	uint

Properties

Visibility internal

Mutability pure

Source Code

function min(uint256 x, uint256 y) internal pure returns (uint256 z) {
  return x <= y ? x : y;
}

internal DSMath.max

Parameters

Name	Type
x	uint
y	uint

Properties

Visibility internal

Mutability pure

Source Code

function max(uint256 x, uint256 y) internal pure returns (uint256 z) {
  return x >= y ? x : y;
}

internal DSMath.imin

Parameters

Name	Type
x	int
y	int

Properties

Visibility internal

Mutability pure

Source Code

function imin(int256 x, int256 y) internal pure returns (int256 z) {
  return x <= y ? x : y;
}

internal DSMath.imax

Parameters

Name	Type
x	int
y	int

Properties

Visibility internal

Mutability pure

Source Code

function imax(int256 x, int256 y) internal pure returns (int256 z) {
  return x >= y ? x : y;
}

internal DSMath.wmul

Parameters

Name	Type
x	uint
y	uint

Properties

Visibility internal

Mutability pure

Source Code

function wmul(uint256 x, uint256 y) internal pure returns (uint256 z) {
  z = add(mul(x, y), WAD / 2) / WAD;
}

internal DSMath.rmul

Parameters

Name	Type
x	uint
y	uint

Properties

Visibility internal

Mutability pure

Source Code

function rmul(uint256 x, uint256 y) internal pure returns (uint256 z) {
  z = add(mul(x, y), RAY / 2) / RAY;
}

internal DSMath.wdiv

Parameters

Name	Type
x	uint
y	uint

Properties

Visibility internal

Mutability pure

Source Code

function wdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {
  z = add(mul(x, WAD), y / 2) / y;
}

internal DSMath.rdiv

Parameters

Name	Type
x	uint
y	uint

Properties

Visibility internal

Mutability pure

Source Code

function rdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {
  z = add(mul(x, RAY), y / 2) / y;
}

internal DSMath.rpow

Parameters

Name	Type
x	uint
n	uint

Properties

Visibility internal

Mutability pure

Source Code

function rpow(uint256 x, uint256 n) internal pure returns (uint256 z) {
  z = n % 2 != 0 ? x : RAY;

  for (n /= 2; n != 0; n /= 2) {
    x = rmul(x, x);

    if (n % 2 != 0) {
      z = rmul(z, x);
    }
  }
}

internal DSAuth.isAuthorized

Parameters

Name	Type
src	address
sig	bytes4

Properties

Visibility internal

Mutability view

Source Code

function isAuthorized(address src, bytes4 sig) internal view returns (bool) {
  if (src == address(this)) {
    return true;
  } else if (src == owner) {
    return true;
  } else if (authority == DSAuthority(0)) {
    return false;
  } else {
    return authority.canCall(src, this, sig);
  }
}

DSToken

ERC20

About link description

Stats

Events (7) keyboard_arrow_up

Approval Event

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

Burn Event

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

LogNote Event

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

LogSetAuthority Event

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

LogSetOwner Event

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

Mint Event

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

Transfer Event

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

Constants (2) keyboard_arrow_up

WAD Constant

RAY Constant

State Variables (9) keyboard_arrow_up

symbol Variable

decimals Variable

name Variable

stopped Variable

authority Variable

owner Variable

_supply Variable

_balances Variable

_approvals Variable

Functions Expand All Collapse All

setOwner 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.

auth checks for the following:

Source Code

setAuthority 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.

auth checks for the following:

Source Code

stop 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.

auth checks for the following:

note checks for the following:

Source Code

start 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.

auth checks for the following:

note checks for the following:

Source Code

totalSupply 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

balanceOf 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

allowance 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

transfer 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

transferFrom 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.

stoppable checks for the following:

About

Events (7)

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Parameters

Constants (2)

State Variables (9)

setOwner

Parameters

Modifiers

setAuthority

Parameters

Modifiers

stop

Parameters

Modifiers

start

Parameters

Modifiers

totalSupply

Parameters

balanceOf

Parameters

allowance

Parameters

transfer

Parameters

transferFrom

Parameters

Modifiers

approve

Parameters

Modifiers

approve

Parameters

Modifiers

push

Parameters

pull

Parameters

move

Parameters

mint

Parameters

burn

Parameters

mint

Parameters

Modifiers

burn

Parameters

Modifiers

setName

Parameters

Modifiers

internal DSMath.add

Parameters

Requirements

internal DSMath.sub

Parameters

Requirements

internal DSMath.mul

Parameters

Requirements