Leverj

0x0f4ca92660efad97a9a70cb0fe969c755439772c Copy

ERC20

This contract is an ERC20 token.

Name Leverj

Symbol LEV

Decimals 9

Total Supply 1,000,000,000 LEV

About

Stats

Public Functions 8

Event Types 2

Code Size 11,463 bytes

Events (2)

Approval Event

Parameters

_owner	address
_spender	address
_value	uint256

Transfer Event

Parameters

_from	address
_to	address
_value	uint256

State Variables (9)

name Variable

string

decimals Variable

uint8

symbol Variable

string

version Variable

string

totalSupply Variable

uint256

sale Variable

address

transfersAllowed Variable

bool

balances Variable

mapping(address => uint256)

Internal Variable

allowed Variable

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

Internal Variable

Functions Expand All Collapse All

balanceOf

Parameters

Name	Type
_owner	address

Properties

Visibility public

Mutability constant

Source Code

function balanceOf(address _owner) public constant returns (uint256 balance) {
  return balances[_owner];
}

transfer

Parameters

Name	Type
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Modifiers

validTransfer checks for the following:

One or more of the following: -transfersAllowed must be true - OR sale must be equal to the sender's address

Requirements

_value must be less than or equal to balances for the sender's address

Source Code

function transfer(address _to, uint256 _value)
  public
  validTransfer
  returns (bool success)
{
  //Default assumes totalSupply can't be over max (2^256 - 1).
  //If your token leaves out totalSupply and can issue more tokens as time goes on, you need to check if it doesn't wrap.
  //Replace the if with this one instead.
  //require(balances[msg.sender] >= _value && balances[_to] + _value > balances[_to]);
  require(balances[msg.sender] >= _value);
  balances[msg.sender] = SafeMath.sub(balances[msg.sender], _value);
  balances[_to] = SafeMath.add(balances[_to], _value);
  Transfer(msg.sender, _to, _value);
  return true;
}

transferFrom

Parameters

Name	Type
_from	address
_to	address
_value	uint256

Properties

Visibility public

Mutability transaction

Modifiers

validTransfer checks for the following:

One or more of the following: -transfersAllowed must be true - OR sale must be equal to the sender's address

Requirements

_value must be less than or equal to allowed for _from for the sender's address

_value must be less than or equal to balances for _from

Source Code

function transferFrom(
  address _from,
  address _to,
  uint256 _value
) public validTransfer returns (bool success) {
  //same as above. Replace this line with the following if you want to protect against wrapping uints.
  //require(balances[_from] >= _value && allowed[_from][msg.sender] >= _value && balances[_to] + _value > balances[_to]);
  require(balances[_from] >= _value && allowed[_from][msg.sender] >= _value);
  balances[_to] = SafeMath.add(balances[_to], _value);
  balances[_from] = SafeMath.sub(balances[_from], _value);
  allowed[_from][msg.sender] = SafeMath.sub(allowed[_from][msg.sender], _value);
  Transfer(_from, _to, _value);
  return true;
}

approve

Parameters

Name	Type
_spender	address
_value	uint256

Properties

Visibility public

Mutability transaction

Requirements

_value must be less than or equal to balances for the sender's address

Source Code

function approve(address _spender, uint256 _value)
  public
  returns (bool success)
{
  require(balances[msg.sender] >= _value);
  allowed[msg.sender][_spender] = _value;
  Approval(msg.sender, _spender, _value);
  return true;
}

allowance

Parameters

Name	Type
_owner	address
_spender	address

Properties

Visibility public

Mutability constant

Source Code

function allowance(address _owner, address _spender)
  public
  constant
  returns (uint256 remaining)
{
  return allowed[_owner][_spender];
}

approveAndCall

Parameters

Name	Type
_spender	address
_value	uint256
_extraData	bytes

Properties

Visibility public

Mutability transaction

Source Code

function approveAndCall(
  address _spender,
  uint256 _value,
  bytes _extraData
) public returns (bool success) {
  allowed[msg.sender][_spender] = _value;
  Approval(msg.sender, _spender, _value);

  //call the receiveApproval function on the contract you want to be notified. This crafts the function signature manually so one doesn't have to include a contract in here just for this.
  //receiveApproval(address _from, uint256 _value, address _tokenContract, bytes _extraData)
  //it is assumed that when does this that the call *should* succeed, otherwise one would use vanilla approve instead.
  require(
    _spender.call(
      bytes4(
        bytes32(keccak256("receiveApproval(address,uint256,address,bytes)"))
      ),
      msg.sender,
      _value,
      this,
      _extraData
    )
  );
  return true;
}

reversePurchase

Parameters

Name	Type
_tokenHolder	address

Properties

Visibility public

Mutability transaction

Modifiers

onlySale checks for the following:

sale must be equal to the sender's address

Requirements

transfersAllowed must not be true

Source Code

function reversePurchase(address _tokenHolder) public onlySale {
  require(!transfersAllowed);
  uint256 value = balances[_tokenHolder];
  balances[_tokenHolder] = SafeMath.sub(balances[_tokenHolder], value);
  balances[sale] = SafeMath.add(balances[sale], value);
  Transfer(_tokenHolder, sale, value);
}

removeTransferLock

Parameters

This function has no parameters.

Properties

Visibility public

Mutability transaction

Modifiers

onlySale checks for the following:

sale must be equal to the sender's address

Source Code

function removeTransferLock() public onlySale {
  transfersAllowed = true;
}

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.

Leverj

ERC20

About

Stats

Events (2) keyboard_arrow_up

Approval 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.

State Variables (9) keyboard_arrow_up

name Variable

decimals Variable

symbol Variable

version Variable

totalSupply Variable

sale Variable

transfersAllowed Variable

balances Variable

allowed Variable

Functions Expand All Collapse All

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

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

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

validTransfer 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

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.

validTransfer 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

approve 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

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

approveAndCall 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

reversePurchase 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.

onlySale 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

removeTransferLock 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.

onlySale checks for the following:

Source Code

Internal Functions Expand All Collapse All

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Events (2)

Parameters

Parameters

State Variables (9)

balanceOf

Parameters

transfer

Parameters

Modifiers

Requirements

transferFrom

Parameters

Modifiers

Requirements

approve

Parameters

Requirements

allowance

Parameters

approveAndCall

Parameters

reversePurchase

Parameters

Modifiers

Requirements

removeTransferLock

Parameters

Modifiers