2019-05-31 13:58:35 +00:00
{
"contractName" : "GnosisStandardToken" ,
"abi" : [
{
"anonymous" : false ,
"inputs" : [
{
"indexed" : true ,
"name" : "from" ,
"type" : "address"
} ,
{
"indexed" : true ,
"name" : "to" ,
"type" : "address"
} ,
{
"indexed" : false ,
"name" : "value" ,
"type" : "uint256"
}
] ,
"name" : "Transfer" ,
"type" : "event"
} ,
{
"anonymous" : false ,
"inputs" : [
{
"indexed" : true ,
"name" : "owner" ,
"type" : "address"
} ,
{
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"type" : "address"
} ,
{
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"name" : "value" ,
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}
] ,
"name" : "Approval" ,
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} ,
{
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{
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] ,
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} ,
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{
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"source" : "pragma solidity ^0.5.2;\nimport \"./Token.sol\";\nimport \"./Math.sol\";\nimport \"./Proxy.sol\";\n\n/**\n * Deprecated: Use Open Zeppeling one instead\n */\ncontract StandardTokenData {\n /*\n * Storage\n */\n mapping(address => uint) balances;\n mapping(address => mapping(address => uint)) allowances;\n uint totalTokens;\n}\n\n/**\n * Deprecated: Use Open Zeppeling one instead\n */\n/// @title Standard token contract with overflow protection\ncontract GnosisStandardToken is Token, StandardTokenData {\n using GnosisMath for *;\n\n /*\n * Public functions\n */\n /// @dev Transfers sender's tokens to a given address. Returns success\n /// @param to Address of token receiver\n /// @param value Number of tokens to transfer\n /// @return Was transfer successful?\n function transfer(address to, uint value) public returns (bool) {\n if (!balances[msg.sender].safeToSub(value) || !balances[to].safeToAdd(value)) {\n return false;\n }\n\n balances[msg.sender] -= value;\n balances[to] += value;\n emit Transfer(msg.sender, to, value);\n return true;\n }\n\n /// @dev Allows allowed third party to transfer tokens from one address to another. Returns success\n /// @param from Address from where tokens are withdrawn\n /// @param to Address to where tokens are sent\n /// @param value Number of tokens to transfer\n /// @return Was transfer successful?\n function transferFrom(address from, address to, uint value) public returns (bool) {\n if (!balances[from].safeToSub(value) || !allowances[from][msg.sender].safeToSub(\n value\n ) || !balances[to].safeToAdd(value)) {\n return false;\n }\n balances[from] -= value;\n allowances[from][msg.sender] -= value;\n balances[to] += value;\n emit Transfer(from, to, value);\n return true;\n }\n\n /// @dev Sets approved amount of tokens for spender. Returns success\n /// @param spender Address of allowed account\n /// @param value Number of approved tokens\n /// @return Was approval successful?\n function approve(address spender, uint value) public returns (bool) {\n allowances[msg.sender][spender] = value;\n emit Approval(msg.sender, spender, value);\n return true;\n }\n\n /// @dev Returns number of allowed tokens for given address\n /// @param owner Address of token owner\n /// @param spender Address of token spender\n /// @return Remaining allowance for spender\n function allowance(address owner, address spender) public view returns (uint) {\n return allowances[owner][spender];\n }\n\n /// @dev Returns number of tokens owned by given address\n /// @param owner Address of token owner\n /// @return Balance of owner\n function balanceOf(address owner) public view returns (uint) {\n return balances[owner];\n }\n\n /// @dev Returns total supply of tokens\n /// @return Total supply\n function totalSupply() public view returns (uint) {\n return totalTokens;\n }\n}\n" ,
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