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Added number of accounts to Role struct #1597 #1628

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Added number of accounts to Role struct #1597 #1628

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72f527f
Added number of acounts to Role struct #1597
Jan 31, 2019
520e8a6
Added number of acounts to Role struct #1597
Jan 31, 2019
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12 changes: 12 additions & 0 deletions contracts/access/Roles.sol
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@ pragma solidity ^0.5.2;
library Roles {
struct Role {
mapping (address => bool) bearer;
uint256 count;
}

/**
Expand All @@ -17,6 +18,7 @@ library Roles {
require(!has(role, account));

role.bearer[account] = true;
role.count += 1;
}

/**
Expand All @@ -27,6 +29,7 @@ library Roles {
require(has(role, account));

role.bearer[account] = false;
role.count -= 1;
}

/**
Expand All @@ -37,4 +40,13 @@ library Roles {
require(account != address(0));
return role.bearer[account];
}

/**
* @dev check if an account has this role
* @return uint
*/

function count(Role storage role) internal view returns (uint256) {
return role.count;
}
}