Prevents Bounty from being claimed twice (#1374)

* signing prefix added * Minor improvement * Tests changed * Successfully tested * Minor improvements * Minor improvements * Revert "Dangling commas are now required. (#1359)" This reverts commit a6889776f4. * updates * fixes #1356 * Removed extra semicolon. (cherry picked from commit c87433e0c2)
2018-10-03 21:20:01 +05:30
parent bd8345a153
commit 7c984968d8
2 changed files with 5 additions and 0 deletions
--- a/contracts/drafts/BreakInvariantBounty.sol
+++ b/contracts/drafts/BreakInvariantBounty.sol
@ -47,6 +47,7 @@ contract BreakInvariantBounty is PullPayment, Ownable {
   * @param target contract
   */
  function claim(Target target) public {
+    require(!_claimed);
    address researcher = _researchers[target];
    require(researcher != address(0));
    // Check Target contract invariants