Silence false positive warning on preValidatePurchase (#1857)

6 years ago · 1c1fa5d968
parent 0da886c9c4
commit 1c1fa5d968
1 changed files with 1 additions and 0 deletions
--- a/contracts/crowdsale/Crowdsale.sol
+++ b/contracts/crowdsale/Crowdsale.sol
@ -138,6 +138,7 @@ contract Crowdsale is ReentrancyGuard {
    function _preValidatePurchase(address beneficiary, uint256 weiAmount) internal view {
        require(beneficiary != address(0), "Crowdsale: beneficiary is the zero address");
        require(weiAmount != 0, "Crowdsale: weiAmount is 0");
+        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
    }

    /**