// tests compile-time evaluation of keccak256 on literal strings contract C { function short() public pure returns (bool) { bytes32 a = keccak256("abcdefghijklmn"); bytes memory s = "abcdefghijklmn"; return a == keccak256(s); } bytes32 constant sc = keccak256("abcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmn"); function long() public pure returns (bool, bool) { bytes32 a = keccak256("abcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmn"); bytes memory s = "abcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmnabcdefghijklmn"; return (a == keccak256(s), sc == keccak256(s)); } } // ==== // compileViaYul: also // ---- // short() -> true // long() -> true, true