contract C { function g(bytes memory revertMsg) public pure returns (uint, uint) { assembly { revert(add(revertMsg, 0x20), mload(revertMsg)) } } function f1() public returns (uint x) { // Invalid signature try this.g(abi.encodeWithSelector(0x12345678, uint(0), uint(0), uint(0))) returns (uint a, uint b) { return 0; } catch Error(string memory) { return 1; } catch (bytes memory) { return 2; } } function f1a() public returns (uint x) { // Invalid signature try this.g(abi.encodeWithSelector(0x12345678, uint(0), uint(0), uint(0))) returns (uint a, uint b) { return 0; } catch Error(string memory) { return 1; } catch { return 2; } } function f1b() public returns (uint x) { // Invalid signature try this.g(abi.encodeWithSelector(0x12345678, uint(0), uint(0), uint(0))) returns (uint a, uint b) { return 0; } catch Error(string memory) { return 1; } } function f1c() public returns (uint x) { // Invalid signature try this.g(abi.encodeWithSelector(0x12345678, uint(0), uint(0), uint(0))) returns (uint a, uint b) { return 0; } catch { return 2; } } function f2() public returns (uint x) { // Valid signature but illegal offset try this.g(abi.encodeWithSignature("Error(string)", uint(0x100), uint(0), uint(0))) returns (uint a, uint b) { return 0; } catch Error(string memory) { return 1; } catch (bytes memory) { return 2; } } function f2a() public returns (uint x) { // Valid signature but illegal offset try this.g(abi.encodeWithSignature("Error(string)", uint(0x100), uint(0), uint(0))) returns (uint a, uint b) { return 0; } catch Error(string memory) { return 1; } catch { return 2; } } function f2b() public returns (uint x) { // Valid signature but illegal offset try this.g(abi.encodeWithSignature("Error(string)", uint(0x100), uint(0), uint(0))) returns (uint a, uint b) { return 0; } catch Error(string memory) { return 1; } } function f2c() public returns (uint x) { // Valid signature but illegal offset try this.g(abi.encodeWithSignature("Error(string)", uint(0x100), uint(0), uint(0))) returns (uint a, uint b) { return 0; } catch { return 1; } } function f3() public returns (uint x) { // Valid up to length try this.g(abi.encodeWithSignature("Error(string)", uint(0x20), uint(0x30), uint(0))) returns (uint a, uint b) { return 0; } catch Error(string memory) { return 1; } catch (bytes memory) { return 2; } } function f3a() public returns (uint x) { // Valid up to length try this.g(abi.encodeWithSignature("Error(string)", uint(0x20), uint(0x30), uint(0))) returns (uint a, uint b) { return 0; } catch Error(string memory) { return 1; } catch (bytes memory) { return 2; } } function f3b() public returns (uint x) { // Valid up to length try this.g(abi.encodeWithSignature("Error(string)", uint(0x20), uint(0x30), uint(0))) returns (uint a, uint b) { return 0; } catch Error(string memory) { return 1; } } function f3c() public returns (uint x) { // Valid up to length try this.g(abi.encodeWithSignature("Error(string)", uint(0x20), uint(0x30), uint(0))) returns (uint a, uint b) { return 0; } catch { return 1; } } function f4() public returns (uint x) { // Fully valid try this.g(abi.encodeWithSignature("Error(string)", uint(0x20), uint(0x7), bytes7("abcdefg"))) returns (uint a, uint b) { return 0; } catch Error(string memory) { return 1; } catch (bytes memory) { return 2; } } function f4a() public returns (uint x) { // Fully valid try this.g(abi.encodeWithSignature("Error(string)", uint(0x20), uint(0x7), bytes7("abcdefg"))) returns (uint a, uint b) { return 0; } catch Error(string memory) { return 1; } catch { return 2; } } function f4b() public returns (uint x) { // Fully valid try this.g(abi.encodeWithSignature("Error(string)", uint(0x20), uint(0x7), bytes7("abcdefg"))) returns (uint a, uint b) { return 0; } catch Error(string memory) { return 1; } } function f4c() public returns (uint x) { // Fully valid try this.g(abi.encodeWithSignature("Error(string)", uint(0x20), uint(0x7), bytes7("abcdefg"))) returns (uint a, uint b) { return 0; } catch { return 1; } } } // ==== // EVMVersion: >=byzantium // compileViaYul: also // ---- // f1() -> 2 // f1a() -> 2 // f1b() -> FAILURE, hex"12345678", 0x0, 0, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" // f1c() -> 2 // f2() -> 2 // f2a() -> 2 // f2b() -> FAILURE, hex"08c379a0", 0x100, 0, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" // f2c() -> 1 // f3() -> 2 // f3a() -> 2 // f3b() -> FAILURE, hex"08c379a0", 0x20, 48, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0" // f3c() -> 1 // f4() -> 1 // f4a() -> 1 // f4b() -> 1 // f4c() -> 1