diff options
18 files changed, 413 insertions, 138 deletions
diff --git a/docs/contracts.rst b/docs/contracts.rst index 669a374f..8fd1c89e 100644 --- a/docs/contracts.rst +++ b/docs/contracts.rst @@ -406,7 +406,8 @@ inheritable properties of contracts and may be overridden by derived contracts. /// The `return 7` statement assigns 7 to the return value but still /// executes the statement `locked = false` in the modifier. function f() public noReentrancy returns (uint) { - require(msg.sender.call("")); + (bool success,) = msg.sender.call(""); + require(success); return 7; } } @@ -645,7 +646,8 @@ Like any function, the fallback function can execute complex operations as long contract Caller { function callTest(Test test) public returns (bool) { - require(address(test).call(abi.encodeWithSignature("nonExistingFunction()"))); + (bool success,) = address(test).call(abi.encodeWithSignature("nonExistingFunction()")); + require(success); // results in test.x becoming == 1. // If someone sends ether to that contract, diff --git a/docs/security-considerations.rst b/docs/security-considerations.rst index 066a31ea..3bcd9566 100644 --- a/docs/security-considerations.rst +++ b/docs/security-considerations.rst @@ -86,7 +86,8 @@ as it uses ``call`` which forwards all remaining gas by default: mapping(address => uint) shares; /// Withdraw your share. function withdraw() public { - if (msg.sender.call.value(shares[msg.sender])("")) + (bool success,) = msg.sender.call.value(shares[msg.sender])(""); + if (success) shares[msg.sender] = 0; } } diff --git a/libsolidity/ast/Types.cpp b/libsolidity/ast/Types.cpp index e1e8403c..a6867dcb 100644 --- a/libsolidity/ast/Types.cpp +++ b/libsolidity/ast/Types.cpp @@ -617,11 +617,11 @@ MemberList::MemberMap IntegerType::nativeMembers(ContractDefinition const*) cons if (isAddress()) return { {"balance", make_shared<IntegerType>(256)}, - {"call", make_shared<FunctionType>(strings{"bytes memory"}, strings{"bool"}, FunctionType::Kind::BareCall, false, StateMutability::Payable)}, - {"callcode", make_shared<FunctionType>(strings{"bytes memory"}, strings{"bool"}, FunctionType::Kind::BareCallCode, false, StateMutability::Payable)}, - {"delegatecall", make_shared<FunctionType>(strings{"bytes memory"}, strings{"bool"}, FunctionType::Kind::BareDelegateCall, false)}, + {"call", make_shared<FunctionType>(strings{"bytes memory"}, strings{"bool", "bytes memory"}, FunctionType::Kind::BareCall, false, StateMutability::Payable)}, + {"callcode", make_shared<FunctionType>(strings{"bytes memory"}, strings{"bool", "bytes memory"}, FunctionType::Kind::BareCallCode, false, StateMutability::Payable)}, + {"delegatecall", make_shared<FunctionType>(strings{"bytes memory"}, strings{"bool", "bytes memory"}, FunctionType::Kind::BareDelegateCall, false)}, {"send", make_shared<FunctionType>(strings{"uint"}, strings{"bool"}, FunctionType::Kind::Send)}, - {"staticcall", make_shared<FunctionType>(strings{"bytes memory"}, strings{"bool"}, FunctionType::Kind::BareStaticCall, false, StateMutability::View)}, + {"staticcall", make_shared<FunctionType>(strings{"bytes memory"}, strings{"bool", "bytes memory"}, FunctionType::Kind::BareStaticCall, false, StateMutability::View)}, {"transfer", make_shared<FunctionType>(strings{"uint"}, strings(), FunctionType::Kind::Transfer)} }; else @@ -2492,7 +2492,14 @@ TypePointers FunctionType::returnParameterTypesWithoutDynamicTypes() const { TypePointers returnParameterTypes = m_returnParameterTypes; - if (m_kind == Kind::External || m_kind == Kind::DelegateCall) + if ( + m_kind == Kind::External || + m_kind == Kind::DelegateCall || + m_kind == Kind::BareCall || + m_kind == Kind::BareCallCode || + m_kind == Kind::BareDelegateCall || + m_kind == Kind::BareStaticCall + ) for (auto& param: returnParameterTypes) if (param->isDynamicallySized() && !param->dataStoredIn(DataLocation::Storage)) param = make_shared<InaccessibleDynamicType>(); diff --git a/libsolidity/codegen/ExpressionCompiler.cpp b/libsolidity/codegen/ExpressionCompiler.cpp index a844aeb8..3e8b7337 100644 --- a/libsolidity/codegen/ExpressionCompiler.cpp +++ b/libsolidity/codegen/ExpressionCompiler.cpp @@ -1827,33 +1827,34 @@ void ExpressionCompiler::appendExternalFunctionCall( auto funKind = _functionType.kind(); solAssert(funKind != FunctionType::Kind::BareStaticCall || m_context.evmVersion().hasStaticCall(), ""); - - bool returnSuccessCondition = funKind == FunctionType::Kind::BareCall || funKind == FunctionType::Kind::BareCallCode || funKind == FunctionType::Kind::BareDelegateCall || funKind == FunctionType::Kind::BareStaticCall; + + bool returnSuccessConditionAndReturndata = funKind == FunctionType::Kind::BareCall || funKind == FunctionType::Kind::BareCallCode || funKind == FunctionType::Kind::BareDelegateCall || funKind == FunctionType::Kind::BareStaticCall; bool isCallCode = funKind == FunctionType::Kind::BareCallCode; bool isDelegateCall = funKind == FunctionType::Kind::BareDelegateCall || funKind == FunctionType::Kind::DelegateCall; bool useStaticCall = funKind == FunctionType::Kind::BareStaticCall || (_functionType.stateMutability() <= StateMutability::View && m_context.evmVersion().hasStaticCall()); bool haveReturndatacopy = m_context.evmVersion().supportsReturndata(); unsigned retSize = 0; - TypePointers returnTypes; - if (returnSuccessCondition) - retSize = 0; // return value actually is success condition - else if (haveReturndatacopy) - returnTypes = _functionType.returnParameterTypes(); - else - returnTypes = _functionType.returnParameterTypesWithoutDynamicTypes(); - bool dynamicReturnSize = false; - for (auto const& retType: returnTypes) - if (retType->isDynamicallyEncoded()) - { - solAssert(haveReturndatacopy, ""); - dynamicReturnSize = true; - retSize = 0; - break; - } + TypePointers returnTypes; + if (!returnSuccessConditionAndReturndata) + { + if (haveReturndatacopy) + returnTypes = _functionType.returnParameterTypes(); else - retSize += retType->calldataEncodedSize(); + returnTypes = _functionType.returnParameterTypesWithoutDynamicTypes(); + + for (auto const& retType: returnTypes) + if (retType->isDynamicallyEncoded()) + { + solAssert(haveReturndatacopy, ""); + dynamicReturnSize = true; + retSize = 0; + break; + } + else + retSize += retType->calldataEncodedSize(); + } // Evaluate arguments. TypePointers argumentTypes; @@ -1997,7 +1998,7 @@ void ExpressionCompiler::appendExternalFunctionCall( (_functionType.gasSet() ? 1 : 0) + (!_functionType.isBareCall() ? 1 : 0); - if (returnSuccessCondition) + if (returnSuccessConditionAndReturndata) m_context << swapInstruction(remainsSize); else { @@ -2008,9 +2009,31 @@ void ExpressionCompiler::appendExternalFunctionCall( utils().popStackSlots(remainsSize); - if (returnSuccessCondition) + if (returnSuccessConditionAndReturndata) { - // already there + // success condition is already there + // The return parameter types can be empty, when this function is used as + // an internal helper function e.g. for ``send`` and ``transfer``. In that + // case we're only interested in the success condition, not the return data. + if (!_functionType.returnParameterTypes().empty()) + { + if (haveReturndatacopy) + { + m_context << Instruction::RETURNDATASIZE; + m_context.appendInlineAssembly(R"({ + switch v case 0 { + v := 0x60 + } default { + v := mload(0x40) + mstore(0x40, add(v, and(add(returndatasize(), 0x3f), not(0x1f)))) + mstore(v, returndatasize()) + returndatacopy(add(v, 0x20), 0, returndatasize()) + } + })", {"v"}); + } + else + utils().pushZeroPointer(); + } } else if (funKind == FunctionType::Kind::RIPEMD160) { diff --git a/test/compilationTests/MultiSigWallet/MultiSigWallet.sol b/test/compilationTests/MultiSigWallet/MultiSigWallet.sol index 35f6208b..dc6e98e4 100644 --- a/test/compilationTests/MultiSigWallet/MultiSigWallet.sol +++ b/test/compilationTests/MultiSigWallet/MultiSigWallet.sol @@ -226,13 +226,11 @@ contract MultiSigWallet { { if (isConfirmed(transactionId)) { Transaction storage tx = transactions[transactionId]; - tx.executed = true; - if (tx.destination.call.value(tx.value)(tx.data)) + (tx.executed,) = tx.destination.call.value(tx.value)(tx.data); + if (tx.executed) emit Execution(transactionId); - else { + else emit ExecutionFailure(transactionId); - tx.executed = false; - } } } diff --git a/test/compilationTests/MultiSigWallet/MultiSigWalletWithDailyLimit.sol b/test/compilationTests/MultiSigWallet/MultiSigWalletWithDailyLimit.sol index 69e94fd5..df2a1400 100644 --- a/test/compilationTests/MultiSigWallet/MultiSigWalletWithDailyLimit.sol +++ b/test/compilationTests/MultiSigWallet/MultiSigWalletWithDailyLimit.sol @@ -45,14 +45,13 @@ contract MultiSigWalletWithDailyLimit is MultiSigWallet { Transaction storage tx = transactions[transactionId]; bool confirmed = isConfirmed(transactionId); if (confirmed || tx.data.length == 0 && isUnderLimit(tx.value)) { - tx.executed = true; if (!confirmed) spentToday += tx.value; - if (tx.destination.call.value(tx.value)(tx.data)) + (tx.executed,) = tx.destination.call.value(tx.value)(tx.data); + if (tx.executed) emit Execution(transactionId); else { emit ExecutionFailure(transactionId); - tx.executed = false; if (!confirmed) spentToday -= tx.value; } diff --git a/test/compilationTests/milestonetracker/MilestoneTracker.sol b/test/compilationTests/milestonetracker/MilestoneTracker.sol index 856fb1a5..41fa7404 100644 --- a/test/compilationTests/milestonetracker/MilestoneTracker.sol +++ b/test/compilationTests/milestonetracker/MilestoneTracker.sol @@ -360,8 +360,8 @@ contract MilestoneTracker { // Recheck again to not pay twice if (milestone.status == MilestoneStatus.AuthorizedForPayment) revert(); milestone.status = MilestoneStatus.AuthorizedForPayment; - if (!milestone.paymentSource.call.value(0)(milestone.payData)) - revert(); + (bool success,) = milestone.paymentSource.call.value(0)(milestone.payData); + require(success); emit ProposalStatusChanged(_idMilestone, milestone.status); } } diff --git a/test/compilationTests/zeppelin/MultisigWallet.sol b/test/compilationTests/zeppelin/MultisigWallet.sol index 9aac5c53..abad0a01 100644 --- a/test/compilationTests/zeppelin/MultisigWallet.sol +++ b/test/compilationTests/zeppelin/MultisigWallet.sol @@ -60,9 +60,8 @@ contract MultisigWallet is Multisig, Shareable, DayLimit { if (underLimit(_value)) { emit SingleTransact(msg.sender, _value, _to, _data); // yes - just execute the call. - if (!_to.call.value(_value)(_data)) { - revert(); - } + (bool success,) = _to.call.value(_value)(_data); + require(success); return 0; } // determine our operation hash. @@ -82,9 +81,8 @@ contract MultisigWallet is Multisig, Shareable, DayLimit { */ function confirm(bytes32 _h) onlymanyowners(_h) public returns (bool) { if (txs[_h].to != address(0)) { - if (!txs[_h].to.call.value(txs[_h].value)(txs[_h].data)) { - revert(); - } + (bool success,) = txs[_h].to.call.value(txs[_h].value)(txs[_h].data); + require(success); emit MultiTransact(msg.sender, _h, txs[_h].value, txs[_h].to, txs[_h].data); delete txs[_h]; return true; diff --git a/test/libsolidity/SolidityEndToEndTest.cpp b/test/libsolidity/SolidityEndToEndTest.cpp index 2bf20126..63067b3c 100644 --- a/test/libsolidity/SolidityEndToEndTest.cpp +++ b/test/libsolidity/SolidityEndToEndTest.cpp @@ -3586,7 +3586,8 @@ BOOST_AUTO_TEST_CASE(default_fallback_throws) char const* sourceCode = R"YY( contract A { function f() public returns (bool) { - return address(this).call(""); + (bool success,) = address(this).call(""); + return success; } } )YY"; @@ -3598,7 +3599,9 @@ BOOST_AUTO_TEST_CASE(default_fallback_throws) char const* sourceCode = R"YY( contract A { function f() public returns (bool) { - return address(this).staticcall(""); + (bool success, bytes memory data) = address(this).staticcall(""); + assert(data.length == 0); + return success; } } )YY"; @@ -4408,7 +4411,8 @@ BOOST_AUTO_TEST_CASE(generic_delegatecall) function doSend(address rec) public payable { bytes4 signature = bytes4(bytes32(keccak256("receive(uint256)"))); - if (rec.delegatecall(abi.encodeWithSelector(signature, 23))) {} + (bool success,) = rec.delegatecall(abi.encodeWithSelector(signature, 23)); + success; } } )**"; @@ -4445,19 +4449,19 @@ BOOST_AUTO_TEST_CASE(generic_staticcall) function assertFunction(uint256 p) public view returns (uint256) { assert(x == p); return x; } } contract C { - function f(address a) public view returns (bool) + function f(address a) public view returns (bool, bytes memory) { return a.staticcall(abi.encodeWithSignature("pureFunction(uint256)", 23)); } - function g(address a) public view returns (bool) + function g(address a) public view returns (bool, bytes memory) { return a.staticcall(abi.encodeWithSignature("viewFunction(uint256)", 23)); } - function h(address a) public view returns (bool) + function h(address a) public view returns (bool, bytes memory) { return a.staticcall(abi.encodeWithSignature("nonpayableFunction(uint256)", 23)); } - function i(address a, uint256 v) public view returns (bool) + function i(address a, uint256 v) public view returns (bool, bytes memory) { return a.staticcall(abi.encodeWithSignature("assertFunction(uint256)", v)); } @@ -4466,11 +4470,11 @@ BOOST_AUTO_TEST_CASE(generic_staticcall) compileAndRun(sourceCode, 0, "A"); u160 const c_addressA = m_contractAddress; compileAndRun(sourceCode, 0, "C"); - ABI_CHECK(callContractFunction("f(address)", c_addressA), encodeArgs(true)); - ABI_CHECK(callContractFunction("g(address)", c_addressA), encodeArgs(true)); - ABI_CHECK(callContractFunction("h(address)", c_addressA), encodeArgs(false)); - ABI_CHECK(callContractFunction("i(address,uint256)", c_addressA, 42), encodeArgs(true)); - ABI_CHECK(callContractFunction("i(address,uint256)", c_addressA, 23), encodeArgs(false)); + ABI_CHECK(callContractFunction("f(address)", c_addressA), encodeArgs(true, 0x40, 0x20, 23)); + ABI_CHECK(callContractFunction("g(address)", c_addressA), encodeArgs(true, 0x40, 0x20, 23 + 42)); + ABI_CHECK(callContractFunction("h(address)", c_addressA), encodeArgs(false, 0x40, 0x00)); + ABI_CHECK(callContractFunction("i(address,uint256)", c_addressA, 42), encodeArgs(true, 0x40, 0x20, 42)); + ABI_CHECK(callContractFunction("i(address,uint256)", c_addressA, 23), encodeArgs(false, 0x40, 0x00)); } } @@ -4570,7 +4574,7 @@ BOOST_AUTO_TEST_CASE(call_forward_bytes) contract sender { constructor() public { rec = new receiver(); } function() external { savedData = msg.data; } - function forward() public returns (bool) { !address(rec).call(savedData); return true; } + function forward() public returns (bool) { address(rec).call(savedData); return true; } function clear() public returns (bool) { delete savedData; return true; } function val() public returns (uint) { return rec.received(); } receiver rec; @@ -4599,18 +4603,21 @@ BOOST_AUTO_TEST_CASE(call_forward_bytes_length) receiver rec; constructor() public { rec = new receiver(); } function viaCalldata() public returns (uint) { - require(address(rec).call(msg.data)); + (bool success,) = address(rec).call(msg.data); + require(success); return rec.calledLength(); } function viaMemory() public returns (uint) { bytes memory x = msg.data; - require(address(rec).call(x)); + (bool success,) = address(rec).call(x); + require(success); return rec.calledLength(); } bytes s; function viaStorage() public returns (uint) { s = msg.data; - require(address(rec).call(s)); + (bool success,) = address(rec).call(s); + require(success); return rec.calledLength(); } } @@ -10336,7 +10343,8 @@ BOOST_AUTO_TEST_CASE(mutex) // NOTE: It is very bad practice to write this function this way. // Please refer to the documentation of how to do this properly. if (amount > shares) revert(); - if (!msg.sender.call.value(amount)("")) revert(); + (bool success,) = msg.sender.call.value(amount)(""); + require(success); shares -= amount; return shares; } @@ -10344,7 +10352,8 @@ BOOST_AUTO_TEST_CASE(mutex) // NOTE: It is very bad practice to write this function this way. // Please refer to the documentation of how to do this properly. if (amount > shares) revert(); - if (!msg.sender.call.value(amount)("")) revert(); + (bool success,) = msg.sender.call.value(amount)(""); + require(success); shares -= amount; return shares; } @@ -12465,10 +12474,12 @@ BOOST_AUTO_TEST_CASE(bare_call_invalid_address) contract C { /// Calling into non-existant account is successful (creates the account) function f() external returns (bool) { - return address(0x4242).call(""); + (bool success,) = address(0x4242).call(""); + return success; } function h() external returns (bool) { - return address(0x4242).delegatecall(""); + (bool success,) = address(0x4242).delegatecall(""); + return success; } } )YY"; @@ -12480,50 +12491,217 @@ BOOST_AUTO_TEST_CASE(bare_call_invalid_address) { char const* sourceCode = R"YY( contract C { - function f() external returns (bool) { + function f() external returns (bool, bytes memory) { return address(0x4242).staticcall(""); } } )YY"; compileAndRun(sourceCode, 0, "C"); - ABI_CHECK(callContractFunction("f()"), encodeArgs(u256(1))); + ABI_CHECK(callContractFunction("f()"), encodeArgs(u256(1), 0x40, 0x00)); + } +} + +BOOST_AUTO_TEST_CASE(bare_call_return_data) +{ + if (dev::test::Options::get().evmVersion().supportsReturndata()) + { + vector<string> calltypes = {"call", "delegatecall"}; + if (dev::test::Options::get().evmVersion().hasStaticCall()) + calltypes.emplace_back("staticcall"); + for (string const& calltype: calltypes) + { + string sourceCode = R"DELIMITER( + contract A { + constructor() public { + } + function return_bool() public pure returns(bool) { + return true; + } + function return_int32() public pure returns(int32) { + return -32; + } + function return_uint32() public pure returns(uint32) { + return 0x3232; + } + function return_int256() public pure returns(int256) { + return -256; + } + function return_uint256() public pure returns(uint256) { + return 0x256256; + } + function return_bytes4() public pure returns(bytes4) { + return 0xabcd0012; + } + function return_multi() public pure returns(bool, uint32, bytes4) { + return (false, 0x3232, 0xabcd0012); + } + function return_bytes() public pure returns(bytes memory b) { + b = new bytes(2); + b[0] = 0x42; + b[1] = 0x21; + } + } + contract C { + A addr; + constructor() public { + addr = new A(); + } + function f(string memory signature) public returns (bool, bytes memory) { + return address(addr).)DELIMITER" + calltype + R"DELIMITER((abi.encodeWithSignature(signature)); + } + function check_bool() external returns (bool) { + (bool success, bytes memory data) = f("return_bool()"); + assert(success); + bool a = abi.decode(data, (bool)); + assert(a); + return true; + } + function check_int32() external returns (bool) { + (bool success, bytes memory data) = f("return_int32()"); + assert(success); + int32 a = abi.decode(data, (int32)); + assert(a == -32); + return true; + } + function check_uint32() external returns (bool) { + (bool success, bytes memory data) = f("return_uint32()"); + assert(success); + uint32 a = abi.decode(data, (uint32)); + assert(a == 0x3232); + return true; + } + function check_int256() external returns (bool) { + (bool success, bytes memory data) = f("return_int256()"); + assert(success); + int256 a = abi.decode(data, (int256)); + assert(a == -256); + return true; + } + function check_uint256() external returns (bool) { + (bool success, bytes memory data) = f("return_uint256()"); + assert(success); + uint256 a = abi.decode(data, (uint256)); + assert(a == 0x256256); + return true; + } + function check_bytes4() external returns (bool) { + (bool success, bytes memory data) = f("return_bytes4()"); + assert(success); + bytes4 a = abi.decode(data, (bytes4)); + assert(a == 0xabcd0012); + return true; + } + function check_multi() external returns (bool) { + (bool success, bytes memory data) = f("return_multi()"); + assert(success); + (bool a, uint32 b, bytes4 c) = abi.decode(data, (bool, uint32, bytes4)); + assert(a == false && b == 0x3232 && c == 0xabcd0012); + return true; + } + function check_bytes() external returns (bool) { + (bool success, bytes memory data) = f("return_bytes()"); + assert(success); + (bytes memory d) = abi.decode(data, (bytes)); + assert(d.length == 2 && d[0] == 0x42 && d[1] == 0x21); + return true; + } + } + )DELIMITER"; + compileAndRun(sourceCode, 0, "C"); + ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_bool()"))), encodeArgs(true, 0x40, 0x20, true)); + ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_int32()"))), encodeArgs(true, 0x40, 0x20, u256(-32))); + ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_uint32()"))), encodeArgs(true, 0x40, 0x20, u256(0x3232))); + ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_int256()"))), encodeArgs(true, 0x40, 0x20, u256(-256))); + ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_uint256()"))), encodeArgs(true, 0x40, 0x20, u256(0x256256))); + ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_bytes4()"))), encodeArgs(true, 0x40, 0x20, u256(0xabcd0012) << (28*8))); + ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_multi()"))), encodeArgs(true, 0x40, 0x60, false, u256(0x3232), u256(0xabcd0012) << (28*8))); + ABI_CHECK(callContractFunction("f(string)", encodeDyn(string("return_bytes()"))), encodeArgs(true, 0x40, 0x60, 0x20, 0x02, encode(bytes{0x42,0x21}, false))); + ABI_CHECK(callContractFunction("check_bool()"), encodeArgs(true)); + ABI_CHECK(callContractFunction("check_int32()"), encodeArgs(true)); + ABI_CHECK(callContractFunction("check_uint32()"), encodeArgs(true)); + ABI_CHECK(callContractFunction("check_int256()"), encodeArgs(true)); + ABI_CHECK(callContractFunction("check_uint256()"), encodeArgs(true)); + ABI_CHECK(callContractFunction("check_bytes4()"), encodeArgs(true)); + ABI_CHECK(callContractFunction("check_multi()"), encodeArgs(true)); + ABI_CHECK(callContractFunction("check_bytes()"), encodeArgs(true)); + } } } BOOST_AUTO_TEST_CASE(delegatecall_return_value) { - char const* sourceCode = R"DELIMITER( - contract C { - uint value; - function set(uint _value) external { - value = _value; - } - function get() external view returns (uint) { - return value; - } - function get_delegated() external returns (bool) { - return address(this).delegatecall(abi.encodeWithSignature("get()")); - } - function assert0() external view { - assert(value == 0); + if (dev::test::Options::get().evmVersion().supportsReturndata()) + { + char const* sourceCode = R"DELIMITER( + contract C { + uint value; + function set(uint _value) external { + value = _value; + } + function get() external view returns (uint) { + return value; + } + function get_delegated() external returns (bool, bytes memory) { + return address(this).delegatecall(abi.encodeWithSignature("get()")); + } + function assert0() external view { + assert(value == 0); + } + function assert0_delegated() external returns (bool, bytes memory) { + return address(this).delegatecall(abi.encodeWithSignature("assert0()")); + } } - function assert0_delegated() external returns (bool) { - return address(this).delegatecall(abi.encodeWithSignature("assert0()")); + )DELIMITER"; + compileAndRun(sourceCode, 0, "C"); + ABI_CHECK(callContractFunction("get()"), encodeArgs(u256(0))); + ABI_CHECK(callContractFunction("assert0_delegated()"), encodeArgs(u256(1), 0x40, 0x00)); + ABI_CHECK(callContractFunction("get_delegated()"), encodeArgs(u256(1), 0x40, 0x20, 0x00)); + ABI_CHECK(callContractFunction("set(uint256)", u256(1)), encodeArgs()); + ABI_CHECK(callContractFunction("get()"), encodeArgs(u256(1))); + ABI_CHECK(callContractFunction("assert0_delegated()"), encodeArgs(u256(0), 0x40, 0x00)); + ABI_CHECK(callContractFunction("get_delegated()"), encodeArgs(u256(1), 0x40, 0x20, 1)); + ABI_CHECK(callContractFunction("set(uint256)", u256(42)), encodeArgs()); + ABI_CHECK(callContractFunction("get()"), encodeArgs(u256(42))); + ABI_CHECK(callContractFunction("assert0_delegated()"), encodeArgs(u256(0), 0x40, 0x00)); + ABI_CHECK(callContractFunction("get_delegated()"), encodeArgs(u256(1), 0x40, 0x20, 42)); + } + else + { + char const* sourceCode = R"DELIMITER( + contract C { + uint value; + function set(uint _value) external { + value = _value; + } + function get() external view returns (uint) { + return value; + } + function get_delegated() external returns (bool) { + (bool success,) = address(this).delegatecall(abi.encodeWithSignature("get()")); + return success; + } + function assert0() external view { + assert(value == 0); + } + function assert0_delegated() external returns (bool) { + (bool success,) = address(this).delegatecall(abi.encodeWithSignature("assert0()")); + return success; + } } - } - )DELIMITER"; - compileAndRun(sourceCode, 0, "C"); - ABI_CHECK(callContractFunction("get()"), encodeArgs(u256(0))); - ABI_CHECK(callContractFunction("assert0_delegated()"), encodeArgs(u256(1))); - ABI_CHECK(callContractFunction("get_delegated()"), encodeArgs(u256(1))); - ABI_CHECK(callContractFunction("set(uint256)", u256(1)), encodeArgs()); - ABI_CHECK(callContractFunction("get()"), encodeArgs(u256(1))); - ABI_CHECK(callContractFunction("assert0_delegated()"), encodeArgs(u256(0))); - ABI_CHECK(callContractFunction("get_delegated()"), encodeArgs(u256(1))); - ABI_CHECK(callContractFunction("set(uint256)", u256(42)), encodeArgs()); - ABI_CHECK(callContractFunction("get()"), encodeArgs(u256(42))); - ABI_CHECK(callContractFunction("assert0_delegated()"), encodeArgs(u256(0))); - ABI_CHECK(callContractFunction("get_delegated()"), encodeArgs(u256(1))); + )DELIMITER"; + compileAndRun(sourceCode, 0, "C"); + ABI_CHECK(callContractFunction("get()"), encodeArgs(u256(0))); + ABI_CHECK(callContractFunction("assert0_delegated()"), encodeArgs(u256(1))); + ABI_CHECK(callContractFunction("get_delegated()"), encodeArgs(u256(1))); + ABI_CHECK(callContractFunction("set(uint256)", u256(1)), encodeArgs()); + ABI_CHECK(callContractFunction("get()"), encodeArgs(u256(1))); + ABI_CHECK(callContractFunction("assert0_delegated()"), encodeArgs(u256(0))); + ABI_CHECK(callContractFunction("get_delegated()"), encodeArgs(u256(1))); + ABI_CHECK(callContractFunction("set(uint256)", u256(42)), encodeArgs()); + ABI_CHECK(callContractFunction("get()"), encodeArgs(u256(42))); + ABI_CHECK(callContractFunction("assert0_delegated()"), encodeArgs(u256(0))); + ABI_CHECK(callContractFunction("get_delegated()"), encodeArgs(u256(1))); + } } BOOST_AUTO_TEST_CASE(function_types_sig) @@ -13292,7 +13470,8 @@ BOOST_AUTO_TEST_CASE(abi_encode_call) uint[] memory b = new uint[](2); b[0] = 6; b[1] = 7; - require(address(this).call(abi.encodeWithSignature("c(uint256,uint256[])", a, b))); + (bool success,) = address(this).call(abi.encodeWithSignature("c(uint256,uint256[])", a, b)); + require(success); return x; } } diff --git a/test/libsolidity/SolidityNameAndTypeResolution.cpp b/test/libsolidity/SolidityNameAndTypeResolution.cpp index 387505a5..af8465fc 100644 --- a/test/libsolidity/SolidityNameAndTypeResolution.cpp +++ b/test/libsolidity/SolidityNameAndTypeResolution.cpp @@ -438,7 +438,8 @@ BOOST_AUTO_TEST_CASE(address_staticcall) char const* sourceCode = R"( contract C { function f() public view returns(bool) { - return address(0x4242).staticcall(""); + (bool success,) = address(0x4242).staticcall(""); + return success; } } )"; @@ -464,6 +465,58 @@ BOOST_AUTO_TEST_CASE(address_staticcall_value) } } +BOOST_AUTO_TEST_CASE(address_call_full_return_type) +{ + char const* sourceCode = R"( + contract C { + function f() public { + (bool success, bytes memory m) = address(0x4242).call(""); + success; m; + } + } + )"; + + if (dev::test::Options::get().evmVersion().supportsReturndata()) + CHECK_SUCCESS_NO_WARNINGS(sourceCode); + else + CHECK_ERROR(sourceCode, TypeError, "Type inaccessible dynamic type is not implicitly convertible to expected type bytes memory."); +} + +BOOST_AUTO_TEST_CASE(address_delegatecall_full_return_type) +{ + char const* sourceCode = R"( + contract C { + function f() public { + (bool success, bytes memory m) = address(0x4242).delegatecall(""); + success; m; + } + } + )"; + + if (dev::test::Options::get().evmVersion().supportsReturndata()) + CHECK_SUCCESS_NO_WARNINGS(sourceCode); + else + CHECK_ERROR(sourceCode, TypeError, "Type inaccessible dynamic type is not implicitly convertible to expected type bytes memory."); +} + + +BOOST_AUTO_TEST_CASE(address_staticcall_full_return_type) +{ + if (dev::test::Options::get().evmVersion().hasStaticCall()) + { + char const* sourceCode = R"( + contract C { + function f() public view { + (bool success, bytes memory m) = address(0x4242).staticcall(""); + success; m; + } + } + )"; + + CHECK_SUCCESS_NO_WARNINGS(sourceCode); + } +} + BOOST_AUTO_TEST_SUITE_END() } diff --git a/test/libsolidity/ViewPureChecker.cpp b/test/libsolidity/ViewPureChecker.cpp index d993b92e..b7ea1efc 100644 --- a/test/libsolidity/ViewPureChecker.cpp +++ b/test/libsolidity/ViewPureChecker.cpp @@ -103,7 +103,8 @@ BOOST_AUTO_TEST_CASE(address_staticcall) string text = R"( contract C { function i() view public returns (bool) { - return address(0x4242).staticcall(""); + (bool success,) = address(0x4242).staticcall(""); + return success; } } )"; diff --git a/test/libsolidity/syntaxTests/globalFunctions/call_with_wrong_arg_count.sol b/test/libsolidity/syntaxTests/globalFunctions/call_with_wrong_arg_count.sol index e8134539..92ec4eb7 100644 --- a/test/libsolidity/syntaxTests/globalFunctions/call_with_wrong_arg_count.sol +++ b/test/libsolidity/syntaxTests/globalFunctions/call_with_wrong_arg_count.sol @@ -1,13 +1,17 @@ contract C { function f() public { - require(address(this).call()); - require(address(this).call(bytes4(0x12345678))); - require(address(this).call(uint(1))); - require(address(this).call(uint(1), uint(2))); + (bool success,) = address(this).call(); + require(success); + (success,) = address(this).call(bytes4(0x12345678)); + require(success); + (success,) = address(this).call(uint(1)); + require(success); + (success,) = address(this).call(uint(1), uint(2)); + require(success); } } // ---- -// TypeError: (55-75): Wrong argument count for function call: 0 arguments given but expected 1. This function requires a single bytes argument. Use "" as argument to provide empty calldata. -// TypeError: (113-131): Invalid type for argument in function call. Invalid implicit conversion from bytes4 to bytes memory requested. This function requires a single bytes argument. If all your arguments are value types, you can use abi.encode(...) to properly generate it. -// TypeError: (170-177): Invalid type for argument in function call. Invalid implicit conversion from uint256 to bytes memory requested. This function requires a single bytes argument. If all your arguments are value types, you can use abi.encode(...) to properly generate it. -// TypeError: (197-233): Wrong argument count for function call: 2 arguments given but expected 1. This function requires a single bytes argument. If all your arguments are value types, you can use abi.encode(...) to properly generate it. +// TypeError: (65-85): Wrong argument count for function call: 0 arguments given but expected 1. This function requires a single bytes argument. Use "" as argument to provide empty calldata. +// TypeError: (153-171): Invalid type for argument in function call. Invalid implicit conversion from bytes4 to bytes memory requested. This function requires a single bytes argument. If all your arguments are value types, you can use abi.encode(...) to properly generate it. +// TypeError: (240-247): Invalid type for argument in function call. Invalid implicit conversion from uint256 to bytes memory requested. This function requires a single bytes argument. If all your arguments are value types, you can use abi.encode(...) to properly generate it. +// TypeError: (297-333): Wrong argument count for function call: 2 arguments given but expected 1. This function requires a single bytes argument. If all your arguments are value types, you can use abi.encode(...) to properly generate it. diff --git a/test/libsolidity/syntaxTests/globalFunctions/callcode_with_wrong_arg_count.sol b/test/libsolidity/syntaxTests/globalFunctions/callcode_with_wrong_arg_count.sol index 2b424d53..655d5f4c 100644 --- a/test/libsolidity/syntaxTests/globalFunctions/callcode_with_wrong_arg_count.sol +++ b/test/libsolidity/syntaxTests/globalFunctions/callcode_with_wrong_arg_count.sol @@ -1,11 +1,14 @@ contract C { function f() public { - require(address(this).callcode()); - require(address(this).callcode(uint(1))); - require(address(this).callcode(uint(1), uint(2))); + (bool success,) = address(this).callcode(); + require(success); + (success,) = address(this).callcode(uint(1)); + require(success); + (success,) = address(this).callcode(uint(1), uint(2)); + require(success); } } // ---- -// TypeError: (55-79): Wrong argument count for function call: 0 arguments given but expected 1. This function requires a single bytes argument. Use "" as argument to provide empty calldata. -// TypeError: (121-128): Invalid type for argument in function call. Invalid implicit conversion from uint256 to bytes memory requested. This function requires a single bytes argument. If all your arguments are value types, you can use abi.encode(...) to properly generate it. -// TypeError: (148-188): Wrong argument count for function call: 2 arguments given but expected 1. This function requires a single bytes argument. If all your arguments are value types, you can use abi.encode(...) to properly generate it. +// TypeError: (65-89): Wrong argument count for function call: 0 arguments given but expected 1. This function requires a single bytes argument. Use "" as argument to provide empty calldata. +// TypeError: (161-168): Invalid type for argument in function call. Invalid implicit conversion from uint256 to bytes memory requested. This function requires a single bytes argument. If all your arguments are value types, you can use abi.encode(...) to properly generate it. +// TypeError: (218-258): Wrong argument count for function call: 2 arguments given but expected 1. This function requires a single bytes argument. If all your arguments are value types, you can use abi.encode(...) to properly generate it. diff --git a/test/libsolidity/syntaxTests/globalFunctions/delegatecall_with_wrong_arg_count.sol b/test/libsolidity/syntaxTests/globalFunctions/delegatecall_with_wrong_arg_count.sol index be0347de..fa524b99 100644 --- a/test/libsolidity/syntaxTests/globalFunctions/delegatecall_with_wrong_arg_count.sol +++ b/test/libsolidity/syntaxTests/globalFunctions/delegatecall_with_wrong_arg_count.sol @@ -1,11 +1,14 @@ contract C { function f() public { - require(address(this).delegatecall()); - require(address(this).delegatecall(uint(1))); - require(address(this).delegatecall(uint(1), uint(2))); + (bool success,) = address(this).delegatecall(); + require(success); + (success,) = address(this).delegatecall(uint(1)); + require(success); + (success,) = address(this).delegatecall(uint(1), uint(2)); + require(success); } } // ---- -// TypeError: (55-83): Wrong argument count for function call: 0 arguments given but expected 1. This function requires a single bytes argument. Use "" as argument to provide empty calldata. -// TypeError: (129-136): Invalid type for argument in function call. Invalid implicit conversion from uint256 to bytes memory requested. This function requires a single bytes argument. If all your arguments are value types, you can use abi.encode(...) to properly generate it. -// TypeError: (156-200): Wrong argument count for function call: 2 arguments given but expected 1. This function requires a single bytes argument. If all your arguments are value types, you can use abi.encode(...) to properly generate it. +// TypeError: (65-93): Wrong argument count for function call: 0 arguments given but expected 1. This function requires a single bytes argument. Use "" as argument to provide empty calldata. +// TypeError: (169-176): Invalid type for argument in function call. Invalid implicit conversion from uint256 to bytes memory requested. This function requires a single bytes argument. If all your arguments are value types, you can use abi.encode(...) to properly generate it. +// TypeError: (226-270): Wrong argument count for function call: 2 arguments given but expected 1. This function requires a single bytes argument. If all your arguments are value types, you can use abi.encode(...) to properly generate it. diff --git a/test/libsolidity/syntaxTests/nameAndTypeResolution/413_address_methods.sol b/test/libsolidity/syntaxTests/nameAndTypeResolution/413_address_methods.sol index 9c42bc8f..b63d2a55 100644 --- a/test/libsolidity/syntaxTests/nameAndTypeResolution/413_address_methods.sol +++ b/test/libsolidity/syntaxTests/nameAndTypeResolution/413_address_methods.sol @@ -2,11 +2,11 @@ contract C { function f() public { address addr; uint balance = addr.balance; - bool callRet = addr.call(""); - bool delegatecallRet = addr.delegatecall(""); + (bool callSuc,) = addr.call(""); + (bool delegatecallSuc,) = addr.delegatecall(""); bool sendRet = addr.send(1); addr.transfer(1); - balance; callRet; delegatecallRet; sendRet; + balance; callSuc; delegatecallSuc; sendRet; } } // ---- diff --git a/test/libsolidity/syntaxTests/specialFunctions/types_with_unspecified_encoding_special_types.sol b/test/libsolidity/syntaxTests/specialFunctions/types_with_unspecified_encoding_special_types.sol index c97f588e..6e0b6db4 100644 --- a/test/libsolidity/syntaxTests/specialFunctions/types_with_unspecified_encoding_special_types.sol +++ b/test/libsolidity/syntaxTests/specialFunctions/types_with_unspecified_encoding_special_types.sol @@ -1,13 +1,13 @@ contract C { function f() public pure { - bool a = address(this).call(abi.encode(address(this).delegatecall, super)); - bool b = address(this).delegatecall(abi.encode(log0, tx, mulmod)); - a; b; + (bool a,) = address(this).call(abi.encode(address(this).delegatecall, super)); + (a,) = address(this).delegatecall(abi.encode(log0, tx, mulmod)); + a; } } // ---- -// TypeError: (91-117): This type cannot be encoded. -// TypeError: (119-124): This type cannot be encoded. -// TypeError: (183-187): This type cannot be encoded. -// TypeError: (189-191): This type cannot be encoded. -// TypeError: (193-199): This type cannot be encoded. +// TypeError: (94-120): This type cannot be encoded. +// TypeError: (122-127): This type cannot be encoded. +// TypeError: (184-188): This type cannot be encoded. +// TypeError: (190-192): This type cannot be encoded. +// TypeError: (194-200): This type cannot be encoded. diff --git a/test/libsolidity/syntaxTests/viewPureChecker/builtin_functions.sol b/test/libsolidity/syntaxTests/viewPureChecker/builtin_functions.sol index 2cb185c9..2503a319 100644 --- a/test/libsolidity/syntaxTests/viewPureChecker/builtin_functions.sol +++ b/test/libsolidity/syntaxTests/viewPureChecker/builtin_functions.sol @@ -3,8 +3,10 @@ contract C { address(this).transfer(1); require(address(this).send(2)); selfdestruct(address(this)); - require(address(this).delegatecall("")); - require(address(this).call("")); + (bool success,) = address(this).delegatecall(""); + require(success); + (success,) = address(this).call(""); + require(success); } function g() pure public { bytes32 x = keccak256("abc"); diff --git a/test/libsolidity/syntaxTests/viewPureChecker/builtin_functions_view_fail.sol b/test/libsolidity/syntaxTests/viewPureChecker/builtin_functions_view_fail.sol index 9b00fd6d..f951feb4 100644 --- a/test/libsolidity/syntaxTests/viewPureChecker/builtin_functions_view_fail.sol +++ b/test/libsolidity/syntaxTests/viewPureChecker/builtin_functions_view_fail.sol @@ -9,15 +9,17 @@ contract C { selfdestruct(address(this)); } function i() view public { - require(address(this).delegatecall("")); + (bool success,) = address(this).delegatecall(""); + require(success); } function j() view public { - require(address(this).call("")); + (bool success,) = address(this).call(""); + require(success); } } // ---- // TypeError: (52-77): Function declared as view, but this expression (potentially) modifies the state and thus requires non-payable (the default) or payable. // TypeError: (132-153): Function declared as view, but this expression (potentially) modifies the state and thus requires non-payable (the default) or payable. // TypeError: (201-228): Function declared as view, but this expression (potentially) modifies the state and thus requires non-payable (the default) or payable. -// TypeError: (283-313): Function declared as view, but this expression (potentially) modifies the state and thus requires non-payable (the default) or payable. -// TypeError: (369-391): Function declared as view, but this expression (potentially) modifies the state and thus requires non-payable (the default) or payable. +// TypeError: (293-323): Function declared as view, but this expression (potentially) modifies the state and thus requires non-payable (the default) or payable. +// TypeError: (414-436): Function declared as view, but this expression (potentially) modifies the state and thus requires non-payable (the default) or payable. |