Address members not accessible by contract instance

This commit is contained in:
Leonardo Alt 2018-07-05 14:46:27 +02:00
parent 1d33f41c1a
commit 0075f4239a
27 changed files with 44 additions and 144 deletions

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@ -5,6 +5,7 @@ How to update your code:
* Change every ``keccak256(a, b, c)`` to ``keccak256(abi.encodePacked(a, b, c))``.
* Make your fallback functions ``external``.
* Explicitly state the storage location for local variables of struct and array types, e.g. change ``uint[] x = m_x`` to ``uint[] storage x = m_x``.
* Explicitly convert ``contract`` to ``address`` before using an ``address`` member. Example: if ``c`` is a variable of type ``contract``, change ``c.transfer(...)`` to ``address(c).transfer(...)``.
Breaking Changes:
@ -46,6 +47,7 @@ Breaking Changes:
* Type Checker: Only accept a single ``bytes`` type for ``.call()`` (and family), ``keccak256()``, ``sha256()`` and ``ripemd160()``.
* Type Checker: Fallback function must be external. This was already the case in the experimental 0.5.0 mode.
* Type Checker: Interface functions must be declared external. This was already the case in the experimental 0.5.0 mode.
* Type Checker: ``Contract`` does not have access to ``address`` members anymore. An explicit conversion is now required before invoking an ``address`` member from a ``contract``.
* Remove obsolete ``std`` directory from the Solidity repository. This means accessing ``https://github.com/ethereum/soldity/blob/develop/std/*.sol`` (or ``https://github.com/ethereum/solidity/std/*.sol`` in Remix) will not be possible.
* References Resolver: Turn missing storage locations into an error. This was already the case in the experimental 0.5.0 mode.
* Syntax Checker: Named return values in function types are an error.

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@ -1873,47 +1873,9 @@ MemberList::MemberMap ContractType::nativeMembers(ContractDefinition const* _con
&it.second->declaration()
));
}
// In 0.5.0 address members are not populated into the contract.
if (!_contract->sourceUnit().annotation().experimentalFeatures.count(ExperimentalFeature::V050))
addNonConflictingAddressMembers(members);
return members;
}
void ContractType::addNonConflictingAddressMembers(MemberList::MemberMap& _members)
{
MemberList::MemberMap addressMembers = IntegerType(160, IntegerType::Modifier::Address).nativeMembers(nullptr);
for (auto const& addressMember: addressMembers)
{
bool clash = false;
for (auto const& member: _members)
{
if (
member.name == addressMember.name &&
(
// Members with different types are not allowed
member.type->category() != addressMember.type->category() ||
// Members must overload functions without clash
(
member.type->category() == Type::Category::Function &&
dynamic_cast<FunctionType const&>(*member.type).hasEqualArgumentTypes(dynamic_cast<FunctionType const&>(*addressMember.type))
)
)
)
{
clash = true;
break;
}
}
if (!clash)
_members.push_back(MemberList::Member(
addressMember.name,
addressMember.type,
addressMember.declaration
));
}
}
shared_ptr<FunctionType const> const& ContractType::newExpressionType() const
{
if (!m_constructorType)

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@ -740,8 +740,6 @@ public:
std::vector<std::tuple<VariableDeclaration const*, u256, unsigned>> stateVariables() const;
private:
static void addNonConflictingAddressMembers(MemberList::MemberMap& _members);
ContractDefinition const& m_contract;
/// If true, it is the "super" type of the current contract, i.e. it contains only inherited
/// members.

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@ -2083,7 +2083,7 @@ BOOST_AUTO_TEST_CASE(transfer_ether)
constructor() public payable {}
function a(address addr, uint amount) public returns (uint) {
addr.transfer(amount);
return this.balance;
return address(this).balance;
}
function b(address addr, uint amount) public {
addr.transfer(amount);
@ -2790,10 +2790,10 @@ BOOST_AUTO_TEST_CASE(contracts_as_addresses)
}
contract test {
helper h;
constructor() public payable { h = new helper(); h.send(5); }
constructor() public payable { h = new helper(); address(h).send(5); }
function getBalance() public returns (uint256 myBalance, uint256 helperBalance) {
myBalance = this.balance;
helperBalance = h.balance;
myBalance = address(this).balance;
helperBalance = address(h).balance;
}
}
)";
@ -2808,7 +2808,7 @@ BOOST_AUTO_TEST_CASE(gas_and_value_basic)
contract helper {
bool flag;
function getBalance() payable public returns (uint256 myBalance) {
return this.balance;
return address(this).balance;
}
function setFlag() public { flag = true; }
function getFlag() public returns (bool fl) { return flag; }
@ -2825,7 +2825,7 @@ BOOST_AUTO_TEST_CASE(gas_and_value_basic)
}
function checkState() public returns (bool flagAfter, uint myBal) {
flagAfter = h.getFlag();
myBal = this.balance;
myBal = address(this).balance;
}
}
)";
@ -2841,7 +2841,7 @@ BOOST_AUTO_TEST_CASE(value_complex)
char const* sourceCode = R"(
contract helper {
function getBalance() payable public returns (uint256 myBalance) {
return this.balance;
return address(this).balance;
}
}
contract test {
@ -2862,7 +2862,7 @@ BOOST_AUTO_TEST_CASE(value_insane)
char const* sourceCode = R"(
contract helper {
function getBalance() payable public returns (uint256 myBalance) {
return this.balance;
return address(this).balance;
}
}
contract test {
@ -2897,7 +2897,7 @@ BOOST_AUTO_TEST_CASE(value_for_constructor)
}
function getFlag() public returns (bool ret) { return h.getFlag(); }
function getName() public returns (bytes3 ret) { return h.getName(); }
function getBalances() public returns (uint me, uint them) { me = this.balance; them = h.balance;}
function getBalances() public returns (uint me, uint them) { me = address(this).balance; them = address(h).balance;}
}
)";
compileAndRun(sourceCode, 22, "Main");
@ -3341,7 +3341,7 @@ BOOST_AUTO_TEST_CASE(default_fallback_throws)
char const* sourceCode = R"YY(
contract A {
function f() public returns (bool) {
return this.call("");
return address(this).call("");
}
}
)YY";
@ -4066,7 +4066,7 @@ BOOST_AUTO_TEST_CASE(call_forward_bytes)
contract sender {
constructor() public { rec = new receiver(); }
function() external { savedData = msg.data; }
function forward() public returns (bool) { !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;
@ -4095,18 +4095,18 @@ BOOST_AUTO_TEST_CASE(call_forward_bytes_length)
receiver rec;
constructor() public { rec = new receiver(); }
function viaCalldata() public returns (uint) {
require(rec.call(msg.data));
require(address(rec).call(msg.data));
return rec.calledLength();
}
function viaMemory() public returns (uint) {
bytes memory x = msg.data;
require(rec.call(x));
require(address(rec).call(x));
return rec.calledLength();
}
bytes s;
function viaStorage() public returns (uint) {
s = msg.data;
require(rec.call(s));
require(address(rec).call(s));
return rec.calledLength();
}
}
@ -4137,8 +4137,8 @@ BOOST_AUTO_TEST_CASE(copying_bytes_multiassign)
constructor() public { rec = new receiver(); }
function() external { savedData1 = savedData2 = msg.data; }
function forward(bool selector) public returns (bool) {
if (selector) { rec.call(savedData1); delete savedData1; }
else { rec.call(savedData2); delete savedData2; }
if (selector) { address(rec).call(savedData1); delete savedData1; }
else { address(rec).call(savedData2); delete savedData2; }
return true;
}
function val() public returns (uint) { return rec.received(); }
@ -4592,8 +4592,8 @@ BOOST_AUTO_TEST_CASE(bytes_in_arguments)
function g(uint a) public { result *= a; }
function test(uint a, bytes data1, bytes data2, uint b) external returns (uint r_a, uint r, uint r_b, uint l) {
r_a = a;
this.call(data1);
this.call(data2);
address(this).call(data1);
address(this).call(data2);
r = result;
r_b = b;
l = data1.length;
@ -6472,7 +6472,7 @@ BOOST_AUTO_TEST_CASE(evm_exceptions_in_constructor_call_fail)
contract A {
constructor() public
{
this.call("123");
address(this).call("123");
}
}
contract B {
@ -6536,7 +6536,7 @@ BOOST_AUTO_TEST_CASE(failing_send)
constructor() public payable {}
function callHelper(address _a) public returns (bool r, uint bal) {
r = !_a.send(5);
bal = this.balance;
bal = address(this).balance;
}
}
)";
@ -6559,7 +6559,7 @@ BOOST_AUTO_TEST_CASE(send_zero_ether)
constructor() public payable {}
function s() public returns (bool) {
Receiver r = new Receiver();
return r.send(0);
return address(r).send(0);
}
}
)";
@ -9742,7 +9742,7 @@ BOOST_AUTO_TEST_CASE(calling_nonexisting_contract_throws)
return 7;
}
function h() public returns (uint) {
d.call(""); // this does not throw (low-level)
address(d).call(""); // this does not throw (low-level)
return 7;
}
}
@ -11503,7 +11503,7 @@ BOOST_AUTO_TEST_CASE(bubble_up_error_messages_through_transfer)
revert("message");
}
function f() public {
this.transfer(0);
address(this).transfer(0);
}
}
contract C {
@ -11778,13 +11778,13 @@ BOOST_AUTO_TEST_CASE(delegatecall_return_value)
return value;
}
function get_delegated() external returns (bool) {
return this.delegatecall(abi.encodeWithSignature("get()"));
return address(this).delegatecall(abi.encodeWithSignature("get()"));
}
function assert0() external view {
assert(value == 0);
}
function assert0_delegated() external returns (bool) {
return this.delegatecall(abi.encodeWithSignature("assert0()"));
return address(this).delegatecall(abi.encodeWithSignature("assert0()"));
}
}
)DELIMITER";
@ -12494,7 +12494,7 @@ BOOST_AUTO_TEST_CASE(abi_encode_call)
uint[] memory b = new uint[](2);
b[0] = 6;
b[1] = 7;
require(this.call(abi.encodeWithSignature("c(uint256,uint256[])", a, b)));
require(address(this).call(abi.encodeWithSignature("c(uint256,uint256[])", a, b)));
return x;
}
}

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@ -9,9 +9,7 @@ contract B {
A a;
function() external {
a.transfer(100);
address(a).transfer(100);
}
}
// ----
// Warning: (213-223): Using contract member "transfer" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).transfer" instead.
// TypeError: (213-223): Value transfer to a contract without a payable fallback function.

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@ -7,9 +7,7 @@ contract B {
A a;
function() external {
a.transfer(100);
address(a).transfer(100);
}
}
// ----
// Warning: (192-202): Using contract member "transfer" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).transfer" instead.
// TypeError: (192-202): Value transfer to a contract without a payable fallback function.

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@ -9,9 +9,7 @@ contract B {
A a;
function() external {
require(a.send(100));
require(address(a).send(100));
}
}
// ----
// Warning: (224-230): Using contract member "send" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).send" instead.
// TypeError: (224-230): Value transfer to a contract without a payable fallback function.

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@ -9,8 +9,7 @@ contract B {
A a;
function() external {
a.transfer(100);
address(a).transfer(100);
}
}
// ----
// Warning: (228-238): Using contract member "transfer" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).transfer" instead.

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@ -4,4 +4,4 @@ contract C {
}
}
// ----
// Warning: (52-64): Using contract member "balance" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).balance" instead.
// TypeError: (52-64): Member "balance" not found or not visible after argument-dependent lookup in contract C

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@ -4,5 +4,4 @@ contract C {
}
}
// ----
// Warning: (52-65): Using contract member "transfer" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).transfer" instead.
// TypeError: (52-65): Value transfer to a contract without a payable fallback function.
// TypeError: (52-65): Member "transfer" not found or not visible after argument-dependent lookup in contract C

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@ -4,5 +4,4 @@ contract C {
}
}
// ----
// Warning: (52-61): Using contract member "send" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).send" instead.
// TypeError: (52-61): Value transfer to a contract without a payable fallback function.
// TypeError: (52-61): Member "send" not found or not visible after argument-dependent lookup in contract C

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@ -4,4 +4,4 @@ contract C {
}
}
// ----
// Warning: (52-61): Using contract member "call" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).call" instead.
// TypeError: (52-61): Member "call" not found or not visible after argument-dependent lookup in contract C

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@ -4,5 +4,4 @@ contract C {
}
}
// ----
// Warning: (52-65): Using contract member "callcode" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).callcode" instead.
// TypeError: (52-65): "callcode" has been deprecated in favour of "delegatecall".
// TypeError: (52-65): Member "callcode" not found or not visible after argument-dependent lookup in contract C

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@ -4,4 +4,4 @@ contract C {
}
}
// ----
// Warning: (52-69): Using contract member "delegatecall" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).delegatecall" instead.
// TypeError: (52-69): Member "delegatecall" not found or not visible after argument-dependent lookup in contract C

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@ -5,4 +5,4 @@ contract C {
}
}
// ----
// Warning: (65-74): Using contract member "balance" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).balance" instead.
// TypeError: (65-74): Member "balance" not found or not visible after argument-dependent lookup in contract C

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@ -5,5 +5,4 @@ contract C {
}
}
// ----
// Warning: (65-75): Using contract member "transfer" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).transfer" instead.
// TypeError: (65-75): Value transfer to a contract without a payable fallback function.
// TypeError: (65-75): Member "transfer" not found or not visible after argument-dependent lookup in contract C

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@ -5,5 +5,4 @@ contract C {
}
}
// ----
// Warning: (65-71): Using contract member "send" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).send" instead.
// TypeError: (65-71): Value transfer to a contract without a payable fallback function.
// TypeError: (65-71): Member "send" not found or not visible after argument-dependent lookup in contract C

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@ -5,4 +5,4 @@ contract C {
}
}
// ----
// Warning: (65-71): Using contract member "call" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).call" instead.
// TypeError: (65-71): Member "call" not found or not visible after argument-dependent lookup in contract C

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@ -5,5 +5,4 @@ contract C {
}
}
// ----
// Warning: (65-75): Using contract member "callcode" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).callcode" instead.
// TypeError: (65-75): "callcode" has been deprecated in favour of "delegatecall".
// TypeError: (65-75): Member "callcode" not found or not visible after argument-dependent lookup in contract C

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@ -5,4 +5,4 @@ contract C {
}
}
// ----
// Warning: (65-79): Using contract member "delegatecall" inherited from the address type is deprecated. Convert the contract to "address" type to access the member, for example use "address(contract).delegatecall" instead.
// TypeError: (65-79): Member "delegatecall" not found or not visible after argument-dependent lookup in contract C

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@ -1,8 +0,0 @@
pragma experimental "v0.5.0";
contract C {
function f() public {
this.balance;
}
}
// ----
// TypeError: (77-89): Member "balance" not found or not visible after argument-dependent lookup in contract C.

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@ -1,8 +0,0 @@
pragma experimental "v0.5.0";
contract C {
function f() public {
this.transfer;
}
}
// ----
// TypeError: (77-90): Member "transfer" not found or not visible after argument-dependent lookup in contract C.

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@ -1,8 +0,0 @@
pragma experimental "v0.5.0";
contract C {
function f() public {
this.send;
}
}
// ----
// TypeError: (77-86): Member "send" not found or not visible after argument-dependent lookup in contract C.

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@ -1,8 +0,0 @@
pragma experimental "v0.5.0";
contract C {
function f() public {
this.call;
}
}
// ----
// TypeError: (77-86): Member "call" not found or not visible after argument-dependent lookup in contract C.

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@ -1,8 +0,0 @@
pragma experimental "v0.5.0";
contract C {
function f() public {
this.callcode;
}
}
// ----
// TypeError: (77-90): Member "callcode" not found or not visible after argument-dependent lookup in contract C.

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@ -1,8 +0,0 @@
pragma experimental "v0.5.0";
contract C {
function f() public {
this.delegatecall;
}
}
// ----
// TypeError: (77-94): Member "delegatecall" not found or not visible after argument-dependent lookup in contract C.

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@ -1,4 +1,3 @@
pragma experimental "v0.5.0";
contract C {
function transfer(uint) public;
function f() public {