/*
This file is part of solidity.
solidity is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
solidity is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with solidity. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @author Christian <c@ethdev.com>
* @date 2014
* Unit tests for the name and type resolution of the solidity parser.
*/
#include <test/libsolidity/AnalysisFramework.h>
#include <test/Options.h>
#include <libsolidity/ast/AST.h>
#include <libdevcore/Keccak256.h>
#include <boost/test/unit_test.hpp>
#include <string>
using namespace std;
namespace dev
{
namespace solidity
{
namespace test
{
BOOST_FIXTURE_TEST_SUITE(SolidityNameAndTypeResolution, AnalysisFramework)
BOOST_AUTO_TEST_CASE(function_no_implementation)
{
SourceUnit const* sourceUnit = nullptr;
char const* text = R"(
contract test {
function functionName(bytes32 input) public returns (bytes32 out);
}
)";
sourceUnit = parseAndAnalyse(text);
std::vector<ASTPointer<ASTNode>> nodes = sourceUnit->nodes();
ContractDefinition* contract = dynamic_cast<ContractDefinition*>(nodes[1].get());
BOOST_REQUIRE(contract);
BOOST_CHECK(!contract->annotation().unimplementedFunctions.empty());
BOOST_CHECK(!contract->definedFunctions()[0]->isImplemented());
}
BOOST_AUTO_TEST_CASE(abstract_contract)
{
SourceUnit const* sourceUnit = nullptr;
char const* text = R"(
contract base { function foo() public; }
contract derived is base { function foo() public {} }
)";
sourceUnit = parseAndAnalyse(text);
std::vector<ASTPointer<ASTNode>> nodes = sourceUnit->nodes();
ContractDefinition* base = dynamic_cast<ContractDefinition*>(nodes[1].get());
ContractDefinition* derived = dynamic_cast<ContractDefinition*>(nodes[2].get());
BOOST_REQUIRE(base);
BOOST_CHECK(!base->annotation().unimplementedFunctions.empty());
BOOST_CHECK(!base->definedFunctions()[0]->isImplemented());
BOOST_REQUIRE(derived);
BOOST_CHECK(derived->annotation().unimplementedFunctions.empty());
BOOST_CHECK(derived->definedFunctions()[0]->isImplemented());
}
BOOST_AUTO_TEST_CASE(abstract_contract_with_overload)
{
SourceUnit const* sourceUnit = nullptr;
char const* text = R"(
contract base { function foo(bool) public; }
contract derived is base { function foo(uint) public {} }
)";
sourceUnit = parseAndAnalyse(text);
std::vector<ASTPointer<ASTNode>> nodes = sourceUnit->nodes();
ContractDefinition* base = dynamic_cast<ContractDefinition*>(nodes[1].get());
ContractDefinition* derived = dynamic_cast<ContractDefinition*>(nodes[2].get());
BOOST_REQUIRE(base);
BOOST_CHECK(!base->annotation().unimplementedFunctions.empty());
BOOST_REQUIRE(derived);
BOOST_CHECK(!derived->annotation().unimplementedFunctions.empty());
}
BOOST_AUTO_TEST_CASE(implement_abstract_via_constructor)
{
SourceUnit const* sourceUnit = nullptr;
char const* text = R"(
contract base { function foo() public; }
contract foo is base { constructor() public {} }
)";
sourceUnit = parseAndAnalyse(text);
std::vector<ASTPointer<ASTNode>> nodes = sourceUnit->nodes();
BOOST_CHECK_EQUAL(nodes.size(), 3);
ContractDefinition* derived = dynamic_cast<ContractDefinition*>(nodes[2].get());
BOOST_REQUIRE(derived);
BOOST_CHECK(!derived->annotation().unimplementedFunctions.empty());
}
BOOST_AUTO_TEST_CASE(function_canonical_signature)
{
SourceUnit const* sourceUnit = nullptr;
char const* text = R"(
contract Test {
function foo(uint256 arg1, uint64 arg2, bool arg3) public returns (uint256 ret) {
ret = arg1 + arg2;
}
}
)";
sourceUnit = parseAndAnalyse(text);
for (ASTPointer<ASTNode> const& node: sourceUnit->nodes())
if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
{
auto functions = contract->definedFunctions();
BOOST_CHECK_EQUAL("foo(uint256,uint64,bool)", functions[0]->externalSignature());
}
}
BOOST_AUTO_TEST_CASE(function_canonical_signature_type_aliases)
{
SourceUnit const* sourceUnit = nullptr;
char const* text = R"(
contract Test {
function boo(uint, bytes32, address) public returns (uint ret) {
ret = 5;
}
}
)";
sourceUnit = parseAndAnalyse(text);
for (ASTPointer<ASTNode> const& node: sourceUnit->nodes())
if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
{
auto functions = contract->definedFunctions();
if (functions.empty())
continue;
BOOST_CHECK_EQUAL("boo(uint256,bytes32,address)", functions[0]->externalSignature());
}
}
BOOST_AUTO_TEST_CASE(function_external_types)
{
SourceUnit const* sourceUnit = nullptr;
char const* text = R"(
contract C {
uint a;
}
contract Test {
function boo(uint, bool, bytes8, bool[2] calldata, uint[] calldata, C, address[] calldata) external returns (uint ret) {
ret = 5;
}
}
)";
sourceUnit = parseAndAnalyse(text);
for (ASTPointer<ASTNode> const& node: sourceUnit->nodes())
if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
{
auto functions = contract->definedFunctions();
if (functions.empty())
continue;
BOOST_CHECK_EQUAL("boo(uint256,bool,bytes8,bool[2],uint256[],address,address[])", functions[0]->externalSignature());
}
}
BOOST_AUTO_TEST_CASE(enum_external_type)
{
SourceUnit const* sourceUnit = nullptr;
char const* text = R"(
// test for bug #1801
contract Test {
enum ActionChoices { GoLeft, GoRight, GoStraight, Sit }
function boo(ActionChoices enumArg) external returns (uint ret) {
ret = 5;
}
}
)";
sourceUnit = parseAndAnalyse(text);
for (ASTPointer<ASTNode> const& node: sourceUnit->nodes())
if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
{
auto functions = contract->definedFunctions();
if (functions.empty())
continue;
BOOST_CHECK_EQUAL("boo(uint8)", functions[0]->externalSignature());
}
}
BOOST_AUTO_TEST_CASE(external_structs)
{
char const* text = R"(
pragma experimental ABIEncoderV2;
contract Test {
enum ActionChoices { GoLeft, GoRight, GoStraight, Sit }
struct Simple { uint i; }
struct Nested { X[2][] a; uint y; }
struct X { bytes32 x; Test t; Simple[] s; }
function f(ActionChoices, uint, Simple calldata) external {}
function g(Test, Nested calldata) external {}
function h(function(Nested memory) external returns (uint)[] calldata) external {}
function i(Nested[] calldata) external {}
}
)";
SourceUnit const* sourceUnit = parseAndAnalyse(text);
for (ASTPointer<ASTNode> const& node: sourceUnit->nodes())
if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
{
auto functions = contract->definedFunctions();
BOOST_REQUIRE(!functions.empty());
BOOST_CHECK_EQUAL("f(uint8,uint256,(uint256))", functions[0]->externalSignature());
BOOST_CHECK_EQUAL("g(address,((bytes32,address,(uint256)[])[2][],uint256))", functions[1]->externalSignature());
BOOST_CHECK_EQUAL("h(function[])", functions[2]->externalSignature());
BOOST_CHECK_EQUAL("i(((bytes32,address,(uint256)[])[2][],uint256)[])", functions[3]->externalSignature());
}
}
BOOST_AUTO_TEST_CASE(external_structs_in_libraries)
{
char const* text = R"(
pragma experimental ABIEncoderV2;
library Test {
enum ActionChoices { GoLeft, GoRight, GoStraight, Sit }
struct Simple { uint i; }
struct Nested { X[2][] a; uint y; }
struct X { bytes32 x; Test t; Simple[] s; }
function f(ActionChoices, uint, Simple calldata) external {}
function g(Test, Nested calldata) external {}
function h(function(Nested memory) external returns (uint)[] calldata) external {}
function i(Nested[] calldata) external {}
}
)";
SourceUnit const* sourceUnit = parseAndAnalyse(text);
for (ASTPointer<ASTNode> const& node: sourceUnit->nodes())
if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
{
auto functions = contract->definedFunctions();
BOOST_REQUIRE(!functions.empty());
BOOST_CHECK_EQUAL("f(Test.ActionChoices,uint256,Test.Simple)", functions[0]->externalSignature());
BOOST_CHECK_EQUAL("g(Test,Test.Nested)", functions[1]->externalSignature());
BOOST_CHECK_EQUAL("h(function[])", functions[2]->externalSignature());
BOOST_CHECK_EQUAL("i(Test.Nested[])", functions[3]->externalSignature());
}
}
BOOST_AUTO_TEST_CASE(struct_with_mapping_in_library)
{
char const* text = R"(
library Test {
struct Nested { mapping(uint => uint)[2][] a; uint y; }
struct X { Nested n; }
function f(X storage x) external {}
}
)";
SourceUnit const* sourceUnit = parseAndAnalyse(text);
for (ASTPointer<ASTNode> const& node: sourceUnit->nodes())
if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
{
auto functions = contract->definedFunctions();
BOOST_REQUIRE(!functions.empty());
BOOST_CHECK_EQUAL("f(Test.X storage)", functions[0]->externalSignature());
}
}
BOOST_AUTO_TEST_CASE(state_variable_accessors)
{
char const* text = R"(
contract test {
function fun() public {
uint64(2);
}
uint256 public foo;
mapping(uint=>bytes4) public map;
mapping(uint=>mapping(uint=>bytes4)) public multiple_map;
}
)";
SourceUnit const* source;
ContractDefinition const* contract;
source = parseAndAnalyse(text);
BOOST_REQUIRE((contract = retrieveContractByName(*source, "test")) != nullptr);
FunctionTypePointer function = retrieveFunctionBySignature(*contract, "foo()");
BOOST_REQUIRE(function && function->hasDeclaration());
auto returnParams = function->returnParameterTypes();
BOOST_CHECK_EQUAL(returnParams.at(0)->canonicalName(), "uint256");
BOOST_CHECK(function->stateMutability() == StateMutability::View);
function = retrieveFunctionBySignature(*contract, "map(uint256)");
BOOST_REQUIRE(function && function->hasDeclaration());
auto params = function->parameterTypes();
BOOST_CHECK_EQUAL(params.at(0)->canonicalName(), "uint256");
returnParams = function->returnParameterTypes();
BOOST_CHECK_EQUAL(returnParams.at(0)->canonicalName(), "bytes4");
BOOST_CHECK(function->stateMutability() == StateMutability::View);
function = retrieveFunctionBySignature(*contract, "multiple_map(uint256,uint256)");
BOOST_REQUIRE(function && function->hasDeclaration());
params = function->parameterTypes();
BOOST_CHECK_EQUAL(params.at(0)->canonicalName(), "uint256");
BOOST_CHECK_EQUAL(params.at(1)->canonicalName(), "uint256");
returnParams = function->returnParameterTypes();
BOOST_CHECK_EQUAL(returnParams.at(0)->canonicalName(), "bytes4");
BOOST_CHECK(function->stateMutability() == StateMutability::View);
}
BOOST_AUTO_TEST_CASE(private_state_variable)
{
char const* text = R"(
contract test {
function fun() public {
uint64(2);
}
uint256 private foo;
uint256 internal bar;
}
)";
ContractDefinition const* contract;
SourceUnit const* source = parseAndAnalyse(text);
BOOST_CHECK((contract = retrieveContractByName(*source, "test")) != nullptr);
FunctionTypePointer function;
function = retrieveFunctionBySignature(*contract, "foo()");
BOOST_CHECK_MESSAGE(function == nullptr, "Accessor function of a private variable should not exist");
function = retrieveFunctionBySignature(*contract, "bar()");
BOOST_CHECK_MESSAGE(function == nullptr, "Accessor function of an internal variable should not exist");
}
BOOST_AUTO_TEST_CASE(string)
{
char const* sourceCode = R"(
contract C {
string s;
function f(string calldata x) external { s = x; }
}
)";
BOOST_CHECK_NO_THROW(parseAndAnalyse(sourceCode));
}
BOOST_AUTO_TEST_CASE(dynamic_return_types_not_possible)
{
char const* sourceCode = R"(
contract C {
function f(uint) public returns (string memory);
function g() public {
string memory x = this.f(2);
// we can assign to x but it is not usable.
bytes(x).length;
}
}
)";
if (dev::test::Options::get().evmVersion() == EVMVersion::homestead())
CHECK_ERROR(sourceCode, TypeError, "Type inaccessible dynamic type is not implicitly convertible to expected type string memory.");
else
CHECK_SUCCESS_NO_WARNINGS(sourceCode);
}
BOOST_AUTO_TEST_CASE(warn_nonpresent_pragma)
{
char const* text = R"(
contract C {}
)";
auto sourceAndError = parseAnalyseAndReturnError(text, true, false);
BOOST_REQUIRE(!sourceAndError.second.empty());
BOOST_REQUIRE(!!sourceAndError.first);
BOOST_CHECK(searchErrorMessage(*sourceAndError.second.front(), "Source file does not specify required compiler version!"));
}
BOOST_AUTO_TEST_CASE(unsatisfied_version)
{
char const* text = R"(
pragma solidity ^99.99.0;
)";
auto sourceAndError = parseAnalyseAndReturnError(text, false, false, false);
BOOST_REQUIRE(!sourceAndError.second.empty());
BOOST_REQUIRE(!!sourceAndError.first);
BOOST_CHECK(sourceAndError.second.front()->type() == Error::Type::SyntaxError);
BOOST_CHECK(searchErrorMessage(*sourceAndError.second.front(), "Source file requires different compiler version"));
}
BOOST_AUTO_TEST_CASE(returndatasize_as_variable)
{
char const* text = R"(
contract C { function f() public pure { uint returndatasize; returndatasize; assembly { pop(returndatasize()) }}}
)";
vector<pair<Error::Type, std::string>> expectations(vector<pair<Error::Type, std::string>>{
{Error::Type::Warning, "Variable is shadowed in inline assembly by an instruction of the same name"}
});
if (!dev::test::Options::get().evmVersion().supportsReturndata())
expectations.emplace_back(make_pair(Error::Type::Warning, std::string("\"returndatasize\" instruction is only available for Byzantium-compatible VMs.")));
CHECK_ALLOW_MULTI(text, expectations);
}
BOOST_AUTO_TEST_CASE(create2_as_variable)
{
char const* text = R"(
contract c { function f() public { uint create2; create2; assembly { pop(create2(0, 0, 0, 0)) } }}
)";
// This needs special treatment, because the message mentions the EVM version,
// so cannot be run via isoltest.
vector<pair<Error::Type, std::string>> expectations(vector<pair<Error::Type, std::string>>{
{Error::Type::Warning, "Variable is shadowed in inline assembly by an instruction of the same name"}
});
if (!dev::test::Options::get().evmVersion().hasCreate2())
expectations.emplace_back(make_pair(Error::Type::Warning, std::string("\"create2\" instruction is only available for Constantinople-compatible VMs.")));
CHECK_ALLOW_MULTI(text, expectations);
}
BOOST_AUTO_TEST_CASE(extcodehash_as_variable)
{
char const* text = R"(
contract c { function f() public view { uint extcodehash; extcodehash; assembly { pop(extcodehash(0)) } }}
)";
// This needs special treatment, because the message mentions the EVM version,
// so cannot be run via isoltest.
CHECK_ALLOW_MULTI(text, (std::vector<std::pair<Error::Type, std::string>>{
{Error::Type::Warning, "Variable is shadowed in inline assembly by an instruction of the same name"},
{Error::Type::Warning, "The \"extcodehash\" instruction is not supported by the VM version"},
}));
}
BOOST_AUTO_TEST_CASE(getter_is_memory_type)
{
char const* text = R"(
contract C {
struct S { string m; }
string[] public x;
S[] public y;
}
)";
CHECK_SUCCESS_NO_WARNINGS(text);
// Check that the getters return a memory strings, not a storage strings.
ContractDefinition const& c = dynamic_cast<ContractDefinition const&>(*m_compiler.ast("").nodes().at(1));
BOOST_CHECK(c.interfaceFunctions().size() == 2);
for (auto const& f: c.interfaceFunctions())
{
auto const& retType = f.second->returnParameterTypes().at(0);
BOOST_CHECK(retType->dataStoredIn(DataLocation::Memory));
}
}
BOOST_AUTO_TEST_CASE(address_staticcall)
{
char const* sourceCode = R"(
contract C {
function f() public view returns(bool) {
(bool success,) = address(0x4242).staticcall("");
return success;
}
}
)";
if (dev::test::Options::get().evmVersion().hasStaticCall())
CHECK_SUCCESS_NO_WARNINGS(sourceCode);
else
CHECK_ERROR(sourceCode, TypeError, "\"staticcall\" is not supported by the VM version.");
}
BOOST_AUTO_TEST_CASE(address_staticcall_value)
{
if (dev::test::Options::get().evmVersion().hasStaticCall())
{
char const* sourceCode = R"(
contract C {
function f() public view {
address(0x4242).staticcall.value;
}
}
)";
CHECK_ERROR(sourceCode, TypeError, "Member \"value\" not found or not visible after argument-dependent lookup");
}
}
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()
}
}
} // end namespaces
