mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
677 lines
19 KiB
C++
677 lines
19 KiB
C++
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @author Christian <c@ethdev.com>
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* @date 2014
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* Unit tests for the name and type resolution of the solidity parser.
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*/
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#include <string>
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#include <libdevcore/Log.h>
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#include <libdevcrypto/SHA3.h>
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#include <libsolidity/Scanner.h>
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#include <libsolidity/Parser.h>
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#include <libsolidity/NameAndTypeResolver.h>
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#include <libsolidity/Exceptions.h>
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#include <boost/test/unit_test.hpp>
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using namespace std;
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namespace dev
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{
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namespace solidity
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{
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namespace test
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{
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namespace
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{
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ASTPointer<SourceUnit> parseTextAndResolveNames(std::string const& _source)
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{
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Parser parser;
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ASTPointer<SourceUnit> sourceUnit = parser.parse(std::make_shared<Scanner>(CharStream(_source)));
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NameAndTypeResolver resolver({});
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resolver.registerDeclarations(*sourceUnit);
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for (ASTPointer<ASTNode> const& node: sourceUnit->getNodes())
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if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
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resolver.resolveNamesAndTypes(*contract);
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for (ASTPointer<ASTNode> const& node: sourceUnit->getNodes())
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if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
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resolver.checkTypeRequirements(*contract);
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return sourceUnit;
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}
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ASTPointer<SourceUnit> parseTextAndResolveNamesWithChecks(std::string const& _source)
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{
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Parser parser;
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ASTPointer<SourceUnit> sourceUnit;
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try
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{
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sourceUnit = parser.parse(std::make_shared<Scanner>(CharStream(_source)));
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NameAndTypeResolver resolver({});
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resolver.registerDeclarations(*sourceUnit);
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for (ASTPointer<ASTNode> const& node: sourceUnit->getNodes())
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if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
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resolver.resolveNamesAndTypes(*contract);
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for (ASTPointer<ASTNode> const& node: sourceUnit->getNodes())
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if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
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resolver.checkTypeRequirements(*contract);
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}
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catch(boost::exception const& _e)
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{
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auto msg = std::string("Parsing text and resolving nanes failed with: \n") + boost::diagnostic_information(_e);
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BOOST_FAIL(msg);
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}
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return sourceUnit;
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}
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static ContractDefinition const* retrieveContract(ASTPointer<SourceUnit> _source, unsigned index)
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{
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ContractDefinition* contract;
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unsigned counter = 0;
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for (ASTPointer<ASTNode> const& node: _source->getNodes())
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if ((contract = dynamic_cast<ContractDefinition*>(node.get())) && counter == index)
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return contract;
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return NULL;
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}
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static FunctionDescription const& retrieveFunctionBySignature(ContractDefinition const* _contract,
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std::string const& _signature)
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{
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FixedHash<4> hash(dev::sha3(_signature));
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return _contract->getInterfaceFunctions()[hash];
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}
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}
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BOOST_AUTO_TEST_SUITE(SolidityNameAndTypeResolution)
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BOOST_AUTO_TEST_CASE(smoke_test)
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{
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char const* text = "contract test {\n"
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" uint256 stateVariable1;\n"
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" function fun(uint256 arg1) { var x; uint256 y; }"
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"}\n";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNamesWithChecks(text));
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}
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BOOST_AUTO_TEST_CASE(double_stateVariable_declaration)
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{
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char const* text = "contract test {\n"
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" uint256 variable;\n"
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" uint128 variable;\n"
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"}\n";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), DeclarationError);
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}
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BOOST_AUTO_TEST_CASE(double_function_declaration)
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{
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char const* text = "contract test {\n"
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" function fun() { var x; }\n"
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" function fun() { var x; }\n"
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"}\n";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), DeclarationError);
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}
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BOOST_AUTO_TEST_CASE(double_variable_declaration)
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{
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char const* text = "contract test {\n"
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" function f() { uint256 x; if (true) { uint256 x; } }\n"
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"}\n";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), DeclarationError);
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}
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BOOST_AUTO_TEST_CASE(name_shadowing)
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{
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char const* text = "contract test {\n"
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" uint256 variable;\n"
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" function f() { uint32 variable ; }"
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"}\n";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(name_references)
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{
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char const* text = "contract test {\n"
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" uint256 variable;\n"
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" function f(uint256 arg) returns (uint out) { f(variable); test; out; }"
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"}\n";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(undeclared_name)
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{
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char const* text = "contract test {\n"
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" uint256 variable;\n"
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" function f(uint256 arg) { f(notfound); }"
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"}\n";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), DeclarationError);
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}
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BOOST_AUTO_TEST_CASE(reference_to_later_declaration)
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{
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char const* text = "contract test {\n"
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" function g() { f(); }"
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" function f() { }"
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"}\n";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(struct_definition_directly_recursive)
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{
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char const* text = "contract test {\n"
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" struct MyStructName {\n"
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" address addr;\n"
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" MyStructName x;\n"
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" }\n"
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"}\n";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), ParserError);
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}
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BOOST_AUTO_TEST_CASE(struct_definition_indirectly_recursive)
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{
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char const* text = "contract test {\n"
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" struct MyStructName1 {\n"
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" address addr;\n"
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" uint256 count;\n"
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" MyStructName2 x;\n"
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" }\n"
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" struct MyStructName2 {\n"
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" MyStructName1 x;\n"
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" }\n"
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"}\n";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), ParserError);
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}
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BOOST_AUTO_TEST_CASE(struct_definition_recursion_via_mapping)
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{
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char const* text = "contract test {\n"
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" struct MyStructName1 {\n"
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" address addr;\n"
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" uint256 count;\n"
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" mapping(uint => MyStructName1) x;\n"
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" }\n"
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"}\n";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(type_inference_smoke_test)
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{
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char const* text = "contract test {\n"
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" function f(uint256 arg1, uint32 arg2) returns (bool ret) { var x = arg1 + arg2 == 8; ret = x; }"
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"}\n";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(type_checking_return)
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{
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char const* text = "contract test {\n"
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" function f() returns (bool r) { return 1 >= 2; }"
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"}\n";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(type_checking_return_wrong_number)
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{
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char const* text = "contract test {\n"
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" function f() returns (bool r1, bool r2) { return 1 >= 2; }"
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"}\n";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
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}
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BOOST_AUTO_TEST_CASE(type_checking_return_wrong_type)
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{
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char const* text = "contract test {\n"
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" function f() returns (uint256 r) { return 1 >= 2; }"
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"}\n";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
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}
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BOOST_AUTO_TEST_CASE(type_checking_function_call)
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{
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char const* text = "contract test {\n"
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" function f() returns (bool r) { return g(12, true) == 3; }\n"
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" function g(uint256 a, bool b) returns (uint256 r) { }\n"
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"}\n";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(type_conversion_for_comparison)
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{
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char const* text = "contract test {\n"
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" function f() { uint32(2) == int64(2); }"
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"}\n";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(type_conversion_for_comparison_invalid)
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{
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char const* text = "contract test {\n"
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" function f() { int32(2) == uint64(2); }"
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"}\n";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
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}
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BOOST_AUTO_TEST_CASE(type_inference_explicit_conversion)
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{
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char const* text = "contract test {\n"
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" function f() returns (int256 r) { var x = int256(uint32(2)); return x; }"
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"}\n";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(large_string_literal)
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{
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char const* text = "contract test {\n"
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" function f() { var x = \"123456789012345678901234567890123\"; }"
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"}\n";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
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}
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BOOST_AUTO_TEST_CASE(balance)
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{
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char const* text = "contract test {\n"
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" function fun() {\n"
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" uint256 x = address(0).balance;\n"
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" }\n"
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"}\n";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(balance_invalid)
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{
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char const* text = "contract test {\n"
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" function fun() {\n"
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" address(0).balance = 7;\n"
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" }\n"
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"}\n";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
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}
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BOOST_AUTO_TEST_CASE(assignment_to_mapping)
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{
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char const* text = "contract test {\n"
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" struct str {\n"
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" mapping(uint=>uint) map;\n"
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" }\n"
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" str data;"
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" function fun() {\n"
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" var a = data.map;\n"
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" data.map = a;\n"
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" }\n"
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"}\n";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
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}
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BOOST_AUTO_TEST_CASE(assignment_to_struct)
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{
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char const* text = "contract test {\n"
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" struct str {\n"
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" mapping(uint=>uint) map;\n"
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" }\n"
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" str data;"
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" function fun() {\n"
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" var a = data;\n"
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" data = a;\n"
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" }\n"
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"}\n";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
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}
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BOOST_AUTO_TEST_CASE(returns_in_constructor)
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{
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char const* text = "contract test {\n"
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" function test() returns (uint a) {\n"
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" }\n"
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"}\n";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
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}
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BOOST_AUTO_TEST_CASE(forward_function_reference)
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{
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char const* text = "contract First {\n"
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" function fun() returns (bool ret) {\n"
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" return Second(1).fun(1, true, 3) > 0;\n"
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" }\n"
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"}\n"
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"contract Second {\n"
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" function fun(uint a, bool b, uint c) returns (uint ret) {\n"
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" if (First(2).fun() == true) return 1;\n"
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" }\n"
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"}\n";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(comparison_bitop_precedence)
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{
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char const* text = "contract First {\n"
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" function fun() returns (bool ret) {\n"
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" return 1 & 2 == 8 & 9 && 1 ^ 2 < 4 | 6;\n"
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" }\n"
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"}\n";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(function_canonical_signature)
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{
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ASTPointer<SourceUnit> sourceUnit;
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char const* text = "contract Test {\n"
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" function foo(uint256 arg1, uint64 arg2, bool arg3) returns (uint256 ret) {\n"
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" ret = arg1 + arg2;\n"
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" }\n"
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"}\n";
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BOOST_CHECK_NO_THROW(sourceUnit = parseTextAndResolveNames(text));
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for (ASTPointer<ASTNode> const& node: sourceUnit->getNodes())
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if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
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{
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auto functions = contract->getDefinedFunctions();
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BOOST_CHECK_EQUAL("foo(uint256,uint64,bool)", functions[0]->getCanonicalSignature());
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}
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}
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BOOST_AUTO_TEST_CASE(function_canonical_signature_type_aliases)
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{
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ASTPointer<SourceUnit> sourceUnit;
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char const* text = "contract Test {\n"
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" function boo(uint arg1, hash arg2, address arg3) returns (uint ret) {\n"
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" ret = 5;\n"
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" }\n"
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"}\n";
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BOOST_CHECK_NO_THROW(sourceUnit = parseTextAndResolveNames(text));
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for (ASTPointer<ASTNode> const& node: sourceUnit->getNodes())
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if (ContractDefinition* contract = dynamic_cast<ContractDefinition*>(node.get()))
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{
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auto functions = contract->getDefinedFunctions();
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BOOST_CHECK_EQUAL("boo(uint256,hash256,address)", functions[0]->getCanonicalSignature());
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}
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}
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BOOST_AUTO_TEST_CASE(hash_collision_in_interface)
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{
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char const* text = "contract test {\n"
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" function gsf() {\n"
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" }\n"
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" function tgeo() {\n"
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" }\n"
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"}\n";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
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}
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BOOST_AUTO_TEST_CASE(inheritance_basic)
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{
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char const* text = R"(
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contract base { uint baseMember; struct BaseType { uint element; } }
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contract derived is base {
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BaseType data;
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function f() { baseMember = 7; }
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}
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)";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(inheritance_diamond_basic)
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{
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char const* text = R"(
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contract root { function rootFunction() {} }
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contract inter1 is root { function f() {} }
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contract inter2 is root { function f() {} }
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contract derived is root, inter2, inter1 {
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function g() { f(); rootFunction(); }
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}
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)";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(cyclic_inheritance)
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{
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char const* text = R"(
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contract A is B { }
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contract B is A { }
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)";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
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}
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BOOST_AUTO_TEST_CASE(illegal_override_direct)
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{
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char const* text = R"(
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contract B { function f() {} }
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contract C is B { function f(uint i) {} }
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)";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
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}
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BOOST_AUTO_TEST_CASE(illegal_override_indirect)
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{
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char const* text = R"(
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contract A { function f(uint a) {} }
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contract B { function f() {} }
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contract C is A, B { }
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)";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
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}
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BOOST_AUTO_TEST_CASE(complex_inheritance)
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{
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char const* text = R"(
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contract A { function f() { uint8 x = C(0).g(); } }
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contract B { function f() {} function g() returns (uint8 r) {} }
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contract C is A, B { }
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)";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(constructor_visibility)
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{
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// The constructor of a base class should not be visible in the derived class
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char const* text = R"(
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contract A { function A() { } }
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contract B is A { function f() { A x = A(0); } }
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)";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(overriding_constructor)
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{
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// It is fine to "override" constructor of a base class since it is invisible
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char const* text = R"(
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contract A { function A() { } }
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contract B is A { function A() returns (uint8 r) {} }
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)";
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BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
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}
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BOOST_AUTO_TEST_CASE(missing_base_constructor_arguments)
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{
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char const* text = R"(
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contract A { function A(uint a) { } }
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contract B is A { }
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)";
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BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
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}
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|
BOOST_AUTO_TEST_CASE(base_constructor_arguments_override)
|
|
{
|
|
char const* text = R"(
|
|
contract A { function A(uint a) { } }
|
|
contract B is A { }
|
|
)";
|
|
BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE(implicit_derived_to_base_conversion)
|
|
{
|
|
char const* text = R"(
|
|
contract A { }
|
|
contract B is A {
|
|
function f() { A a = B(1); }
|
|
}
|
|
)";
|
|
BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE(implicit_base_to_derived_conversion)
|
|
{
|
|
char const* text = R"(
|
|
contract A { }
|
|
contract B is A {
|
|
function f() { B b = A(1); }
|
|
}
|
|
)";
|
|
BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE(function_modifier_invocation)
|
|
{
|
|
char const* text = R"(
|
|
contract B {
|
|
function f() mod1(2, true) mod2("0123456") { }
|
|
modifier mod1(uint a, bool b) { if (b) _ }
|
|
modifier mod2(string7 a) { while (a == "1234567") _ }
|
|
}
|
|
)";
|
|
BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE(invalid_function_modifier_type)
|
|
{
|
|
char const* text = R"(
|
|
contract B {
|
|
function f() mod1(true) { }
|
|
modifier mod1(uint a) { if (a > 0) _ }
|
|
}
|
|
)";
|
|
BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE(function_modifier_invocation_parameters)
|
|
{
|
|
char const* text = R"(
|
|
contract B {
|
|
function f(uint8 a) mod1(a, true) mod2(r) returns (string7 r) { }
|
|
modifier mod1(uint a, bool b) { if (b) _ }
|
|
modifier mod2(string7 a) { while (a == "1234567") _ }
|
|
}
|
|
)";
|
|
BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE(function_modifier_invocation_local_variables)
|
|
{
|
|
char const* text = R"(
|
|
contract B {
|
|
function f() mod(x) { uint x = 7; }
|
|
modifier mod(uint a) { if (a > 0) _ }
|
|
}
|
|
)";
|
|
BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE(legal_modifier_override)
|
|
{
|
|
char const* text = R"(
|
|
contract A { modifier mod(uint a) {} }
|
|
contract B is A { modifier mod(uint a) {} }
|
|
)";
|
|
BOOST_CHECK_NO_THROW(parseTextAndResolveNames(text));
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE(illegal_modifier_override)
|
|
{
|
|
char const* text = R"(
|
|
contract A { modifier mod(uint a) {} }
|
|
contract B is A { modifier mod(uint8 a) {} }
|
|
)";
|
|
BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE(modifier_overrides_function)
|
|
{
|
|
char const* text = R"(
|
|
contract A { modifier mod(uint a) {} }
|
|
contract B is A { function mod(uint a) {} }
|
|
)";
|
|
BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE(function_overrides_modifier)
|
|
{
|
|
char const* text = R"(
|
|
contract A { function mod(uint a) {} }
|
|
contract B is A { modifier mod(uint a) {} }
|
|
)";
|
|
BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE(modifier_returns_value)
|
|
{
|
|
char const* text = R"(
|
|
contract A {
|
|
function f(uint a) mod(2) returns (uint r) {}
|
|
modifier mod(uint a) { return 7; }
|
|
}
|
|
)";
|
|
BOOST_CHECK_THROW(parseTextAndResolveNames(text), TypeError);
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE(state_variable_accessors)
|
|
{
|
|
char const* text = "contract test {\n"
|
|
" function fun() {\n"
|
|
" uint64(2);\n"
|
|
" }\n"
|
|
"uint256 foo;\n"
|
|
"}\n";
|
|
|
|
ASTPointer<SourceUnit> source;
|
|
ContractDefinition const* contract;
|
|
BOOST_CHECK_NO_THROW(source = parseTextAndResolveNamesWithChecks(text));
|
|
BOOST_CHECK((contract = retrieveContract(source, 0)) != nullptr);
|
|
FunctionDescription function = retrieveFunctionBySignature(contract, "foo()");
|
|
BOOST_CHECK_MESSAGE(function.getDeclaration() != nullptr, "Could not find the accessor function");
|
|
auto returnParams = function.getReturnParameters();
|
|
BOOST_CHECK_EQUAL(returnParams.at(0).getType(), "uint256");
|
|
BOOST_CHECK(function.isConstant());
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE(private_state_variable)
|
|
{
|
|
char const* text = "contract test {\n"
|
|
" function fun() {\n"
|
|
" uint64(2);\n"
|
|
" }\n"
|
|
"private:\n"
|
|
"uint256 foo;\n"
|
|
"}\n";
|
|
|
|
ASTPointer<SourceUnit> source;
|
|
ContractDefinition const* contract;
|
|
BOOST_CHECK_NO_THROW(source = parseTextAndResolveNamesWithChecks(text));
|
|
BOOST_CHECK((contract = retrieveContract(source, 0)) != nullptr);
|
|
FunctionDescription function = retrieveFunctionBySignature(contract, "foo()");
|
|
BOOST_CHECK_MESSAGE(function.getDeclaration() == nullptr, "Accessor function of a private variable should not exist");
|
|
}
|
|
|
|
BOOST_AUTO_TEST_SUITE_END()
|
|
|
|
}
|
|
}
|
|
} // end namespaces
|
|
|