mirror of
				https://github.com/ethereum/solidity
				synced 2023-10-03 13:03:40 +00:00 
			
		
		
		
	
		
			
				
	
	
		
			121 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			121 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
/*
 | 
						|
    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/>.
 | 
						|
*/
 | 
						|
/**
 | 
						|
 * Unit tests for the view and pure checker.
 | 
						|
 */
 | 
						|
 | 
						|
#include <test/libsolidity/AnalysisFramework.h>
 | 
						|
 | 
						|
#include <test/Options.h>
 | 
						|
 | 
						|
#include <boost/test/unit_test.hpp>
 | 
						|
 | 
						|
#include <string>
 | 
						|
#include <tuple>
 | 
						|
 | 
						|
using namespace std;
 | 
						|
 | 
						|
namespace dev
 | 
						|
{
 | 
						|
namespace solidity
 | 
						|
{
 | 
						|
namespace test
 | 
						|
{
 | 
						|
 | 
						|
BOOST_FIXTURE_TEST_SUITE(ViewPureChecker, AnalysisFramework)
 | 
						|
 | 
						|
BOOST_AUTO_TEST_CASE(environment_access)
 | 
						|
{
 | 
						|
	vector<string> view{
 | 
						|
		"block.coinbase",
 | 
						|
		"block.timestamp",
 | 
						|
		"block.blockhash(7)",
 | 
						|
		"block.difficulty",
 | 
						|
		"block.number",
 | 
						|
		"block.gaslimit",
 | 
						|
		"blockhash(7)",
 | 
						|
		"gasleft()",
 | 
						|
		"msg.gas",
 | 
						|
		"msg.value",
 | 
						|
		"msg.sender",
 | 
						|
		"tx.origin",
 | 
						|
		"tx.gasprice",
 | 
						|
		"this",
 | 
						|
		"address(1).balance"
 | 
						|
	};
 | 
						|
	// ``block.blockhash`` and ``blockhash`` are tested seperately below because their usage will
 | 
						|
	// produce warnings that can't be handled in a generic way.
 | 
						|
	vector<string> pure{
 | 
						|
		"msg.data",
 | 
						|
		"msg.data[0]",
 | 
						|
		"msg.sig",
 | 
						|
		"msg",
 | 
						|
		"block",
 | 
						|
		"tx"
 | 
						|
	};
 | 
						|
	for (string const& x: view)
 | 
						|
	{
 | 
						|
		CHECK_ERROR(
 | 
						|
			"contract C { function f() pure public { " + x + "; } }",
 | 
						|
			TypeError,
 | 
						|
			"Function declared as pure, but this expression (potentially) reads from the environment or state and thus requires \"view\""
 | 
						|
		);
 | 
						|
	}
 | 
						|
	for (string const& x: pure)
 | 
						|
	{
 | 
						|
		CHECK_WARNING(
 | 
						|
			"contract C { function f() view public { " + x + "; } }",
 | 
						|
			"Function state mutability can be restricted to pure"
 | 
						|
		);
 | 
						|
	}
 | 
						|
 | 
						|
	CHECK_WARNING_ALLOW_MULTI(
 | 
						|
		"contract C { function f() view public { blockhash; } }",
 | 
						|
		(std::vector<std::string>{
 | 
						|
			"Function state mutability can be restricted to pure",
 | 
						|
			"Statement has no effect."
 | 
						|
	}));
 | 
						|
 | 
						|
	CHECK_WARNING_ALLOW_MULTI(
 | 
						|
		"contract C { function f() view public { block.blockhash; } }",
 | 
						|
		(std::vector<std::string>{
 | 
						|
			"Function state mutability can be restricted to pure",
 | 
						|
			"\"block.blockhash()\" has been deprecated in favor of \"blockhash()\""
 | 
						|
	}));
 | 
						|
}
 | 
						|
 | 
						|
BOOST_AUTO_TEST_CASE(assembly_staticcall)
 | 
						|
{
 | 
						|
	string text = R"(
 | 
						|
		contract C {
 | 
						|
			function i() view public {
 | 
						|
				assembly { pop(staticcall(gas, 1, 2, 3, 4, 5)) }
 | 
						|
			}
 | 
						|
		}
 | 
						|
	)";
 | 
						|
	if (!dev::test::Options::get().evmVersion().hasStaticCall())
 | 
						|
		CHECK_WARNING(text, "\"staticcall\" instruction is only available for Byzantium-compatible");
 | 
						|
	else
 | 
						|
		CHECK_SUCCESS_NO_WARNINGS(text);
 | 
						|
}
 | 
						|
 | 
						|
BOOST_AUTO_TEST_SUITE_END()
 | 
						|
 | 
						|
}
 | 
						|
}
 | 
						|
}
 |