mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
72 lines
2.4 KiB
C++
72 lines
2.4 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/>.
|
|
*/
|
|
// SPDX-License-Identifier: GPL-3.0
|
|
/**
|
|
* Component that verifies overloads, abstract contracts, function clashes and others
|
|
* checks at contract or function level.
|
|
*/
|
|
|
|
#include <libsolidity/analysis/PostTypeContractLevelChecker.h>
|
|
|
|
#include <libsolidity/ast/AST.h>
|
|
#include <libsolutil/FunctionSelector.h>
|
|
#include <liblangutil/ErrorReporter.h>
|
|
|
|
using namespace solidity;
|
|
using namespace solidity::langutil;
|
|
using namespace solidity::frontend;
|
|
|
|
bool PostTypeContractLevelChecker::check(SourceUnit const& _sourceUnit)
|
|
{
|
|
bool noErrors = true;
|
|
for (auto* contract: ASTNode::filteredNodes<ContractDefinition>(_sourceUnit.nodes()))
|
|
if (!check(*contract))
|
|
noErrors = false;
|
|
return noErrors;
|
|
}
|
|
|
|
bool PostTypeContractLevelChecker::check(ContractDefinition const& _contract)
|
|
{
|
|
solAssert(
|
|
_contract.annotation().creationCallGraph.set() &&
|
|
_contract.annotation().deployedCallGraph.set(),
|
|
""
|
|
);
|
|
|
|
std::map<uint32_t, std::map<std::string, SourceLocation>> errorHashes;
|
|
for (ErrorDefinition const* error: _contract.interfaceErrors())
|
|
{
|
|
std::string signature = error->functionType(true)->externalSignature();
|
|
uint32_t hash = util::selectorFromSignatureU32(signature);
|
|
// Fail if there is a different signature for the same hash.
|
|
if (!errorHashes[hash].empty() && !errorHashes[hash].count(signature))
|
|
{
|
|
SourceLocation& otherLocation = errorHashes[hash].begin()->second;
|
|
m_errorReporter.typeError(
|
|
4883_error,
|
|
error->nameLocation(),
|
|
SecondarySourceLocation{}.append("This error has a different signature but the same hash: ", otherLocation),
|
|
"Error signature hash collision for " + error->functionType(true)->externalSignature()
|
|
);
|
|
}
|
|
else
|
|
errorHashes[hash][signature] = error->location();
|
|
}
|
|
|
|
return !Error::containsErrors(m_errorReporter.errors());
|
|
}
|