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/*
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
#pragma once
#include <libyul/optimiser/ASTWalker.h>
namespace solidity::yul
{
/**
* Resolves references to user-defined functions in function calls.
* Assumes the code is correct, i.e. does not check for references to be valid or unique.
*
* Be careful not to iterate over the result - it is not deterministic.
*/
class FunctionReferenceResolver: private ASTWalker
{
public:
explicit FunctionReferenceResolver(Block const& _ast);
std::map<FunctionCall const*, FunctionDefinition const*> const& references() const { return m_functionReferences; }
private:
using ASTWalker::operator();
void operator()(FunctionCall const& _functionCall) override;
void operator()(Block const& _block) override;
std::map<FunctionCall const*, FunctionDefinition const*> m_functionReferences;
std::vector<std::map<YulString, FunctionDefinition const*>> m_scopes;
};
}