mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
89 lines
3.1 KiB
C++
89 lines
3.1 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 can compare ASTs for equality on a syntactic basis.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <libyul/ASTForward.h>
|
|
#include <libyul/YulString.h>
|
|
|
|
#include <map>
|
|
#include <type_traits>
|
|
|
|
namespace solidity::yul
|
|
{
|
|
|
|
|
|
/**
|
|
* Component that can compare ASTs for equality on a syntactic basis.
|
|
* Ignores source locations and allows for different variable names but requires exact matches otherwise.
|
|
*
|
|
* Prerequisite: Disambiguator (unless only expressions are compared)
|
|
*/
|
|
class SyntacticallyEqual
|
|
{
|
|
public:
|
|
bool operator()(Expression const& _lhs, Expression const& _rhs);
|
|
bool operator()(Statement const& _lhs, Statement const& _rhs);
|
|
|
|
bool expressionEqual(FunctionCall const& _lhs, FunctionCall const& _rhs);
|
|
bool expressionEqual(Identifier const& _lhs, Identifier const& _rhs);
|
|
bool expressionEqual(Literal const& _lhs, Literal const& _rhs);
|
|
|
|
bool statementEqual(ExpressionStatement const& _lhs, ExpressionStatement const& _rhs);
|
|
bool statementEqual(Assignment const& _lhs, Assignment const& _rhs);
|
|
bool statementEqual(VariableDeclaration const& _lhs, VariableDeclaration const& _rhs);
|
|
bool statementEqual(FunctionDefinition const& _lhs, FunctionDefinition const& _rhs);
|
|
bool statementEqual(If const& _lhs, If const& _rhs);
|
|
bool statementEqual(Switch const& _lhs, Switch const& _rhs);
|
|
bool switchCaseEqual(Case const& _lhs, Case const& _rhs);
|
|
bool statementEqual(ForLoop const& _lhs, ForLoop const& _rhs);
|
|
bool statementEqual(Break const&, Break const&) { return true; }
|
|
bool statementEqual(Continue const&, Continue const&) { return true; }
|
|
bool statementEqual(Leave const&, Leave const&) { return true; }
|
|
bool statementEqual(Block const& _lhs, Block const& _rhs);
|
|
private:
|
|
bool visitDeclaration(TypedName const& _lhs, TypedName const& _rhs);
|
|
|
|
template<typename U, typename V>
|
|
bool expressionEqual(U const&, V const&, std::enable_if_t<!std::is_same<U, V>::value>* = nullptr)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
template<typename U, typename V>
|
|
bool statementEqual(U const&, V const&, std::enable_if_t<!std::is_same<U, V>::value>* = nullptr)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
template<typename T, bool (SyntacticallyEqual::*CompareMember)(T const&, T const&)>
|
|
bool compareUniquePtr(std::unique_ptr<T> const& _lhs, std::unique_ptr<T> const& _rhs)
|
|
{
|
|
return (_lhs == _rhs) || (_lhs && _rhs && (this->*CompareMember)(*_lhs, *_rhs));
|
|
}
|
|
|
|
std::size_t m_idsUsed = 0;
|
|
std::map<YulString, std::size_t> m_identifiersLHS;
|
|
std::map<YulString, std::size_t> m_identifiersRHS;
|
|
};
|
|
|
|
}
|