mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
91 lines
2.9 KiB
C++
91 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/>.
|
|
*/
|
|
/**
|
|
* Yul dialects for EVM.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <libyul/Dialect.h>
|
|
|
|
#include <libyul/backends/evm/AbstractAssembly.h>
|
|
#include <liblangutil/EVMVersion.h>
|
|
|
|
#include <map>
|
|
|
|
namespace yul
|
|
{
|
|
|
|
class YulString;
|
|
using Type = YulString;
|
|
struct FunctionCall;
|
|
struct Object;
|
|
|
|
struct BuiltinFunctionForEVM: BuiltinFunction
|
|
{
|
|
/// Function to generate code for the given function call and append it to the abstract
|
|
/// assembly. The third parameter is called to visit (and generate code for) the arguments
|
|
/// from right to left.
|
|
std::function<void(FunctionCall const&, AbstractAssembly&, std::function<void()>)> generateCode;
|
|
};
|
|
|
|
/**
|
|
* Yul dialect for EVM as a backend.
|
|
* The main difference is that the builtin functions take an AbstractAssembly for the
|
|
* code generation.
|
|
*/
|
|
struct EVMDialect: public Dialect
|
|
{
|
|
EVMDialect(AsmFlavour _flavour, bool _objectAccess, langutil::EVMVersion _evmVersion);
|
|
|
|
/// @returns the builtin function of the given name or a nullptr if it is not a builtin function.
|
|
BuiltinFunctionForEVM const* builtin(YulString _name) const override;
|
|
|
|
static std::shared_ptr<EVMDialect> looseAssemblyForEVM(langutil::EVMVersion _version);
|
|
static std::shared_ptr<EVMDialect> strictAssemblyForEVM(langutil::EVMVersion _version);
|
|
static std::shared_ptr<EVMDialect> strictAssemblyForEVMObjects(langutil::EVMVersion _version);
|
|
static std::shared_ptr<EVMDialect> yulForEVM(langutil::EVMVersion _version);
|
|
|
|
langutil::EVMVersion evmVersion() const { return m_evmVersion; }
|
|
|
|
bool providesObjectAccess() const { return m_objectAccess; }
|
|
|
|
/// Sets the mapping of current sub assembly IDs. Used during code generation.
|
|
void setSubIDs(std::map<YulString, AbstractAssembly::SubID> _subIDs);
|
|
/// Sets the current object. Used during code generation.
|
|
void setCurrentObject(Object const* _object);
|
|
|
|
protected:
|
|
void addFunction(
|
|
std::string _name,
|
|
size_t _params,
|
|
size_t _returns,
|
|
bool _movable,
|
|
bool _literalArguments,
|
|
std::function<void(FunctionCall const&, AbstractAssembly&, std::function<void()>)> _generateCode
|
|
);
|
|
|
|
bool m_objectAccess;
|
|
langutil::EVMVersion m_evmVersion;
|
|
Object const* m_currentObject = nullptr;
|
|
/// Mapping from named objects to abstract assembly sub IDs.
|
|
std::map<YulString, AbstractAssembly::SubID> m_subIDs;
|
|
std::map<YulString, BuiltinFunctionForEVM> m_functions;
|
|
};
|
|
|
|
}
|