mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
95 lines
3.2 KiB
C++
95 lines
3.2 KiB
C++
/*
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This file is part of solidity.
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solidity is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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solidity is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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// SPDX-License-Identifier: GPL-3.0
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/**
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* Adaptor between the abstract assembly and eth assembly.
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*/
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#pragma once
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#include <libyul/backends/evm/AbstractAssembly.h>
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#include <libyul/AsmAnalysis.h>
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#include <liblangutil/SourceLocation.h>
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#include <functional>
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namespace solidity::evmasm
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{
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class Assembly;
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class AssemblyItem;
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}
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namespace solidity::yul
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{
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struct Block;
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class EthAssemblyAdapter: public AbstractAssembly
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{
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public:
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explicit EthAssemblyAdapter(evmasm::Assembly& _assembly);
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void setSourceLocation(langutil::SourceLocation const& _location) override;
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int stackHeight() const override;
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void setStackHeight(int height) override;
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void appendInstruction(evmasm::Instruction _instruction) override;
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void appendConstant(u256 const& _constant) override;
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void appendLabel(LabelID _labelId) override;
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void appendLabelReference(LabelID _labelId) override;
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size_t newLabelId() override;
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size_t namedLabel(std::string const& _name) override;
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void appendLinkerSymbol(std::string const& _linkerSymbol) override;
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void appendJump(int _stackDiffAfter, JumpType _jumpType) override;
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void appendJumpTo(LabelID _labelId, int _stackDiffAfter, JumpType _jumpType) override;
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void appendJumpToIf(LabelID _labelId, JumpType _jumpType) override;
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void appendBeginsub(LabelID, int) override;
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void appendJumpsub(LabelID, int, int) override;
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void appendReturnsub(int, int) override;
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void appendAssemblySize() override;
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std::pair<std::shared_ptr<AbstractAssembly>, SubID> createSubAssembly() override;
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void appendDataOffset(std::vector<SubID> const& _subPath) override;
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void appendDataSize(std::vector<SubID> const& _subPath) override;
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SubID appendData(bytes const& _data) override;
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void appendImmutable(std::string const& _identifier) override;
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void appendImmutableAssignment(std::string const& _identifier) override;
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void markAsInvalid() override;
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private:
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static LabelID assemblyTagToIdentifier(evmasm::AssemblyItem const& _tag);
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void appendJumpInstruction(evmasm::Instruction _instruction, JumpType _jumpType);
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evmasm::Assembly& m_assembly;
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std::map<SubID, u256> m_dataHashBySubId;
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size_t m_nextDataCounter = std::numeric_limits<size_t>::max() / 2;
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};
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class CodeGenerator
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{
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public:
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/// Performs code generation and appends generated to _assembly.
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static void assemble(
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Block const& _parsedData,
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AsmAnalysisInfo& _analysisInfo,
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evmasm::Assembly& _assembly,
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langutil::EVMVersion _evmVersion,
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ExternalIdentifierAccess const& _identifierAccess = ExternalIdentifierAccess(),
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bool _useNamedLabelsForFunctions = false,
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bool _optimizeStackAllocation = false
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);
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};
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}
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