solidity/libsolidity/codegen/ir/IRGeneratorForStatements.h
2019-04-24 22:52:17 +02:00

68 lines
2.0 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/>.
*/
/**
* Component that translates Solidity code into Yul at statement level and below.
*/
#pragma once
#include <libsolidity/ast/ASTVisitor.h>
namespace dev
{
namespace solidity
{
class IRGenerationContext;
class YulUtilFunctions;
/**
* Component that translates Solidity's AST into Yul at statement level and below.
* It is an AST visitor that appends to an internal string buffer.
*/
class IRGeneratorForStatements: public ASTConstVisitor
{
public:
IRGeneratorForStatements(IRGenerationContext& _context, YulUtilFunctions& _utils):
m_context(_context),
m_utils(_utils)
{}
std::string code() const { return m_code.str(); }
bool visit(VariableDeclarationStatement const& _variableDeclaration) override;
bool visit(Assignment const& _assignment) override;
bool visit(Return const& _return) override;
void endVisit(BinaryOperation const& _binOp) override;
bool visit(FunctionCall const& _funCall) override;
bool visit(InlineAssembly const& _inlineAsm) override;
bool visit(Identifier const& _identifier) override;
bool visit(Literal const& _literal) override;
private:
/// @returns a Yul expression representing the current value of @a _expression,
/// converted to type @a _to if it does not yet have that type.
std::string expressionAsType(Expression const& _expression, Type const& _to);
std::ostringstream m_code;
IRGenerationContext& m_context;
YulUtilFunctions& m_utils;
};
}
}