solidity/libyul/backends/wasm/EWasmAST.h
2019-05-02 18:39:54 +02:00

84 lines
2.4 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/>.
*/
/**
* Simplified in-memory representation of a Wasm AST.
*/
#pragma once
#include <boost/variant.hpp>
#include <string>
#include <vector>
namespace yul
{
namespace wasm
{
struct Literal;
struct LocalVariable;
struct GlobalVariable;
struct Label;
struct FunctionCall;
struct BuiltinCall;
struct LocalAssignment;
struct GlobalAssignment;
struct Block;
struct If;
struct Loop;
struct Break;
struct Continue;
using Expression = boost::variant<
Literal, LocalVariable, GlobalVariable, Label,
FunctionCall, BuiltinCall, LocalAssignment, GlobalAssignment,
Block, If, Loop, Break, Continue
>;
struct Literal { uint64_t value; };
struct LocalVariable { std::string name; };
struct GlobalVariable { std::string name; };
struct Label { std::string name; };
struct FunctionCall { std::string functionName; std::vector<Expression> arguments; };
struct BuiltinCall { std::string functionName; std::vector<Expression> arguments; };
struct LocalAssignment { std::string variableName; std::unique_ptr<Expression> value; };
struct GlobalAssignment { std::string variableName; std::unique_ptr<Expression> value; };
struct Block { std::string labelName; std::vector<Expression> statements; };
struct If {
std::unique_ptr<Expression> condition;
std::vector<Expression> statements;
std::unique_ptr<std::vector<Expression>> elseStatements;
};
struct Loop { std::string labelName; std::vector<Expression> statements; };
struct Break { Label label; };
struct Continue { Label label; };
struct VariableDeclaration { std::string variableName; };
struct GlobalVariableDeclaration { std::string variableName; };
struct FunctionDefinition
{
std::string name;
std::vector<std::string> parameterNames;
bool returns;
std::vector<VariableDeclaration> locals;
std::vector<Expression> body;
};
}
}