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/*
    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/>.
*/
/**
 * @author Christian <c@ethdev.com>
 * @date 2016
 * Forward declaration of classes for inline assembly / Yul AST
 */

#pragma once

#include <boost/variant.hpp>

namespace dev
{
namespace solidity
{
namespace assembly
{

struct Instruction;
struct Literal;
struct Label;
struct StackAssignment;
struct Identifier;
struct Assignment;
struct VariableDeclaration;
struct FunctionalInstruction;
struct FunctionDefinition;
struct FunctionCall;
struct If;
struct Switch;
struct Case;
struct ForLoop;
struct ExpressionStatement;
struct Block;

struct TypedName;

using Expression = boost::variant<FunctionalInstruction, FunctionCall, Identifier, Literal>;
using Statement = boost::variant<ExpressionStatement, Instruction, Label, StackAssignment, Assignment, VariableDeclaration, FunctionDefinition, If, Switch, ForLoop, Block>;

enum class AsmFlavour
{
    Loose,  // no types, EVM instructions as function, jumps and direct stack manipulations
    Strict, // no types, EVM instructions as functions, but no jumps and no direct stack manipulations
    Yul     // same as Strict mode with types
};

}
}
}