// Copyright (C) 2021 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
// This file is part of the "Nazara Engine - Shader module"
// For conditions of distribution and use, see copyright notice in Config.hpp

#pragma once

#ifndef NAZARA_SHADER_AST_CONSTANTVALUE_HPP
#define NAZARA_SHADER_AST_CONSTANTVALUE_HPP

#include <Nazara/Prerequisites.hpp>
#include <Nazara/Core/TypeList.hpp>
#include <Nazara/Math/Vector2.hpp>
#include <Nazara/Math/Vector3.hpp>
#include <Nazara/Math/Vector4.hpp>
#include <Nazara/Shader/Config.hpp>
#include <Nazara/Shader/Ast/ExpressionType.hpp>
#include <variant>

namespace Nz::ShaderAst
{
	using NoValue = std::monostate;

	using ConstantTypes = TypeList<
		NoValue,
		bool,
		float,
		Int32,
		UInt32,
		Vector2f,
		Vector3f,
		Vector4f,
		Vector2i32,
		Vector3i32,
		Vector4i32
	>;

	using ConstantValue = TypeListInstantiate<ConstantTypes, std::variant>;

	NAZARA_SHADER_API ExpressionType GetExpressionType(const ConstantValue& constant);
}

#endif // NAZARA_SHADER_AST_CONSTANTVALUE_HPP