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include/Nazara/Renderer/ShaderBuilder.hpp

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+// Copyright (C) 2016 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Renderer module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_SHADER_BUILDER_HPP
+#define NAZARA_SHADER_BUILDER_HPP
+
+#include <Nazara/Prerequesites.hpp>
+#include <Nazara/Renderer/ShaderAst.hpp>
+#include <memory>
+
+namespace Nz { namespace ShaderBuilder
+{
+	template<typename T>
+	class GenBuilder
+	{
+		public:
+			template<typename... Args>
+			std::shared_ptr<T> operator()(Args&&... args) const
+			{
+				return std::make_shared<T>(std::forward<Args>(args)...);
+			}
+	};
+
+	template<Nz::ShaderAst::AssignType op>
+	class AssignOpBuilder
+	{
+		public:
+			std::shared_ptr<Nz::ShaderAst::AssignOp> operator()(const Nz::ShaderAst::VariablePtr& left, const Nz::ShaderAst::ExpressionPtr& right) const
+			{
+				return std::make_shared<Nz::ShaderAst::AssignOp>(op, left, right);
+			}
+	};
+
+	template<Nz::ShaderAst::BinaryType op>
+	class BinOpBuilder
+	{
+		public:
+			std::shared_ptr<Nz::ShaderAst::BinaryOp> operator()(const Nz::ShaderAst::ExpressionPtr& left, const Nz::ShaderAst::ExpressionPtr& right) const
+			{
+				return std::make_shared<Nz::ShaderAst::BinaryOp>(op, left, right);
+			}
+	};
+
+	template<Nz::ShaderAst::VariableType type>
+	class VarBuilder
+	{
+		public:
+			template<typename... Args>
+			std::shared_ptr<Nz::ShaderAst::Variable> operator()(Args&&... args) const
+			{
+				return std::make_shared<Nz::ShaderAst::Variable>(type, std::forward<Args>(args)...);
+			}
+	};
+
+	constexpr BinOpBuilder<Nz::ShaderAst::BinaryType::Add> Add;
+	constexpr AssignOpBuilder<Nz::ShaderAst::AssignType::Simple> Assign;
+	constexpr BinOpBuilder<Nz::ShaderAst::BinaryType::Equality> Equal;
+	constexpr GenBuilder<Nz::ShaderAst::StatementBlock> Block;
+	constexpr GenBuilder<Nz::ShaderAst::Branch> Branch;
+	constexpr GenBuilder<Nz::ShaderAst::Constant> Constant;
+	constexpr GenBuilder<Nz::ShaderAst::ExpressionStatement> ExprStatement;
+	constexpr VarBuilder<Nz::ShaderAst::VariableType::Variable> Variable;
+} }
+
+#include <Nazara/Renderer/ShaderBuilder.inl>
+
+#endif // NAZARA_SHADER_BUILDER_HPP