Shader: Cleanup and rename AST files

include/Nazara/Shader/Ast/AstOptimizer.hpp

@@ -0,0 +1,47 @@
+// Copyright (C) 2020 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Shader generator"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#pragma once
+
+#ifndef NAZARA_SHADERASTOPTIMISER_HPP
+#define NAZARA_SHADERASTOPTIMISER_HPP
+
+#include <Nazara/Prerequisites.hpp>
+#include <Nazara/Shader/Config.hpp>
+#include <Nazara/Shader/Ast/AstCloner.hpp>
+#include <vector>
+
+namespace Nz::ShaderAst
+{
+	class NAZARA_SHADER_API AstOptimizer : public AstCloner
+	{
+		public:
+			AstOptimizer() = default;
+			AstOptimizer(const AstOptimizer&) = delete;
+			AstOptimizer(AstOptimizer&&) = delete;
+			~AstOptimizer() = default;
+
+			StatementPtr Optimise(StatementPtr& statement);
+			StatementPtr Optimise(StatementPtr& statement, UInt64 enabledConditions);
+
+			AstOptimizer& operator=(const AstOptimizer&) = delete;
+			AstOptimizer& operator=(AstOptimizer&&) = delete;
+
+		protected:
+			using AstCloner::Visit;
+			void Visit(BinaryExpression& node) override;
+			void Visit(ConditionalExpression& node) override;
+			void Visit(BranchStatement& node) override;
+			void Visit(ConditionalStatement& node) override;
+
+			template<BinaryType Type> void PropagateConstant(std::unique_ptr<ConstantExpression>&& lhs, std::unique_ptr<ConstantExpression>&& rhs);
+
+		private:
+			UInt64 m_enabledConditions;
+	};
+}
+
+#include <Nazara/Shader/Ast/AstOptimizer.inl>
+
+#endif