Add ShaderValidator

include/Nazara/Renderer/ShaderValidator.hpp

@@ -0,0 +1,54 @@
+// Copyright (C) 2020 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_SHADERVALIDATOR_HPP
+#define NAZARA_SHADERVALIDATOR_HPP
+
+#include <Nazara/Prerequisites.hpp>
+#include <Nazara/Core/ByteArray.hpp>
+#include <Nazara/Core/ByteStream.hpp>
+#include <Nazara/Renderer/Config.hpp>
+#include <Nazara/Renderer/ShaderVisitor.hpp>
+
+namespace Nz::ShaderAst
+{
+	class NAZARA_RENDERER_API ShaderValidator : public ShaderVisitor
+	{
+		public:
+			ShaderValidator() = default;
+			ShaderValidator(const ShaderValidator&) = delete;
+			ShaderValidator(ShaderValidator&&) = delete;
+			~ShaderValidator() = default;
+
+			bool Validate(const StatementPtr& shader, std::string* error = nullptr);
+
+		private:
+			const ExpressionPtr& MandatoryExpr(const ExpressionPtr& node);
+			const NodePtr& MandatoryNode(const NodePtr& node);
+			void TypeMustMatch(const ExpressionPtr& left, const ExpressionPtr& right);
+
+			using ShaderVisitor::Visit;
+			void Visit(const AssignOp& node) override;
+			void Visit(const BinaryFunc& node) override;
+			void Visit(const BinaryOp& node) override;
+			void Visit(const Branch& node) override;
+			void Visit(const BuiltinVariable& node) override;
+			void Visit(const Cast& node) override;
+			void Visit(const Constant& node) override;
+			void Visit(const DeclareVariable& node) override;
+			void Visit(const ExpressionStatement& node) override;
+			void Visit(const NamedVariable& node) override;
+			void Visit(const Sample2D& node) override;
+			void Visit(const StatementBlock& node) override;
+			void Visit(const SwizzleOp& node) override;
+	};
+
+	NAZARA_RENDERER_API bool Validate(const StatementPtr& shader, std::string* error = nullptr);
+}
+
+#include <Nazara/Renderer/ShaderValidator.inl>
+
+#endif

include/Nazara/Renderer/ShaderValidator.inl

@@ -0,0 +1,12 @@
+// Copyright (C) 2020 Jérôme Leclercq
+// This file is part of the "Nazara Engine - Renderer module"
+// For conditions of distribution and use, see copyright notice in Config.hpp
+
+#include <Nazara/Renderer/ShaderValidator.hpp>
+#include <Nazara/Renderer/Debug.hpp>
+
+namespace Nz::ShaderAst
+{
+}
+
+#include <Nazara/Renderer/DebugOff.hpp>