Initial shaderlang commit

include/Nazara/Shader/ShaderLangParser.hpp

@@ -0,0 +1,58 @@
+// 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_SHADER_LANGPARSER_HPP
+#define NAZARA_SHADER_LANGPARSER_HPP
+
+#include <Nazara/Prerequisites.hpp>
+#include <Nazara/Shader/Config.hpp>
+#include <Nazara/Shader/ShaderLangLexer.hpp>
+
+namespace Nz::ShaderLang
+{
+	class ExpectedToken : public std::exception
+	{
+		public:
+			using exception::exception;
+	};
+
+	class UnexpectedToken : public std::exception
+	{
+		public:
+			using exception::exception;
+	};
+
+	class NAZARA_SHADER_API Parser
+	{
+		public:
+			inline Parser();
+			~Parser() = default;
+
+			void Parse(const std::vector<Token>& tokens);
+
+		private:
+			const Token& Advance();
+			void Expect(const Token& token, TokenType type);
+			void ExpectNext(TokenType type);
+			void ParseFunctionBody();
+			void ParseFunctionDeclaration();
+			void ParseFunctionParameter();
+			const Token& PeekNext();
+
+			struct Context
+			{
+				std::size_t tokenCount;
+				std::size_t tokenIndex = 0;
+				const Token* tokens;
+			};
+
+			Context* m_context;
+	};
+}
+
+#include <Nazara/Shader/ShaderLangParser.inl>
+
+#endif