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				<h4>1. OVERVIEW</h4>
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					<li><a href="index.html"><span>Introduction</span></a></li>
					<li><a href="1_changelog.html"><span>Changelog</span></a></li>
					<li><a href="1_files.html" class="active"><span>Gravity files</span></a></li>
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				<h4>2. PREREQUISITES</h4>
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					<li><a href="2_overview.html"><span>Overview</span></a></li>
					<li><a href="2_array.html"><span>Array</span></a></li>
					<li><a href="2_hash.html"><span>Hash</span></a></li>
					<li><a href="2_memory.html"><span>Memory</span></a></li>
					<li><a href="2_utils.html"><span>Utils</span></a></li>
					<li><a href="2_json.html"><span>JSON</span></a></li>
					<li><a href="2_visitor.html"><span>Visitor Pattern</span></a></li>
					<li><a href="2_vm.html"><span>Stack vs Register VM</span></a></li>
					<li><a href="2_class.html"><span>Class and metaclass</span></a></li>
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				<h4>3. COMPILER</h4>
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					<li><a href="3_overview.html"><span>Overview</span></a></li>
					<li><a href="3_grammar.html"><span>Grammar</span></a></li>
					<li><a href="3_lexer.html"><span>Lexer</span></a></li>
					<li><a href="3_parser.html"><span>Parser</span></a></li>
					<li><a href="3_prattparser.html"><span>Pratt Parser</span></a></li>
					<li><a href="3_ast.html"><span>AST</span></a></li>
					<li><a href="3_symboltable.html"><span>Symbol Table</span></a></li>
					<li><a href="3_semantic.html"><span>Semantic Analyses</span></a></li>
					<li><a href="3_opcodes.html"><span>Opcodes</span></a></li>
					<li><a href="3_ircode.html"><span>IRCode</span></a></li>
					<li><a href="3_codegen.html"><span>Code Generation</span></a></li>
					<li><a href="3_optimizer.html"><span>Optimizer</span></a></li>
					<li><a href="3_bytecode.html"><span>Bytecode</span></a></li>
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				<h4>4. RUNTIME</h4>
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					<li><a href="4_overview.html"><span>Overview</span></a></li>
					<li><a href="4_objmodel.html"><span>Object Model</span></a></li>
					<li><a href="4_memory.html"><span>Memory Ownership</span></a></li>
					<li><a href="4_vm.html"><span>Virtual Machine</span></a></li>
					<li><a href="4_performance.html"><span>Efficient Interpreter</span></a></li>
					<li><a href="4_base.html"><span>Base Classes</span></a></li>
					<li><a href="4_gc.html"><span>Garbage Collector</span></a></li>
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				<h4>5. LLVM</h4>
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         	<h1 class="section-header">Gravity files</h1><hr>
         				
			<p class="section-content">
				In order to increase modularity, Gravity is divided into 4 main components and each one (except shared) is completely independent from the others. In this way there is a clear separation between the compiler itself that end up producing the bytecode and the virtual machine that is responsible to execute that bytecode.
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			<p style="color: #7E267E;"><i class="fa fa-folder-o" aria-hidden="true"></i> Utils</p>
			<ul style="list-style: none;">
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_utils: <span style="color: #797979;">Collects useful functions extensively used by other files. Time, IO, strings, UTF-8 and many other functions can be found in this file.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_json: <span style="color: #797979;">Very efficient JSON parser from <a href="https://github.com/udp/json-parser">https://github.com/udp/json-parser</a>.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_debug: <span style="color: #797979;">Contains the gravity_disassemble function used for debugging purpose.</span></li>
				
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			<p style="color: #7E267E;"><i class="fa fa-folder-o" aria-hidden="true"></i> Compiler</p>
			<ul style="list-style: none;">
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> debug_macros: <span style="color: #797979;">Debug macros used internally during development.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_ast: <span style="color: #797979;">Abstract syntax tree implementation.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_codegen: <span style="color: #797979;">Code generation module.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_compiler: <span style="color: #797979;">Main compiler module that can hides other internal modules.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_ircode: <span style="color: #797979;">Intermediate code and register allocation management.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_lexer: <span style="color: #797979;">Lexer implementation.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_optimizer: <span style="color: #797979;">Optimizer and bytecode finalyzer.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_parser: <span style="color: #797979;">Parser implementation and syntax checker.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_semacheck1: <span style="color: #797979;">Semantic checker step 1 (used for non-local identifiers).</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_semacheck2: <span style="color: #797979;">Semantic checker step 2 (used for local identifiers).</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_symboltable: <span style="color: #797979;">Symbol table management and creation.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_token: <span style="color: #797979;">Tokenizer implementation.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_visitor: <span style="color: #797979;">Visitor patter for C.</span></li>
			</ul>
			<p style="color: #7E267E;"><i class="fa fa-folder-o" aria-hidden="true"></i> Shared</p>
			<ul style="list-style: none;">
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_array: <span style="color: #797979;">Dynamic array macros implementation from <a href="https://github.com/attractivechaos/klib/blob/master/kvec.h">https://github.com/attractivechaos/klib/blob/master/kvec.h</a>.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_delegate: <span style="color: #797979;">This is where utilities are collected in a single file.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_hash: <span style="color: #797979;">Hash table implementation.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_macros: <span style="color: #797979;">Useful macros mainly used at runtime.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_memory: <span style="color: #797979;">Memory management module with built-in leaks checker for MacOS.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_opcodes: <span style="color: #797979;">Enum opcodes officially supported by Gravity.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_value: <span style="color: #797979;">One of the most important module that declare the struct of each object and value used inside Gravity.</span></li>
			</ul>
			<p style="color: #7E267E;"><i class="fa fa-folder-o" aria-hidden="true"></i> Runtime</p>
			<ul style="list-style: none;">
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_core: <span style="color: #797979;">Core classes implementation and definition.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_vm: <span style="color: #797979;">Interpreter and garbage collector implementation.</span></li>
				<li style="color: #7E267E; margin: 8px 0;"><i class="fa fa-file-text-o" aria-hidden="true"></i> gravity_vmmacros: <span style="color: #797979;">Collects various macros used by the Virtual Machine.</span></li>
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