c part ready to go

.gitignore

@@ -1,3 +1,5 @@
 build
 recovery
 BeefSpace_User.toml
+
+clang-c.h

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "Clang-C"]
+	path = Clang-C
+	url = https://git.unicon-gmbh.de/BeefBindings/Clang-C.git

BeefProj.toml

@@ -1,6 +1,6 @@
 FileVersion = 1
+Dependencies = {corlib = "*", "Clang-C.git" = {Git = "https://git.unicon-gmbh.de/BeefBindings/Clang-C.git"}}
 
 [Project]
 Name = "Cpp2Beef"
-TargetType = "BeefLib"
-StartupObject = "Cpp2Beef.Program"
+StartupObject = "ClangC.Setup.Program"

BeefSpace.toml

@@ -1,5 +1,6 @@
 FileVersion = 1
-Projects = {Cpp2Beef = {Path = "."}}
+Projects = {Cpp2Beef = {Path = "."}, "Clang-C.git" = {Git = "https://git.unicon-gmbh.de/BeefBindings/Clang-C.git"}}
+Unlocked = ["Clang-C.git"]
 
 [Workspace]
 StartupProject = "Cpp2Beef"

BeefSpace_Lock.toml

@@ -0,0 +1,6 @@
+FileVersion = 1
+
+[Locks."Clang-C.git".Git]
+URL = "https://git.unicon-gmbh.de/BeefBindings/Clang-C.git"
+Tag = ""
+Hash = "a64e7a0cac26e4844385b87e595e27e95b46e5a0"

CxxBuilder/.gitignore

@@ -0,0 +1,6 @@
+build
+recovery
+test
+BeefSpace_User.toml
+
+dist/*

CxxBuilder/BeefProj.toml

@@ -0,0 +1,29 @@
+FileVersion = 1
+
+[Project]
+Name = "CxxBuilder"
+StartupObject = "CxxBuilder.Program"
+
+[Configs.Debug.Win32]
+TargetDirectory = "$(ProjectDir)/dist"
+
+[Configs.Debug.Win64]
+TargetDirectory = "$(ProjectDir)/dist"
+
+[Configs.Release.Win32]
+TargetDirectory = "$(ProjectDir)/dist"
+
+[Configs.Release.Win64]
+TargetDirectory = "$(ProjectDir)/dist"
+
+[Configs.Paranoid.Win32]
+TargetDirectory = "$(ProjectDir)/dist"
+
+[Configs.Paranoid.Win64]
+TargetDirectory = "$(ProjectDir)/dist"
+
+[Configs.Test.Win32]
+TargetDirectory = "$(ProjectDir)/dist"
+
+[Configs.Test.Win64]
+TargetDirectory = "$(ProjectDir)/dist"

CxxBuilder/BeefSpace.toml

@@ -0,0 +1,5 @@
+FileVersion = 1
+Projects = {CxxBuilder = {Path = "."}}
+
+[Workspace]
+StartupProject = "CxxBuilder"

CxxBuilder/src/FileMatcher.bf

@@ -0,0 +1,137 @@
+using System;
+using System.IO;
+using System.Collections;
+using System.Diagnostics;
+
+namespace CxxBuilder;
+
+static class FileMatcher
+{
+	public static void HandleMatches(Span<StringView> patterns, StringView directory, delegate void(StringView match) callback)
+	{
+		Runtime.Assert(Directory.Exists(directory), scope $"No such directory {directory}");
+		void Dir(StringView dir)
+		{
+			for (let element in Directory.Enumerate(dir))
+			{
+				let path = element.GetFilePath(..scope .());
+				path.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar);
+				if (element.IsDirectory)
+				{
+					Dir(path);
+					continue;
+				}
+				let relpath = Path.GetRelativePath(path, directory, ..scope .());
+				for (let pattern in patterns)
+					if (IsMatch(pattern, relpath))
+					{
+						callback(relpath);
+						break;
+					}
+			}
+		}
+		Dir(directory);
+	}
+
+	public static bool IsMatch(StringView pattern, StringView path)
+	{
+		var pattern, path;
+
+		bool Matches(StringView pattern, char8 c)
+		{
+			if (pattern.IsEmpty) return false;
+
+			switch (pattern[0])
+			{
+			case '*':
+				if (pattern.Length > 1 && pattern[1] == '*')
+					return true;
+				return !Path.IsDirectorySeparatorChar(c);
+			case '?': return true;
+			case '\\':
+				Runtime.Assert(pattern.Length > 1, "Expected escape sequence");
+				return c == pattern[1];
+			case '/': return Path.IsDirectorySeparatorChar(c);
+			case '[':
+				int i = 0;
+				char8 Next()
+				{
+					if (pattern.Length <= ++i)
+						Runtime.FatalError("Character class not closed");
+					return pattern[i];
+				}
+				bool negated = false;
+				char8 current;
+				switch (Next())
+				{
+				case '^', '!': negated = true; fallthrough;
+				case '\\': current = Next();
+				case ']': return false;
+				default: current = _;
+				}
+				while (true)
+				{
+					if (c == current) return !negated;
+					switch (Next())
+					{
+					case ']': return negated;
+					case '-':
+						let end = Next();
+						if (c >= current && c <= end)
+							return !negated;
+						current = Next();
+					case '\\': current = Next();
+					default: current = _;
+					}
+				}
+			default:
+				return c == _;
+			}
+		}
+
+		reduce: while (true)
+		{
+			if (path.IsEmpty) return true;
+			if (pattern.IsEmpty) return false;
+			if (!Matches(pattern, path[0])) return false;
+			switch (pattern[0])
+			{
+			case '*':
+				StringView lazy;
+				if (pattern.Length > 1)
+				{
+					lazy = pattern;
+					lazy.RemoveFromStart(pattern[1] == '*' ? 2 : 1);
+				}
+				else lazy = .();
+				defer { pattern = lazy; }
+				while (true)
+				{
+					if (IsMatch(lazy, path)) continue reduce;
+					if (!Matches(pattern, path[0])) continue reduce;
+					path.RemoveFromStart(1);
+					if (path.IsEmpty) return lazy.IsEmpty;
+				}
+			case '[':
+				bool escaped = false;
+				while (true)
+				{
+					let c = pattern[0];
+					pattern.RemoveFromStart(1);
+					if (c == ']' && !escaped)
+					{
+						path.RemoveFromStart(1);
+						continue reduce;
+					}
+					escaped = c == '\\';
+				}
+			case '\\':
+				pattern.RemoveFromStart(2);
+				path.RemoveFromStart(1);
+			default:
+				pattern.RemoveFromStart(1);
+				path.RemoveFromStart(1);
+			}
+		}
+	}
+}

CxxBuilder/src/Program.bf

@@ -0,0 +1,134 @@
+using System;
+using System.IO;
+using System.Collections;
+using System.Diagnostics;
+
+namespace CxxBuilder;
+
+static class Program
+{
+	[CLink] static extern int32 system(char8*);
+
+	public static int Main(String[] args)
+	{
+		mixin PrintUsage()
+		{
+			Console.WriteLine("""
+				Simple and fast build tool using clang and ninja.
+
+				Usage: $(Var CxxBuilderExe) <patterns...> -- src=<> target=<> builddir=<> output=<> [cflags=<>]
+				Example: $(Var CxxBuilderExe) **.c vk_*.cpp -- "src=$(ProjectDir)/MyLib/src" target=$(TargetTriple) "builddir=$(BuildDir)" output=MyLib cflags=-Isome/dir
+
+				src - The source dir, all patterns are rooted here
+				target - the llvm target triple passed to clang
+				builddir - contains build artifacts and ninja files
+				output - the name of the output object archive $builddir/$output.lib on windows and $builddir/$output.a elsewhere
+				cflags - additional flags passed to clang
+				""");
+			return 1;
+		}
+
+		StringView src = null, target = null, builddir = null, output = null, cflags = null;
+		var iter = args.GetEnumerator();
+		skipPatterns: do
+		{
+			for (let arg in iter)
+				if (arg == "--") break skipPatterns;
+			PrintUsage!();
+		}
+		for (let arg in iter)
+		{
+			var parts = arg.Split('=', 2);
+			StringView key = parts.GetNext().Value;
+			StringView value;
+			switch (parts.GetNext())
+			{
+			case .Err: PrintUsage!();
+			case .Ok(out value):
+			}
+			key.Trim();
+			value.Trim();
+			switch (key)
+			{
+			case "src": Runtime.Assert(src.IsNull, "Duplicate var 'src'"); src = value;
+			case "target": Runtime.Assert(target.IsNull, "Duplicate var 'target'"); target = value;
+			case "builddir": Runtime.Assert(builddir.IsNull, "Duplicate var 'builddir'"); builddir = value;
+			case "output": Runtime.Assert(output.IsNull, "Duplicate var 'output'"); output = value;
+			case "cflags": Runtime.Assert(cflags.IsNull, "Duplicate var 'cflags'"); cflags = value;
+			default: PrintUsage!();
+			}
+		}
+		Runtime.Assert(!src.IsNull, "Missing var 'src'");
+		Runtime.Assert(!target.IsNull, "Missing var 'target'");
+		Runtime.Assert(!builddir.IsNull, "Missing var 'builddir'");
+		Runtime.Assert(!builddir.IsNull, "Missing var 'output'");
+
+		{
+			StreamWriter writer = scope .()..Create(scope $"{builddir}/build.ninja");
+			{
+				String buffer = scope .(1024);
+				let currentDir = Directory.GetCurrentDirectory(..scope .(128));
+				void WriteVarPath(StringView key, StringView value)
+				{
+					buffer.Append(key);
+					buffer.Append(" = ");
+					Path.GetAbsolutePath(value, currentDir, buffer);
+					buffer.Append('\n');
+				}
+				WriteVarPath("src", src);
+				WriteVarPath("builddir", builddir);
+				buffer.AppendF($"""
+					target = {target}
+					cflags = {cflags}
+					""");
+				writer.Write(buffer);
+			}
+			writer.Write("""
+				\n
+				cc = clang
+				ar = ar
+
+				rule cc
+				  command = $cc $cflags -target $target -MD -MF $out.d -c -o $out $in
+				  deps = gcc
+				  depfile = $out.d
+				  description = Building $in
+
+				rule ar
+				  command = $ar crs $out $in
+				  description = Creating static lib $out
+
+
+				""");
+			String ar = scope .(1024);
+			ar.AppendF($"\nbuild $builddir/{output}.{target.Contains("windows") ? "lib" : "a"}: ar");
+
+			int pcount = 0;
+			for (let arg in args)
+			{
+				if (arg == "--") break;
+				pcount++;
+			}
+			StringView[] patterns = scope .[pcount];
+			for (var pattern in ref patterns)
+			{
+				pattern = args[@pattern];
+			}
+
+			void HandleMatch(StringView match)
+			{
+				writer.Write($"build $builddir/{match}.o: cc $src/{match}\n");
+				ar.Append(" $builddir/", match, ".o");
+			}
+			let abssrc = Path.GetAbsolutePath(src, Directory.GetCurrentDirectory(..scope .(128)), ..scope .(128)); 
+			FileMatcher.HandleMatches(patterns, abssrc, scope => HandleMatch);
+
+			writer.WriteLine(ar);
+		}
+
+		let ret = system(scope $"ninja -C {builddir}");
+		if (ret != 0)
+			Console.WriteLine($"Failed to build {output}");
+		return ret;
+	}
+}

Setup/.gitignore

@@ -0,0 +1,3 @@
+build
+recovery
+BeefSapce_user.toml

Setup/BeefProj.toml

@@ -0,0 +1,5 @@
+FileVersion = 1
+
+[Project]
+Name = "Cpp2Beef.Setup"
+StartupObject = "Cpp2Beef.Setup.Program"

Setup/BeefSpace.toml

@@ -0,0 +1,5 @@
+FileVersion = 1
+Projects = {"Cpp2Beef.Setup" = {Path = "."}}
+
+[Workspace]
+StartupProject = "Cpp2Beef.Setup"

Setup/src/Program.bf

@@ -0,0 +1,27 @@
+using System;
+using System.IO;
+
+namespace Cpp2Beef.Setup;
+
+static class Program
+{
+	[CLink] static extern int32 system(char8*);
+	static void RunCommand(char8* cmd)
+	{
+		Console.WriteLine($"> {StringView(cmd)}");
+		if (system(cmd) != 0)
+			Runtime.FatalError("Command failed");
+	}
+
+	public static int Main(String[] args)
+	{
+		RunCommand("beefbuild -workspace=\"../CxxBuilder\" -config=Release");
+		String setCxxBuilderExe = scope .(512);
+		Path.GetAbsolutePath("../CxxBuilder/dist/CxxBuilder", Directory.GetCurrentDirectory(..scope .(128)), setCxxBuilderExe);
+#if BF_PLATFORM_WINDOWS
+		setCxxBuilderExe.Append(".exe");
+#endif
+		File.WriteAllText("../CxxBuilder/dist/CxxBuilderPath.txt", setCxxBuilderExe);
+		return 0;
+	}
+}

src/ClangC.bf

@@ -0,0 +1,171 @@
+using System;
+using System.IO;
+using System.Collections;
+using System.Diagnostics;
+
+using Cpp2Beef;
+using LibClang;
+
+namespace ClangC.Setup;
+
+class ClangCGenerator : Cpp2BeefGenerator, this(Span<char8*> args)
+{
+	protected override Span<char8*> Args => args;
+	protected override Cpp2BeefGenerator.Flags Flags => .None;
+
+	public Dictionary<String, StreamWriter> writers = new .(8) ~ DeleteDictionaryAndKeysAndValues!(_);
+	protected override StreamWriter GetWriterForHeader(StringView header)
+	{
+		if (header.IsNull || !header.Contains("clang-c")) return null;
+		let headerPath = Path.GetActualPathName(header, ..scope .(header.Length));
+		if (writers.TryAddAlt(headerPath, let keyPtr, let valuePtr))
+		{
+			String outPath = scope .(64);
+			outPath.Append("../Cpp2Beef_dist/Clang-C/src/");
+			Path.GetFileNameWithoutExtension(headerPath, outPath);
+			outPath.Append(".bf");
+			*keyPtr = new .(headerPath);
+			*valuePtr = new .()..Create(outPath)..Write("""
+				// This file was auto-generated by Cpp2Beef
+
+				using System;
+				using System.Interop;
+
+				namespace LibClang;
+
+
+				""");
+		}
+		return *valuePtr;
+	}
+
+	protected override Block GetCursorBlock(CXCursor cursor)
+	{
+		if (cursor.kind == .FunctionDecl)
+			return .CustomBlock("Clang");
+		return base.GetCursorBlock(cursor);
+	}
+
+	protected override bool IsOutParam(CXCursor arg, CXCursor method)
+	{
+		let comment = Clang.Cursor_GetParsedComment(method);
+		let spelling = GetCursorSpelling!(arg);
+		for (let i < Clang.Comment_GetNumChildren(comment))
+		{
+			let param = Clang.Comment_GetChild(comment, i);
+			if (Clang.Comment_GetKind(param) != .ParamCommand ||
+				ScopeCXString!(Clang.ParamCommandComment_GetParamName(param)) != spelling) continue;
+			let paragraph = Clang.BlockCommandComment_GetParagraph(param);
+			if (Clang.Comment_GetNumChildren(paragraph) == 0) continue;
+			let paragraphChild = Clang.Comment_GetChild(paragraph, 0);
+			if (Clang.Comment_GetKind(paragraphChild) != .Text) continue;
+			StringView paragraphText = ScopeCXString!(Clang.TextComment_GetText(paragraphChild));
+			if (paragraphText..TrimStart().StartsWith("[out]")) return true;
+			else break;
+		}
+		return base.IsOutParam(arg, method);
+	}
+
+	protected override void GetNameInBindings(CXCursor cursor, String outString)
+	{
+		switch (cursor.kind)
+		{
+		case .FunctionDecl:
+			StringView spelling = GetCursorSpelling!(cursor);
+			if (spelling.StartsWith("clang_")) spelling.RemoveFromStart(6);
+			bool upper = true;
+			for (let c in spelling)
+			{
+				if (upper)
+				{
+					outString.Append(c.ToUpper);
+					upper = false;
+				}
+				else
+					outString.Append(c);
+				if (c == '_') upper = true;
+			}
+		case .EnumConstantDecl:
+			let parentSpelling = GetCursorSpelling!(Clang.GetCursorSemanticParent(cursor));
+			var spelling = GetCursorSpelling!(cursor);
+			int i = 0;
+			for (; i < parentSpelling.Length && i < spelling.Length
+				&& parentSpelling[i] == spelling[i]; i++) {}
+			spelling.RemoveFromStart(i);
+			if (spelling.StartsWith('_')) spelling.RemoveFromStart(1);
+			Compiler.Identifier.GetSourceName(spelling, outString);
+		default:
+			base.GetNameInBindings(cursor, outString);
+		}
+	}
+
+	protected override void HandleCursor(CXCursor cursor)
+	{
+		if (cursor.kind == .TypedefDecl) do
+		{
+			let type = Clang.GetTypedefDeclUnderlyingType(cursor);
+			if (type.kind != .Pointer) break;
+			let pointee = Clang.GetPointeeType(type);
+			if (pointee.kind == .FunctionProto || pointee.kind == .FunctionNoProto ||
+				(pointee.kind == .Void && GetCursorSpelling!(cursor) == "CXClientData")) break;
+			BeginCursor(cursor);
+			AccessSpecifier(cursor);
+			str.Append("struct ");
+			GetNameInBindings(cursor, str);
+			str.Append(" : int {}");
+			return;
+		}
+		base.HandleCursor(cursor);
+	}
+
+	protected override void WriteCustomAttributes(CXCursor cursor)
+	{
+		if (cursor.kind == .FunctionDecl)
+			str.Append("[Import(Clang.dll)] ");
+		base.WriteCustomAttributes(cursor);
+	}
+}
+
+static class Program
+{
+	[CLink] extern static int32 system(char8*);
+
+	const String[?] clangFiles = .(
+		"BuildSystem",
+		"CXCompilationDatabase",
+		"CXDiagnostic",
+		"CXErrorCode",
+		"CXFile",
+		"CXSourceLocation",
+		"CXString",
+		"Documentation",
+		"ExternC",
+		"FatalErrorHandler",
+		"Index",
+		"Platform",
+		"Rewrite",
+	);
+	const String clangHeaders = "./Clang-C/clang-c";
+	const String IclangHeaders = "-IClang-C";
+
+	public static int Main(String[] args)
+	{
+		ClangCGenerator generator = scope .(char8*[?]("--language=c", IclangHeaders));
+
+		Directory.CreateDirectory(clangHeaders);
+		{
+			StreamWriter includeAll = scope .()..Create("clang-c.h");
+			for (let file in clangFiles)
+			{
+				//if (system(scope $"curl -o {clangHeaders}/{file}.h https://raw.githubusercontent.com/llvm/llvm-project/refs/heads/main/clang/include/clang-c/{file}.h") != 0)
+				//	Runtime.FatalError(scope $"Failed to download clang-c/{file}");
+				includeAll.Write($"#include <clang-c/{file}.h>\n");
+			}
+		}
+
+		Directory.CreateDirectory("clang-c");
+		generator.Generate("clang-c.h", null);
+
+		return 0;
+	}
+}

src/Generator.bf

@@ -38,6 +38,8 @@ abstract class Cpp2BeefGenerator
 			case "uint16_t": outString.Append("uint16");
 			case "uint32_t": outString.Append("uint32");
 			case "uint64_t": outString.Append("uint64");
+			case "intptr_t": outString.Append("c_intptr");
+			case "uintptr_t": outString.Append("c_uintptr");
 			default: fallthrough getName;
 			}
 		default:
@@ -93,7 +95,7 @@ abstract class Cpp2BeefGenerator
 		}
 	}
 
-	void WriteBlock(Block block)
+	protected void WriteBlock(Block block)
 	{
 		StringView target;
 		switch (block)
@@ -131,6 +133,8 @@ abstract class Cpp2BeefGenerator
 		switch (cursor.kind)
 		{
 		case .StructDecl, .ClassDecl, .UnionDecl, .EnumDecl:
+			if (Clang.Cursor_IsAnonymous(cursor) != 0)
+				return;
 			if (templateParams.IsEmpty && Clang.EqualCursors(cursor, Clang.GetTypeDeclaration(Clang.GetCursorType(cursor))) == 0)
 				return;
 			BeginCursor(cursor);
@@ -170,7 +174,7 @@ abstract class Cpp2BeefGenerator
 			MacroDefinition(cursor);
 
 		case .InclusionDirective, .MacroExpansion, .CXXBaseSpecifier, .CXXAccessSpecifier,
-			 .LinkageSpec, .TemplateTypeParameter, .NonTypeTemplateParameter: // ignored
+			 .LinkageSpec, .TemplateTypeParameter, .NonTypeTemplateParameter, .StaticAssert: // ignored
 		default: Debug.WriteLine(scope $"Unhandled cursor: {_}");
 		}
 	}
@@ -222,7 +226,8 @@ abstract class Cpp2BeefGenerator
 	protected class FileInfo : this(CXSourceLocation prevEnd, CXFile file)
 	{
 		public append String block = .(64);
-		public enum { None, LSquirly, RSquirly } queuedToken = .None;
+		public enum { None = 0, LSquirly = 1, RSquirly = 0b10 } queuedTokens = .None;
+		public (CXType type, int32 curWidth) bitfield = default;
 	}
 	protected FileInfo fileInfo = null;
 	private Dictionary<String, FileInfo> fileInfos = new .(32) ~ DeleteDictionaryAndKeysAndValues!(_);
@@ -251,6 +256,18 @@ abstract class Cpp2BeefGenerator
 		ScopeCXString!:mixin(Clang.GetTokenSpelling(unit, token))
 	}
 
+	public static void UpperSnakeCase2PascalCase(StringView snakeCase, String outString)
+	{
+		bool upper = true;
+		for (let c in snakeCase)
+			if (c == '_') upper = true;
+			else
+			{
+				outString.Append(upper ? c.ToUpper : c.ToLower);
+				upper = false;
+			}
+	}
+
 	protected virtual void PreGeneration() {}
 	protected virtual void PostGeneration() {}
 
@@ -305,7 +322,7 @@ abstract class Cpp2BeefGenerator
 #endif
 		CXTranslationUnit_Flags unitFlags = .SkipFunctionBodies | .DetailedPreprocessingRecord;
 		unit = Clang.ParseTranslationUnit(index, headerPath, args.Ptr, (.)args.Length, null, 0, (.)unitFlags);
-		if (unit == null) return .Err(.ParsingFailed);
+		if (unit == default) return .Err(.ParsingFailed);
 		
 		printingPolicy = Clang.GetCursorPrintingPolicy(Clang.GetTranslationUnitCursor(unit));
 		ModifyWrapperPrintingPolicy(printingPolicy);
@@ -318,14 +335,14 @@ abstract class Cpp2BeefGenerator
 
 			{
 				let location = Clang.GetCursorLocation(cursor);
-				Clang.GetSpellingLocation(location, let file, let line, ?, ?);
+				Clang.GetFileLocation(location, let file, let line, ?, ?);
 				let header = ScopeCXString!(Clang.GetFileName(file));
 				self.currentWritter = self.GetWriterForHeader(header);
 				if (self.currentWritter == null) return .Continue;
 
 				if (cursor.kind == .MacroDefinition)
 				{
-					self.unitMacros.Add(.(line, file), cursor);
+					self.unitMacros[.(line, file)] = cursor;
 					return .Continue;
 				}
 
@@ -429,7 +446,7 @@ abstract class Cpp2BeefGenerator
 
 	protected void FatalErrorMsg(String outString)
 	{
-		Clang.GetSpellingLocation(Clang.GetCursorLocation(currentCursor), let file, let line, let col, ?);
+		Clang.GetFileLocation(Clang.GetCursorLocation(currentCursor), let file, let line, let col, ?);
 		outString.Append("in cursor '", GetCursorSpelling!(currentCursor), "' at line ");
 		outString.AppendF($"{line}:{col}");
 		outString.Append(" in file ", GetFilePath!(file));
@@ -451,7 +468,7 @@ abstract class Cpp2BeefGenerator
 		StringView file;
 		uint32 offset;
 		{
-			Clang.GetSpellingLocation(location, let cxfile, ?, ?, out offset);
+			Clang.GetFileLocation(location, let cxfile, ?, ?, out offset);
 			char8* ptr = Clang.GetFileContents(unit, cxfile, let size);
 			file = .(ptr, (.)size);
 		}
@@ -467,7 +484,7 @@ abstract class Cpp2BeefGenerator
 		StringView file;
 		uint32 offset;
 		{
-			Clang.GetSpellingLocation(from, let cxfile, ?, ?, out offset);
+			Clang.GetFileLocation(from, let cxfile, ?, ?, out offset);
 			char8* ptr = Clang.GetFileContents(unit, cxfile, let size);
 			file = .(ptr, (.)size);
 		}
@@ -487,8 +504,8 @@ abstract class Cpp2BeefGenerator
 			Clang.EqualLocations(end, Clang.GetNullLocation()) != 0) return;
 
 		StringView file;
-		Clang.GetSpellingLocation(start, let startFile, ?, ?, let startOffset);
-		Clang.GetSpellingLocation(end, let endfile, ?, ?, let endOffset);
+		Clang.GetFileLocation(start, let startFile, ?, ?, let startOffset);
+		Clang.GetFileLocation(end, let endfile, ?, ?, let endOffset);
 		if (Clang.File_IsEqual(startFile, endfile) == 0) return;
 		char8* ptr = Clang.GetFileContents(unit, startFile, let size);
 		file = .(ptr, (.)size);
@@ -501,24 +518,35 @@ abstract class Cpp2BeefGenerator
 		}
 	}
 
+	protected virtual CXSourceLocation GetCursorAnchor(CXCursor cursor)
+	{
+		let cursorLocation = Clang.GetCursorLocation(cursor);
+		//let rangeLocation = Clang.GetRangeStart(Clang.GetCursorExtent(cursor));
+		//if (Clang.File_IsEqual(Clang.GetSpellingLocation(cursorLocation, file: ..?, ?, ?, ?), Clang.GetSpellingLocation(rangeLocation, file: ..?, ?, ?, ?)) == 0)
+			return cursorLocation; 
+		//return rangeLocation;
+	}
+
 	protected virtual void WriteComments(CXCursor cursor, Block? block = null)
 	{
+		let location = GetCursorAnchor(cursor);
 		if (cursor.kind == .MacroDefinition)
 		{
-			GetIndentation(Clang.GetCursorLocation(cursor), str);
+			if (block.HasValue) WriteBlock(block.Value);
+			GetIndentation(location, str);
 			return;
 		}
 		cursorIndent.Clear();
-		GetIndentation(Clang.GetCursorLocation(cursor), cursorIndent);
-		WriteComments(Clang.GetCursorLocation(cursor), block);
+		GetIndentation(location, cursorIndent);
+		WriteComments(location, block);
 	}
 	protected virtual void WriteComments(CXSourceLocation writeUntil, Block? block = null)
 	{
-		Clang.GetSpellingLocation(writeUntil, let curFile, let curLine, let curColumn, let curOffset);
-		Clang.GetSpellingLocation(fileInfo.prevEnd, let prevFile, let prevLine, let prevColumn, let prevOffset);
+		Clang.GetFileLocation(writeUntil, let curFile, let curLine, let curColumn, let curOffset);
+		Clang.GetFileLocation(fileInfo.prevEnd, let prevFile, let prevLine, let prevColumn, let prevOffset);
 
 		defer { fileInfo.prevEnd = writeUntil; }
-		if (Clang.File_IsEqual(curFile, prevFile) == 0) Runtime.FatalError();
+		if (Clang.File_IsEqual(curFile, prevFile) == 0) Runtime.FatalError(scope $"{GetFilePath!(curFile)} != {GetFilePath!(prevFile)}");
 
 		var between = Clang.GetRange(
 			Clang.GetLocationForOffset(unit, prevFile, prevOffset),
@@ -579,18 +607,23 @@ abstract class Cpp2BeefGenerator
 			{
 			case .Comment:
 			case .Punctuation:
-				switch (fileInfo.queuedToken)
+				mixin QueuedToken(var queuedToken, StringView spelling)
 				{
-				case .LSquirly: if (GetTokenSpelling!(token) != "{") continue;
-				case .RSquirly: if (GetTokenSpelling!(token) != "}") continue;
-				case .None: continue;
-				}
-				fileInfo.queuedToken = .None;
+					if (fileInfo.queuedTokens.HasFlag(queuedToken) && GetTokenSpelling!(token) == spelling)
+					{
+						fileInfo.queuedTokens ^= queuedToken;
 						isWritingQueuedToken = true;
+					}
+				}
+
+				QueuedToken!(decltype(fileInfo.queuedTokens).LSquirly, "{");
+				QueuedToken!(decltype(fileInfo.queuedTokens).RSquirly, "}");
+
+				if (!isWritingQueuedToken) continue;
 			default: continue;
 			}
 			let location = Clang.GetTokenLocation(unit, token);
-			Clang.GetSpellingLocation(location, ?, let startLine, ?, ?);
+			Clang.GetFileLocation(location, ?, let startLine, ?, ?);
 			WriteLinesUntil!(startLine, location);
 			if (!isWritingQueuedToken)
 			{
@@ -671,6 +704,13 @@ abstract class Cpp2BeefGenerator
 				case .StructDecl, .ClassDecl, .UnionDecl: Record(decl);
 				default: Runtime.FatalError(scope $"Unhandled anon type: {_}");
 				}
+				if (fileInfo.queuedTokens.HasFlag(.RSquirly))
+				{
+					str.Append('\n');
+					GetIndentation(GetCursorAnchor(decl), str);
+					str.Append('}');
+					fileInfo.queuedTokens ^= .RSquirly;
+				}
 				break;
 			}
 
@@ -751,6 +791,7 @@ abstract class Cpp2BeefGenerator
 			{
 				if (Clang.GetTokenKind(token) == .Punctuation && { let spelling = GetTokenSpelling!(token); spelling == "," || spelling == ")" })
 				{
+					if (Clang.GetTokenKind(last) != .Identifier) break;
 					str.Append(' ');
 					str.Append(GetTokenSpelling!(last));
 					break;
@@ -779,26 +820,27 @@ abstract class Cpp2BeefGenerator
 
 	protected mixin BeginBody(CXCursor cursor)
 	{
-		fileInfo.prevEnd = Clang.GetCursorLocation(cursor);
-		fileInfo.queuedToken = .LSquirly;
+		fileInfo.prevEnd = GetCursorAnchor(cursor);
+		fileInfo.queuedTokens |= .LSquirly;
 
+		// [Friend] is needed in case you use BeginBody! in your code
 		if (canChangeBlock)
 		{
-			defer:mixin { canChangeBlock = true; }
-			canChangeBlock = false;
+			defer:mixin { this.[Friend]canChangeBlock = true; }
+			this.[Friend]canChangeBlock = false;
 		}
 
 		defer:mixin
 		{
-			if (defferedWrapperWrite != null)
+			if (this.[Friend]defferedWrapperWrite != null)
 			{
 				str.Append("\n\n", cursorIndent, "const String _wrapperText = \"\\n\"\n",
-					defferedWrapperWrite, ";");
-				delete defferedWrapperWrite;
-				defferedWrapperWrite = null;
+					this.[Friend]defferedWrapperWrite, ";");
+				delete this.[Friend]defferedWrapperWrite;
+				this.[Friend]defferedWrapperWrite = null;
 			}
 
-			if (fileInfo.queuedToken == .LSquirly)
+			if (fileInfo.queuedTokens.HasFlag(.LSquirly))
 			{
 				switch (cursor.kind)
 				{
@@ -807,11 +849,10 @@ abstract class Cpp2BeefGenerator
 				default:
 					str.Append(" {}");
 				}
-				fileInfo.queuedToken = .None;
+				fileInfo.queuedTokens = .None;
 			}
 			else
-				fileInfo.queuedToken = .RSquirly;
-
+				fileInfo.queuedTokens |= .RSquirly;
 		}
 	}
 
@@ -1053,7 +1094,7 @@ abstract class Cpp2BeefGenerator
 		}
 		if (Clang.Cursor_IsInlineNamespace(cursor) != 0)
 		{
-			GetIndentation(Clang.GetCursorLocation(cursor), str);
+			GetIndentation(GetCursorAnchor(cursor), str);
 			str.Append("public static using ");
 			GetNameInBindings(cursor, str);
 			str.Append(";\n");
@@ -1215,11 +1256,61 @@ abstract class Cpp2BeefGenerator
 		str.Append(';');
 	}
 
+	int bitfieldUniquenessCounter = 0;
+	protected virtual void DumpBitfieldStorage()
+	{
+		str.Append("\n", cursorIndent, "private ");
+		Type(fileInfo.bitfield.type);
+		str.Append(" __bitfield_");
+		bitfieldUniquenessCounter++.ToString(str);
+		str.Append(';');
+		fileInfo.bitfield = default;
+	}
+
 	protected virtual void FieldDecl(CXCursor cursor)
 	{
+		let type = Clang.GetCursorType(cursor);
+		if (Clang.Cursor_IsBitField(cursor) != 0)
+		{
+			if (fileInfo.bitfield.type != default && Clang.EqualTypes(fileInfo.bitfield.type, type) == 0)
+				DumpBitfieldStorage();
+			if (fileInfo.bitfield == default)
+				fileInfo.bitfield.type = type;
+			int32 width = Clang.GetFieldDeclBitWidth(cursor);
+			Debug.Assert(width <= Clang.Type_GetSizeOf(type) * 8);
+			fileInfo.bitfield.curWidth += width;
+			if (fileInfo.bitfield.curWidth > Clang.Type_GetSizeOf(type) * 8)
+			{
+				DumpBitfieldStorage();
+				fileInfo.bitfield.curWidth = width;
+			}
+
+			str.Append("[Bitfield(.");
+			if (GetCursorSpelling!(cursor).IsEmpty)
+			{
+				str.Append("Private, .Bits(");
+				width.ToString(str);
+				str.Append("), \"__anon_bitfield_");
+				bitfieldUniquenessCounter++.ToString(str);
+				str.Append("\")]");
+			}
+			else
+			{
+				Flush();
+				AccessSpecifier(cursor);
+				str[0] = str[0].ToUpper;
+				str.Append(", .Bits(");
+				width.ToString(str);
+				str.Append("), \"");
+				GetNameInBindings(cursor, str);
+				str.Append("\")]");
+			}
+			return;
+		}
+
 		WriteCustomAttributes(cursor);
 		AccessSpecifier(cursor);
-		WriteTypeAndName(cursor, Clang.GetCursorType(cursor));
+		WriteTypeAndName(cursor, type);
 		str.Append(';');
 	}
 
@@ -1380,11 +1471,16 @@ abstract class Cpp2BeefGenerator
 		Clang.VisitChildren(cursor, (cursor, parent, client_data) =>
 		{
 			Self self = (.)Internal.UnsafeCastToObject(client_data);
+			if (self.fileInfo.bitfield != default && Clang.Cursor_IsBitField(cursor) == 0)
+				self.DumpBitfieldStorage();
 			self.WriteCursor(cursor);
 			if (Clang.Cursor_IsAnonymousRecordDecl(cursor) != 0)
 				self.str..TrimEnd()..Append(";");
 			return .Continue;
 		}, Internal.UnsafeCastToPtr(this));
+
+		if (fileInfo.bitfield != default)
+			DumpBitfieldStorage();
 	}
 
 	protected virtual void Enum(CXCursor cursor)