add bindings

2026-06-15 16:28:17 +02:00
commit 14a89ef1e3
11 changed files with 947 additions and 0 deletions
@@ -0,0 +1,9 @@
+FileVersion = 1
+
+[Project]
+Name = "MicroUI.Setup"
+StartupObject = "MicroUI.Setup.Program"
+
+[Dependencies]
+corlib = "*"
+"Cpp2Beef.git" = {Git = "https://git.unicon-gmbh.de/Rune/Cpp2Beef.git"}
@@ -0,0 +1,8 @@
+FileVersion = 1
+
+[Workspace]
+StartupProject = "MicroUI.Setup"
+
+[Projects]
+"MicroUI.Setup" = {Path = "."}
+"Cpp2Beef.git" = {Git = "https://git.unicon-gmbh.de/Rune/Cpp2Beef.git"}
@@ -0,0 +1,254 @@
+using System;
+using System.IO;
+using System.Collections;
+using System.Diagnostics;
+
+using Cpp2Beef;
+using LibClang;
+
+namespace MicroUI.Setup;
+
+class MicroUIGenerator : Cpp2BeefGenerator, this(Span<char8*> args)
+{
+	protected override Span<char8*> Args => args;
+	protected override Flags Flags => .None;
+
+	StreamWriter writer = new .()..Create("../src/MicroUI.bf")..Write("""
+		// This file was generated by Cpp2Beef
+
+		using System;
+		using System.Interop;
+
+		namespace MicroUI;
+
+
+		""") ~ delete _;
+
+	protected override StreamWriter GetWriterForHeader(StringView header)
+	{
+		if (header.EndsWith("microui.h"))
+			return writer;
+		return null;
+	}
+
+	protected override Block GetCursorBlock(CXCursor cursor)
+	{
+		if (cursor.kind == .FunctionDecl)
+			return .CustomBlock("MicroUI");
+		return base.GetCursorBlock(cursor);
+	}
+
+	static int enumParentLen;
+	protected override void HandleCursor(CXCursor cursor)
+	{
+		switch (cursor.kind)
+		{
+		case .MacroDefinition:
+			let spelling = GetCursorSpelling!(cursor);
+			if (spelling == "MU_REAL")
+				return;
+		case .EnumDecl:
+			BeginCursor(cursor);
+			Clang.VisitChildren(cursor, (cursor, parent, client_data) =>
+			{
+				(Self self, int* parentLen) = *(.)client_data;
+				var spelling = GetCursorSpelling!(cursor);
+				Runtime.Assert(spelling.StartsWith("MU_"));
+				spelling.RemoveFromStart(3);
+				spelling = spelling[..<spelling.IndexOf('_')];
+				*parentLen = spelling.Length + 4;
+				self.str.Append("[CRepr] enum mu_");
+				self.str.Append(spelling);
+				return .Break;
+			}, &(this, &enumParentLen));
+			BeginBody!(cursor);
+			Clang.VisitChildren(cursor, (cursor, parent, client_data) =>
+			{
+				Self self = (.)Internal.UnsafeCastToObject(client_data);
+				self.HandleCursor(cursor);
+				return .Continue;
+			}, Internal.UnsafeCastToPtr(this));
+			enumParentLen = 0;
+		case .StructDecl:
+			if (Clang.GetCursorSemanticParent(cursor).kind == .StructDecl)
+				return;
+			if (Clang.VisitChildren(cursor, (cursor, parent, client_data) =>
+				{
+					return .Break;
+				}, null) == 0) return;
+			BeginCursor(cursor);
+			Record(cursor);
+			return;
+		case .FieldDecl:
+			let spelling = GetCursorSpelling!(cursor);
+			if (spelling.EndsWith("_stack") || spelling.EndsWith("_list"))
+			{
+				BeginCursor(cursor);
+				str.Append("[CRepr] ");
+				AccessSpecifier(cursor);
+				str.Append("struct { public c_int idx; public c_char[MU_");
+				for (let char in spelling)
+					if (char.IsLetter)
+						str.Append(char.ToUpper);
+				str.Append("_SIZE] items; } ", spelling);
+				str.Append(';');
+				return;
+			}
+		default:
+		}
+		base.HandleCursor(cursor);
+	}
+
+	protected override void GetNameInBindings(CXCursor cursor, String outString)
+	{
+		if (!cGetNameInBindings(cursor, outString))
+			base.GetNameInBindings(cursor, outString);
+	}
+
+	protected override void Type(CXType type, TypeParamMode paramMode = .None)
+	{
+		if (!cType(type, str, currentCursor))
+			base.Type(type, paramMode);
+	}
+
+	public static bool cGetNameInBindings(LibClang.CXCursor cursor, String outString)
+	{
+		switch (cursor.kind)
+		{
+		case .FunctionDecl:
+			var spelling = GetCursorSpelling!(cursor);
+			Runtime.Assert(spelling.StartsWith("mu_"));
+			spelling.RemoveFromStart(3);
+			UpperSnakeCase2PascalCase(spelling, outString);
+		case .EnumConstantDecl:
+			var spelling = GetCursorSpelling!(cursor);
+			spelling.RemoveFromStart(enumParentLen);
+			UpperSnakeCase2PascalCase(spelling, outString);
+		default:
+			return false;
+		}
+		return true;
+	}
+
+	public static bool cType(CXType type, String str, CXCursor cursor)
+	{
+		if (type.kind == .Int && cursor.kind == .FieldDecl || cursor.kind == .ParmDecl)
+		{
+			let spelling = GetCursorSpelling!(cursor);
+			switch (spelling)
+			{
+			case "key": str.Append("mu_KEY");
+			case "type": str.Append("mu_COMMAND");
+			case "colorid": str.Append("mu_COLOR");
+			case "opt": str.Append("mu_OPT");
+			case "icon": str.Append("mu_ICON");
+			case "btn": str.Append("mu_MOUSE");
+			default:
+				return false;
+			}
+			return true;
+		}
+		if (type.kind == .Int && cursor.kind == .FunctionDecl)
+		{
+			str.Append("mu_RES");
+			return true;
+		}
+
+		return false;
+	}
+}
+
+class MicroUIWrapperGenerator : Cpp2BeefGenerator, this(Span<char8*> args)
+{
+	protected override Span<char8*> Args => args;
+	protected override Flags Flags => .None;
+
+	StreamWriter writer = new .()..Create("../src/Wrapper.bf")..Write("""
+		// This file was generated by Cpp2Beef
+
+		using System;
+		using System.Interop;
+
+		namespace MicroUI;
+
+		extension MicroUIContext
+		{
+
+		""") ~ delete _..Write("}\n");
+
+	protected override StreamWriter GetWriterForHeader(StringView header)
+	{
+		if (header.EndsWith("microui.h"))
+			return writer;
+		return null;
+	}
+
+	protected override Block GetCursorBlock(CXCursor cursor)
+	{
+		return .NoBlock;
+	}
+
+	protected override void GetNameInBindings(CXCursor cursor, String outString)
+	{
+		if (!MicroUIGenerator.cGetNameInBindings(cursor, outString))
+			base.GetNameInBindings(cursor, outString);
+	}
+
+	protected override void Type(CXType type, TypeParamMode paramMode = .None)
+	{
+		if (!MicroUIGenerator.cType(type, str, currentCursor))
+			base.Type(type, paramMode);
+	}
+
+	protected override void HandleCursor(CXCursor cursor)
+	{
+		if (cursor.kind != .FunctionDecl || GetCursorSpelling!(cursor) == "mu_init") return;
+		Flush();
+		Method_Parameters(cursor);
+		StringView parameters = scope String(str);
+		str.Clear();
+		if (!parameters.StartsWith("mu_Context* ctx"))
+			return;
+		parameters.RemoveFromStart("mu_Context* ctx".Length);
+		if (parameters.StartsWith(", "))
+			parameters.RemoveFromStart(2);
+		BeginCursor(cursor);
+		AccessSpecifier(cursor);
+		WriteTypeAndName(cursor, Clang.GetCursorResultType(cursor));
+		str.Append('(');
+		str.Append(parameters, ") => MicroUI.");
+		GetNameInBindings(cursor, str);
+		str.Append("(&");
+
+		let numArgs = Clang.Cursor_GetNumArguments(cursor);
+		for (let i < numArgs)
+		{
+			if (i > 0) str.Append(", ");
+			str.Append(GetCursorSpelling!(Clang.Cursor_GetArgument(cursor, (.)i)));
+		}
+		if (Clang.Cursor_IsVariadic(cursor) != 0)
+		{
+			if (numArgs > 0) str.Append(", ");
+			str.Append("...");
+		}
+		str.Append(");");
+	}
+}
+
+class Program
+{
+	[CLink] static extern int32 system(char8*);
+
+	public static int Main(String[] args)
+	{
+		if (system("git -C .. submodule update") != 0)
+		{
+			Console.WriteLine("Failed to fetch microui, check your internet connection");
+			return 1;
+		}
+
+		scope MicroUIGenerator(char8*[?]("--language=c")).Generate("../microui/src/microui.h");
+		scope MicroUIWrapperGenerator(char8*[?]("--language=c")).Generate("../microui/src/microui.h");
+		return 0;
+	}
+}