add code
This commit is contained in:
Rune
353
Setup/src/Program.bf
Normal file
353
Setup/src/Program.bf
Normal file
@@ -0,0 +1,353 @@
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using System;
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using System.IO;
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using System.Collections;
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using System.Diagnostics;
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using Cpp2Beef;
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using LibClang;
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namespace SDL3.Setup;
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class SDL3Generator : Cpp2BeefGenerator, this(Span<char8*> args)
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{
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protected override Span<char8*> Args => args;
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protected override Flags Flags => .None;
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private BumpAllocator alloc = new .() ~ delete _;
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append Dictionary<String, StreamWriter> writers = .(16);
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protected override StreamWriter GetWriterForHeader(StringView header)
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{
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String filename = Path.GetFileNameWithoutExtension(header, ..scope .(64));
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if (!filename.StartsWith("SDL_") || filename == "SDL_begin_code") return null;
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if (writers.TryAdd(filename, let keyPtr, let valuePtr))
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{
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*keyPtr = new:alloc .(filename);
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*valuePtr = new:alloc .()..Create(scope $"../src/{filename}.bf")..Write("""
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// This file was generated by Cpp2Beef
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using System;
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using System.Interop;
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using static SDL3.SDL;
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namespace SDL3;
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""");
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}
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return *valuePtr;
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}
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protected override Block GetCursorBlock(CXCursor cursor)
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{
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if (Path.GetFileName(GetFilePath!(fileInfo.file), ..scope .(128)).StartsWith("SDL_test"))
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return .CustomBlock("SDLTest");
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return .CustomBlock("SDL");
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}
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protected override void HandleCursor(CXCursor cursor)
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{
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switch (cursor.kind)
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{
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case .MacroDefinition:
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if (Clang.Cursor_IsMacroFunctionLike(cursor) != 0 && GetFilePath!(fileInfo.file).EndsWith("SDL_version.h"))
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{
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BeginCursor(cursor);
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let tokens = ScopeTokenize!(cursor, unit);
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WriteCustomAttributes(cursor);
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str.Append("public static ");
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if (GetCursorSpelling!(cursor) == "SDL_VERSION_ATLEAST")
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str.Append("bool ");
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else
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str.Append("c_int ");
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GetNameInBindings(cursor, str);
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bool inArgs = true;
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for (let token in tokens[1...])
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{
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if (inArgs)
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{
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let spelling = GetTokenSpelling!(token);
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if (spelling == ")")
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{
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inArgs = false;
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str.Append(") => ");
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continue;
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}
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if (Clang.GetTokenKind(token) == .Identifier)
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str.Append("c_int ");
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str.Append(spelling);
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if (spelling == ",")
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str.Append(' ');
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}
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else
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WriteToken(token);
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}
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str.Append(';');
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return;
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}
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let spelling = GetCursorSpelling!(cursor);
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if (spelling.StartsWith("SDL_PRI") || spelling.StartsWith("VK_DEFINE_"))
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return;
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switch (spelling)
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{
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case "FONT_LINE_HEIGHT":
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BeginCursor(cursor);
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str.Append("public static c_int FONT_LINE_HEIGHT => (FONT_CHARACTER_SIZE + 2);");
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return;
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case "PFN_xrGetInstanceProcAddr":
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BeginCursor(cursor);
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str.Append("public typealias PFN_xrGetInstanceProcAddr = SDL.FunctionPointer;");
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return;
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case "main", "SDL_SIZE_MAX", "SDL_FUNCTION", "SDL_FILE", "SDL_ASSERT_FILE", "SDL_LINE", "SDL_SCOPED_CAPABILITY", "SDL_NO_THREAD_SAFETY_ANALYSIS":
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return;
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}
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case .TypedefDecl:
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String prefix = scope .(64);
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var spelling = GetCursorSpelling!(cursor);
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if (spelling == "SDL_Keycode")
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prefix.Set("SDLK_");
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else
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{
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if (!spelling.StartsWith("SDL_")) fallthrough;
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spelling.RemoveFromStart(4);
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/*if (GetTypeSpelling!(Clang.GetTypedefDeclUnderlyingType(cursor)) != "Uint32")
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fallthrough;*/
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if (spelling == "TrayEntryFlags")
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spelling = "Trayentry";
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else if (spelling == "MouseButtonFlags")
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spelling = "Button";
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else if (spelling.EndsWith("Flags"))
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spelling.RemoveFromEnd(5);
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else if (spelling.EndsWith("Flag"))
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spelling.RemoveFromEnd(4);
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/*else if (spelling.EndsWith("ID"))
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spelling.RemoveFromEnd(2);*/
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else if (spelling == "BlendMode")
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spelling = "Blendmode";
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else if (spelling == "GLContextResetNotification")
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spelling = "GlContextReset";
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else if (spelling == "GLProfile")
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spelling = "GlContextProfile";
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else if (spelling == "Keycode")
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spelling = "K";
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else if (spelling != "GPUShaderFormat")
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fallthrough;
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if (spelling.StartsWith("GL"))
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{
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spelling = scope:: String(spelling);
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spelling[1] = 'l';
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}
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prefix.Append("SDL");
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if (spelling.StartsWith("GPU"))
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{
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prefix.Append("_GPU_");
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for (let c in spelling[3...])
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prefix.Append(c.ToUpper);
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prefix.Append('_');
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}
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else
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{
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for (let c in spelling)
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{
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if (c.IsUpper) prefix.Append('_');
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prefix.Append(c.ToUpper);
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}
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prefix.Append('_');
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}
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}
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BeginCursor(cursor);
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if (spelling == "Button") str.Append("[AllowDuplicates] ");
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AccessSpecifier(cursor);
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str.Append("enum ");
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GetNameInBindings(cursor, str);
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str.Append(" : ");
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Type(Clang.GetTypedefDeclUnderlyingType(cursor));
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void FixCurly()
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{
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if (fileInfo.queuedTokens.HasFlag(.LSquirly))
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str.Append("\n{");
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if (fileInfo.queuedTokens.HasFlag(.RSquirly))
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str.Append("\n}");
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else
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str.Append("\n\t");
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fileInfo.queuedTokens = .None;
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}
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bool isSDL_GLContextFlag = spelling == "GlContext";
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{
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BeginBody!(cursor);
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for (let macro in this.[Friend]unitMacros)
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{
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let macroCursor = macro.value;
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if (Clang.Cursor_IsMacroFunctionLike(macroCursor) != 0)
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continue;
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if (Clang.GetFileLocation(Clang.GetCursorLocation(macroCursor), ..?, ?, ?, ?) != fileInfo.file)
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continue;
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var macroSpelling = GetCursorSpelling!(macroCursor);
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if (!macroSpelling.StartsWith(prefix))
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continue;
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if (isSDL_GLContextFlag)
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{
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if (!macroSpelling.EndsWith("_FLAG"))
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continue;
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macroSpelling.RemoveFromEnd(5);
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}
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macroSpelling.RemoveFromStart(prefix.Length);
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BeginCursor(macroCursor);
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FixCurly();
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if (macroSpelling[0].IsDigit) str.Append('_');
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UpperSnakeCase2PascalCase(macroSpelling, str);
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let tokens = ScopeTokenize!(macroCursor, unit);
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AllWhiteSpaceBetween(Clang.GetRangeEnd(Clang.GetTokenExtent(unit, tokens[0])), Clang.GetRangeStart(Clang.GetTokenExtent(unit, tokens[1])));
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str.Append("= ");
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WriteTokens(tokens[1...], Clang.GetNullLocation(), .Punctuation);
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str.Append(',');
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@macro.Remove();
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WriteComments(Clang.GetCursorLocation(macroCursor));
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}
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}
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FixCurly();
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return;
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default:
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}
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base.HandleCursor(cursor);
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}
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protected override void GetNameInBindings(CXCursor cursor, String outString)
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{
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bool RemovePrefix(ref StringView view)
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{
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if (view.StartsWith("SDLTest_")) view.RemoveFromStart(8);
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else if (view.StartsWith("SDL_")) view.RemoveFromStart(4);
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else return false;
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return true;
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}
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var spelling = GetCursorSpelling!(cursor);
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if (!RemovePrefix(ref spelling))
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{
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if (cursor.kind == .MacroDefinition)
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switch (spelling)
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{
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case "NULL": outString.Append("null"); return;
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case "TRUE": outString.Append("true"); return;
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case "FALSE": outString.Append("false"); return;
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}
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base.GetNameInBindings(cursor, outString);
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return;
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}
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switch (cursor.kind)
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{
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case .EnumConstantDecl:
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var parentSpelling = GetCursorSpelling!(Clang.GetCursorSemanticParent(cursor));
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if (parentSpelling == "SDL_GPUTextureFormat")
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{
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spelling.RemoveFromStart("GPU_TEXTUREFORMAT_".Length);
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outString.Append(spelling);
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break;
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}
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StringView name = UpperSnakeCase2PascalCase(spelling, ..scope .(spelling.Length));
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switch (parentSpelling)
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{
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case "SDL_AudioFormat": parentSpelling = "Audio";
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case "SDL_AssertState": parentSpelling = "Assertion";
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case "SDL_GamepadBindingType": parentSpelling = "GamepadBindtype";
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case "SDL_RendererLogicalPresentation": parentSpelling = "LogicalPresentation";
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default:
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RemovePrefix(ref parentSpelling);
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}
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for (let c in parentSpelling)
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{
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if (name[0].ToLower == c.ToLower)
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name.RemoveFromStart(1);
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else
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break;
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}
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if (name[0].IsDigit)
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outString.Append('_');
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outString.Append(name);
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default:
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outString.Append(spelling);
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}
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}
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protected override void WriteToken(CXToken token)
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{
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var spelling = GetTokenSpelling!(token);
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switch (spelling)
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{
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case "size_t": str.Append("c_size"); return;
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case "SDL_BUTTON_LEFT": str.Append("Left"); return;
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case "SDL_BUTTON_MIDDLE": str.Append("Middle"); return;
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case "SDL_BUTTON_RIGHT": str.Append("Right"); return;
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case "SDL_BUTTON_X1": str.Append("X1"); return;
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case "SDL_BUTTON_X2": str.Append("X2"); return;
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}
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if (!spelling.StartsWith("SDL_") || !spelling.EndsWith("ID"))
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{
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base.WriteToken(token);
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return;
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}
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spelling.RemoveFromStart(4);
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str.Append("SDL.");
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str.Append(spelling);
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}
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protected override bool IsOutParam(CXCursor arg, CXCursor method)
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{
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let comment = Clang.Cursor_GetParsedComment(method);
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let spelling = GetCursorSpelling!(arg);
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for (let i < Clang.Comment_GetNumChildren(comment))
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{
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let param = Clang.Comment_GetChild(comment, i);
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if (Clang.Comment_GetKind(param) != .ParamCommand ||
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ScopeCXString!(Clang.ParamCommandComment_GetParamName(param)) != spelling) continue;
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let paragraph = Clang.BlockCommandComment_GetParagraph(param);
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if (Clang.Comment_GetNumChildren(paragraph) == 0) continue;
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let paragraphChild = Clang.Comment_GetChild(paragraph, 0);
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if (Clang.Comment_GetKind(paragraphChild) != .Text) continue;
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StringView paragraphText = ScopeCXString!(Clang.TextComment_GetText(paragraphChild))..TrimStart();
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if (paragraphText.StartsWith("a pointer filled in") || paragraphText.StartsWith("a pointer to receive")) return true;
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else break;
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}
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return base.IsOutParam(arg, method);
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}
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}
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class Program
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{
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[CLink] static extern int32 system(char8*);
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public static int Main(String[] args)
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{
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//Runtime.Assert(system("git -C .. submodule update") == 0, "Failed to fetch SDL3, check your internet connection");
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{
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StreamWriter all = scope .()..Create("SDL3_all.h");
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for (let file in Directory.EnumerateFiles("../SDL/include/SDL3"))
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{
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let filename = file.GetFileName(..scope .(64));
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if (filename == "SDL_oldnames.h" || filename == "SDL_egl.h" || filename == "SDL_intrin.h" || filename == "SDL_endian.h" ||
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filename == "SDL_platform_defines.h" || filename == "SDL_begin_code.h" || filename == "SDL_close_code.h" || filename.StartsWith("SDL_opengl"))
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continue;
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all.Write("#include <SDL3/");
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all.Write(filename);
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all.Write(">\n");
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}
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}
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SDL3Generator generator = scope .(char8*[?]("--language=c", "-I../SDL/include",
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"-DSDL_oldnames_h_", "-DSDL_platform_defines_h_", "-DSDL_endian_h_",
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"-DCrcUint32=Uint32", "-DCrcUint8=Uint8",
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"-DSDL_SLOW_MEMCPY", "-DSDL_SLOW_MEMMOVE", "-DSDL_SLOW_MEMSET", "-DSDL_DISABLE_ALLOCA", "-DSDL_DISABLE_ANALYZE_MACROS"));
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generator.Generate("SDL3_all.h", null);
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return 0;
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}
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}
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