Unhandled type kind objCObject when trying to bind Foundation.framework on macOS

[LunaTheFoxgirl]

I need more or less to bind the entirety of Foundation.framework, but whenever anything depends on NSObject.h it falls apart.

luna@Dev-Mac objc-d % sudo dstep /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSString.h -o source/objc/string.d -ObjC
dstep: an unknown error occurred: core.exception.AssertError@dstep/translator/Type.d(623): Unhandled type kind objCObject
----------------
??:? _d_assert_msg [0x1008eab6f]
??:? immutable(char)[] dstep.translator.Type.translateType(dstep.translator.Context.Context, clang.c.Index.CXTypeKind, bool) [0x10091a697]
??:? dstep.translator.Output.SourceNode dstep.translator.Type.translateType(dstep.translator.Context.Context, clang.Cursor.Cursor, clang.Type.Type, bool, bool) [0x100916117]
??:? dstep.translator.Output.SourceNode dstep.translator.Type.translateObjCObjectPointerType(dstep.translator.Context.Context, clang.Cursor.Cursor, clang.Type.Type) [0x100918d13]
??:? dstep.translator.Output.SourceNode dstep.translator.Type.translateType(dstep.translator.Context.Context, clang.Cursor.Cursor, clang.Type.Type, bool, bool) [0x10091602f]
??:? dstep.translator.Output.SourceNode dstep.translator.Translator.translateFunction(dstep.translator.Context.Context, clang.Cursor.FunctionCursor, immutable(char)[], bool) [0x10092452f]
??:? void dstep.translator.objc.ObjcInterface.ObjcInterface!(dstep.translator.Output.ClassExtensionData).ObjcInterface.translateMethod(clang.Cursor.FunctionCursor, bool, immutable(char)[]) [0x100922977]
??:? int dstep.translator.objc.ObjcInterface.ObjcInterface!(dstep.translator.Output.ClassExtensionData).ObjcInterface.translate(dstep.translator.Output.Output).__lambda3().__foreachbody1(ref clang.Cursor.Cursor, ref clang.Cursor.Cursor) [0x1009224f7]
??:? int function(ref clang.Cursor.Cursor, ref clang.Cursor.Cursor) clang.Visitor.DeclarationVisitor.opApply(int delegate(ref clang.Cursor.Cursor, ref clang.Cursor.Cursor)).__foreachbody2 [0x10092254f]
??:? extern (C) clang.c.Index.CXChildVisitResult clang.Visitor.Visitor.visitorFunction(clang.c.Index.CXCursor, clang.c.Index.CXCursor, void*) [0x1009157e7]
??:? _ZN5clang8cxcursor13CursorVisitor5VisitE8CXCursorb [0x10c384f13]
??:? _ZN5clang8cxcursor13CursorVisitor23handleDeclForVisitationEPKNS_4DeclE [0x10c387007]
??:? _ZN5clang8cxcursor13CursorVisitor16VisitDeclContextEPNS_11DeclContextE [0x10c3870c7]
??:? _ZN5clang8cxcursor13CursorVisitor21VisitObjCCategoryDeclEPNS_16ObjCCategoryDeclE [0x10c388e5f]
??:? _ZN5clang8cxcursor13CursorVisitor13VisitChildrenE8CXCursor [0x10c385597]
??:? clang_visitChildren [0x10c393a83]
??:? void dstep.translator.objc.ObjcInterface.ObjcInterface!(dstep.translator.Output.ClassExtensionData).ObjcInterface.translate(dstep.translator.Output.Output) [0x100921f4b]
??:? void dstep.translator.Translator.Translator.translate(dstep.translator.Output.Output, clang.Cursor.Cursor, clang.Cursor.Cursor) [0x10092afdf]
??:? void dstep.translator.Translator.Translator.translateInGlobalScope(dstep.translator.Output.Output, clang.Cursor.Cursor, clang.Cursor.Cursor) [0x10092abab]
??:? int dstep.translator.Translator.Translator.translateCursors().__foreachbody3(ref clang.Cursor.Cursor, ref clang.Cursor.Cursor) [0x100959103]
??:? int function(ref clang.Cursor.Cursor, ref clang.Cursor.Cursor) clang.Visitor.InOrderVisitor.opApply(int delegate(ref clang.Cursor.Cursor, ref clang.Cursor.Cursor)).__foreachbody11 [0x100959307]
??:? extern (C) clang.c.Index.CXChildVisitResult clang.Visitor.Visitor.visitorFunction(clang.c.Index.CXCursor, clang.c.Index.CXCursor, void*) [0x1009157e7]
??:? _ZN5clang8cxcursor13CursorVisitor5VisitE8CXCursorb [0x10c384f13]
??:? _ZN5clang8cxcursor13CursorVisitor23handleDeclForVisitationEPKNS_4DeclE [0x10c387007]
??:? _ZN5clang8cxcursor13CursorVisitor16VisitDeclContextEPNS_11DeclContextE [0x10c3870c7]
??:? _ZN5clang8cxcursor13CursorVisitor13VisitChildrenE8CXCursor [0x10c38580f]
??:? clang_visitChildren [0x10c393a83]
??:? dstep.translator.Output.Output dstep.translator.Translator.Translator.translateCursors() [0x10092a68f]
??:? immutable(char)[] dstep.translator.Translator.Translator.translateToString() [0x10092a9ef]
??:? void dstep.translator.Translator.Translator.translate() [0x1009294b3]
??:? int dstep.driver.Application.Application.run().__foreachbody5(std.typecons.Tuple!(immutable(char)[], immutable(char)[], clang.TranslationUnit.TranslationUnit).Tuple) [0x100963ff3]
??:? void std.parallelism.ParallelForeach!(std.range.ZipShortest!(1, immutable(char)[][], immutable(char)[][], clang.TranslationUnit.TranslationUnit[]).ZipShortest).ParallelForeach.opApply(scope int delegate(std.typecons.Tuple!(immutable(char)[], immutable(char)[], clang.TranslationUnit.TranslationUnit).Tuple)).doIt() [0x10096419f]
??:? void std.parallelism.submitAndExecute(std.parallelism.TaskPool, void delegate()) [0x1008c8a23]
??:? void dstep.driver.Application.Application.run() [0x1009635db]
??:? _Dmain [0x10096afe7]
core.exception.AssertError@dstep/translator/Type.d(623): Unhandled type kind objCObject
----------------
??:? _d_assert_msg [0x1008eab6f]
??:? immutable(char)[] dstep.translator.Type.translateType(dstep.translator.Context.Context, clang.c.Index.CXTypeKind, bool) [0x10091a697]
??:? dstep.translator.Output.SourceNode dstep.translator.Type.translateType(dstep.translator.Context.Context, clang.Cursor.Cursor, clang.Type.Type, bool, bool) [0x100916117]
??:? dstep.translator.Output.SourceNode dstep.translator.Type.translateObjCObjectPointerType(dstep.translator.Context.Context, clang.Cursor.Cursor, clang.Type.Type) [0x100918d13]
??:? dstep.translator.Output.SourceNode dstep.translator.Type.translateType(dstep.translator.Context.Context, clang.Cursor.Cursor, clang.Type.Type, bool, bool) [0x10091602f]
??:? dstep.translator.Output.SourceNode dstep.translator.Translator.translateFunction(dstep.translator.Context.Context, clang.Cursor.FunctionCursor, immutable(char)[], bool) [0x10092452f]
??:? void dstep.translator.objc.ObjcInterface.ObjcInterface!(dstep.translator.Output.ClassExtensionData).ObjcInterface.translateMethod(clang.Cursor.FunctionCursor, bool, immutable(char)[]) [0x100922977]
??:? int dstep.translator.objc.ObjcInterface.ObjcInterface!(dstep.translator.Output.ClassExtensionData).ObjcInterface.translate(dstep.translator.Output.Output).__lambda3().__foreachbody1(ref clang.Cursor.Cursor, ref clang.Cursor.Cursor) [0x1009224f7]
??:? int function(ref clang.Cursor.Cursor, ref clang.Cursor.Cursor) clang.Visitor.DeclarationVisitor.opApply(int delegate(ref clang.Cursor.Cursor, ref clang.Cursor.Cursor)).__foreachbody2 [0x10092254f]
??:? extern (C) clang.c.Index.CXChildVisitResult clang.Visitor.Visitor.visitorFunction(clang.c.Index.CXCursor, clang.c.Index.CXCursor, void*) [0x1009157e7]
??:? _ZN5clang8cxcursor13CursorVisitor5VisitE8CXCursorb [0x10c384f13]
??:? _ZN5clang8cxcursor13CursorVisitor23handleDeclForVisitationEPKNS_4DeclE [0x10c387007]
??:? _ZN5clang8cxcursor13CursorVisitor16VisitDeclContextEPNS_11DeclContextE [0x10c3870c7]
??:? _ZN5clang8cxcursor13CursorVisitor21VisitObjCCategoryDeclEPNS_16ObjCCategoryDeclE [0x10c388e5f]
??:? _ZN5clang8cxcursor13CursorVisitor13VisitChildrenE8CXCursor [0x10c385597]
??:? clang_visitChildren [0x10c393a83]
??:? void dstep.translator.objc.ObjcInterface.ObjcInterface!(dstep.translator.Output.ClassExtensionData).ObjcInterface.translate(dstep.translator.Output.Output) [0x100921f4b]
??:? void dstep.translator.Translator.Translator.translate(dstep.translator.Output.Output, clang.Cursor.Cursor, clang.Cursor.Cursor) [0x10092afdf]
??:? void dstep.translator.Translator.Translator.translateInGlobalScope(dstep.translator.Output.Output, clang.Cursor.Cursor, clang.Cursor.Cursor) [0x10092abab]
??:? int dstep.translator.Translator.Translator.translateCursors().__foreachbody3(ref clang.Cursor.Cursor, ref clang.Cursor.Cursor) [0x100959103]
??:? int function(ref clang.Cursor.Cursor, ref clang.Cursor.Cursor) clang.Visitor.InOrderVisitor.opApply(int delegate(ref clang.Cursor.Cursor, ref clang.Cursor.Cursor)).__foreachbody11 [0x100959307]
??:? extern (C) clang.c.Index.CXChildVisitResult clang.Visitor.Visitor.visitorFunction(clang.c.Index.CXCursor, clang.c.Index.CXCursor, void*) [0x1009157e7]
??:? _ZN5clang8cxcursor13CursorVisitor5VisitE8CXCursorb [0x10c384f13]
??:? _ZN5clang8cxcursor13CursorVisitor23handleDeclForVisitationEPKNS_4DeclE [0x10c387007]
??:? _ZN5clang8cxcursor13CursorVisitor16VisitDeclContextEPNS_11DeclContextE [0x10c3870c7]
??:? _ZN5clang8cxcursor13CursorVisitor13VisitChildrenE8CXCursor [0x10c38580f]
??:? clang_visitChildren [0x10c393a83]
??:? dstep.translator.Output.Output dstep.translator.Translator.Translator.translateCursors() [0x10092a68f]
??:? immutable(char)[] dstep.translator.Translator.Translator.translateToString() [0x10092a9ef]
??:? void dstep.translator.Translator.Translator.translate() [0x1009294b3]
??:? int dstep.driver.Application.Application.run().__foreachbody5(std.typecons.Tuple!(immutable(char)[], immutable(char)[], clang.TranslationUnit.TranslationUnit).Tuple) [0x100963ff3]
??:? void std.parallelism.ParallelForeach!(std.range.ZipShortest!(1, immutable(char)[][], immutable(char)[][], clang.TranslationUnit.TranslationUnit[]).ZipShortest).ParallelForeach.opApply(scope int delegate(std.typecons.Tuple!(immutable(char)[], immutable(char)[], clang.TranslationUnit.TranslationUnit).Tuple)).doIt() [0x10096419f]
??:? void std.parallelism.submitAndExecute(std.parallelism.TaskPool, void delegate()) [0x1008c8a23]
??:? void dstep.driver.Application.Application.run() [0x1009635db]
??:? _Dmain [0x10096afe7]