Files
sx/examples/1607-platform-uikit-app.sx
agra 12bf61a9fc std: restructure step 3 — ffi/ moves, build.sx, math dir spelling, fixtures
- objc.sx, objc_block.sx (from std/) + sdl3/opengl/raylib/stb/stb_truetype/
  wasm vendor bindings (from modules/ root) -> modules/ffi/
- std/uikit.sx deleted: platform/uikit.sx already declares UIApplicationMain
  and imports objc; '#framework "UIKit"' cannot live in a file imported on
  macOS targets (unconditional link directive, UIKit is iOS-only), so the
  three iOS-only examples carry the 3-line glue inline. 1607/1608/1616 also
  un-rotted (dead ns_string -> 'xx "..."' Into conversions, callconv(.c)
  msgSend fn-ptrs) — all three build for ios-sim/ios again.
- math/math.sx -> math/scalar.sx; one spelling '#import "modules/math"'
  everywhere (4 pinned IR snapshots regenerated: dir import adds Vec2/Mat4
  to the type tables).
- compiler.sx -> build.sx (imports, CLAUDE.md bundling table, specs.md).
- testpkg/ + test_c.sx -> tests/fixtures/ (resolve CWD-relative from repo
  root, same as vendors/).
- library-internal imports use full modules/... paths (std.sx tail,
  platform/bundle.sx, fixtures).
2026-06-11 08:37:22 +03:00

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// Minimal iOS app entry point — pure sx, no .m files.
//
// 1. Register a class `SxAppDelegate : UIResponder <UIApplicationDelegate>`
// dynamically, with one method:
// application:didFinishLaunchingWithOptions: returns YES (BOOL 1).
// 2. Call UIApplicationMain(0, null, null, @"SxAppDelegate") to hand off to
// UIKit's run loop. This blocks until the app exits.
//
// After install + launch, the simulator shows the default black screen
// (UIWindow not created — that's 5.8) and the AppDelegate callback fires
// once at startup. The process stays alive because UIApplicationMain
// drives the iOS run loop.
#import "modules/std.sx";
#import "modules/ffi/objc.sx";
#framework "UIKit";
UIApplicationMain :: (argc: s32, argv: *void, principal_class: *NSString, delegate_class: *NSString) -> s32 #foreign;
// IMP for application:didFinishLaunchingWithOptions:
// Obj-C: -(BOOL)application:(UIApplication *)app didFinishLaunchingWithOptions:(NSDictionary *)opts
// Type encoding: "c@:@@" -- BOOL (signed char), self, _cmd, id, id
did_finish_launching :: (self: *void, _cmd: *void, app: *void, opts: *void) -> u8 callconv(.c) {
NSLog(xx "[sx] application:didFinishLaunchingWithOptions: called\n");
return 1; // YES
}
main :: () -> s32 {
// SxAppDelegate : UIResponder. We deliberately don't try
// `class_addProtocol(UIApplicationDelegate)` — the linker dead-strips the
// protocol metadata from UIKit when nothing references it at compile
// time, and the C runtime can't look it up by name. UIApplicationMain
// duck-types on the method name, so this works without formal conformance.
UIResponder := objc_getClass("UIResponder".ptr);
SxAppDelegate := objc_allocateClassPair(UIResponder, "SxAppDelegate".ptr, 0);
sel := sel_registerName("application:didFinishLaunchingWithOptions:".ptr);
class_addMethod(SxAppDelegate, sel, xx did_finish_launching, "c@:@@".ptr);
objc_registerClassPair(SxAppDelegate);
// Hand off to the iOS run loop. Never returns under normal operation.
return UIApplicationMain(0, xx 0, xx 0, xx "SxAppDelegate");
}