Files
sx/examples/1607-platform-uikit-app.sx
agra d8076b9333 lang: rename signed integer types sN -> iN
Surface rename of the signed integer family: s1..s64 become i1..i64
(u1..u64, usize, isize unchanged). 'string' keeps the s-prefix arm in
name classification; width parsing moves to the i-prefix arm next to
isize.

Internal TypeId tags follow the surface (.s8/.s16/.s32/.s64 ->
.i8/.i16/.i32/.i64), as do mono-key mangle fragments (ptr_i64,
tu_i64_bool) and all display/diagnostic formatting (i{d}).

Migrated in the same sweep: stdlib + examples + issue repros + FFI C
companions (shared symbol names like ffi_id_i64), expected
stdout/stderr/ir snapshots, specs.md, readme.md, CLAUDE.md/AGENTS.md,
implementation_plan.md, docs/, issue writeups. Vendored stb_image and
historical flow state left untouched.

zig build test: 426/426; examples suite: 595/595.
2026-06-12 09:31:53 +03:00

46 lines
2.1 KiB
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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: i32, argv: *void, principal_class: *NSString, delegate_class: *NSString) -> i32 #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 :: () -> i32 {
// 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");
}