Files
sx/examples/1311-ffi-objc-class-ivar-registration.sx
agra 4e942b5373 test: migrate examples to XXXX-category-name layout + split expected streams
Rename all example tests/companions to the XXXX-category-test-name scheme
(per-category 100-blocks: basic 0010, types 0100, ... errors 1000,
diagnostics 1100, ffi 1200, ffi-objc 1300, ffi-jni 1400, vectors 1500,
platform 1600). Companions and dir/C fixtures move in lockstep with their
parent test; #import/#source/#include paths rewritten to match.

Expected output now lives in examples/expected/ (a sibling dir of the
tests) split into three streams per the new convention:
  <name>.exit / <name>.stdout / <name>.stderr  (+ optional <name>.ir)

run_examples.sh rewritten: scans examples/ and issues/ for an
expected/<name>.exit marker, captures stdout and stderr separately (no
more 2>&1), compares each stream + exit + optional IR snapshot.

Behavior validated unchanged: every renamed test reproduces its prior
merged output + exit (diffs limited to file paths/basenames embedded in
diagnostics + traces, which correctly reflect the new names). Suite:
292 passed, 0 failed. 50-smoke.sx split + issue relocation + docs follow
in subsequent commits.
2026-06-01 19:05:15 +03:00

52 lines
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// M1.2 A.4b.i — '__sx_state' ivar registration on sx-defined
// '#objc_class'.
//
// Class-pair init now:
// 1. allocs the class pair
// 2. registers a single '__sx_state : *void' ivar
// 3. finalises the class
// 4. stores the runtime Ivar handle in a per-class global
// ('__<ClassName>_state_ivar') so IMP trampolines can later
// 'object_getIvar' the state struct pointer.
//
// Round-trip below: after main starts, look up SxFoo, then ask
// the runtime if SxFoo has an Ivar named '__sx_state'. Returns
// non-null iff registration succeeded.
//
// IMP trampolines (A.4b.ii) and the '+alloc' / '-dealloc'
// overrides (A.5 / A.6) come next.
#import "modules/std.sx";
#import "modules/compiler.sx";
#import "modules/std/objc.sx";
class_getInstanceVariable :: (cls: *void, name: [*]u8) -> *void #foreign objc;
SxFoo :: #objc_class("SxFoo") {
counter: s32;
bump :: (self: *Self) {
self.counter += 1;
}
}
main :: () -> s32 {
inline if OS == .macos {
cls : Class = objc_getClass("SxFoo".ptr);
if cls == null {
print("FAIL: SxFoo not registered\n");
return 1;
}
iv := class_getInstanceVariable(cls, "__sx_state".ptr);
if iv == null {
print("FAIL: __sx_state ivar missing\n");
return 1;
}
print("ivar: __sx_state\n");
}
inline if OS != .macos {
print("ivar: __sx_state\n");
}
0;
}