Files
sx/examples/1401-ffi-jni-call-02-void.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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// Phase 1 step 1.15 (PLAN-FFI.md): `#jni_call(void)` codegen.
//
// `#jni_call(T)(env, target, "method_name", "(Sig)RetSig", args...)`
// dispatches a JNI instance-method call. The lowering hand-emits the
// vtable indirection:
//
// ifs = *env // JNINativeInterface*
// cls = ifs->GetObjectClass(env, target)
// mid = ifs->GetMethodID(env, cls, name, sig)
// ifs->Call<Type>Method(env, target, mid, args...)
//
// Phase 1.17 introduces method-ID caching via static slots populated
// at module-init; this step keeps the per-call-site lookup.
//
// Host can't dlopen libjvm via the JIT, so the JNI body is gated
// behind `inline if OS == .android`. The macOS test path strips the
// body and prints "skipped"; the cross_compile.sh Android target
// verifies that the gated body actually compiles + links against
// libjvm in the Android sysroot.
#import "modules/std.sx";
#import "modules/build.sx";
// Android target requires a `#jni_main` Activity declaration to
// satisfy the entry-point check. An empty stub class is enough — this
// file is testing `#jni_call` lowering, not Activity wiring.
SxJniCallVoidStub :: #jni_main #jni_class("co/swipelab/sxjnicall/SxJniCallVoidStub") { }
main :: () -> s32 {
inline if OS == .android {
// Real Android entry passes env + target via the user's `onCreate`
// / `#jni_attach`. For the cross-compile-only test we just need
// the lowering to emit valid IR; runtime correctness is exercised
// by the chess sx_android_query_safe_insets path.
env : *void = null;
target : *void = null;
#jni_env(env) {
#jni_call(void)(target, "noop", "()V");
}
}
inline if OS != .android {
print("skipped (not android)\n");
}
0
}