908b6d19a3
Last return-type variant in the matrix. JNI's jobject is a pointer (LocalRef) — sx's `*void` maps to LLVM `ptr` directly. CallObjectMethod is at vtable slot 34. IR snapshot captures today's `ret ptr undef`. Next commit adds the `.ptr => Jni.CallObjectMethod` arm. LocalRef lifetime: the returned jobject is a JNI LocalRef bounded by the native frame. Chains of calls within one frame consume LocalRefs inline; calls that need to escape the frame should be promoted via `NewGlobalRef` (already wired in the slot-interning path). Step 1.22 doesn't introduce automatic cleanup — chess use consumes objects inline, matching the pattern in sx_android_jni.c.
27 lines
842 B
Plaintext
27 lines
842 B
Plaintext
// Phase 1 step 1.22 (PLAN-FFI.md): `#jni_call(*void)` (jobject
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// return). Last return-type variant in the matrix. The returned
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// jobject is a JNI LocalRef — its lifetime is bounded by the native
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// frame, so chains of calls within one frame don't need explicit
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// cleanup, but calls that escape (cached cross-frame) should be
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// promoted via `NewGlobalRef`. For chess Android use the returned
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// jobject is consumed inline by the next `#jni_call`, so no cleanup
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// is needed here.
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//
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// CallObjectMethod lives at vtable slot 34.
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#import "modules/std.sx";
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g_should_call : bool = false;
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get_window :: (env: *void, activity: *void) -> *void {
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#jni_call(*void)(env, activity, "getWindow", "()Landroid/view/Window;");
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}
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main :: () -> s32 {
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if g_should_call {
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_ := get_window(null, null);
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}
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print("ok\n");
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0;
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}
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