// Regression: `obj.method()` foreign-class dispatch with a `float` // return type used to silently emit `LLVMGetUndef` because the // `CallMethod` switch in `emit_llvm.zig` didn't cover `.f32`. // Combined with multiple such calls inlined as args to a single // outer call (`f(o.a(), o.b(), o.c())`), every arg after the first // went out as `undef` — exactly the chess Android touch failure // (`MotionEvent.getX()` + `getY()` came through as `undef`s into // `sx_android_push_touch`). // // This test exercises BOTH the `.f32` jdispatch slot AND the // "multiple foreign-class method calls as args to one outer call" // pattern. The bodies are gated behind a runtime-false flag so the // JNI lookups never execute (no JVM in the test runtime), but the // codegen path still has to emit the calls correctly. #import "modules/std.sx"; MotionEvent :: #foreign #jni_class("android/view/MotionEvent") { getAction :: (self: *Self) -> i32; getX :: (self: *Self) -> f32; getY :: (self: *Self) -> f32; } sx_consume_touch :: (action: i32, x: f32, y: f32) { // Black-hole call so the args aren't dead-stripped before LLVM // verification gets a chance to look at the call site. if action == 0 and x == 0.0 and y == 0.0 { print("zero\n"); } } g_should_call : bool = false; drive_touch :: (env: *void, ev: *MotionEvent) { #jni_env(env) { // The bug: getX() / getY() lowered to `undef` floats and the // call to sx_consume_touch passed garbage. Post-fix, all three // JNI calls emit proper CallMethod dispatches. sx_consume_touch(ev.getAction(), ev.getX(), ev.getY()); } } main :: () -> i32 { if g_should_call { drive_touch(null, null); } print("ok\n"); 0 }