4e942b5373
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.
29 lines
1.0 KiB
Plaintext
29 lines
1.0 KiB
Plaintext
// Obj-C runtime FFI smoke test: round-trip a string through NSString.
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//
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// Demonstrates the typed-fn-pointer cast idiom for `objc_msgSend`. Each
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// shape we invoke gets its own variable typed with the exact ABI:
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//
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// msg_3 : (*void, *void, [*]u8) -> *void = xx objc_msgSend;
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// msg_2 : (*void, *void) -> [*]u8 = xx objc_msgSend;
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//
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// On ARM64 Apple, objc_msgSend doesn't take a varargs path — invoking it
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// through a typed fn-pointer is the only correct way to land args in the
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// right registers.
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#import "modules/std.sx";
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#import "modules/std/objc.sx";
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main :: () -> s32 {
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ns_class := objc_getClass("NSString".ptr);
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sel_with_utf8 := sel_registerName("stringWithUTF8String:".ptr);
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sel_utf8 := sel_registerName("UTF8String".ptr);
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msg_3 : (*void, *void, [*]u8) -> *void callconv(.c) = xx objc_msgSend;
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ns_str := msg_3(ns_class, sel_with_utf8, "hi".ptr);
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msg_2 : (*void, *void) -> [*]u8 callconv(.c) = xx objc_msgSend;
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back := msg_2(ns_str, sel_utf8);
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return xx (back[0] + back[1]); // 'h' + 'i' = 104 + 105 = 209
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}
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