Files
sx/examples/0522-packs-pack-bare-args-cross-call.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

50 lines
1.6 KiB
Plaintext

// Regression: bare `$args` slice survives crossing a function-call
// boundary — both `.len` AND per-element values come through.
//
// Before the fix landed in `lazyLowerFunction`, the callee's
// `args.len` got constant-folded to the outer pack-fn mono's
// arity. `walk(args: []Any) { return args.len; }` lazily lowered
// inside `probe(..$args)`'s first mono inherited
// `pack_param_count["args"] = N` from the pack — the
// `<pack_name>.len` intercept in `lowerFieldAccess` then baked
// `ret i64 N` into walk's IR. Every subsequent shape's call to
// walk returned the same constant, regardless of the actual slice
// it received.
//
// `describe(args)` walks element-by-element so a silent
// truncation surfaces as a missing tail (or a different type at
// some position) — not just the wrong length.
//
// Walking under `#run` is intentional: the bare-`$args` slice
// carries `const_type` elements that only the interp materialises;
// LLVM emission leaves the per-element slots as undef (4A.bare
// semantics — bare-pack is comptime-only).
#import "modules/std.sx";
describe :: (args: []Any) -> string {
s := "[";
i : s64 = 0;
while i < args.len {
if i > 0 { s = concat(s, ", "); }
s = concat(s, type_name(args[i]));
i = i + 1;
}
return concat(s, "]");
}
probe :: (..$args) -> string {
list := $args;
return describe(list);
}
run_all :: () {
print("0: {}\n", probe());
print("1: {}\n", probe(1));
print("3: {}\n", probe(1, "x", true));
print("5: {}\n", probe(1, 2.0, "x", true, 99));
}
#run run_all();
main :: () { print("rt\n"); }