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sx/examples/packs/0515-packs-pack-type-position-three.sx
agra 66bdc70bf1 test: group examples into per-category folders
Move examples/*.sx and their expected/ snapshots into per-category
subfolders (examples/<category>/...). Folder = leading filename token,
with ffi-objc/ffi-jni kept whole; filenames are unchanged. The corpus
runner and LSP sweep now discover each category's expected/ dir, while
issues/ stays flat. Example 1058's repo-root-relative companion import
is made file-relative. Path strings embedded in 164 snapshots were
regenerated (path-only changes). Test-layout docs in CLAUDE.md updated.
2026-06-21 14:41:34 +03:00

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// Variadic heterogeneous type packs — step 3 complex smoke.
//
// Three-element pack with `$args[2]` (the third element) used in
// the return-type position. Confirms:
// - Multi-arg packs index past the zeroth element correctly.
// - Three distinct call shapes get three distinct monos.
// - The return-type slot is correctly substituted per-mono so
// the inferred caller type matches what the body actually
// returns (string / i64 / bool here).
#import "modules/std.sx";
third :: (..$args) -> $args[2] => args[2];
main :: () -> i32 {
a := third(1, 2, "third"); // (i64, i64, string) → "third"
b := third(true, 3.14, 99); // (bool, f64, i64) → 99
c := third("a", "b", false); // (string, string, bool) → false
print("{} {} {}\n", a, b, c);
return 0;
}