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sx/examples/0603-comptime-interp-variadic-any.sx
agra 1a8991ab27 refactor(ffi-linkage): Phase 7.4 — migrate straggler examples #foreign→extern
16 fn/global examples across categories (0415/0602/0603/1024/1025/1605/1607-1609/
1611/1616/1619/1622/1628/1635/1636): bare '#foreign'→'extern'. All cls=0 (no class
forms). Marker'd ones (1605/1609/1611 + the rest) corpus-validated; the 3 unmarked
uikit importers (1607/1608/1616) verified byte-identical via 'sx ir' probes.
Empty snapshot diff; suite green (647 corpus / 444 unit, 0 failed).

LEFT comment-only/provenance #foreign (0716/0729 + issues/0030-extern-global +
extern-test files 1223-1231/1332/1348/1349/1426) and the keep-list (identity
ffi-foreign-* + foreign-asserting diagnostics 1172/1174/1219/1228/1620) for Phase 8.
2026-06-15 07:03:53 +03:00

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// IR interpreter — variadic `..Any` indexing inside post-link callback.
//
// `format(fmt, ..args: []Any)` lowers to `any_to_string(args[i])` calls.
// The interpreter must be able to read every element of the packed
// `[N x Any]` slice from within a `#run`/post-link callback, not just
// the first two — and not just via JIT.
#import "modules/std.sx";
#import "modules/build.sx";
puts :: (s: [:0]u8) -> i32 extern libc;
cb :: () -> bool {
a := format("{}", "x");
puts("1-arg ok");
b := format("{} {}", "x", "y");
puts("2-arg ok");
c := format("{} {} {}", "x", "y", "z");
puts("3-arg ok");
true
}
configure :: () {
opts := build_options();
opts.set_post_link_callback(cb);
}
#run configure();
main :: () { print("rt\n"); }