Files
sx/examples/0537-packs-pack-xx-to-slice.sx
agra d8076b9333 lang: rename signed integer types sN -> iN
Surface rename of the signed integer family: s1..s64 become i1..i64
(u1..u64, usize, isize unchanged). 'string' keeps the s-prefix arm in
name classification; width parsing moves to the i-prefix arm next to
isize.

Internal TypeId tags follow the surface (.s8/.s16/.s32/.s64 ->
.i8/.i16/.i32/.i64), as do mono-key mangle fragments (ptr_i64,
tu_i64_bool) and all display/diagnostic formatting (i{d}).

Migrated in the same sweep: stdlib + examples + issue repros + FFI C
companions (shared symbol names like ffi_id_i64), expected
stdout/stderr/ir snapshots, specs.md, readme.md, CLAUDE.md/AGENTS.md,
implementation_plan.md, docs/, issue writeups. Vendored stb_image and
historical flow state left untouched.

zig build test: 426/426; examples suite: 595/595.
2026-06-12 09:31:53 +03:00

33 lines
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// `xx <pack>` materializes a comptime pack into a runtime slice (issue 0053):
// the explicit pack→slice bridge. With a `[]Any` target each element is boxed
// to `Any`; with a `[]P` target each is `xx`-erased to the protocol `P`. This is
// how you forward a pack to a runtime (`[]Any` / `[]P`) helper.
#import "modules/std.sx";
Show :: protocol { show :: () -> string; }
A :: struct {}
B :: struct { s: string; }
impl Show for A { show :: (self: *A) -> string => "A"; }
impl Show for B { show :: (self: *B) -> string => "B"; }
count_any :: (items: []Any) -> i64 { return items.len; }
show_all :: (items: []Show) -> i64 {
i := 0;
while i < items.len { print("{}\n", items[i].show()); i = i + 1; }
return items.len;
}
// `..$args` pack → []Any via `xx`.
fwd_any :: (..$args) -> i64 { return count_any(xx args); }
// `..xs: Show` pack → []Show via `xx`.
fwd_show :: (..xs: Show) -> i64 { return show_all(xx xs); }
main :: () -> i32 {
print("any={}\n", fwd_any(1, "hi", 2.5)); // 3
print("show={}\n", fwd_show(A.{}, B.{ s = "x" }, A.{})); // A B A, 3
0
}